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c79fb4d78d
comparing level 19 to level 22 and expecting a stricter better result from level 22 is not that guaranteed, because level 19 and 22 are very close to each other, especially for small files, so any noise in the final compression result result in failing this test. Level 22 could be compared to something much lower, like level 15, But level 19 is required anyway, because there is a clamping test which depends on it. Removed level 22, kept level 19
70 lines
3.1 KiB
Plaintext
70 lines
3.1 KiB
Plaintext
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datagen > file
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# Compress with various levels and ensure that their sizes are ordered
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zstd --fast=10 file -o file-f10.zst
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zstd --fast=1 file -o file-f1.zst
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zstd -1 file -o file-1.zst
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zstd -19 file -o file-19.zst
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zstd -t file-f10.zst file-f1.zst file-1.zst file-19.zst
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cmp_size -lt file-19.zst file-1.zst
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cmp_size -lt file-1.zst file-f1.zst
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cmp_size -lt file-f1.zst file-f10.zst
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# Test default levels
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zstd --fast file -f
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cmp file.zst file-f1.zst || die "--fast is not level -1"
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zstd -0 file -o file-0.zst
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zstd -f file
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cmp file.zst file-0.zst || die "Level 0 is not the default level"
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# Test level clamping
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zstd -99 file -o file-99.zst
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Warning : compression level higher than max, reduced to 19
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cmp file-19.zst file-99.zst || die "Level 99 is clamped to 19"
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zstd --fast=200000 file -c | zstd -t
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zstd -5000000000 -f file && die "Level too large, must fail" ||:
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error: numeric value overflows 32-bit unsigned int
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zstd --fast=5000000000 -f file && die "Level too large, must fail" ||:
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error: numeric value overflows 32-bit unsigned int
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# Test setting a level through the environment variable
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ZSTD_CLEVEL=-10 zstd file -o file-f10-env.zst
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ZSTD_CLEVEL=1 zstd file -o file-1-env.zst
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ZSTD_CLEVEL=+19 zstd file -o file-19-env.zst
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ZSTD_CLEVEL=+99 zstd file -o file-99-env.zst
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Warning : compression level higher than max, reduced to 19
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cmp file-f10.zst file-f10-env.zst || die "Environment variable failed to set level"
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cmp file-1.zst file-1-env.zst || die "Environment variable failed to set level"
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cmp file-19.zst file-19-env.zst || die "Environment variable failed to set level"
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cmp file-99.zst file-99-env.zst || die "Environment variable failed to set level"
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# Test invalid environment clevel is the default level
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zstd -f file
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ZSTD_CLEVEL=- zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=-: not a valid integer value
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ZSTD_CLEVEL=+ zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=+: not a valid integer value
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ZSTD_CLEVEL=a zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=a: not a valid integer value
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ZSTD_CLEVEL=-a zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=-a: not a valid integer value
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ZSTD_CLEVEL=+a zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=+a: not a valid integer value
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ZSTD_CLEVEL=3a7 zstd -f file -o file-env.zst ; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=3a7: not a valid integer value
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ZSTD_CLEVEL=5000000000 zstd -f file -o file-env.zst; cmp file.zst file-env.zst
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Ignore environment variable setting ZSTD_CLEVEL=5000000000: numeric value too large
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# Test environment clevel is overridden by command line
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ZSTD_CLEVEL=10 zstd -f file -1 -o file-1-env.zst
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ZSTD_CLEVEL=10 zstd -f file --fast=1 -o file-f1-env.zst
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cmp file-1.zst file-1-env.zst || die "Environment variable not overridden"
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cmp file-f1.zst file-f1-env.zst || die "Environment variable not overridden"
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