Add tests for gdk_content_formats_parse

Add a test that checks we can roundtrip things through
gdk_content_formats_parse and gdk_content_formats_to_string.

testsuite/gdk/contentformats.c

@@ -0,0 +1,116 @@
+#include <gdk/gdk.h>
+
+static void
+test_contentformats_parse (void)
+{
+  struct {
+    const char *test;
+    const char *output;
+  } tests[] = {
+    { "", "" },
+    { "text/plain;charset=utf8", "text/plain;charset=utf8" },
+    { "text/plain GdkRGBA", "GdkRGBA text/plain" },
+    { "text/plain\nGdkRGBA", "GdkRGBA text/plain" },
+    { "text/plain\t\nGdkRGBA", "GdkRGBA text/plain" },
+    { "UUU", NULL },
+    { "GdkFileList", "GdkFileList" },
+  };
+
+  for (int i = 0; i < G_N_ELEMENTS (tests); i++)
+    {
+      GdkContentFormats *formats;
+      char *s;
+
+      formats = gdk_content_formats_parse (tests[i].test);
+      if (tests[i].output == NULL)
+        {
+          g_assert_null (formats);
+          continue;
+        }
+
+      s = gdk_content_formats_to_string (formats);
+
+      g_assert_cmpstr (s, ==, tests[i].output);
+
+      gdk_content_formats_unref (formats);
+      g_free (s);
+
+      formats = gdk_content_formats_parse (tests[i].output);
+      s = gdk_content_formats_to_string (formats);
+
+      g_assert_cmpstr (s, ==, tests[i].output);
+
+      gdk_content_formats_unref (formats);
+      g_free (s);
+    }
+}
+
+static void
+test_contentformats_types (void)
+{
+  GdkContentFormats *formats;
+  const char *const *mimetypes;
+  gsize n_types;
+  const GType *gtypes;
+
+  formats = gdk_content_formats_parse ("text/plain GdkFileList application/x-color GdkRGBA");
+
+  g_assert_nonnull (formats);
+
+  mimetypes = gdk_content_formats_get_mime_types (formats, &n_types);
+  g_assert_true (n_types == 2);
+  g_assert_cmpstr (mimetypes[0], ==, "text/plain");
+  g_assert_cmpstr (mimetypes[1], ==, "application/x-color");
+
+  gtypes = gdk_content_formats_get_gtypes (formats, &n_types);
+  g_assert_true (n_types == 2);
+  g_assert_true (gtypes[0] == GDK_TYPE_FILE_LIST);
+  g_assert_true (gtypes[1] == GDK_TYPE_RGBA);
+
+  gdk_content_formats_unref (formats);
+}
+
+static void
+test_contentformats_union (void)
+{
+  GdkContentFormats *formats;
+  GdkContentFormats *formats2;
+  const char *const *mimetypes;
+  gsize n_types;
+  const GType *gtypes;
+
+  formats = gdk_content_formats_parse ("text/plain application/x-color");
+  formats2 = gdk_content_formats_parse ("GdkFileList GdkRGBA");
+
+  formats = gdk_content_formats_union (formats, formats2);
+
+  g_assert_nonnull (formats);
+
+  mimetypes = gdk_content_formats_get_mime_types (formats, &n_types);
+  g_assert_true (n_types == 2);
+  g_assert_cmpstr (mimetypes[0], ==, "text/plain");
+  g_assert_cmpstr (mimetypes[1], ==, "application/x-color");
+
+  gtypes = gdk_content_formats_get_gtypes (formats, &n_types);
+  g_assert_true (n_types == 2);
+  g_assert_true (gtypes[0] == GDK_TYPE_FILE_LIST);
+  g_assert_true (gtypes[1] == GDK_TYPE_RGBA);
+
+  gdk_content_formats_unref (formats2);
+  gdk_content_formats_unref (formats);
+}
+
+int
+main (int argc, char *argv[])
+{
+  (g_test_init) (&argc, &argv, NULL);
+
+  g_type_ensure (GDK_TYPE_RGBA);
+  g_type_ensure (GDK_TYPE_FILE_LIST);
+
+  g_test_add_func ("/contentformats/parse", test_contentformats_parse);
+  g_test_add_func ("/contentformats/types", test_contentformats_types);
+  g_test_add_func ("/contentformats/union", test_contentformats_union);
+
+  return g_test_run ();
+}

testsuite/gdk/meson.build

@@ -13,6 +13,7 @@ tests = [
   'array',
   'cairo',
   'clipboard',
+  'contentformats',
   'contentserializer',
   'cursor',
   'display',