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1c5e94f459
Using 'test_must_be_empty' is shorter and more idiomatic than
>empty &&
test_cmp empty out
as it saves the creation of an empty file. Furthermore, sometimes the
expected empty file doesn't have such a descriptive name like 'empty',
and its creation is far away from the place where it's finally used
for comparison (e.g. in 't7600-merge.sh', where two expected empty
files are created in the 'setup' test, but are used only about 500
lines later).
These cases were found by instrumenting 'test_cmp' to error out the
test script when it's used to compare empty files, and then converted
manually.
Note that even after this patch there still remain a lot of cases
where we use 'test_cmp' to check empty files:
- Sometimes the expected output is not hard-coded in the test, but
'test_cmp' is used to ensure that two similar git commands produce
the same output, and that output happens to be empty, e.g. the
test 'submodule update --merge - ignores --merge for new
submodules' in 't7406-submodule-update.sh'.
- Repetitive common tasks, including preparing the expected results
and running 'test_cmp', are often extracted into a helper
function, and some of this helper's callsites expect no output.
- For the same reason as above, the whole 'test_expect_success'
block is within a helper function, e.g. in 't3070-wildmatch.sh'.
- Or 'test_cmp' is invoked in a loop, e.g. the test 'cvs update
(-p)' in 't9400-git-cvsserver-server.sh'.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
249 lines
6.1 KiB
Bash
Executable file
249 lines
6.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='git grep in binary files'
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. ./test-lib.sh
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nul_match () {
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matches=$1
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flags=$2
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pattern=$3
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pattern_human=$(echo "$pattern" | sed 's/Q/<NUL>/g')
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if test "$matches" = 1
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then
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test_expect_success "git grep -f f $flags '$pattern_human' a" "
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printf '$pattern' | q_to_nul >f &&
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git grep -f f $flags a
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"
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elif test "$matches" = 0
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then
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test_expect_success "git grep -f f $flags '$pattern_human' a" "
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printf '$pattern' | q_to_nul >f &&
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test_must_fail git grep -f f $flags a
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"
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elif test "$matches" = T1
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then
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test_expect_failure "git grep -f f $flags '$pattern_human' a" "
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printf '$pattern' | q_to_nul >f &&
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git grep -f f $flags a
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"
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elif test "$matches" = T0
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then
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test_expect_failure "git grep -f f $flags '$pattern_human' a" "
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printf '$pattern' | q_to_nul >f &&
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test_must_fail git grep -f f $flags a
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"
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else
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test_expect_success "PANIC: Test framework error. Unknown matches value $matches" 'false'
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fi
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}
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test_expect_success 'setup' "
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echo 'binaryQfileQm[*]cQ*æQð' | q_to_nul >a &&
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git add a &&
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git commit -m.
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"
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test_expect_success 'git grep ina a' '
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echo Binary file a matches >expect &&
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git grep ina a >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git grep -ah ina a' '
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git grep -ah ina a >actual &&
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test_cmp a actual
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'
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test_expect_success 'git grep -I ina a' '
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test_must_fail git grep -I ina a >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'git grep -c ina a' '
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echo a:1 >expect &&
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git grep -c ina a >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git grep -l ina a' '
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echo a >expect &&
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git grep -l ina a >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git grep -L bar a' '
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echo a >expect &&
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git grep -L bar a >actual &&
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test_cmp expect actual
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'
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test_expect_success 'git grep -q ina a' '
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git grep -q ina a >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'git grep -F ile a' '
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git grep -F ile a
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'
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test_expect_success 'git grep -Fi iLE a' '
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git grep -Fi iLE a
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'
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# This test actually passes on platforms where regexec() supports the
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# flag REG_STARTEND.
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test_expect_success 'git grep ile a' '
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git grep ile a
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'
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test_expect_failure 'git grep .fi a' '
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git grep .fi a
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'
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nul_match 1 '-F' 'yQf'
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nul_match 0 '-F' 'yQx'
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nul_match 1 '-Fi' 'YQf'
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nul_match 0 '-Fi' 'YQx'
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nul_match 1 '' 'yQf'
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nul_match 0 '' 'yQx'
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nul_match 1 '' 'æQð'
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nul_match 1 '-F' 'eQm[*]c'
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nul_match 1 '-Fi' 'EQM[*]C'
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# Regex patterns that would match but shouldn't with -F
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nul_match 0 '-F' 'yQ[f]'
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nul_match 0 '-F' '[y]Qf'
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nul_match 0 '-Fi' 'YQ[F]'
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nul_match 0 '-Fi' '[Y]QF'
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nul_match 0 '-F' 'æQ[ð]'
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nul_match 0 '-F' '[æ]Qð'
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nul_match 0 '-Fi' 'ÆQ[Ð]'
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nul_match 0 '-Fi' '[Æ]QÐ'
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# kwset is disabled on -i & non-ASCII. No way to match non-ASCII \0
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# patterns case-insensitively.
