1 files changed, 51 insertions, 0 deletions
diff --git a/string/tester.c b/string/tester.c
index 39ae0d837e..eb630a1ff3 100644
--- a/string/tester.c
+++ b/string/tester.c
@@ -1302,6 +1302,52 @@ test_strerror (void)
   check(strerror(ENOENT) != 0, 3);
 }
 
+static void
+test_strcasecmp (void)
+{
+  it = "strcasecmp";
+  /* Note that the locale is "C".  */
+  check(strcasecmp("a", "a") == 0, 1);
+  check(strcasecmp("a", "A") == 0, 2);
+  check(strcasecmp("A", "a") == 0, 3);
+  check(strcasecmp("a", "b") < 0, 4);
+  check(strcasecmp("c", "b") > 0, 5);
+  check(strcasecmp("abc", "AbC") == 0, 6);
+  check(strcasecmp("0123456789", "0123456789") == 0, 7);
+  check(strcasecmp("", "0123456789") < 0, 8);
+  check(strcasecmp("AbC", "") > 0, 9);
+  check(strcasecmp("AbC", "A") > 0, 10);
+  check(strcasecmp("AbC", "Ab") > 0, 11);
+  check(strcasecmp("AbC", "ab") > 0, 12);
+}
+
+static void
+test_strncasecmp (void)
+{
+  it = "strncasecmp";
+  /* Note that the locale is "C".  */
+  check(strncasecmp("a", "a", 5) == 0, 1);
+  check(strncasecmp("a", "A", 5) == 0, 2);
+  check(strncasecmp("A", "a", 5) == 0, 3);
+  check(strncasecmp("a", "b", 5) < 0, 4);
+  check(strncasecmp("c", "b", 5) > 0, 5);
+  check(strncasecmp("abc", "AbC", 5) == 0, 6);
+  check(strncasecmp("0123456789", "0123456789", 10) == 0, 7);
+  check(strncasecmp("", "0123456789", 10) < 0, 8);
+  check(strncasecmp("AbC", "", 5) > 0, 9);
+  check(strncasecmp("AbC", "A", 5) > 0, 10);
+  check(strncasecmp("AbC", "Ab", 5) > 0, 11);
+  check(strncasecmp("AbC", "ab", 5) > 0, 12);
+  check(strncasecmp("0123456789", "AbC", 0) == 0, 13);
+  check(strncasecmp("AbC", "abc", 1) == 0, 14);
+  check(strncasecmp("AbC", "abc", 2) == 0, 15);
+  check(strncasecmp("AbC", "abc", 3) == 0, 16);
+  check(strncasecmp("AbC", "abcd", 3) == 0, 17);
+  check(strncasecmp("AbC", "abcd", 4) < 0, 18);
+  check(strncasecmp("ADC", "abcd", 1) == 0, 19);
+  check(strncasecmp("ADC", "abcd", 2) > 0, 20);
+}
+
 int
 main (void)
 {
@@ -1412,6 +1458,11 @@ main (void)
   /* strerror - VERY system-dependent.  */
   test_strerror ();
 
+  /* strcasecmp.  Without locale dependencies.  */
+  test_strcasecmp ();
+
+  /* strncasecmp.  Without locale dependencies.  */
+  test_strncasecmp ();
 
   if (errors == 0)
     {