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Adds --bless support to test/run-make-fulldeps

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The ability to "bless" output for some of these tests is critical to
making it practical to adapt tests to unrelated changes.

This is needed for new coverage tests, as shown in PR #75828 (or its
derivative).
This commit is contained in:
Rich Kadel 2020-08-27 12:27:18 -07:00
parent bf4342114e
commit 55cd2433dc
1 changed files with 12 additions and 0 deletions
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12
src/tools/compiletest/src/runtest.rs
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@ -2782,6 +2782,18 @@ impl<'test> TestCx<'test> {
cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
}
if self.config.bless {
cmd.env("RUSTC_BLESS_TEST", "--bless");
// Assume this option is active if the environment variable is "defined", with _any_ value.
// As an example, a `Makefile` can use this option by:
//
// ifdef RUSTC_BLESS_TEST
// cp "$(TMPDIR)"/actual_something.ext expected_something.ext
// else
// $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
// endif
}
if self.config.target.contains("msvc") && self.config.cc != "" {
// We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
// and that `lib.exe` lives next to it.