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nul_match T1 '-i' 'ÆQÐ'
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# \0 implicitly disables regexes. This is an undocumented internal
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# limitation.
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nul_match T1 '' 'yQ[f]'
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nul_match T1 '' '[y]Qf'
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nul_match T1 '-i' 'YQ[F]'
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nul_match T1 '-i' '[Y]Qf'
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nul_match T1 '' 'æQ[ð]'
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nul_match T1 '' '[æ]Qð'
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nul_match T1 '-i' 'ÆQ[Ð]'
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# ... because of \0 implicitly disabling regexes regexes that
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# should/shouldn't match don't do the right thing.
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nul_match T1 '' 'eQm.*cQ'
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nul_match T1 '-i' 'EQM.*cQ'
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nul_match T0 '' 'eQm[*]c'
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nul_match T0 '-i' 'EQM[*]C'
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# Due to the REG_STARTEND extension when kwset() is disabled on -i &
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# non-ASCII the string will be matched in its entirety, but the
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# pattern will be cut off at the first \0.
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nul_match 0 '-i' 'NOMATCHQð'
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nul_match T0 '-i' '[Æ]QNOMATCH'
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nul_match T0 '-i' '[æ]QNOMATCH'
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# Matches, but for the wrong reasons, just stops at [æ]
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nul_match 1 '-i' '[Æ]Qð'
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nul_match 1 '-i' '[æ]Qð'
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# Ensure that the matcher doesn't regress to something that stops at
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# \0
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nul_match 0 '-F' 'yQ[f]'
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nul_match 0 '-Fi' 'YQ[F]'
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nul_match 0 '' 'yQNOMATCH'
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nul_match 0 '' 'QNOMATCH'
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nul_match 0 '-i' 'YQNOMATCH'
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nul_match 0 '-i' 'QNOMATCH'
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nul_match 0 '-F' 'æQ[ð]'
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nul_match 0 '-Fi' 'ÆQ[Ð]'
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nul_match 0 '' 'yQNÓMATCH'
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nul_match 0 '' 'QNÓMATCH'
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nul_match 0 '-i' 'YQNÓMATCH'
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nul_match 0 '-i' 'QNÓMATCH'
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test_expect_success 'grep respects binary diff attribute' '
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echo text >t &&
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git add t &&
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echo t:text >expect &&
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git grep text t >actual &&
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test_cmp expect actual &&
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echo "t -diff" >.gitattributes &&
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echo "Binary file t matches" >expect &&
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git grep text t >actual &&
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test_cmp expect actual
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'
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test_expect_success 'grep --cached respects binary diff attribute' '
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git grep --cached text t >actual &&
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test_cmp expect actual
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'
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test_expect_success 'grep --cached respects binary diff attribute (2)' '
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git add .gitattributes &&
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rm .gitattributes &&
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git grep --cached text t >actual &&
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test_when_finished "git rm --cached .gitattributes" &&
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test_when_finished "git checkout .gitattributes" &&
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test_cmp expect actual
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'
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test_expect_success 'grep revision respects binary diff attribute' '
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git commit -m new &&
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echo "Binary file HEAD:t matches" >expect &&
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git grep text HEAD -- t >actual &&
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test_when_finished "git reset HEAD^" &&
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test_cmp expect actual
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'
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test_expect_success 'grep respects not-binary diff attribute' '
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echo binQary | q_to_nul >b &&
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git add b &&
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echo "Binary file b matches" >expect &&
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git grep bin b >actual &&
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test_cmp expect actual &&
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echo "b diff" >.gitattributes &&
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echo "b:binQary" >expect &&
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git grep bin b >actual.raw &&
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nul_to_q <actual.raw >actual &&
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test_cmp expect actual
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'
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cat >nul_to_q_textconv <<'EOF'
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#!/bin/sh
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"$PERL_PATH" -pe 'y/\000/Q/' < "$1"
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EOF
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chmod +x nul_to_q_textconv
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test_expect_success 'setup textconv filters' '
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echo a diff=foo >.gitattributes &&
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git config diff.foo.textconv "\"$(pwd)\""/nul_to_q_textconv
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'
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test_expect_success 'grep does not honor textconv' '
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test_must_fail git grep Qfile
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'
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test_expect_success 'grep --textconv honors textconv' '
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echo "a:binaryQfileQm[*]cQ*æQð" >expect &&
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git grep --textconv Qfile >actual &&
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test_cmp expect actual
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'
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test_expect_success 'grep --no-textconv does not honor textconv' '
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test_must_fail git grep --no-textconv Qfile
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'
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test_expect_success 'grep --textconv blob honors textconv' '
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echo "HEAD:a:binaryQfileQm[*]cQ*æQð" >expect &&
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git grep --textconv Qfile HEAD:a >actual &&
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test_cmp expect actual
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'
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test_done
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