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zig test: when -ofmt=c, default to zig run as test exec

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Previously when running `zig test` with the C backend, it would return
`error.InvalidExe` because it would try to run the C code source file as
a binary. Now, by default, it will try to run it with
`zig run -lc foo.c` and this can be overridden with the standard
`--test-cmd` flags.
This commit is contained in:
Andrew Kelley 2021-10-27 15:28:33 -07:00
parent 6504c57176
commit e02caa7e29
1 changed files with 10 additions and 0 deletions
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10
src/main.zig
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@ -2188,6 +2188,16 @@ fn buildOutputType(
warn("--watch is not recommended with the stage1 backend; it leaks memory and is not capable of incremental compilation", .{});
}
if (test_exec_args.items.len == 0 and object_format == .c) default_exec_args: {
// Default to using `zig run` to execute the produced .c code from `zig test`.
const c_code_loc = emit_bin_loc orelse break :default_exec_args;
const c_code_directory = c_code_loc.directory orelse comp.bin_file.options.emit.?.directory;
const c_code_path = try fs.path.join(arena, &[_][]const u8{
c_code_directory.path orelse ".", c_code_loc.basename,
});
try test_exec_args.appendSlice(&.{ self_exe_path, "run", "-lc", c_code_path });
}
const run_or_test = switch (arg_mode) {
.run => true,
.zig_test => !test_no_exec,