+test_expect_success 'git config --edit works' '
+ git config -f tmp test.value no &&
+ echo test.value=yes >expect &&
+ GIT_EDITOR="echo [test]value=yes >" git config -f tmp --edit &&
+ git config -f tmp --list >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git config --edit respects core.editor' '
+ git config -f tmp test.value no &&
+ echo test.value=yes >expect &&
+ test_config core.editor "echo [test]value=yes >" &&
+ git config -f tmp --edit &&
+ git config -f tmp --list >actual &&
+ test_cmp expect actual
+'
+