[gnome-builder] tests: add test-ide-indenter

[Christian Hergert <chergert src gnome org>]

commit c05191066d49fc43183b9152aa074e18944c07cb
Author: Christian Hergert <christian hergert me>
Date:   Thu Apr 9 18:06:24 2015 -0700

    tests: add test-ide-indenter
    
    A basic unit test that synthesizes input characters from an input string
    and verifies the auto indenter performed the given output.
    
    We need to add a lot of these before we start rewriting the IdeCIndenter.

 .gitignore                |    1 +
 tests/test-ide-indenter.c |  220 +++++++++++++++++++++++++++++++++++++++++++++
 tests/tests.mk            |   12 +++
 3 files changed, 233 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index e1ad897..3235a0e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,7 @@ test-ide-buffer
 test-ide-buffer-manager
 test-ide-context
 test-ide-file-settings
+test-ide-indenter
 test-ide-source-view
 test-ide-vcs-uri
 test-navigation-list
diff --git a/tests/test-ide-indenter.c b/tests/test-ide-indenter.c
new file mode 100644
index 0000000..1def11b
--- /dev/null
+++ b/tests/test-ide-indenter.c
@@ -0,0 +1,220 @@
+/* test-ide-indenter.c
+ *
+ * Copyright (C) 2015 Christian Hergert <christian hergert me>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <ide.h>
+#include <string.h>
+
+typedef void (*IndentTestFunc) (IdeContext *context,
+                                GtkWidget  *widget);
+
+typedef struct
+{
+  IndentTestFunc  func;
+  gchar          *path;
+} IndentTest;
+
+static void
+new_context_cb (GObject      *object,
+                GAsyncResult *result,
+                gpointer      user_data)
+{
+  IndentTest *test = user_data;
+  GtkWidget *window;
+  GtkWidget *widget;
+  IdeBuffer *buffer;
+  GtkSourceCompletion *completion;
+  IdeContext *context;
+  IdeProject *project;
+  IdeFile *file;
+  GError *error = NULL;
+
+  g_assert (test != NULL);
+  g_assert (test->func != NULL);
+  g_assert (test->path != NULL);
+
+  context = ide_context_new_finish (result, &error);
+  g_assert_no_error (error);
+  g_assert (context != NULL);
+  g_assert (IDE_IS_CONTEXT (context));
+
+  project = ide_context_get_project (context);
+  file = ide_project_get_file_for_path (project, test->path);
+
+  buffer = g_object_new (IDE_TYPE_BUFFER,
+                         "context", context,
+                         "file", file,
+                         NULL);
+
+  window = gtk_offscreen_window_new ();
+  widget = g_object_new (IDE_TYPE_SOURCE_VIEW,
+                         "auto-indent", TRUE,
+                         "buffer", buffer,
+                         "visible", TRUE,
+                         NULL);
+  gtk_container_add (GTK_CONTAINER (window), widget);
+
+  completion = gtk_source_view_get_completion (GTK_SOURCE_VIEW (widget));
+  gtk_source_completion_block_interactive (completion);
+
+  gtk_window_present (GTK_WINDOW (window));
+
+  while (gtk_events_pending ())
+    gtk_main_iteration ();
+
+  test->func (context, widget);
+
+#if 0
+  ide_context_unload_async (context,
+                            NULL,
+                            (GAsyncReadyCallback)gtk_main_quit,
+                            NULL);
+#else
+  gtk_main_quit ();
+#endif
+
+  g_object_unref (buffer);
+  g_object_unref (file);
+  g_free (test->path);
+  g_free (test);
+}
+
+static void
+run_test (const gchar    *path,
+          IndentTestFunc  func)
+{
+  g_autoptr(GFile) project_file = NULL;
+  IndentTest *test;
+
+  test = g_new0 (IndentTest, 1);
+  test->path = g_strdup (path);
+  test->func = func;
+
+  project_file = g_file_new_for_path (TEST_DATA_DIR"/project1/configure.ac");
+  ide_context_new_async (project_file,
+                         NULL,
+                         new_context_cb,
+                         test);
+
+  gtk_main ();
+}
+
+static GdkEventKey *
+synthesize_event (GtkTextView *text_view,
+                  gunichar     ch)
+{
+  GdkWindow *window;
+  GdkEvent *ev;
+  gchar str[8] = { 0 };
+
+  window = gtk_text_view_get_window (text_view, GTK_TEXT_WINDOW_TEXT);
+  g_assert (window != NULL);
+  g_assert (GDK_IS_WINDOW (window));
+
+  g_unichar_to_utf8 (ch, str);
+
+  ev = gdk_event_new (GDK_KEY_PRESS);
+  ev->key.window = g_object_ref (window);
+  ev->key.send_event = TRUE;
+  ev->key.time = gtk_get_current_event_time ();
+  ev->key.state = 0;
+  if (ch == '\n')
+    ev->key.keyval = GDK_KEY_Return;
+  else
+    ev->key.keyval = gdk_unicode_to_keyval (ch);
+  ev->key.length = strlen (str);
+  ev->key.string = g_strdup (str);
+  ev->key.hardware_keycode = 0;
+  ev->key.group = 0;
+  ev->key.is_modifier = 0;
+
+  return &ev->key;
+}
+
+/*
+ * Converts the input_chars into GdkEventKeys and synthesizes them to
+ * the widget. Then ensures that we get the proper string back out.
+ */
+static void
+assert_keypress_equal (GtkWidget   *widget,
+                       const gchar *input_chars,
+                       const gchar *output_str)
+{
+  g_autofree gchar *result = NULL;
+  GtkTextView *text_view = (GtkTextView *)widget;
+  GtkTextBuffer *buffer;
+  GtkTextIter begin;
+  GtkTextIter end;
+
+  g_assert (GTK_IS_TEXT_VIEW (widget));
+
+  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (widget));
+  g_assert (GTK_IS_TEXT_BUFFER (buffer));
+
+  for (; *input_chars; input_chars = g_utf8_next_char (input_chars))
+    {
+      gunichar ch = g_utf8_get_char (input_chars);
+      GdkEventKey *event;
+
+      while (gtk_events_pending ())
+        gtk_main_iteration ();
+
+      event = synthesize_event (text_view, ch);
+      GTK_WIDGET_GET_CLASS (widget)->key_press_event (widget, event);
+      gdk_event_free ((GdkEvent *)event);
+    }
+
+  gtk_text_buffer_get_bounds (buffer, &begin, &end);
+  result = gtk_text_buffer_get_text (buffer, &begin, &end, TRUE);
+
+  g_assert_cmpstr (result, ==, output_str);
+
+  gtk_text_buffer_set_text (buffer, "", 0);
+}
+
+static void
+test_cindenter_basic_cb (IdeContext *context,
+                         GtkWidget  *widget)
+{
+  g_object_set (widget,
+                "insert-matching-brace", TRUE,
+                "overwrite-braces", TRUE,
+                NULL);
+
+  assert_keypress_equal (widget, "  #include <glib.h>", "#include <glib.h>");
+  assert_keypress_equal (widget, "\n  #include <glib.h>", "\n#include <glib.h>");
+  assert_keypress_equal (widget, "if (abcd)\n{\n", "if (abcd)\n  {\n    \n  }");
+  assert_keypress_equal (widget,
+                         "static void\nfoo (GtkWidget *widget,\nGError **error)",
+                         "static void\nfoo (GtkWidget  *widget,\n     GError    **error)");
+}
+
+static void
+test_cindenter_basic (void)
+{
+  run_test ("test.c", test_cindenter_basic_cb);
+}
+
+gint
+main (gint argc,
+      gchar *argv[])
+{
+  gtk_init (&argc, &argv);
+  g_test_init (&argc, &argv, NULL);
+  g_test_add_func ("/Ide/CIndenter/basic", test_cindenter_basic);
+  return g_test_run ();
+}
diff --git a/tests/tests.mk b/tests/tests.mk
index 2cf7673..17cbc7a 100644
--- a/tests/tests.mk
+++ b/tests/tests.mk
@@ -34,6 +34,7 @@ test_ide_buffer_manager_CFLAGS = \
        -DBUILDDIR="\"$(abs_top_builddir)\""
 test_ide_buffer_manager_LDADD = libide-1.0.la $(LIBIDE_LIBS)
 
