mirror of
https://github.com/ziglang/zig.git
synced 2026-01-02 19:43:29 +00:00
1285 lines
47 KiB
Zig
1285 lines
47 KiB
Zig
gpa: Allocator,
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arena: Allocator,
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cases: std.ArrayList(Case),
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translate: std.ArrayList(Translate),
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incremental_cases: std.ArrayList(IncrementalCase),
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pub const IncrementalCase = struct {
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base_path: []const u8,
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};
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pub const Update = struct {
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/// The input to the current update. We simulate an incremental update
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/// with the file's contents changed to this value each update.
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///
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/// This value can change entirely between updates, which would be akin
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/// to deleting the source file and creating a new one from scratch; or
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/// you can keep it mostly consistent, with small changes, testing the
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/// effects of the incremental compilation.
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files: std.ArrayList(File),
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/// This is a description of what happens with the update, for debugging
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/// purposes.
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name: []const u8,
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case: union(enum) {
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/// Check that it compiles with no errors.
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Compile: void,
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/// Check the main binary output file against an expected set of bytes.
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/// This is most useful with, for example, `-ofmt=c`.
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CompareObjectFile: []const u8,
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/// An error update attempts to compile bad code, and ensures that it
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/// fails to compile, and for the expected reasons.
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/// A slice containing the expected stderr template, which
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/// gets some values substituted.
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Error: []const []const u8,
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/// An execution update compiles and runs the input, testing the
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/// stdout against the expected results
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/// This is a slice containing the expected message.
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Execution: []const u8,
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/// A header update compiles the input with the equivalent of
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/// `-femit-h` and tests the produced header against the
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/// expected result.
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Header: []const u8,
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},
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pub fn addSourceFile(update: *Update, name: []const u8, src: [:0]const u8) void {
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update.files.append(.{ .path = name, .src = src }) catch @panic("out of memory");
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}
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};
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pub const File = struct {
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src: [:0]const u8,
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path: []const u8,
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};
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pub const DepModule = struct {
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name: []const u8,
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path: []const u8,
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};
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pub const Backend = enum {
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stage1,
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stage2,
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llvm,
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};
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pub const CFrontend = enum {
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clang,
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aro,
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};
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/// A `Case` consists of a list of `Update`. The same `Compilation` is used for each
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/// update, so each update's source is treated as a single file being
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/// updated by the test harness and incrementally compiled.
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pub const Case = struct {
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/// The name of the test case. This is shown if a test fails, and
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/// otherwise ignored.
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name: []const u8,
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/// The platform the test targets. For non-native platforms, an emulator
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/// such as QEMU is required for tests to complete.
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target: std.Build.ResolvedTarget,
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/// In order to be able to run e.g. Execution updates, this must be set
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/// to Executable.
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output_mode: std.builtin.OutputMode,
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optimize_mode: std.builtin.OptimizeMode = .Debug,
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updates: std.ArrayList(Update),
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emit_bin: bool = true,
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emit_h: bool = false,
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is_test: bool = false,
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expect_exact: bool = false,
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backend: Backend = .stage2,
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link_libc: bool = false,
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pic: ?bool = null,
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pie: ?bool = null,
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deps: std.ArrayList(DepModule),
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pub fn addSourceFile(case: *Case, name: []const u8, src: [:0]const u8) void {
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const update = &case.updates.items[case.updates.items.len - 1];
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update.files.append(.{ .path = name, .src = src }) catch @panic("OOM");
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}
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pub fn addDepModule(case: *Case, name: []const u8, path: []const u8) void {
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case.deps.append(.{
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.name = name,
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.path = path,
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}) catch @panic("out of memory");
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}
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/// Adds a subcase in which the module is updated with `src`, compiled,
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/// run, and the output is tested against `result`.
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pub fn addCompareOutput(self: *Case, src: [:0]const u8, result: []const u8) void {
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self.updates.append(.{
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.files = std.ArrayList(File).init(self.updates.allocator),
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.name = "update",
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.case = .{ .Execution = result },
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}) catch @panic("out of memory");
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addSourceFile(self, "tmp.zig", src);
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}
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pub fn addError(self: *Case, src: [:0]const u8, errors: []const []const u8) void {
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return self.addErrorNamed("update", src, errors);
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}
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/// Adds a subcase in which the module is updated with `src`, which
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/// should contain invalid input, and ensures that compilation fails
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/// for the expected reasons, given in sequential order in `errors` in
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/// the form `:line:column: error: message`.
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pub fn addErrorNamed(
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self: *Case,
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name: []const u8,
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src: [:0]const u8,
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errors: []const []const u8,
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) void {
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assert(errors.len != 0);
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self.updates.append(.{
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.files = std.ArrayList(File).init(self.updates.allocator),
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.name = name,
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.case = .{ .Error = errors },
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}) catch @panic("out of memory");
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addSourceFile(self, "tmp.zig", src);
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}
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/// Adds a subcase in which the module is updated with `src`, and
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/// asserts that it compiles without issue
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pub fn addCompile(self: *Case, src: [:0]const u8) void {
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self.updates.append(.{
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.files = std.ArrayList(File).init(self.updates.allocator),
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.name = "compile",
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.case = .{ .Compile = {} },
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}) catch @panic("out of memory");
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addSourceFile(self, "tmp.zig", src);
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}
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};
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pub const Translate = struct {
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/// The name of the test case. This is shown if a test fails, and
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/// otherwise ignored.
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name: []const u8,
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input: [:0]const u8,
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target: std.Build.ResolvedTarget,
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link_libc: bool,
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c_frontend: CFrontend,
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kind: union(enum) {
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/// Translate the input, run it and check that it
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/// outputs the expected text.
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run: []const u8,
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/// Translate the input and check that it contains
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/// the expected lines of code.
