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This adds a lit plugin wrapping the core of update-verify-tests. When lit is invoked with --update-tests it will call the plugin, which checks if the failure is due to a -verify mismatch. If it is, it tries to repair the test. If the source file was originally created by split-file, the changes are propagated to the parent file. No tests are added, because I don't want to run nested llvm-lit tests in Swift's test suite, but the core functionality is tested through update-verify-tests.py.
47 lines
1.9 KiB
Python
47 lines
1.9 KiB
Python
import sys
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import argparse
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from update_verify_tests.core import check_expectations
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"""
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Pipe output from swift-frontend's -verify into this script to have the test case updated to expect the actual diagnostic output.
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When inserting new expected-* checks it will place them on the line before the location of the diagnostic, with an @+1,
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or @+N for some N if there are multiple diagnostics emitted on the same line. If the current checks are using @-N for
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this line, the new check will follow that convention also.
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Existing checks will be left untouched as much as possible, including their location and whitespace content, to minimize
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diffs. If inaccurate their count will be updated, or the check removed entirely.
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Missing features:
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- multiple prefixes on the same line (-verify-additional-prefix my-prefix -verify-additional-prefix my-other-prefix)
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- multiple prefixes on separate RUN lines (RUN: -verify-additional-prefix my-prefix\nRUN: -verify-additional-prefix my-other-prefix)
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- regexes matchers
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- multiple checks targeting the same line are supported, but a line may only contain one check
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- if multiple checks targeting the same line are failing the script is not guaranteed to produce a minimal diff
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- remarks
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- expansions
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- columns
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- fix-its
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- doc files
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Example usage:
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swift-frontend -verify [file] | python3 update-verify-tests.py
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swift-frontend -verify -verify-additional-prefix check- [file] | python3 update-verify-tests.py --prefix check-
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"""
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--prefix", default="", help="The prefix passed to -verify")
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args = parser.parse_args()
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(err, updated_files) = check_expectations(sys.stdin.readlines(), args.prefix)
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if err:
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print(err)
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sys.exit(1)
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if len(updated_files) > 1:
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print("\n\t".join(["updated files:"] + updated_files))
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print(f"updated file: {updated_files[0]}")
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if __name__ == "__main__":
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main()
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