[glib] gstrfuncs: Add test for g_strjoinv() behaviour

[Bastien Nocera <hadess src gnome org>]

commit 21ad4c800c8624bdb750da5afbda6cca44e64bbe
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Mar 23 21:35:13 2016 +0100

    gstrfuncs: Add test for g_strjoinv() behaviour
    
    https://bugzilla.gnome.org/show_bug.cgi?id=764092

 glib/tests/strfuncs.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/glib/tests/strfuncs.c b/glib/tests/strfuncs.c
index cbf5be7..0d0f351 100644
--- a/glib/tests/strfuncs.c
+++ b/glib/tests/strfuncs.c
@@ -1114,6 +1114,8 @@ test_bounds (void)
   char *tmp, *tmp2;
   char **array;
   char *string;
+  const char * const strjoinv_0[] = { NULL };
+  const char * const strjoinv_1[] = { "foo", NULL };
 
   /* if we allocate the file between two others and then free those
    * other two, then hopefully we end up with unmapped memory on either
@@ -1265,6 +1267,14 @@ test_bounds (void)
   g_assert_cmpmem (tmp, strlen (tmp), string, 4095);
   g_free (tmp);
 
+  tmp = g_strjoinv ("/", (char **) strjoinv_0);
+  g_assert_cmpstr (tmp, ==, "");
+  g_free (tmp);
+
+  tmp = g_strjoinv ("/", (char **) strjoinv_1);
+  g_assert_cmpstr (tmp, ==, "foo");
+  g_free (tmp);
+
   tmp = g_strconcat (string, string, string, NULL);
   g_assert_cmpint (strlen (tmp), ==, 4095 * 3);
   g_free (tmp);