[PATCH/RFC 5/5] add tests for checking the behaviour of "unset.variable"

[Tanay Abhra <tanayabh@gmail.com>]

Helped-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Tanay Abhra <tanayabh@gmail.com>
---
 t/t1300-repo-config.sh | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index ce5ea01..f75c001 100755
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -1179,4 +1179,58 @@ test_expect_success POSIXPERM,PERL 'preserves existing permissions' '
 	  "die q(badrename) if ((stat(q(.git/config)))[2] & 07777) != 0600"
 '
 
+test_expect_success 'unset.variable unsets all previous matching keys' '
+	cat >.git/config <<-\EOF &&
+	[alias]
+		checkconfig = -c foo.check=baz config foo.check
+		checkconfig = -c foo.check=bar config foo.check
+	[unset]
+		variable = alias.checkconfig
+	EOF
+
+	test_expect_code 1 git checkconfig
+'
+
+test_expect_success 'unset.variable does not touch all matching keys after it' '
+	cat >.git/config <<-\EOF &&
+	[alias]
+		checkconfig = -c foo.check=foo config foo.check
+	[unset]
+		variable = alias.checkconfig
+	[alias]
+		checkconfig = -c foo.check=baz config foo.check
+		checkconfig = -c foo.check=bar config foo.check
+	EOF
+
+	cat >expect <<-\EOF &&
+	bar
+	EOF
+
+	test_expect_code 0 git checkconfig >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'document how unset.variable will behave in shell scripts' '
+	rm -f .git/config &&
+	cat >expect <<-\EOF &&
+	EOF
+	git config foo.bar boz1 &&
+	git config --add foo.bar boz2 &&
+	git config unset.variable foo.bar &&
+	git config --add foo.bar boz3 &&
+	test_must_fail git config --get-all foo.bar >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'unset.variable declared after in shell scripts' '
+	rm -f .git/config &&
+	cat >expect <<-\EOF &&
+	EOF
+	git config foo.bar boz1 &&
+	git config --add foo.bar boz2 &&
+	git config unset.variable foo.bar &&
+	test_must_fail git config --get-all foo.bar >actual &&
+	test_cmp expect actual
+'
+
 test_done
-- 
1.9.0.GIT