[gtk/clipboard-test] Add more clipboard tests

[Matthias Clasen <matthiasc src gnome org>]

commit 091ed65fd2f261e7bcf8d4a7c8517f68b2257d54
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Apr 26 17:02:50 2021 -0400

    Add more clipboard tests
    
    This tests the simplest cases of copying text,
    files, or colors between processes.
    
    Currently, the tests work under X11. Under mutter,
    only the text copying works. Under weston, text
    and color works.

 testsuite/gdk/clipboard-client.c | 190 +++++++++++++++++++++++++++++++++++++++
 testsuite/gdk/clipboard.c        |  99 ++++++++++++++++++++
 testsuite/gdk/meson.build        |   7 ++
 3 files changed, 296 insertions(+)
---
diff --git a/testsuite/gdk/clipboard-client.c b/testsuite/gdk/clipboard-client.c
new file mode 100644
index 0000000000..88ae607358
--- /dev/null
+++ b/testsuite/gdk/clipboard-client.c
@@ -0,0 +1,190 @@
+#include <gtk/gtk.h>
+
+static void
+got_text_cb (GObject      *source,
+             GAsyncResult *result,
+             gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  char *text;
+
+  text = gdk_clipboard_read_text_finish (clipboard, result, &error);
+  if (text)
+    {
+      g_print ("%s", text);
+      g_free (text);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static void
+got_file (GObject      *source,
+          GAsyncResult *result,
+          gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  const GValue *value;
+
+  value = gdk_clipboard_read_value_finish (clipboard, result, &error);
+  if (value)
+    {
+      GFile *file = g_value_get_object (value);
+      char *path = g_file_get_path (file);
+      g_print ("%s", path);
+      g_free (path);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static void
+got_color (GObject      *source,
+           GAsyncResult *result,
+           gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  const GValue *value;
+
+  value = gdk_clipboard_read_value_finish (clipboard, result, &error);
+  if (value)
+    {
+      GdkRGBA *color = g_value_get_boxed (value);
+      char *s = gdk_rgba_to_string (color);
+      g_print ("%s", s);
+      g_free (s);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static const char *action;
+static const char *type;
+static const char *value;
+
+static void
+do_it (GObject    *object,
+       GParamSpec *pspec)
+{
+  GdkClipboard *clipboard;
+
+  clipboard = gdk_display_get_clipboard (gdk_display_get_default ());
+
+  if (strcmp (action, "info") == 0)
+    {
+      GdkContentFormats *formats;
+      char *s;
+
+      formats = gdk_clipboard_get_formats (clipboard);
+      s = gdk_content_formats_to_string (formats);
+      g_print ("%s\n", s);
+      g_free (s);
+    }
+  else if (strcmp (action, "set") == 0)
+    {
+      GdkContentFormats *formats;
+      char *s;
+
+      if (strcmp (type, "string") == 0)
+        gdk_clipboard_set_text (clipboard, value);
+      else if (strcmp (type, "file") == 0)
+        {
+          GFile *file;
+
+          file = g_file_new_for_commandline_arg (value);
+          gdk_clipboard_set (clipboard, G_TYPE_FILE, file);
+          g_object_unref (file);
+        }
+      else if (strcmp (type, "color") == 0)
+        {
+          GdkRGBA color;
+
+          gdk_rgba_parse (&color, value);
+          gdk_clipboard_set (clipboard, GDK_TYPE_RGBA, &color);
+        }
+      else
+        g_error ("can't set %s", type);
+
+      formats = gdk_clipboard_get_formats (clipboard);
+      s = gdk_content_formats_to_string (formats);
+      g_print ("%s\n", s);
+      g_free (s);
+    }
+  else if (strcmp (action, "get") == 0)
+    {
+      if (strcmp (type, "string") == 0)
+        gdk_clipboard_read_text_async (clipboard, NULL, got_text_cb, NULL);
+      else if (strcmp (type, "file") == 0)
+        gdk_clipboard_read_value_async (clipboard, G_TYPE_FILE, 0, NULL, got_file, NULL);
+      else if (strcmp (type, "color") == 0)
+        gdk_clipboard_read_value_async (clipboard, GDK_TYPE_RGBA, 0, NULL, got_color, NULL);
+      else
+        g_error ("can't get %s", type);
+    }
+  else
+    g_error ("can only set, get or info");
+}
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *window;
+  gboolean done = FALSE;
+
+  if (argc < 2)
+    g_error ("too few arguments");
+
+  action = argv[1];
+
+  if (strcmp (action, "info") == 0)
+    {
+    }
+  else if (strcmp (action, "set") == 0)
+    {
+      if (argc < 4)
+        g_error ("too few arguments for set");
+
+      type = argv[2];
+      value = argv[3];
+    }
+  else if (strcmp (action, "get") == 0)
+    {
+      if (argc < 3)
+        g_error ("too few arguments for get");
+
+      type = argv[2];
+    }
+  else
+    g_error ("can only set or get");
+
+  gtk_init ();
+
+  window = gtk_window_new ();
+
+  gtk_window_present (GTK_WINDOW (window));
+
+  g_signal_connect (window, "notify::is-active", G_CALLBACK (do_it), NULL);
+
+  while (!done)
+    g_main_context_iteration (NULL, TRUE);
+
+  return 0;
+}
diff --git a/testsuite/gdk/clipboard.c b/testsuite/gdk/clipboard.c
index aa3b1055f2..096a77fe55 100644
--- a/testsuite/gdk/clipboard.c
+++ b/testsuite/gdk/clipboard.c
@@ -70,6 +70,102 @@ test_clipboard_basic (void)
   g_value_unset (&value);
 }
 
