[gnome-builder/wip/libide] libide: add tests for IdeBackForwardList

[Christian Hergert <chergert src gnome org>]

commit 331edee4c5e542d5e314a56ab5b456b4ae515060
Author: Christian Hergert <christian hergert me>
Date:   Tue Feb 10 14:42:21 2015 -0800

    libide: add tests for IdeBackForwardList

 .gitignore                         |    1 +
 tests/test-ide-back-forward-list.c |  178 ++++++++++++++++++++++++++++++++++++
 tests/tests.mk                     |    9 ++
 3 files changed, 188 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index aec3388..ec71845 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,5 +32,6 @@ libide.la
 libtool
 stamp-h1
 test-c-parse-helper
+test-ide-back-forward-list
 test-ide-context
 test-navigation-list
diff --git a/tests/test-ide-back-forward-list.c b/tests/test-ide-back-forward-list.c
new file mode 100644
index 0000000..9a52ed6
--- /dev/null
+++ b/tests/test-ide-back-forward-list.c
@@ -0,0 +1,178 @@
+/* test-ide-back-forward-list.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 <ide.h>
+
+typedef struct
+{
+  GMainLoop    *main_loop;
+  IdeContext   *context;
+  GCancellable *cancellable;
+  GError       *error;
+} test_state_t;
+
+static IdeBackForwardItem *
+parse_item (test_state_t *state,
+            const gchar  *str)
+{
+  IdeBackForwardItem *ret;
+  IdeSourceLocation *location;
+  IdeFile *file;
+  gchar **parts;
+  GFile *gfile;
+  gsize i;
+  guint offset;
+  guint line;
+  guint line_offset;
+
+  parts = g_strsplit (str, " ", 0);
+
+  if (g_strv_length (parts) != 4)
+    {
+      g_strfreev (parts);
+      return NULL;
+    }
+
+  gfile = g_file_new_for_path (parts [0]);
+
+  file = g_object_new (IDE_TYPE_FILE,
+                       "context", state->context,
+                       "file", gfile,
+                       NULL);
+
+  location = ide_source_location_new (file,
+                                      atoi (parts[1]),
+                                      atoi(parts[2]),
+                                      atoi(parts[3]));
+
+  ret = g_object_new (IDE_TYPE_BACK_FORWARD_ITEM,
+                      "context", state->context,
+                      "location", location,
+                      NULL);
+
+  g_clear_object (&gfile);
+  g_clear_object (&file);
+  g_strfreev (parts);
+
+  return ret;
+}
+
+static void
+exercise1 (test_state_t       *state,
+           IdeBackForwardList *list)
+{
+  const gchar *items[] = {
+    "test.c 10 10 100",
+    "test.c 20 10 200",
+    "test.h 0 0 0",
+    "test.c 1 2 3",
+    "test.h 1 2 3",
+  };
+  gsize i;
+
+  for (i = 0; i < G_N_ELEMENTS (items); i++)
+    {
+      IdeBackForwardItem *item;
+
+      item = parse_item (state, items [i]);
+      ide_back_forward_list_push (list, item);
+      g_assert (item == ide_back_forward_list_get_current_item (list));
+      g_assert (!ide_back_forward_list_get_can_go_forward (list));
+      if (i > 0)
+        g_assert (ide_back_forward_list_get_can_go_backward (list));
+      g_object_unref (item);
+    }
+
+  for (i = 0; i < G_N_ELEMENTS (items) - 1; i++)
+    {
+      g_assert (ide_back_forward_list_get_can_go_backward (list));
+      ide_back_forward_list_go_backward (list);
+    }
+
+  g_assert (!ide_back_forward_list_get_can_go_backward (list));
+  g_test_expect_message ("ide-back-forward-list", G_LOG_LEVEL_WARNING,
+                         "Cannot go backward, no more items in queue.");
+  ide_back_forward_list_go_backward (list);
+
+  for (i = 0; i < G_N_ELEMENTS (items) - 1; i++)
+    {
+      g_assert (ide_back_forward_list_get_can_go_forward (list));
+      ide_back_forward_list_go_forward (list);
+    }
+
+  g_assert (!ide_back_forward_list_get_can_go_forward (list));
+  g_test_expect_message ("ide-back-forward-list", G_LOG_LEVEL_WARNING,
+                         "Cannot go forward, no more items in queue.");
+  ide_back_forward_list_go_forward (list);
+}
+
+static void
+test_basic_cb (GObject      *object,
+               GAsyncResult *result,
+               gpointer      user_data)
+{
+  test_state_t *state = user_data;
+
+  state->context = ide_context_new_finish (result, &state->error);
+
+  if (state->context)
+    {
+      IdeBackForwardList *list;
+
+      list = ide_context_get_back_forward_list (state->context);
+      exercise1 (state, list);
+    }
+
+  g_main_loop_quit (state->main_loop);
+}
+
+static void
+test_basic (void)
+{
+  test_state_t state = { 0 };
+  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_basic_cb, &state);
+
+  g_main_loop_run (state.main_loop);
+
+  g_assert_no_error (state.error);
+  g_assert (IDE_IS_CONTEXT (state.context));
+
+  g_main_loop_unref (state.main_loop);
+  g_clear_object (&state.cancellable);
+  g_clear_object (&state.context);
+  g_clear_object (&project_file);
+  g_clear_error (&state.error);
+}
+
+gint
+main (gint   argc,
+      gchar *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+  g_test_add_func ("/Ide/BackForwardList/basic", test_basic);
+  return g_test_run ();
+}
diff --git a/tests/tests.mk b/tests/tests.mk
index d74ef13..8ed9652 100644
--- a/tests/tests.mk
+++ b/tests/tests.mk
@@ -21,6 +21,15 @@ test_ide_context_CFLAGS = \
 test_ide_context_LDADD = libide.la
 
 
+noinst_PROGRAMS += test-ide-back-forward-list
+TESTS += test-ide-back-forward-list
+test_ide_back_forward_list_SOURCES = tests/test-ide-back-forward-list.c
+test_ide_back_forward_list_CFLAGS = \
+       $(libide_la_CFLAGS) \
+       -DTEST_DATA_DIR="\"$(top_srcdir)/tests/data\""
+test_ide_back_forward_list_LDADD = libide.la
+
+
 EXTRA_DIST += \
        tests/data/project1/configure.ac \
        $(NULL)