[dconf/wip/reorg: 497/523] tests/: add a testcase for DConfChangeset

[Ryan Lortie <ryanl src gnome org>]

commit 2e5a3580c826928bcd73493c0dfb6275376eeb2c
Author: Ryan Lortie <desrt desrt ca>
Date:   Fri Jul 6 14:10:27 2012 -0400

    tests/: add a testcase for DConfChangeset

 tests/.gitignore  |    1 +
 tests/Makefile.am |    4 +
 tests/changeset.c |  290 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 295 insertions(+), 0 deletions(-)
---
diff --git a/tests/.gitignore b/tests/.gitignore
index a1afa6d..0c37e4c 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -1,5 +1,6 @@
 libdconf-dbus-stub.a
 
+changeset
 client
 dbus1
 engine
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 890bd90..7201319 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -13,6 +13,10 @@ TEST_PROGS += paths
 paths_LDADD = ../common/libdconf-common.a $(gio_LIBS)
 paths_SOURCES = paths.c
 
+TEST_PROGS += changeset
+changeset_LDADD = ../common/libdconf-common.a $(glib_LIBS)
+changeset_SOURCES = changeset.c
+
 engine_LIBS = \
 	../engine/libdconf-engine.a	\
 	../common/libdconf-common.a
diff --git a/tests/changeset.c b/tests/changeset.c
new file mode 100644
index 0000000..687feff
--- /dev/null
+++ b/tests/changeset.c
@@ -0,0 +1,290 @@
+#include <dconf-changeset.h>
+
+static gboolean
+should_not_run (const gchar *key,
+                GVariant    *value,
+                gpointer     user_data)
+{
+  g_assert_not_reached ();
+}
+
+static gboolean
+is_null (const gchar *key,
+         GVariant    *value,
+         gpointer     user_data)
+{
+  return value == NULL;
+}
+
+static gboolean
+is_not_null (const gchar *key,
+             GVariant    *value,
+             gpointer     user_data)
+{
+  return value != NULL;
+}
+
+static void
+test_basic (void)
+{
+  DConfChangeset *changeset;
+  gboolean result;
+  GVariant *value;
+  gint n_items;
+
+  changeset = dconf_changeset_new ();
+  dconf_changeset_ref (changeset);
+  dconf_changeset_all (changeset, should_not_run, NULL);
+  n_items = dconf_changeset_describe (changeset, NULL, NULL, NULL);
+  g_assert_cmpint (n_items, ==, 0);
+  dconf_changeset_unref (changeset);
+  dconf_changeset_unref (changeset);
+
+  changeset = dconf_changeset_new_write ("/value/a", NULL);
+  result = dconf_changeset_all (changeset, is_null, NULL);
+  g_assert (result);
+  result = dconf_changeset_all (changeset, is_not_null, NULL);
+  g_assert (!result);
+
+  result = dconf_changeset_get (changeset, "/value/a", &value);
+  g_assert (result);
+  g_assert (value == NULL);
+
+  result = dconf_changeset_get (changeset, "/value/b", &value);
+  g_assert (!result);
+
+  dconf_changeset_set (changeset, "/value/b", g_variant_new_int32 (123));
+  result = dconf_changeset_all (changeset, is_null, NULL);
+  g_assert (!result);
+  result = dconf_changeset_all (changeset, is_not_null, NULL);
+  g_assert (!result);
+
+  result = dconf_changeset_get (changeset, "/value/a", &value);
+  g_assert (result);
+  g_assert (value == NULL);
+
+  result = dconf_changeset_get (changeset, "/value/b", &value);
+  g_assert (result);
+  g_assert_cmpint (g_variant_get_int32 (value), ==, 123);
+  g_variant_unref (value);
+
+  dconf_changeset_set (changeset, "/value/a", g_variant_new_string ("a string"));
+  result = dconf_changeset_all (changeset, is_null, NULL);
+  g_assert (!result);
+  result = dconf_changeset_all (changeset, is_not_null, NULL);
+  g_assert (result);
+
+  result = dconf_changeset_get (changeset, "/value/a", &value);
