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- #!/bin/bash
- [ -f testing.sh ] && . testing.sh
- #testing "name" "command" "result" "infile" "stdin"
- # Compress files.
- # On success, the input files are removed and replaced by new
- # files with the .gz suffix.
- echo -n "foo " > f1
- echo "bar" > f2
- testing "with input files" "gzip f1 f2 &&
- test -f f1.gz && test -f f2.gz &&
- ! test -f f1 && ! test -f f2 &&
- zcat f1.gz f2.gz" "foo bar\n" "" ""
- rm -f f1 f2 f1.gz f2.gz
- # With no files, compresses stdin to stdout.
- testing "no files (stdin to stdout)" "echo hello world | gzip > f.gz &&
- test -f f.gz && zcat f.gz" "hello world\n" "" ""
- rm -f f.gz
- # -c Output to stdout
- echo -n "foo " > f1
- echo "bar" > f2
- testing "with input files and -c" "gzip -c f1 f2 > out.gz &&
- ! test -f f1.gz && ! test -f f2.gz &&
- test -f f1 && test -f f2 &&
- zcat out.gz" "foo bar\n" "" ""
- rm -f f1 f2 out.gz
- # -d Decompress (act as gunzip)
- echo "hello world" | gzip > f.gz
- testing "-d (act as gunzip)" "gzip -d f.gz &&
- test -f f && ! test -f f.gz && cat f" "hello world\n" "" ""
- rm -f f.gz f
- echo "hello world" | gzip > f.gz
- testing "-dc (act as zcat)" "gzip -dc f.gz &&
- ! test -f f && test -f f.gz" "hello world\n" "" ""
- rm -f f.gz f
- # -f Force: allow overwrite of output file
- echo "hello world" > f1
- echo "precious data" > f1.gz
- testing "no overwrite without -f" \
- "gzip f1 2>/dev/null || echo refused && cat f1 f1.gz" \
- "refused\nhello world\nprecious data\n" "" ""
- testing "overwrite with -f" \
- "gzip -f f1 && echo allowed && ! test -f f1 && zcat f1.gz" \
- "allowed\nhello world\n" "" ""
- rm -f f1 f1.gz
- # -k Keep input files (don't remove)
- echo "hello world" > f1
- testing "-k" "gzip -k f1 && cat f1 && zcat f1.gz" \
- "hello world\nhello world\n" "" ""
- rm -f f1 f1.gz
- # Test that -9 compresses better than -1.
- for i in $(seq 1 1000) ; do echo "hello world" >> x ; done
- gzip -c1 x > x1.gz
- gzip -c9 x > x9.gz
- testing "-1 vs -9" \
- "test $(stat -c '%s' x1.gz) -gt $(stat -c '%s' x9.gz) && echo okay" \
- "okay\n" "" ""
- rm -f x x1.gz x9.gz
- # Test that gzip preserves permissions and times.
- export TZ=UTC
- echo "hello world" > f1
- chmod 0411 f1
- touch -a -t 197801020304 f1
- touch -m -t 198704030201 f1
- testing "permissions/times preservation" \
- "gzip -k f1 && TZ=UTC stat -c '%a %Y' f1 && stat -c '%a %X %Y' f1.gz" \
- "411 544413660\n411 252558240 544413660\n" "" ""
- rm -f f1 f1.gz
- testing "reject non-gzip" "gzip -dc $FILES/blkid/msdos.bz2 2>/dev/null ||
- echo rejected" "rejected\n" "" ""
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