[PATCH v2 2/2] test: Add a test for strim()

[Simon Glass]

This function trims whitespace from the start and end of a string. Add a
test for it.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v2:
- Bring in strim() update from Linux and adjust tests

 test/lib/string.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/test/lib/string.c b/test/lib/string.c
index 8d22f3fd68f..d039f209a8c 100644
--- a/test/lib/string.c
+++ b/test/lib/string.c
@@ -221,3 +221,40 @@ static int lib_memdup(struct unit_test_state *uts)
 	return 0;
 }
 LIB_TEST(lib_memdup, 0);
+
+static int lib_strim(struct unit_test_state *uts)
+{
+	char buf[BUFLEN], *p;
+
+	strcpy(buf, "abc");
+	ut_asserteq_str("abc", strim(buf));
+
+	/* leading space */
+	strcpy(buf, " abc");
+	ut_asserteq_str("abc", strim(buf));
+
+	/* multiple leading spaces */
+	strcpy(buf, "  abc");
+	ut_asserteq_str("abc", strim(buf));
+
+	/* multiple internal spaces */
+	strcpy(buf, "  a   bc");
+	ut_asserteq_str("a   bc", strim(buf));
+
+	/* with trailing space */
+	strcpy(buf, "  a   bc ");
+	ut_asserteq_str("a   bc", strim(buf));
+
+	/* with multiple trailing spaces */
+	strcpy(buf, "  a   bc   ");
+	ut_asserteq_str("a   bc", strim(buf));
+
+	/* with only spaces */
+	strcpy(buf, "     ");
+	p = strim(buf);
+	ut_asserteq_ptr(p, buf);
+	ut_asserteq_str("", p);
+
+	return 0;
+}
+LIB_TEST(lib_strim, 0);
-- 
2.43.0

base-commit: b5d6220dd2f4612912989f3c2b5a710f2248cb36
branch: schn2