Tests for module 'setlocale'.

[gnulib.git] / tests / test-memmem.c

diff --git a/tests/test-memmem.c b/tests/test-memmem.c
index 3a21213..cffb56b 100644 (file)
--- a/tests/test-memmem.c
+++ b/tests/test-memmem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004, 2007-2010 Free Software Foundation, Inc.
+ * Copyright (C) 2004, 2007-2011 Free Software Foundation, Inc.
  * Written by Bruno Haible and Eric Blake
  *
  * This program is free software: you can redistribute it and/or modify
@@ -89,6 +89,25 @@ main (int argc, char *argv[])
     ASSERT (result == input);
   }
 
+  /* Check that a long periodic needle does not cause false positives.  */
+  {
+    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                          "_C3_A7_20_EF_BF_BD");
+    const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
+    const char *result = memmem (input, strlen (input), need, strlen (need));
+    ASSERT (result == NULL);
+  }
+  {
+    const char input[] = ("F_BD_CE_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                          "_C3_88_20_EF_BF_BD_EF_BF_BD_EF_BF_BD"
+                          "_C3_A7_20_EF_BF_BD_DA_B5_C2_A6_20"
+                          "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD");
+    const char need[] = "_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD_EF_BF_BD";
+    const char *result = memmem (input, strlen (input), need, strlen (need));
+    ASSERT (result == input + 115);
+  }
+
   /* Check that a very long haystack is handled quickly if the needle is
      short and occurs near the beginning.  */
   {