Extend the grep tests to assert that setting "grep.patternType=extended" followed by "grep.patternType=default" will behave as if "--basic-regexp" was provided, and not as "--extended-regexp". In a subsequent commit we'll need to treat "grep.patternType=default" as a special-case, but let's make sure we ignore it if it's being set to "default" following an earlier non-"default" "grep.patternType" setting. Let's also test what happens when we have a sequence of "extended" followed by "default" and "fixed". In that case the "fixed" should prevail, as well as tests to check that a "grep.extendedRegexp=true" followed by a "grep.extendedRegexp=false" behaves as though "grep.extendedRegexp" wasn't provided. See [1] for the source of some of these tests, and their initial (pseudocode) implementation, and [2] for a later discussion about a breakage due to missing testing (which had been noted in [1] all along). 1. https://lore.kernel.org/git/xmqqv8zf6j86.fsf@gitster.g/ 2. https://lore.kernel.org/git/xmqqpmoczwtu.fsf@gitster.g/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx> --- t/t7810-grep.sh | 96 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh index 424c31c3287..79884787da2 100755 --- a/t/t7810-grep.sh +++ b/t/t7810-grep.sh @@ -451,6 +451,93 @@ do test_cmp expected actual ' + test_expect_success "grep $L with grep.extendedRegexp is last-one-wins" ' + echo "${HC}ab:a+bc" >expected && + git \ + -c grep.extendedRegexp=true \ + -c grep.patternType=basic \ + -c grep.extendedRegexp=false \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp is last-one-wins & defers to grep.patternType" ' + echo "${HC}ab:abc" >expected && + git \ + -c grep.extendedRegexp=true \ + -c grep.patternType=extended \ + -c grep.extendedRegexp=false \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp and grep.patternType are both last-one-wins independently (ERE)" ' + echo "${HC}ab:abc" >expected && + git \ + -c grep.patternType=fixed \ + -c grep.extendedRegexp=true \ + -c grep.patternType=default \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp and grep.patternType are both last-one-wins independently (ERE)" ' + echo "${HC}ab:abc" >expected && + git \ + -c grep.extendedRegexp=false \ + -c grep.patternType=default \ + -c grep.extendedRegexp=true \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp and grep.patternType are both last-one-wins independently (BRE)" ' + echo "${HC}ab:a+bc" >expected && + git \ + -c grep.extendedRegexp=true \ + -c grep.extendedRegexp=false \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp and grep.patternType are both last-one-wins independently (BRE)" ' + echo "${HC}ab:abc" >expected && + git \ + -c grep.extendedRegexp=false \ + -c grep.extendedRegexp=true \ + -c grep.patternType=default \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.extendedRegexp and grep.patternType are both last-one-wins independently (BRE)" ' + echo "${HC}ab:a+bc" >expected && + git \ + -c grep.patternType=default \ + -c grep.extendedRegexp=true \ + -c grep.patternType=basic \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + test_expect_success "grep $L with grep.patternType=extended and grep.patternType=default" ' + echo "${HC}ab:a+bc" >expected && + git \ + -c grep.patternType=extended \ + -c grep.patternType=default \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L with grep.patternType=[extended -> default -> fixed]" ' + echo "${HC}ab:a+b*c" >expected && + git \ + -c grep.patternType=extended \ + -c grep.patternType=default \ + -c grep.patternType=fixed \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + test_expect_success "grep $L with grep.patternType=extended and grep.extendedRegexp=false" ' echo "${HC}ab:abc" >expected && git \ @@ -478,6 +565,15 @@ do test_cmp expected actual ' + test_expect_success "grep $L with grep.extendedRegexp=false and grep.patternType=default" ' + echo "${HC}ab:abc" >expected && + git \ + -c grep.extendedRegexp=false \ + -c grep.patternType=extended \ + grep "a+b*c" $H ab >actual && + test_cmp expected actual + ' + test_expect_success "grep $L with grep.extendedRegexp=true and grep.patternType=basic" ' echo "${HC}ab:a+bc" >expected && git \ -- 2.35.1.940.ge7a5b4b05f2