+  g_assert (result);
+  g_assert_cmpstr (g_variant_get_string (value, NULL), ==, "a string");
+  g_variant_unref (value);
+
+  result = dconf_changeset_get (changeset, "/value/b", &value);
+  g_assert (result);
+  g_assert_cmpint (g_variant_get_int32 (value), ==, 123);
+  g_variant_unref (value);
+
+  dconf_changeset_unref (changeset);
+}
+
+static void
+test_similarity (void)
+{
+  DConfChangeset *a, *b;
+
+  a = dconf_changeset_new ();
+  b = dconf_changeset_new ();
+
+  g_assert (dconf_changeset_is_similar_to (a, b));
+  g_assert (dconf_changeset_is_similar_to (b, a));
+
+  dconf_changeset_set (a, "/value/a", g_variant_new_int32 (0));
+  g_assert (!dconf_changeset_is_similar_to (a, b));
+  g_assert (!dconf_changeset_is_similar_to (b, a));
+
+  /* different values for the same key are still the same */
+  dconf_changeset_set (b, "/value/a", g_variant_new_int32 (1));
+  g_assert (dconf_changeset_is_similar_to (a, b));
+  g_assert (dconf_changeset_is_similar_to (b, a));
+
+  /* make sure even a NULL is counted as different */
+  dconf_changeset_set (a, "/value/b", NULL);
+  g_assert (!dconf_changeset_is_similar_to (a, b));
+  g_assert (!dconf_changeset_is_similar_to (b, a));
+
+  dconf_changeset_set (b, "/value/b", NULL);
+  g_assert (dconf_changeset_is_similar_to (a, b));
+  g_assert (dconf_changeset_is_similar_to (b, a));
+
+  /* different types are still the same */
+  dconf_changeset_set (b, "/value/a", g_variant_new_uint32 (222));
+  g_assert (dconf_changeset_is_similar_to (a, b));
+  g_assert (dconf_changeset_is_similar_to (b, a));
+
+  dconf_changeset_set (a, "/value/c", NULL);
+  dconf_changeset_set (b, "/value/d", NULL);
+  g_assert (!dconf_changeset_is_similar_to (a, b));
+  g_assert (!dconf_changeset_is_similar_to (b, a));
+
+  dconf_changeset_unref (a);
+  dconf_changeset_unref (b);
+}
+
+static void
+test_describe (void)
+{
+  DConfChangeset *changeset;
+  const gchar * const *keys;
+  GVariant * const *values;
+  const gchar *prefix;
+  gint n_items;
+  gint i;
+
+  /* test zero items */
+  changeset = dconf_changeset_new ();
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 0);
+  dconf_changeset_unref (changeset);
+
+  /* test one NULL item */
+  changeset = dconf_changeset_new_write ("/value/a", NULL);
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 1);
+  g_assert_cmpstr (prefix, ==, "/value/a");
+  g_assert_cmpstr (keys[0], ==, "");
+  g_assert (keys[1] == NULL);
+  g_assert (values[0] == NULL);
+
+
+  /* Check again */
+  prefix = NULL;
+  keys = NULL;
+  values = NULL;
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 1);
+  g_assert_cmpstr (prefix, ==, "/value/a");
+  g_assert_cmpstr (keys[0], ==, "");
+  g_assert (keys[1] == NULL);
+  g_assert (values[0] == NULL);
+  dconf_changeset_unref (changeset);
+
+  /* test one non-NULL item */
+  changeset = dconf_changeset_new_write ("/value/a", g_variant_new_int32 (55));
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 1);
+  g_assert_cmpstr (prefix, ==, "/value/a");
+  g_assert_cmpstr (keys[0], ==, "");
+  g_assert (keys[1] == NULL);
+  g_assert_cmpint (g_variant_get_int32 (values[0]), ==, 55);
+  dconf_changeset_unref (changeset);
+
+  /* test many items */
+  changeset = dconf_changeset_new ();
+  for (i = 0; i < 100; i++)
+    {
+      gchar key[80];
+
+      g_snprintf (key, sizeof key, "/test/value/%2d", i);
+
+      dconf_changeset_set (changeset, key, g_variant_new_int32 (i));
+    }
+
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, i);