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translate: []const []const u8,
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},
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};
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pub fn addExe(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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) *Case {
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ctx.cases.append(Case{
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.name = name,
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.target = target,
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Exe,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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/// Adds a test case for Zig input, producing an executable
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pub fn exe(ctx: *Cases, name: []const u8, target: std.Build.ResolvedTarget) *Case {
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return ctx.addExe(name, target);
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}
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pub fn exeFromCompiledC(ctx: *Cases, name: []const u8, target_query: std.Target.Query, b: *std.Build) *Case {
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var adjusted_query = target_query;
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adjusted_query.ofmt = .c;
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ctx.cases.append(Case{
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.name = name,
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.target = b.resolveTargetQuery(adjusted_query),
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Exe,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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.link_libc = true,
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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pub fn addObjLlvm(ctx: *Cases, name: []const u8, target: std.Build.ResolvedTarget) *Case {
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ctx.cases.append(Case{
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.name = name,
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.target = target,
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Obj,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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.backend = .llvm,
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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pub fn addObj(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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) *Case {
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ctx.cases.append(Case{
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.name = name,
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.target = target,
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Obj,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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pub fn addTest(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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) *Case {
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ctx.cases.append(Case{
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.name = name,
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.target = target,
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Exe,
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.is_test = true,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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/// Adds a test case for Zig input, producing an object file.
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pub fn obj(ctx: *Cases, name: []const u8, target: std.Build.ResolvedTarget) *Case {
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return ctx.addObj(name, target);
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}
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/// Adds a test case for ZIR input, producing an object file.
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pub fn objZIR(ctx: *Cases, name: []const u8, target: std.Build.ResolvedTarget) *Case {
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return ctx.addObj(name, target, .ZIR);
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}
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/// Adds a test case for Zig or ZIR input, producing C code.
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pub fn addC(ctx: *Cases, name: []const u8, target: std.Build.ResolvedTarget) *Case {
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var target_adjusted = target;
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target_adjusted.ofmt = std.Target.ObjectFormat.c;
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ctx.cases.append(Case{
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.name = name,
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.target = target_adjusted,
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.updates = std.ArrayList(Update).init(ctx.cases.allocator),
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.output_mode = .Obj,
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.deps = std.ArrayList(DepModule).init(ctx.arena),
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}) catch @panic("out of memory");
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return &ctx.cases.items[ctx.cases.items.len - 1];
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}
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pub fn addCompareOutput(
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ctx: *Cases,
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name: []const u8,
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src: [:0]const u8,
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expected_stdout: []const u8,
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) void {
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ctx.addExe(name, .{}).addCompareOutput(src, expected_stdout);
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}
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/// Adds a test case that compiles the Zig source given in `src`, executes
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/// it, runs it, and tests the output against `expected_stdout`
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pub fn compareOutput(
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ctx: *Cases,
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name: []const u8,
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src: [:0]const u8,
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expected_stdout: []const u8,
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) void {
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return ctx.addCompareOutput(name, src, expected_stdout);
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}
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pub fn addTransform(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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src: [:0]const u8,
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result: [:0]const u8,
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) void {
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ctx.addObj(name, target).addTransform(src, result);
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}
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/// Adds a test case that compiles the Zig given in `src` to ZIR and tests
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/// the ZIR against `result`
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pub fn transform(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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src: [:0]const u8,
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result: [:0]const u8,
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) void {
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ctx.addTransform(name, target, src, result);
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}
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pub fn addError(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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src: [:0]const u8,
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expected_errors: []const []const u8,
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) void {
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ctx.addObj(name, target).addError(src, expected_errors);
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}
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/// Adds a test case that ensures that the Zig given in `src` fails to
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/// compile for the expected reasons, given in sequential order in
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/// `expected_errors` in the form `:line:column: error: message`.
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pub fn compileError(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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src: [:0]const u8,
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expected_errors: []const []const u8,
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) void {
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ctx.addError(name, target, src, expected_errors);
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}
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/// Adds a test case that asserts that the Zig given in `src` compiles
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/// without any errors.
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pub fn addCompile(
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ctx: *Cases,
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name: []const u8,
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target: std.Build.ResolvedTarget,
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src: [:0]const u8,
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) void {
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ctx.addObj(name, target).addCompile(src);
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}
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/// Adds a test for each file in the provided directory.
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/// Testing strategy (TestStrategy) is inferred automatically from filenames.
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/// Recurses nested directories.
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///
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/// Each file should include a test manifest as a contiguous block of comments at
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/// the end of the file. The first line should be the test type, followed by a set of
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/// key-value config values, followed by a blank line, then the expected output.
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pub fn addFromDir(ctx: *Cases, dir: std.fs.Dir, b: *std.Build) void {
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var current_file: []const u8 = "none";
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ctx.addFromDirInner(dir, ¤t_file, b) catch |err| {
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std.debug.panicExtra(
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@errorReturnTrace(),
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@returnAddress(),
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"test harness failed to process file '{s}': {s}\n",
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.{ current_file, @errorName(err) },
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);
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};
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}
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fn addFromDirInner(
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ctx: *Cases,
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iterable_dir: std.fs.Dir,
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/// This is kept up to date with the currently being processed file so
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/// that if any errors occur the caller knows it happened during this file.
