t7500: use test_config to set/unset git config variables

Instead of using construct such as:
    test_when_finished "git config --unset <key>"
    git config <key> <value>
uses
    test_config <key> <value>
The latter takes care of removing <key> at the end of the test.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t7500-commit.sh b/t/t7500-commit.sh
index 1c908f4..436b7b6 100755 (executable)
--- a/t/t7500-commit.sh
+++ b/t/t7500-commit.sh
@@ -36,8 +36,7 @@ test_expect_success 'nonexistent template file should return error' '
 '
 
 test_expect_success 'nonexistent template file in config should return error' '
-       git config commit.template "$PWD"/notexist &&
-       test_when_finished "git config --unset commit.template" &&
+       test_config commit.template "$PWD"/notexist &&
        (
                GIT_EDITOR="echo hello >\"\$1\"" &&
                export GIT_EDITOR &&
@@ -93,14 +92,13 @@ test_expect_success '-t option should be short for --template' '
 
 test_expect_success 'config-specified template should commit' '
        echo "new template" > "$TEMPLATE" &&
-       git config commit.template "$TEMPLATE" &&
+       test_config commit.template "$TEMPLATE" &&
        echo "more content" >> foo &&
        git add foo &&
        (
                test_set_editor "$TEST_DIRECTORY"/t7500/add-content &&
                git commit
        ) &&
-       git config --unset commit.template &&
        commit_msg_is "new templatecommit message"
 '