+
 noinst_PROGRAMS += test-ide-buffer
 TESTS += test-ide-buffer
 test_ide_buffer_SOURCES = tests/test-ide-buffer.c
@@ -43,6 +44,7 @@ test_ide_buffer_CFLAGS = \
        -DBUILDDIR="\"$(abs_top_builddir)\""
 test_ide_buffer_LDADD = libide-1.0.la $(LIBIDE_LIBS)
 
+
 noinst_PROGRAMS += test-ide-file-settings
 TESTS += test-ide-file-settings
 test_ide_file_settings_SOURCES = tests/test-ide-file-settings.c
@@ -53,6 +55,16 @@ test_ide_file_settings_CFLAGS = \
 test_ide_file_settings_LDADD = libide-1.0.la $(LIBIDE_LIBS)
 
 
+noinst_PROGRAMS += test-ide-indenter
+TESTS += test-ide-indenter
+test_ide_indenter_SOURCES = tests/test-ide-indenter.c
+test_ide_indenter_CFLAGS = \
+       $(libide_1_0_la_CFLAGS) \
+       -DTEST_DATA_DIR="\"$(top_srcdir)/tests/data\"" \
+       -DBUILDDIR="\"$(abs_top_builddir)\""
+test_ide_indenter_LDADD = libide-1.0.la $(LIBIDE_LIBS)
+
+
 noinst_PROGRAMS += test-ide-source-view
 test_ide_source_view_SOURCES = tests/test-ide-source-view.c
 test_ide_source_view_CFLAGS = \