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current_file: *[]const u8,
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b: *std.Build,
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) !void {
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var it = try iterable_dir.walk(ctx.arena);
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var filenames = std.ArrayList([]const u8).init(ctx.arena);
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while (try it.next()) |entry| {
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if (entry.kind != .file) continue;
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// Ignore stuff such as .swp files
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if (!knownFileExtension(entry.basename)) continue;
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try filenames.append(try ctx.arena.dupe(u8, entry.path));
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}
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// Sort filenames, so that incremental tests are contiguous and in-order
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sortTestFilenames(filenames.items);
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var test_it = TestIterator{ .filenames = filenames.items };
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while (test_it.next()) |maybe_batch| {
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const batch = maybe_batch orelse break;
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const strategy: TestStrategy = if (batch.len > 1) .incremental else .independent;
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const filename = batch[0];
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current_file.* = filename;
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if (strategy == .incremental) {
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try ctx.incremental_cases.append(.{ .base_path = filename });
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continue;
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}
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const max_file_size = 10 * 1024 * 1024;
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const src = try iterable_dir.readFileAllocOptions(ctx.arena, filename, max_file_size, null, 1, 0);
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// Parse the manifest
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var manifest = try TestManifest.parse(ctx.arena, src);
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const backends = try manifest.getConfigForKeyAlloc(ctx.arena, "backend", Backend);
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const targets = try manifest.getConfigForKeyAlloc(ctx.arena, "target", std.Target.Query);
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const c_frontends = try manifest.getConfigForKeyAlloc(ctx.arena, "c_frontend", CFrontend);
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const is_test = try manifest.getConfigForKeyAssertSingle("is_test", bool);
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const link_libc = try manifest.getConfigForKeyAssertSingle("link_libc", bool);
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const output_mode = try manifest.getConfigForKeyAssertSingle("output_mode", std.builtin.OutputMode);
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const pic = try manifest.getConfigForKeyAssertSingle("pic", ?bool);
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const pie = try manifest.getConfigForKeyAssertSingle("pie", ?bool);
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const emit_bin = try manifest.getConfigForKeyAssertSingle("emit_bin", bool);
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|
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if (manifest.type == .translate_c) {
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for (c_frontends) |c_frontend| {
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for (targets) |target_query| {
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const output = try manifest.trailingLinesSplit(ctx.arena);
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try ctx.translate.append(.{
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.name = std.fs.path.stem(filename),
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.c_frontend = c_frontend,
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.target = b.resolveTargetQuery(target_query),
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.link_libc = link_libc,
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.input = src,
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.kind = .{ .translate = output },
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});
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}
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}
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continue;
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}
|
|
if (manifest.type == .run_translated_c) {
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for (c_frontends) |c_frontend| {
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for (targets) |target_query| {
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const output = try manifest.trailingSplit(ctx.arena);
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try ctx.translate.append(.{
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.name = std.fs.path.stem(filename),
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|
.c_frontend = c_frontend,
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|
.target = b.resolveTargetQuery(target_query),
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|
.link_libc = link_libc,
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|
.input = src,
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|
.kind = .{ .run = output },
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|
});
|
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}
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|
}
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continue;
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}
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|
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var cases = std.ArrayList(usize).init(ctx.arena);
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|
|
|
// Cross-product to get all possible test combinations
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|
for (targets) |target_query| {
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const resolved_target = b.resolveTargetQuery(target_query);
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const target = resolved_target.result;
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|
for (backends) |backend| {
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if (backend == .stage2 and
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target.cpu.arch != .wasm32 and target.cpu.arch != .x86_64 and target.cpu.arch != .spirv64)
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{
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|
// Other backends don't support new liveness format
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|
continue;
|
|
}
|
|
if (backend == .stage2 and target.os.tag == .macos and
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|
target.cpu.arch == .x86_64 and builtin.cpu.arch == .aarch64)
|
|
{
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|
// Rosetta has issues with ZLD
|
|
continue;
|
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}
|
|
|
|
const next = ctx.cases.items.len;
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try ctx.cases.append(.{
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.name = std.fs.path.stem(filename),
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|
.target = resolved_target,
|
|
.backend = backend,
|
|
.updates = std.ArrayList(Cases.Update).init(ctx.cases.allocator),
|
|
.emit_bin = emit_bin,
|
|
.is_test = is_test,
|
|
.output_mode = output_mode,
|
|
.link_libc = link_libc,
|
|
.pic = pic,
|
|
.pie = pie,
|
|
.deps = std.ArrayList(DepModule).init(ctx.cases.allocator),
|
|
});
|
|
try cases.append(next);
|
|
}
|
|
}
|
|
|
|
for (cases.items) |case_index| {
|
|
const case = &ctx.cases.items[case_index];
|
|
switch (manifest.type) {
|
|
.compile => {
|
|
case.addCompile(src);
|
|
},
|
|
.@"error" => {
|
|
const errors = try manifest.trailingLines(ctx.arena);
|
|
case.addError(src, errors);
|
|
},
|
|
.run => {
|
|
const output = try manifest.trailingSplit(ctx.arena);
|
|
case.addCompareOutput(src, output);
|
|
},
|
|
.translate_c => @panic("c_frontend specified for compile case"),
|
|
.run_translated_c => @panic("c_frontend specified for compile case"),
|
|
.cli => @panic("TODO cli tests"),
|
|
}
|
|
}
|
|
} else |err| {
|
|
// make sure the current file is set to the file that produced an error
|
|
current_file.* = test_it.currentFilename();
|
|
return err;
|
|
}
|
|
}
|
|
|
|
pub fn init(gpa: Allocator, arena: Allocator) Cases {
|
|
return .{
|
|
.gpa = gpa,
|
|
.cases = std.ArrayList(Case).init(gpa),
|
|
.translate = std.ArrayList(Translate).init(gpa),
|
|
.incremental_cases = std.ArrayList(IncrementalCase).init(gpa),
|
|
.arena = arena,
|
|
};
|
|
}
|
|
|
|
pub const TranslateCOptions = struct {
|
|
skip_translate_c: bool = false,
|
|
skip_run_translated_c: bool = false,
|
|
};
|
|
pub fn lowerToTranslateCSteps(
|
|
self: *Cases,
|
|
b: *std.Build,
|
|
parent_step: *std.Build.Step,
|
|
test_filters: []const []const u8,
|
|
test_target_filters: []const []const u8,
|
|
target: std.Build.ResolvedTarget,
|
|
translate_c_options: TranslateCOptions,
|
|
) void {
|
|
const tests = @import("../tests.zig");
|
|
const test_translate_c_step = b.step("test-translate-c", "Run the C translation tests");
|
|
if (!translate_c_options.skip_translate_c) {
|
|
tests.addTranslateCTests(b, test_translate_c_step, test_filters, test_target_filters);
|
|
parent_step.dependOn(test_translate_c_step);
|
|
}
|
|
|
|
const test_run_translated_c_step = b.step("test-run-translated-c", "Run the Run-Translated-C tests");
|
|
if (!translate_c_options.skip_run_translated_c) {
|
|
tests.addRunTranslatedCTests(b, test_run_translated_c_step, test_filters, target);
|
|
parent_step.dependOn(test_run_translated_c_step);
|
|
}
|
|
|
|
for (self.translate.items) |case| switch (case.kind) {
|
|
.run => |output| {
|
|
if (translate_c_options.skip_run_translated_c) continue;
|
|
const annotated_case_name = b.fmt("run-translated-c {s}", .{case.name});
|
|
for (test_filters) |test_filter| {
|
|
if (std.mem.indexOf(u8, annotated_case_name, test_filter)) |_| break;
|
|
} else if (test_filters.len > 0) continue;
|
|
if (!std.process.can_spawn) {
|
|
std.debug.print("Unable to spawn child processes on {s}, skipping test.\n", .{@tagName(builtin.os.tag)});
|
|
continue; // Pass test.
