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test: enable legacy support in version compatibility test
Summary:
The version compatibility test needs to decode legacy frames (v0.5.x - v0.7.x) to verify cross-version interoperability. Since legacy support is now disabled by default (v1.6.0), head must be built with ZSTD_LEGACY_SUPPORT=5 for this test.
Test Plan:
Run `python3 tests/test-zstd-versions.py` to verify cross-version compatibility testing works correctly.
authored by
Yann Collet
and committed by
Yann Collet
432476ab
97b20830
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vendor/git/zstd-c/tests/test-zstd-versions.py
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vendor/git/zstd-c/tests/test-zstd-versions.py
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shutil.copy2('dictBuilder', '{}/dictBuilder.{}'.format(tmp_dir, tag))
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os.chdir(r_dir + '/programs') # /path/to/zstd/tests/versionsTest/<TAG>/programs
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make(['clean'], False) # separate 'clean' target to allow parallel build
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make(['zstd'], False)
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# Enable legacy support for cross-version compatibility testing
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make(['zstd', 'ZSTD_LEGACY_SUPPORT=5'], False)
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else:
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os.chdir(programs_dir)
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print('-----------------------------------------------')
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print('compiling head')
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print('-----------------------------------------------')
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make(['zstd'], False)
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# Enable legacy support for head to test cross-version compatibility
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# (legacy support is disabled by default since v1.6.0)
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make(['zstd', 'ZSTD_LEGACY_SUPPORT=5'], False)
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shutil.copy2('zstd', dst_zstd)
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# remove any remaining *.zst and *.dec from previous test