[glib] Add tests for new g_environ_ functions

[Matthias Clasen <matthiasc src gnome org>]

commit 94c246e8e3816d05971e9a825cf15769b04e8098
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Oct 15 16:28:07 2011 -0400

    Add tests for new g_environ_ functions

 glib/tests/environment.c |   62 ++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 60 insertions(+), 2 deletions(-)
---
diff --git a/glib/tests/environment.c b/glib/tests/environment.c
index 7b313d1..1e4698c 100644
--- a/glib/tests/environment.c
+++ b/glib/tests/environment.c
@@ -1,7 +1,7 @@
 #include <glib.h>
 
 static void
-test_environment (void)
+test_listenv (void)
 {
   GHashTable *table;
   gchar **list;
@@ -40,12 +40,70 @@ test_environment (void)
   g_strfreev (list);
 }
 
+static void
+test_setenv (void)
+{
+  const gchar *var, *value;
+
+  var = "NOSUCHENVVAR";
+  value = "value1";
+
+  g_assert (g_getenv (var) == NULL);
+  g_setenv (var, value, FALSE);
+  g_assert_cmpstr (g_getenv (var), ==, value);
+  g_assert (g_setenv (var, "value2", FALSE));
+  g_assert_cmpstr (g_getenv (var), ==, value);
+  g_assert (g_setenv (var, "value2", TRUE));
+  g_assert_cmpstr (g_getenv (var), ==, "value2");
+  g_unsetenv (var);
+  g_assert (g_getenv (var) == NULL);
+}
+
+static void
+test_environ_array (void)
+{
+  gchar **env;
+  const gchar *value;
+
+  env = g_new (gchar *, 1);
+  env[0] = NULL;
+
+  value = g_environ_getenv (env, "foo");
+  g_assert (value == NULL);
+
+  env = g_environ_setenv (env, "foo", "bar", TRUE);
+  value = g_environ_getenv (env, "foo");
+  g_assert_cmpstr (value, ==, "bar");
+
+  env = g_environ_setenv (env, "foo2", "bar2", FALSE);
+  value = g_environ_getenv (env, "foo");
+  g_assert_cmpstr (value, ==, "bar");
+  value = g_environ_getenv (env, "foo2");
+  g_assert_cmpstr (value, ==, "bar2");
+
+  env = g_environ_setenv (env, "foo", "x", FALSE);
+  value = g_environ_getenv (env, "foo");
+  g_assert_cmpstr (value, ==, "bar");
+
+  env = g_environ_setenv (env, "foo", "x", TRUE);
+  value = g_environ_getenv (env, "foo");
+  g_assert_cmpstr (value, ==, "x");
+
+  env = g_environ_unsetenv (env, "foo2");
+  value = g_environ_getenv (env, "foo2");
+  g_assert (value == NULL);
+
+  g_strfreev (env);
+}
+
 int
 main (int argc, char **argv)
 {
   g_test_init (&argc, &argv, NULL);
 
-  g_test_add_func ("/glib/environment", test_environment);
+  g_test_add_func ("/environ/listenv", test_listenv);
+  g_test_add_func ("/environ/setenv", test_setenv);
+  g_test_add_func ("/environ/array", test_environ_array);
 
   return g_test_run ();
 }