|
|
}
|
|
|
|
const write_src = b.addWriteFiles();
|
|
const file_source = write_src.add("tmp.c", case.input);
|
|
|
|
const translate_c = b.addTranslateC(.{
|
|
.root_source_file = file_source,
|
|
.optimize = .Debug,
|
|
.target = case.target,
|
|
.link_libc = case.link_libc,
|
|
.use_clang = case.c_frontend == .clang,
|
|
});
|
|
translate_c.step.name = b.fmt("{s} translate-c", .{annotated_case_name});
|
|
|
|
const run_exe = b.addExecutable(.{
|
|
.name = "translated_c",
|
|
.root_module = translate_c.createModule(),
|
|
});
|
|
run_exe.step.name = b.fmt("{s} build-exe", .{annotated_case_name});
|
|
run_exe.linkLibC();
|
|
const run = b.addRunArtifact(run_exe);
|
|
run.step.name = b.fmt("{s} run", .{annotated_case_name});
|
|
run.expectStdOutEqual(output);
|
|
run.skip_foreign_checks = true;
|
|
|
|
test_run_translated_c_step.dependOn(&run.step);
|
|
},
|
|
.translate => |output| {
|
|
if (translate_c_options.skip_translate_c) continue;
|
|
const annotated_case_name = b.fmt("zig translate-c {s}", .{case.name});
|
|
for (test_filters) |test_filter| {
|
|
if (std.mem.indexOf(u8, annotated_case_name, test_filter)) |_| break;
|
|
} else if (test_filters.len > 0) continue;
|
|
|
|
const write_src = b.addWriteFiles();
|
|
const file_source = write_src.add("tmp.c", case.input);
|
|
|
|
const translate_c = b.addTranslateC(.{
|
|
.root_source_file = file_source,
|
|
.optimize = .Debug,
|
|
.target = case.target,
|
|
.link_libc = case.link_libc,
|
|
.use_clang = case.c_frontend == .clang,
|
|
});
|
|
translate_c.step.name = b.fmt("{s} translate-c", .{annotated_case_name});
|
|
|
|
const check_file = translate_c.addCheckFile(output);
|
|
check_file.step.name = b.fmt("{s} CheckFile", .{annotated_case_name});
|
|
test_translate_c_step.dependOn(&check_file.step);
|
|
},
|
|
};
|
|
}
|
|
|
|
pub fn lowerToBuildSteps(
|
|
self: *Cases,
|
|
b: *std.Build,
|
|
parent_step: *std.Build.Step,
|
|
test_filters: []const []const u8,
|
|
test_target_filters: []const []const u8,
|
|
) void {
|
|
const host = std.zig.system.resolveTargetQuery(.{}) catch |err|
|
|
std.debug.panic("unable to detect native host: {s}\n", .{@errorName(err)});
|
|
|
|
for (self.incremental_cases.items) |incr_case| {
|
|
if (true) {
|
|
// TODO: incremental tests are disabled for now, as incremental compilation bugs were
|
|
// getting in the way of practical improvements to the compiler, and incremental
|
|
// compilation is not currently used. They should be re-enabled once incremental
|
|
// compilation is in a happier state.
|
|
continue;
|
|
}
|
|
// TODO: the logic for running these was bad, so I've ripped it out. Rewrite this
|
|
// in a way that actually spawns the compiler, communicating with it over the
|
|
// compiler server protocol.
|
|
_ = incr_case;
|
|
@panic("TODO implement incremental test case executor");
|
|
}
|
|
|
|
for (self.cases.items) |case| {
|
|
if (case.updates.items.len != 1) continue; // handled with incremental_cases above
|
|
assert(case.updates.items.len == 1);
|
|
const update = case.updates.items[0];
|
|
|
|
for (test_filters) |test_filter| {
|
|
if (std.mem.indexOf(u8, case.name, test_filter)) |_| break;
|
|
} else if (test_filters.len > 0) continue;
|
|
|
|
const triple_txt = case.target.result.zigTriple(b.allocator) catch @panic("OOM");
|
|
|
|
if (test_target_filters.len > 0) {
|
|
for (test_target_filters) |filter| {
|
|
if (std.mem.indexOf(u8, triple_txt, filter) != null) break;
|
|
} else continue;
|
|
}
|
|
|
|
const writefiles = b.addWriteFiles();
|
|
var file_sources = std.StringHashMap(std.Build.LazyPath).init(b.allocator);
|
|
defer file_sources.deinit();
|
|
const first_file = update.files.items[0];
|
|
const root_source_file = writefiles.add(first_file.path, first_file.src);
|
|
file_sources.put(first_file.path, root_source_file) catch @panic("OOM");
|
|
for (update.files.items[1..]) |file| {
|
|
file_sources.put(file.path, writefiles.add(file.path, file.src)) catch @panic("OOM");
|
|
}
|
|
|
|
const mod = b.createModule(.{
|
|
.root_source_file = root_source_file,
|
|
.target = case.target,
|
|
.optimize = case.optimize_mode,
|
|
});
|
|
if (case.link_libc) mod.link_libc = true;
|
|
if (case.pic) |pic| mod.pic = pic;
|
|
for (case.deps.items) |dep| {
|
|
mod.addAnonymousImport(dep.name, .{
|
|
.root_source_file = file_sources.get(dep.path).?,
|
|
});
|
|
}
|
|
|
|
const artifact = if (case.is_test) b.addTest(.{
|
|
.name = case.name,
|
|
.root_module = mod,
|
|
}) else switch (case.output_mode) {
|
|
.Obj => b.addObject(.{
|
|
.name = case.name,
|
|
.root_module = mod,
|
|
}),
|
|
.Lib => b.addStaticLibrary(.{
|
|
.name = case.name,
|
|
.root_module = mod,
|
|
}),
|
|
.Exe => b.addExecutable(.{
|
|
.name = case.name,
|
|
.root_module = mod,
|
|
}),
|
|
};
|
|
|
|
if (case.pie) |pie| artifact.pie = pie;
|
|
|
|
switch (case.backend) {
|
|
.stage1 => continue,
|
|
.stage2 => {
|
|
artifact.use_llvm = false;
|
|
artifact.use_lld = false;
|
|
},
|
|
.llvm => {
|
|
artifact.use_llvm = true;
|
|
},
|
|
}
|
|
|
|
switch (update.case) {
|
|
.Compile => {
|
|
// Force the binary to be emitted if requested.
