[gtk/ci-file-filters] Add GtkFileFilter tests

[Matthias Clasen <matthiasc src gnome org>]

commit 38af6ba08d49eb8b92a26baf990fba9f56ef9bbc
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 4 18:34:01 2021 -0400

    Add GtkFileFilter tests

 testsuite/gtk/filefilter.c | 131 +++++++++++++++++++++++++++++++++++++++++++++
 testsuite/gtk/meson.build  |   1 +
 2 files changed, 132 insertions(+)
---
diff --git a/testsuite/gtk/filefilter.c b/testsuite/gtk/filefilter.c
new file mode 100644
index 0000000000..6cb659fec7
--- /dev/null
+++ b/testsuite/gtk/filefilter.c
@@ -0,0 +1,131 @@
+/* GtkFileFilter tests
+ *
+ * Copyright (C) 2021, Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <locale.h>
+
+#include <gtk/gtk.h>
+
+static void
+test_basic (void)
+{
+  GtkFileFilter *filter;
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_set_name (filter, "test");
+  g_assert_cmpstr (gtk_file_filter_get_name (filter), ==, "test");
+
+  g_object_unref (filter);
+}
+
+static void
+test_pattern (void)
+{
+  GtkFileFilter *filter;
+  char *attrs;
+  GFileInfo *info;
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_add_pattern (filter, "D*.st[xy]");
+  attrs = g_strjoinv (",", (char **)gtk_file_filter_get_attributes (filter));
+
+  info = g_file_info_new ();
+
+  g_file_info_set_display_name (info, "abracadabra");
+  g_assert_false (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "dro.stx");
+  g_assert_false (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "Dro.sty");
+  g_assert_true (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_object_unref (info);
+  g_free (attrs);
+  g_object_unref (filter);
+}
+
+static void
+test_suffix (void)
+{
+  GtkFileFilter *filter;
+  char *attrs;
+  GFileInfo *info;
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_add_suffix (filter, "txt");
+  attrs = g_strjoinv (",", (char **)gtk_file_filter_get_attributes (filter));
+
+  info = g_file_info_new ();
+
+  g_file_info_set_display_name (info, "abracadabra");
+  g_assert_false (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "dro.txt");
+  g_assert_true (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "dro.TXT");
+  g_assert_true (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_object_unref (info);
+  g_free (attrs);
+  g_object_unref (filter);
+}
+
+static void
+test_mime_type (void)
+{
+  GtkFileFilter *filter;
+  char *attrs;
+  GFileInfo *info;
+
+  filter = gtk_file_filter_new ();
+  gtk_file_filter_add_mime_type (filter, "image/png");
+  attrs = g_strjoinv (",", (char **)gtk_file_filter_get_attributes (filter));
+
+  info = g_file_info_new ();
+
+  g_file_info_set_display_name (info, "abracadabra");
+  g_file_info_set_content_type (info, "text/plain");
+  g_assert_false (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "dro.png");
+  g_file_info_set_content_type (info, "image/png");
+  g_assert_true (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_file_info_set_display_name (info, "dro.PNG");
+  g_file_info_set_content_type (info, "image/png");
+  g_assert_true (gtk_filter_match (GTK_FILTER (filter), info));
+
+  g_object_unref (info);
+  g_free (attrs);
+  g_object_unref (filter);
+}
+
+int
+main (int argc, char *argv[])
+{
+  (g_test_init) (&argc, &argv, NULL);
+  setlocale (LC_ALL, "C");
+
+  g_test_add_func ("/filefilter/basic", test_basic);
+  g_test_add_func ("/filefilter/pattern", test_pattern);
+  g_test_add_func ("/filefilter/suffix", test_suffix);
+  g_test_add_func ("/filefilter/mimetype", test_mime_type);
+
+  return g_test_run ();
+}
diff --git a/testsuite/gtk/meson.build b/testsuite/gtk/meson.build
index a0b53250ed..f81692d255 100644
--- a/testsuite/gtk/meson.build
+++ b/testsuite/gtk/meson.build
@@ -38,6 +38,7 @@ tests = [
   { 'name': 'defaultvalue' },
   { 'name': 'entry' },
   { 'name': 'expression' },
+  { 'name': 'filefilter' },
   { 'name': 'filter' },
   { 'name': 'filterlistmodel' },
   {