[gnome-builder/wip/libide] libide: add simple test case for triming tailing whitespace

[Christian Hergert <chergert src gnome org>]

commit 5a2dca42be074204983c8a211047c885c72c3f9f
Author: Christian Hergert <christian hergert me>
Date:   Thu Feb 26 21:57:12 2015 -0800

    libide: add simple test case for triming tailing whitespace

 .gitignore              |    1 +
 tests/test-ide-buffer.c |  144 +++++++++++++++++++++++++++++++++++++++++++++++
 tests/tests.mk          |    8 +++
 3 files changed, 153 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index 36072b7..6312945 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,6 +40,7 @@ libtool
 stamp-h1
 test-c-parse-helper
 test-ide-back-forward-list
+test-ide-buffer
 test-ide-buffer-manager
 test-ide-context
 test-ide-source-view
diff --git a/tests/test-ide-buffer.c b/tests/test-ide-buffer.c
new file mode 100644
index 0000000..fd30b3d
--- /dev/null
+++ b/tests/test-ide-buffer.c
@@ -0,0 +1,144 @@
+/* test-ide-buffer.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 <glib.h>
+#include <glib/gstdio.h>
+#include <ide.h>
+
+typedef struct
+{
+  GMainLoop    *main_loop;
+  IdeContext   *context;
+  GCancellable *cancellable;
+  GError       *error;
+} test_buffer_basic_state;
+
+static void
+flags_changed_cb (IdeBuffer *buffer,
+                  gpointer   user_data)
+{
+  test_buffer_basic_state *state = user_data;
+  g_autofree gchar *str = NULL;
+  GtkTextIter begin;
+  GtkTextIter end;
+
+  ide_buffer_trim_trailing_whitespace (buffer);
+
+  gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (buffer), &begin, &end);
+  str = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (buffer), &begin, &end, TRUE);
+  g_assert_cmpstr (str, ==, "abcd\n\n\n");
+
+  g_object_unref (buffer);
+
+  g_main_loop_quit (state->main_loop);
+}
+
+static void
+test_buffer_basic_cb2 (GObject      *object,
+                       GAsyncResult *result,
+                       gpointer      user_data)
+{
+  IdeBufferManager *manager = (IdeBufferManager *)object;
+  test_buffer_basic_state *state = user_data;
+  GError *error = NULL;
+  g_autoptr(IdeBuffer) ret = NULL;
+
+  ret = ide_buffer_manager_load_file_finish (manager, result, &error);
+  g_assert_no_error (error);
+  g_assert (ret);
+  g_assert (IDE_IS_BUFFER (ret));
+
+  g_signal_connect (ret, "line-flags-changed", G_CALLBACK (flags_changed_cb), state);
+  g_object_ref (ret);
+
+  gtk_text_buffer_set_text (GTK_TEXT_BUFFER (ret), "abcd  \n\n  \n", -1);
+}
+
+static void
+test_buffer_basic_cb1 (GObject      *object,
+                       GAsyncResult *result,
+                       gpointer      user_data)
+{
+  test_buffer_basic_state *state = user_data;
+  g_autoptr(IdeFile) file = NULL;
+  IdeBufferManager *manager;
+  IdeProject *project;
+
+  state->context = ide_context_new_finish (result, &state->error);
+
+  if (!state->context)
+    goto failure;
+
+  manager = ide_context_get_buffer_manager (state->context);
+
+  project = ide_context_get_project (state->context);
+  file = ide_project_get_file_for_path (project, "test-ide-buffer.tmp");
+
+  ide_buffer_manager_load_file_async (manager,
+                                      file,
+                                      FALSE,
+                                      NULL,
+                                      state->cancellable,
+                                      test_buffer_basic_cb2,
+                                      state);
+
+  return;
+
+failure:
+  g_main_loop_quit (state->main_loop);
+}
+
+static void
+test_buffer_basic (void)
+{
+  test_buffer_basic_state state = { 0 };
+  IdeBufferManager *manager;
+  GFile *project_file;
+
+  project_file = g_file_new_for_path (TEST_DATA_DIR"/project1/configure.ac");
+
+  state.main_loop = g_main_loop_new (NULL, FALSE);
+  state.cancellable = g_cancellable_new ();
+
+  ide_context_new_async (project_file, state.cancellable,
+                         test_buffer_basic_cb1, &state);
+
+  g_main_loop_run (state.main_loop);
+
+  g_assert_no_error (state.error);
+  g_assert (state.context);
+
+  manager = ide_context_get_buffer_manager (state.context);
+  g_assert (IDE_IS_BUFFER_MANAGER (manager));
+
+  g_clear_object (&state.cancellable);
+  g_clear_object (&state.context);
+  g_clear_error (&state.error);
+  g_main_loop_unref (state.main_loop);
+  g_clear_object (&project_file);
+}
+
+gint
+main (gint   argc,
+      gchar *argv[])
+{
+  gtk_init (&argc, &argv);
+  g_test_init (&argc, &argv, NULL);
+  g_test_add_func ("/Ide/Buffer/basic", test_buffer_basic);
+  return g_test_run ();
+}
diff --git a/tests/tests.mk b/tests/tests.mk
index ddeb3cc..a23dce7 100644
--- a/tests/tests.mk
+++ b/tests/tests.mk
@@ -38,6 +38,14 @@ test_ide_buffer_manager_CFLAGS = \
        -DTEST_DATA_DIR="\"$(top_srcdir)/tests/data\""
 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
+test_ide_buffer_CFLAGS = \
+       $(libide_1_0_la_CFLAGS) \
+       -DTEST_DATA_DIR="\"$(top_srcdir)/tests/data\""
+test_ide_buffer_LDADD = libide-1.0.la $(LIBIDE_LIBS)
+
 
 noinst_PROGRAMS += test-ide-source-view
 test_ide_source_view_SOURCES = tests/test-ide-source-view.c