|
|
if (case.emit_bin) {
|
|
_ = artifact.getEmittedBin();
|
|
}
|
|
parent_step.dependOn(&artifact.step);
|
|
},
|
|
.CompareObjectFile => |expected_output| {
|
|
const check = b.addCheckFile(artifact.getEmittedBin(), .{
|
|
.expected_exact = expected_output,
|
|
});
|
|
|
|
parent_step.dependOn(&check.step);
|
|
},
|
|
.Error => |expected_msgs| {
|
|
assert(expected_msgs.len != 0);
|
|
artifact.expect_errors = .{ .exact = expected_msgs };
|
|
parent_step.dependOn(&artifact.step);
|
|
},
|
|
.Execution => |expected_stdout| no_exec: {
|
|
const run = if (case.target.result.ofmt == .c) run_step: {
|
|
if (getExternalExecutor(host, &case.target.result, .{ .link_libc = true }) != .native) {
|
|
// We wouldn't be able to run the compiled C code.
|
|
break :no_exec;
|
|
}
|
|
const run_c = b.addSystemCommand(&.{
|
|
b.graph.zig_exe,
|
|
"run",
|
|
"-cflags",
|
|
"-Ilib",
|
|
"-std=c99",
|
|
"-pedantic",
|
|
"-Werror",
|
|
"-Wno-dollar-in-identifier-extension",
|
|
"-Wno-incompatible-library-redeclaration", // https://github.com/ziglang/zig/issues/875
|
|
"-Wno-incompatible-pointer-types",
|
|
"-Wno-overlength-strings",
|
|
"--",
|
|
"-lc",
|
|
"-target",
|
|
triple_txt,
|
|
});
|
|
run_c.addArtifactArg(artifact);
|
|
break :run_step run_c;
|
|
} else b.addRunArtifact(artifact);
|
|
run.skip_foreign_checks = true;
|
|
if (!case.is_test) {
|
|
run.expectStdOutEqual(expected_stdout);
|
|
}
|
|
parent_step.dependOn(&run.step);
|
|
},
|
|
.Header => @panic("TODO"),
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Sort test filenames in-place, so that incremental test cases ("foo.0.zig",
|
|
/// "foo.1.zig", etc.) are contiguous and appear in numerical order.
|
|
fn sortTestFilenames(filenames: [][]const u8) void {
|
|
const Context = struct {
|
|
pub fn lessThan(_: @This(), a: []const u8, b: []const u8) bool {
|
|
const a_parts = getTestFileNameParts(a);
|
|
const b_parts = getTestFileNameParts(b);
|
|
|
|
// Sort "<base_name>.X.<file_ext>" based on "<base_name>" and "<file_ext>" first
|
|
return switch (std.mem.order(u8, a_parts.base_name, b_parts.base_name)) {
|
|
.lt => true,
|
|
.gt => false,
|
|
.eq => switch (std.mem.order(u8, a_parts.file_ext, b_parts.file_ext)) {
|
|
.lt => true,
|
|
.gt => false,
|
|
.eq => {
|
|
// a and b differ only in their ".X" part
|
|
|
|
// Sort "<base_name>.<file_ext>" before any "<base_name>.X.<file_ext>"
|
|
if (a_parts.test_index) |a_index| {
|
|
if (b_parts.test_index) |b_index| {
|
|
// Make sure that incremental tests appear in linear order
|
|
return a_index < b_index;
|
|
} else {
|
|
return false;
|
|
}
|
|
} else {
|
|
return b_parts.test_index != null;
|
|
}
|
|
},
|
|
},
|
|
};
|
|
}
|
|
};
|
|
std.mem.sort([]const u8, filenames, Context{}, Context.lessThan);
|
|
}
|
|
|
|
/// Iterates a set of filenames extracting batches that are either incremental
|
|
/// ("foo.0.zig", "foo.1.zig", etc.) or independent ("foo.zig", "bar.zig", etc.).
|
|
/// Assumes filenames are sorted.
|
|
const TestIterator = struct {
|
|
start: usize = 0,
|
|
end: usize = 0,
|
|
filenames: []const []const u8,
|
|
/// reset on each call to `next`
|
|
index: usize = 0,
|
|
|
|
const Error = error{InvalidIncrementalTestIndex};
|
|
|
|
fn next(it: *TestIterator) Error!?[]const []const u8 {
|
|
try it.nextInner();
|
|
if (it.start == it.end) return null;
|
|
return it.filenames[it.start..it.end];
|
|
}
|
|
|
|
fn nextInner(it: *TestIterator) Error!void {
|
|
it.start = it.end;
|
|
if (it.end == it.filenames.len) return;
|
|
if (it.end + 1 == it.filenames.len) {
|
|
it.end += 1;
|
|
return;
|
|
}
|
|
|
|
const remaining = it.filenames[it.end..];
|
|
it.index = 0;
|
|
while (it.index < remaining.len - 1) : (it.index += 1) {
|
|
// First, check if this file is part of an incremental update sequence
|
|
// Split filename into "<base_name>.<index>.<file_ext>"
|
|
const prev_parts = getTestFileNameParts(remaining[it.index]);
|
|
const new_parts = getTestFileNameParts(remaining[it.index + 1]);
|
|
|
|
// If base_name and file_ext match, these files are in the same test sequence
|
|
// and the new one should be the incremented version of the previous test
|
|
if (std.mem.eql(u8, prev_parts.base_name, new_parts.base_name) and
|
|
std.mem.eql(u8, prev_parts.file_ext, new_parts.file_ext))
|
|
{
|
|
// This is "foo.X.zig" followed by "foo.Y.zig". Make sure that X = Y + 1
|
|
if (prev_parts.test_index == null)
|
|
return error.InvalidIncrementalTestIndex;
|
|
if (new_parts.test_index == null)
|
|
return error.InvalidIncrementalTestIndex;
|
|
if (new_parts.test_index.? != prev_parts.test_index.? + 1)
|
|
return error.InvalidIncrementalTestIndex;
|
|
} else {
|
|
// This is not the same test sequence, so the new file must be the first file
|
|
// in a new sequence ("*.0.zig") or an independent test file ("*.zig")
|
|
if (new_parts.test_index != null and new_parts.test_index.? != 0)
|
|
return error.InvalidIncrementalTestIndex;
|
|
|
|
it.end += it.index + 1;
|
|
break;
|
|
}
|
|
} else {
|
|
it.end += remaining.len;
|
|
}
|
|
}
|
|
|
|
/// In the event of an `error.InvalidIncrementalTestIndex`, this function can
|
|
/// be used to find the current filename that was being processed.
