[glib/wip/smcv/2452-g-string-0-length-replace: 4/5] test_string_replace: Exercise zero-length replacements

[Simon McVittie <smcv src gnome org>]

commit bf70d58d55d8a77de72c86e68aa0960d71b22eed
Author: Simon McVittie <smcv collabora com>
Date:   Mon Aug 2 11:52:58 2021 +0100

    test_string_replace: Exercise zero-length replacements
    
    Previously, these would have done 2**32 replacements, and the first one
    would have consumed 6GB of memory in the process. They now match what
    Python `str.replace()` does.
    
    Reproduces: https://gitlab.gnome.org/GNOME/glib/-/issues/2452
    Signed-off-by: Simon McVittie <smcv collabora com>

 glib/tests/string.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/glib/tests/string.c b/glib/tests/string.c
index 333e0254e..24098d1be 100644
--- a/glib/tests/string.c
+++ b/glib/tests/string.c
@@ -528,6 +528,12 @@ test_string_replace (void)
       "", 3 },
     { "aaa", "aa", "bb", 0,
       "bba", 1 },
+    { "foo", "", "bar", 0,
+      "barfbarobarobar", 4 },
+    { "", "", "x", 0,
+      "x", 1 },
+    { "", "", "", 0,
+      "", 1 },
   };
   gsize i;