[PATCH v4 6/6] add tests for `git_config_get_string_const()`

[Tanay Abhra <tanayabh@xxxxxxxxx>]

Add tests for `git_config_get_string_const()`, check whether it
dies printing the line number and the file name if a NULL
value is retrieved for the given key.

Signed-off-by: Tanay Abhra <tanayabh@xxxxxxxxx>
---
 t/t1308-config-set.sh | 10 ++++++++++
 test-config.c         | 10 ++++++++++
 2 files changed, 20 insertions(+)

diff --git a/t/t1308-config-set.sh b/t/t1308-config-set.sh
index e2f9d0b..f012dd6 100755
--- a/t/t1308-config-set.sh
+++ b/t/t1308-config-set.sh
@@ -119,6 +119,16 @@ test_expect_success 'find integer value for a key' '
 	check_config get_int lamb.chop 65
 '
 
+test_expect_success 'find string value for a key' '
+	check_config get_string case.baz hask &&
+	check_config expect_code 1 get_string case.ba "Value not found for \"case.ba\""
+'
+
+test_expect_success 'check line error when NULL string is queried' '
+	test_expect_code 128 test-config get_string case.foo 2>result &&
+	grep "fatal: bad config variable '\''case.foo'\'' at file line 7 in .git/config" result
+'
+
 test_expect_success 'find integer if value is non parse-able' '
 	check_config expect_code 128 get_int lamb.head
 '
diff --git a/test-config.c b/test-config.c
index 9dd1b22..6a77552 100644
--- a/test-config.c
+++ b/test-config.c
@@ -16,6 +16,8 @@
  *
  * get_bool -> print bool value for the entered key or die
  *
+ * get_string -> print string value for the entered key or die
+ *
  * configset_get_value -> returns value with the highest priority for the entered key
  * 			from a config_set constructed from files entered as arguments.
  *
@@ -84,6 +86,14 @@ int main(int argc, char **argv)
 			printf("Value not found for \"%s\"\n", argv[2]);
 			goto exit1;
 		}
+	} else if (argc == 3 && !strcmp(argv[1], "get_string")) {
+		if (!git_config_get_string_const(argv[2], &v)) {
+			printf("%s\n", v);
+			goto exit0;
+		} else {
+			printf("Value not found for \"%s\"\n", argv[2]);
+			goto exit1;
+		}
 	} else if (!strcmp(argv[1], "configset_get_value")) {
 		for (i = 3; i < argc; i++) {
 			int err;
-- 
1.9.0.GIT

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