|
|
/// Asserts the iterator hasn't reached the end.
|
|
fn currentFilename(it: TestIterator) []const u8 {
|
|
assert(it.end != it.filenames.len);
|
|
const remaining = it.filenames[it.end..];
|
|
return remaining[it.index + 1];
|
|
}
|
|
};
|
|
|
|
/// For a filename in the format "<filename>.X.<ext>" or "<filename>.<ext>", returns
|
|
/// "<filename>", "<ext>" and X parsed as a decimal number. If X is not present, or
|
|
/// cannot be parsed as a decimal number, it is treated as part of <filename>
|
|
fn getTestFileNameParts(name: []const u8) struct {
|
|
base_name: []const u8,
|
|
file_ext: []const u8,
|
|
test_index: ?usize,
|
|
} {
|
|
const file_ext = std.fs.path.extension(name);
|
|
const trimmed = name[0 .. name.len - file_ext.len]; // Trim off ".<ext>"
|
|
const maybe_index = std.fs.path.extension(trimmed); // Extract ".X"
|
|
|
|
// Attempt to parse index
|
|
const index: ?usize = if (maybe_index.len > 0)
|
|
std.fmt.parseInt(usize, maybe_index[1..], 10) catch null
|
|
else
|
|
null;
|
|
|
|
// Adjust "<filename>" extent based on parsing success
|
|
const base_name_end = trimmed.len - if (index != null) maybe_index.len else 0;
|
|
return .{
|
|
.base_name = name[0..base_name_end],
|
|
.file_ext = if (file_ext.len > 0) file_ext[1..] else file_ext,
|
|
.test_index = index,
|
|
};
|
|
}
|
|
|
|
const TestStrategy = enum {
|
|
/// Execute tests as independent compilations, unless they are explicitly
|
|
/// incremental ("foo.0.zig", "foo.1.zig", etc.)
|
|
independent,
|
|
/// Execute all tests as incremental updates to a single compilation. Explicitly
|
|
/// incremental tests ("foo.0.zig", "foo.1.zig", etc.) still execute in order
|
|
incremental,
|
|
};
|
|
|
|
/// Default config values for known test manifest key-value pairings.
|
|
/// Currently handled defaults are:
|
|
/// * backend
|
|
/// * target
|
|
/// * output_mode
|
|
/// * is_test
|
|
const TestManifestConfigDefaults = struct {
|
|
/// Asserts if the key doesn't exist - yep, it's an oversight alright.
|
|
fn get(@"type": TestManifest.Type, key: []const u8) []const u8 {
|
|
if (std.mem.eql(u8, key, "backend")) {
|
|
return "stage2";
|
|
} else if (std.mem.eql(u8, key, "target")) {
|
|
if (@"type" == .@"error" or @"type" == .translate_c or @"type" == .run_translated_c) {
|
|
return "native";
|
|
}
|
|
return comptime blk: {
|
|
var defaults: []const u8 = "";
|
|
// TODO should we only return "mainstream" targets by default here?
|
|
// TODO we should also specify ABIs explicitly as the backends are
|
|
// getting more and more complete
|
|
// Linux
|
|
for (&[_][]const u8{ "x86_64", "arm", "aarch64" }) |arch| {
|
|
defaults = defaults ++ arch ++ "-linux" ++ ",";
|
|
}
|
|
// macOS
|
|
for (&[_][]const u8{ "x86_64", "aarch64" }) |arch| {
|
|
defaults = defaults ++ arch ++ "-macos" ++ ",";
|
|
}
|
|
// Windows
|
|
defaults = defaults ++ "x86_64-windows" ++ ",";
|
|
// Wasm
|
|
defaults = defaults ++ "wasm32-wasi";
|
|
break :blk defaults;
|
|
};
|
|
} else if (std.mem.eql(u8, key, "output_mode")) {
|
|
return switch (@"type") {
|
|
.@"error" => "Obj",
|
|
.run => "Exe",
|
|
.compile => "Obj",
|
|
.translate_c => "Obj",
|
|
.run_translated_c => "Obj",
|
|
.cli => @panic("TODO test harness for CLI tests"),
|
|
};
|
|
} else if (std.mem.eql(u8, key, "emit_bin")) {
|
|
return "true";
|
|
} else if (std.mem.eql(u8, key, "is_test")) {
|
|
return "false";
|
|
} else if (std.mem.eql(u8, key, "link_libc")) {
|
|
return "false";
|
|
} else if (std.mem.eql(u8, key, "c_frontend")) {
|
|
return "clang";
|
|
} else if (std.mem.eql(u8, key, "pic")) {
|
|
return "null";
|
|
} else if (std.mem.eql(u8, key, "pie")) {
|
|
return "null";
|
|
} else unreachable;
|
|
}
|
|
};
|
|
|
|
/// Manifest syntax example:
|
|
/// (see https://github.com/ziglang/zig/issues/11288)
|
|
///
|
|
/// error
|
|
/// backend=stage1,stage2
|
|
/// output_mode=exe
|
|
///
|
|
/// :3:19: error: foo
|
|
///
|
|
/// run
|
|
/// target=x86_64-linux,aarch64-macos
|
|
///
|
|
/// I am expected stdout! Hello!