+static void
+read_upto_done (GObject      *source,
+                GAsyncResult *result,
+                gpointer      data)
+{
+  GDataInputStream *out = G_DATA_INPUT_STREAM (source);
+  gboolean *done = data;
+  char *str;
+  GError *error = NULL;
+
+  str = g_data_input_stream_read_upto_finish (out, result, NULL, &error);
+  g_assert_no_error (error);
+  g_free (str);
+
+  *done = TRUE;
+  g_main_context_wakeup (NULL);
+}
+
+static void
+test_clipboard_roundtrip (const char *type,
+                          const char *value,
+                          const char *result)
+{
+  GSubprocess *source, *target;
+  char *clipboard_client;
+  GError *error = NULL;
+  GDataInputStream *out;
+  gboolean done = FALSE;
+  char *stdout_buf = NULL;
+  char *stderr_buf = NULL;
+
+  clipboard_client = g_test_build_filename (G_TEST_BUILT, "/clipboard-client", NULL);
+
+  source = g_subprocess_new (G_SUBPROCESS_FLAGS_STDOUT_PIPE,
+                             &error,
+                             clipboard_client,
+                             "set", type, value, NULL);
+  g_assert_no_error (error);
+
+  /* Wait until the first child has claimed the clipboard */
+  out = g_data_input_stream_new (g_subprocess_get_stdout_pipe (source));
+  g_data_input_stream_read_upto_async (out, "\n", 1, 0, NULL, read_upto_done, &done);
+
+  while (!done)
+    g_main_context_iteration (NULL, TRUE);
+
+  g_object_unref (out);
+
+  target = g_subprocess_new (G_SUBPROCESS_FLAGS_STDOUT_PIPE,
+                             &error,
+                             clipboard_client,
+                             "get", type, NULL);
+
+  g_free (clipboard_client);
+
+  if (!target)
+    {
+      g_test_fail ();
+      g_error_free (error);
+
+      g_subprocess_force_exit (source);
+      g_object_unref (source);
+
+      return;
+    }
+
+  g_subprocess_communicate_utf8 (target, NULL, NULL, &stdout_buf, &stderr_buf, &error);
+
+  g_subprocess_force_exit (source);
+  g_object_unref (source);
+
+  g_assert_no_error (error);
+  g_assert_cmpstr (stdout_buf, ==, result);
+  g_assert_null (stderr_buf);
+  g_free (stdout_buf);
+  g_object_unref (target);
+}
+
+static void
+test_clipboard_text (void)
+{
+  test_clipboard_roundtrip ("string", "abcdef1230", "abcdef1230");
+}
+
+static void
+test_clipboard_color (void)
+{
+  test_clipboard_roundtrip ("color", "red", "rgb(255,0,0)");
+}
+
+static void
+test_clipboard_file (void)
+{
+  test_clipboard_roundtrip ("file", "/etc/passwd", "/etc/passwd");
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -78,6 +174,9 @@ main (int argc, char *argv[])
   gtk_init ();
 
   g_test_add_func ("/clipboard/basic", test_clipboard_basic);
+  g_test_add_func ("/clipboard/text", test_clipboard_text);
+  g_test_add_func ("/clipboard/color", test_clipboard_color);
+  g_test_add_func ("/clipboard/file", test_clipboard_file);
 
   return g_test_run ();
 }
diff --git a/testsuite/gdk/meson.build b/testsuite/gdk/meson.build
index 5216d7a518..edc290ff7a 100644
--- a/testsuite/gdk/meson.build
+++ b/testsuite/gdk/meson.build
@@ -1,3 +1,10 @@
+clipboard_client = executable('clipboard-client',
+                              sources: ['clipboard-client.c'],
+                              include_directories: [confinc],
+                              c_args: common_cflags,
+                              dependencies: [ libgtk_dep ],
+                              install: false)
+
 testexecdir = join_paths(installed_test_bindir, 'gdk')
 testdatadir = join_paths(installed_test_datadir, 'gdk')