+  g_assert_cmpstr (prefix, ==, "/test/value/");
+  for (i = 0; i < 100; i++)
+    {
+      gchar key[80];
+
+      g_snprintf (key, sizeof key, "%2d", i);
+
+      g_assert_cmpstr (keys[i], ==, key);
+      g_assert_cmpint (g_variant_get_int32 (values[i]), ==, i);
+    }
+  g_assert (keys[n_items] == NULL);
+  dconf_changeset_unref (changeset);
+
+  /* test many items with common names */
+  changeset = dconf_changeset_new ();
+  for (i = 0; i < 100; i++)
+    {
+      gchar key[80];
+
+      g_snprintf (key, sizeof key, "/test/value/aaa%02d", i);
+
+      dconf_changeset_set (changeset, key, g_variant_new_int32 (i));
+    }
+
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, i);
+  g_assert_cmpstr (prefix, ==, "/test/value/");
+  for (i = 0; i < 100; i++)
+    {
+      gchar key[80];
+
+      g_snprintf (key, sizeof key, "aaa%02d", i);
+
+      g_assert_cmpstr (keys[i], ==, key);
+      g_assert_cmpint (g_variant_get_int32 (values[i]), ==, i);
+    }
+  g_assert (keys[n_items] == NULL);
+  dconf_changeset_unref (changeset);
+
+  /* test several values in different directories */
+  changeset = dconf_changeset_new ();
+  dconf_changeset_set (changeset, "/value/reset/", NULL);
+  dconf_changeset_set (changeset, "/value/int/a", g_variant_new_int32 (123));
+  dconf_changeset_set (changeset, "/value/string", g_variant_new_string ("bar"));
+  dconf_changeset_set (changeset, "/value/string/a", g_variant_new_string ("foo"));
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 4);
+  g_assert_cmpstr (prefix, ==, "/value/");
+  g_assert_cmpstr (keys[0], ==, "int/a");
+  g_assert_cmpint (g_variant_get_int32 (values[0]), ==, 123);
+  g_assert_cmpstr (keys[1], ==, "reset/");
+  g_assert (values[1] == NULL);
+  g_assert_cmpstr (keys[2], ==, "string");
+  g_assert_cmpstr (g_variant_get_string (values[2], NULL), ==, "bar");
+  g_assert_cmpstr (keys[3], ==, "string/a");
+  g_assert_cmpstr (g_variant_get_string (values[3], NULL), ==, "foo");
+  g_assert (keys[4] == NULL);
+  dconf_changeset_unref (changeset);
+
+  /* test a couple of values in very different directories */
+  changeset = dconf_changeset_new_write ("/a/deep/directory/", NULL);
+  dconf_changeset_set (changeset, "/another/deep/directory/", NULL);
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 2);
+  g_assert_cmpstr (prefix, ==, "/");
+  g_assert_cmpstr (keys[0], ==, "a/deep/directory/");
+  g_assert_cmpstr (keys[1], ==, "another/deep/directory/");
+  g_assert (keys[2] == NULL);
+  g_assert (values[0] == NULL);
+  g_assert (values[1] == NULL);
+  dconf_changeset_unref (changeset);
+
+  /* one more similar case, but with the first letter different */
+  changeset = dconf_changeset_new_write ("/deep/directory/", NULL);
+  dconf_changeset_set (changeset, "/another/deep/directory/", NULL);
+  n_items = dconf_changeset_describe (changeset, &prefix, &keys, &values);
+  g_assert_cmpint (n_items, ==, 2);
+  g_assert_cmpstr (prefix, ==, "/");
+  g_assert_cmpstr (keys[0], ==, "another/deep/directory/");
+  g_assert_cmpstr (keys[1], ==, "deep/directory/");
+  g_assert (keys[2] == NULL);
+  g_assert (values[0] == NULL);
+  g_assert (values[1] == NULL);
+  dconf_changeset_unref (changeset);
+}
+
+int
+main (int argc, char **argv)
+{
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/changeset/basic", test_basic);
+  g_test_add_func ("/changeset/similarity", test_similarity);
+  g_test_add_func ("/changeset/describe", test_describe);
+
+  return g_test_run ();
+}