|
|
///
|
|
/// cli
|
|
///
|
|
/// build test
|
|
const TestManifest = struct {
|
|
type: Type,
|
|
config_map: std.StringHashMap([]const u8),
|
|
trailing_bytes: []const u8 = "",
|
|
|
|
const valid_keys = std.StaticStringMap(void).initComptime(.{
|
|
.{ "emit_bin", {} },
|
|
.{ "is_test", {} },
|
|
.{ "output_mode", {} },
|
|
.{ "target", {} },
|
|
.{ "c_frontend", {} },
|
|
.{ "link_libc", {} },
|
|
.{ "backend", {} },
|
|
.{ "pic", {} },
|
|
.{ "pie", {} },
|
|
});
|
|
|
|
const Type = enum {
|
|
@"error",
|
|
run,
|
|
cli,
|
|
compile,
|
|
translate_c,
|
|
run_translated_c,
|
|
};
|
|
|
|
const TrailingIterator = struct {
|
|
inner: std.mem.TokenIterator(u8, .any),
|
|
|
|
fn next(self: *TrailingIterator) ?[]const u8 {
|
|
const next_inner = self.inner.next() orelse return null;
|
|
return if (next_inner.len == 2) "" else std.mem.trimRight(u8, next_inner[3..], " \t");
|
|
}
|
|
};
|
|
|
|
fn ConfigValueIterator(comptime T: type) type {
|
|
return struct {
|
|
inner: std.mem.SplitIterator(u8, .scalar),
|
|
|
|
fn next(self: *@This()) !?T {
|
|
const next_raw = self.inner.next() orelse return null;
|
|
const parseFn = getDefaultParser(T);
|
|
return try parseFn(next_raw);
|
|
}
|
|
};
|
|
}
|
|
|
|
fn parse(arena: Allocator, bytes: []const u8) !TestManifest {
|
|
// The manifest is the last contiguous block of comments in the file
|
|
// We scan for the beginning by searching backward for the first non-empty line that does not start with "//"
|
|
var start: ?usize = null;
|
|
var end: usize = bytes.len;
|
|
if (bytes.len > 0) {
|
|
var cursor: usize = bytes.len - 1;
|
|
while (true) {
|
|
// Move to beginning of line
|
|
while (cursor > 0 and bytes[cursor - 1] != '\n') cursor -= 1;
|
|
|
|
if (std.mem.startsWith(u8, bytes[cursor..], "//")) {
|
|
start = cursor; // Contiguous comment line, include in manifest
|
|
} else {
|
|
if (start != null) break; // Encountered non-comment line, end of manifest
|
|
|
|
// We ignore all-whitespace lines following the comment block, but anything else
|
|
// means that there is no manifest present.
|
|
if (std.mem.trim(u8, bytes[cursor..end], " \r\n\t").len == 0) {
|
|
end = cursor;
|
|
} else break; // If it's not whitespace, there is no manifest
|
|
}
|
|
|
|
// Move to previous line
|
|
if (cursor != 0) cursor -= 1 else break;
|
|
}
|
|
}
|
|
|
|
const actual_start = start orelse return error.MissingTestManifest;
|
|
const manifest_bytes = bytes[actual_start..end];
|
|
|
|
var it = std.mem.tokenizeAny(u8, manifest_bytes, "\r\n");
|
|
|
|
// First line is the test type
|
|
const tt: Type = blk: {
|
|
const line = it.next() orelse return error.MissingTestCaseType;
|
|
const raw = std.mem.trim(u8, line[2..], " \t");
|
|
if (std.mem.eql(u8, raw, "error")) {
|
|
break :blk .@"error";
|
|
} else if (std.mem.eql(u8, raw, "run")) {
|
|
break :blk .run;
|
|
} else if (std.mem.eql(u8, raw, "cli")) {
|
|
break :blk .cli;
|
|
} else if (std.mem.eql(u8, raw, "compile")) {
|
|
break :blk .compile;
|
|
} else if (std.mem.eql(u8, raw, "translate-c")) {
|
|
break :blk .translate_c;
|
|
} else if (std.mem.eql(u8, raw, "run-translated-c")) {
|
|
break :blk .run_translated_c;
|
|
} else {
|
|
std.log.warn("unknown test case type requested: {s}", .{raw});
|
|
return error.UnknownTestCaseType;
|
|
}
|
|
};
|
|
|
|
var manifest: TestManifest = .{
|
|
.type = tt,
|
|
.config_map = std.StringHashMap([]const u8).init(arena),
|
|
};
|
|
|
|
// Any subsequent line until a blank comment line is key=value(s) pair
|
|
while (it.next()) |line| {
|
|
const trimmed = std.mem.trim(u8, line[2..], " \t");
|
|
if (trimmed.len == 0) break;
|
|
|
|
// Parse key=value(s)
|
|
var kv_it = std.mem.splitScalar(u8, trimmed, '=');
|
|
const key = kv_it.first();
|
|
if (!valid_keys.has(key)) return error.InvalidKey;
|
|
try manifest.config_map.putNoClobber(key, kv_it.next() orelse return error.MissingValuesForConfig);
|
|
}
|
|
|
|
// Finally, trailing is expected output
|
|
manifest.trailing_bytes = manifest_bytes[it.index..];
|
|
|
|
return manifest;
|
|
}
|
|
|
|
fn getConfigForKey(
|
|
self: TestManifest,
|
|
key: []const u8,
|
|
comptime T: type,
|
|
) ConfigValueIterator(T) {
|
|
const bytes = self.config_map.get(key) orelse TestManifestConfigDefaults.get(self.type, key);
|
|
return ConfigValueIterator(T){
|
|
.inner = std.mem.splitScalar(u8, bytes, ','),
|
|
};
|
|
}
|
|
|
|
fn getConfigForKeyAlloc(
|
|
self: TestManifest,
|
|
allocator: Allocator,
|
|
key: []const u8,
|
|
comptime T: type,
|
|
) ![]const T {
|
|
var out = std.ArrayList(T).init(allocator);
|
|
defer out.deinit();
|
|
var it = self.getConfigForKey(key, T);
|
|
while (try it.next()) |item| {
|
|
try out.append(item);
|
|
}
|
|
return try out.toOwnedSlice();
|
|
}
|
|
|
|
