Andrew Kelley 29cfd47d65 re-enable test-cases and get them all passing
Instead of using `zig test` to build a special version of the compiler
that runs all the test-cases, the zig build system is now used as much
as possible - all with the basic steps found in the standard library.

For incremental compilation tests (the ones that look like foo.0.zig,
foo.1.zig, foo.2.zig, etc.), a special version of the compiler is
compiled into a utility executable called "check-case" which checks
exactly one sequence of incremental updates in an independent
subprocess. Previously, all incremental and non-incremental test cases
were done in the same test runner process.

The compile error checking code is now simpler, but also a bit
rudimentary, and so it additionally makes sure that the actual compile
errors do not include *extra* messages, and it makes sure that the
actual compile errors output in the same order as expected. It is also
based on the "ends-with" property of each line rather than the previous
logic, which frankly I didn't want to touch with a ten-meter pole. The
compile error test cases have been updated to pass in light of these
differences.

Previously, 'error' mode with 0 compile errors was used to shoehorn in a
different kind of test-case - one that only checks if a piece of code
compiles without errors. Now there is a 'compile' mode of test-cases,
and 'error' must be only used when there are greater than 0 errors.

link test cases are updated to omit the target object format argument
when calling checkObject since that is no longer needed.

The test/stage2 directory is removed; the 2 files within are moved to be
directly in the test/ directory.
2023-03-15 10:48:14 -07:00

49 lines
1.4 KiB
Zig

const std = @import("std");
pub const requires_symlinks = true;
pub fn build(b: *std.Build) void {
const test_step = b.step("test", "Test it");
b.default_step = test_step;
add(b, test_step, .Debug);
add(b, test_step, .ReleaseFast);
add(b, test_step, .ReleaseSmall);
add(b, test_step, .ReleaseSafe);
}
fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
const target: std.zig.CrossTarget = .{ .os_tag = .macos };
const dylib = b.addSharedLibrary(.{
.name = "a",
.version = .{ .major = 1, .minor = 0 },
.optimize = optimize,
.target = target,
});
dylib.addCSourceFile("a.c", &.{});
dylib.linkLibC();
// -dead_strip_dylibs
// -needed-la
const exe = b.addExecutable(.{
.name = "test",
.optimize = optimize,
.target = target,
});
exe.addCSourceFile("main.c", &[0][]const u8{});
exe.linkLibC();
exe.linkSystemLibraryNeeded("a");
exe.addLibraryPathDirectorySource(dylib.getOutputDirectorySource());
exe.addRPathDirectorySource(dylib.getOutputDirectorySource());
exe.dead_strip_dylibs = true;
const check = exe.checkObject();
check.checkStart("cmd LOAD_DYLIB");
check.checkNext("name @rpath/liba.dylib");
const run_cmd = check.runAndCompare();
run_cmd.expectStdOutEqual("");
test_step.dependOn(&run_cmd.step);
}