fn getConfigForKeyAssertSingle(self: TestManifest, key: []const u8, comptime T: type) !T {
|
|
var it = self.getConfigForKey(key, T);
|
|
const res = (try it.next()) orelse unreachable;
|
|
assert((try it.next()) == null);
|
|
return res;
|
|
}
|
|
|
|
fn trailing(self: TestManifest) TrailingIterator {
|
|
return .{
|
|
.inner = std.mem.tokenizeAny(u8, self.trailing_bytes, "\r\n"),
|
|
};
|
|
}
|
|
|
|
fn trailingSplit(self: TestManifest, allocator: Allocator) error{OutOfMemory}![]const u8 {
|
|
var out = std.ArrayList(u8).init(allocator);
|
|
defer out.deinit();
|
|
var trailing_it = self.trailing();
|
|
while (trailing_it.next()) |line| {
|
|
try out.appendSlice(line);
|
|
try out.append('\n');
|
|
}
|
|
if (out.items.len > 0) {
|
|
try out.resize(out.items.len - 1);
|
|
}
|
|
return try out.toOwnedSlice();
|
|
}
|
|
|
|
fn trailingLines(self: TestManifest, allocator: Allocator) error{OutOfMemory}![]const []const u8 {
|
|
var out = std.ArrayList([]const u8).init(allocator);
|
|
defer out.deinit();
|
|
var it = self.trailing();
|
|
while (it.next()) |line| {
|
|
try out.append(line);
|
|
}
|
|
return try out.toOwnedSlice();
|
|
}
|
|
|
|
fn trailingLinesSplit(self: TestManifest, allocator: Allocator) error{OutOfMemory}![]const []const u8 {
|
|
// Collect output lines split by empty lines
|
|
var out = std.ArrayList([]const u8).init(allocator);
|
|
defer out.deinit();
|
|
var buf = std.ArrayList(u8).init(allocator);
|
|
defer buf.deinit();
|
|
var it = self.trailing();
|
|
while (it.next()) |line| {
|
|
if (line.len == 0) {
|
|
if (buf.items.len != 0) {
|
|
try out.append(try buf.toOwnedSlice());
|
|
buf.items.len = 0;
|
|
}
|
|
continue;
|
|
}
|
|
try buf.appendSlice(line);
|
|
try buf.append('\n');
|
|
}
|
|
try out.append(try buf.toOwnedSlice());
|
|
return try out.toOwnedSlice();
|
|
}
|
|
|
|
fn ParseFn(comptime T: type) type {
|
|
return fn ([]const u8) anyerror!T;
|
|
}
|
|
|
|
fn getDefaultParser(comptime T: type) ParseFn(T) {
|
|
if (T == std.Target.Query) return struct {
|
|
fn parse(str: []const u8) anyerror!T {
|
|
return std.Target.Query.parse(.{ .arch_os_abi = str });
|
|
}
|
|
}.parse;
|
|
|
|
switch (@typeInfo(T)) {
|
|
.int => return struct {
|
|
fn parse(str: []const u8) anyerror!T {
|
|
return try std.fmt.parseInt(T, str, 0);
|
|
}
|
|
}.parse,
|
|
.bool => return struct {
|
|
fn parse(str: []const u8) anyerror!T {
|
|
if (std.mem.eql(u8, str, "true")) return true;
|
|
if (std.mem.eql(u8, str, "false")) return false;
|
|
std.debug.print("{s}\n", .{str});
|
|
return error.InvalidBool;
|
|
}
|
|
}.parse,
|
|
.@"enum" => return struct {
|
|
fn parse(str: []const u8) anyerror!T {
|
|
return std.meta.stringToEnum(T, str) orelse {
|
|
std.log.err("unknown enum variant for {s}: {s}", .{ @typeName(T), str });
|
|
return error.UnknownEnumVariant;
|
|
};
|
|
}
|
|
}.parse,
|
|
.optional => |o| return struct {
|
|
fn parse(str: []const u8) anyerror!T {
|
|
if (std.mem.eql(u8, str, "null")) return null;
|
|
return try getDefaultParser(o.child)(str);
|
|
}
|
|
}.parse,
|
|
else => @compileError("no default parser for " ++ @typeName(T)),
|
|
}
|
|
}
|
|
};
|
|
|
|
const Cases = @This();
|
|
const builtin = @import("builtin");
|
|
const std = @import("std");
|
|
const assert = std.debug.assert;
|
|
const Allocator = std.mem.Allocator;
|
|
const getExternalExecutor = std.zig.system.getExternalExecutor;
|
|
|
|
fn resolveTargetQuery(query: std.Target.Query) std.Build.ResolvedTarget {
|
|
return .{
|
|
.query = query,
|
|
.target = std.zig.system.resolveTargetQuery(query) catch
|
|
@panic("unable to resolve target query"),
|
|
};
|
|
}
|
|
|
|
fn knownFileExtension(filename: []const u8) bool {
|
|
// List taken from `Compilation.classifyFileExt` in the compiler.
|
|
for ([_][]const u8{
|
|
".c", ".C", ".cc", ".cpp",
|
|
".cxx", ".stub", ".m", ".mm",
|
|
".ll", ".bc", ".s", ".S",
|
|
".h", ".zig", ".so", ".dll",
|
|
".dylib", ".tbd", ".a", ".lib",
|
|
".o", ".obj", ".cu", ".def",
|
|
".rc", ".res", ".manifest",
|
|
}) |ext| {
|
|
if (std.mem.endsWith(u8, filename, ext)) return true;
|
|
}
|
|
// Final check for .so.X, .so.X.Y, .so.X.Y.Z.
|
|
// From `Compilation.hasSharedLibraryExt`.
|
|
var it = std.mem.splitScalar(u8, filename, '.');
|
|
_ = it.first();
|
|
var so_txt = it.next() orelse return false;
|
|
while (!std.mem.eql(u8, so_txt, "so")) {
|
|
so_txt = it.next() orelse return false;
|
|
}
|
|
const n1 = it.next() orelse return false;
|
|
const n2 = it.next();
|
|
const n3 = it.next();
|
|
_ = std.fmt.parseInt(u32, n1, 10) catch return false;
|
|
if (n2) |x| _ = std.fmt.parseInt(u32, x, 10) catch return false;
|
|
if (n3) |x| _ = std.fmt.parseInt(u32, x, 10) catch return false;
|
|
if (it.next() != null) return false;
|
|
return false;
|
|
}
|