[gegl] tests: Add test case for backend file's path

[Daniel Sabo <daniels src gnome org>]

commit beb8430ed9add002dcd1f9eeedc0a0c6de426f3d
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Thu Jan 30 00:13:25 2014 -0800

    tests: Add test case for backend file's path

 tests/simple/.gitignore          |    1 +
 tests/simple/Makefile.am         |    1 +
 tests/simple/test-backend-file.c |  186 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 188 insertions(+), 0 deletions(-)
---
diff --git a/tests/simple/.gitignore b/tests/simple/.gitignore
index 02bb590..1096bbd 100644
--- a/tests/simple/.gitignore
+++ b/tests/simple/.gitignore
@@ -5,6 +5,7 @@
 /.libs
 /Makefile
 /Makefile.in
+/test-backend-file
 /test-change-processor-rect
 /test-color-op
 /test-convert-format
diff --git a/tests/simple/Makefile.am b/tests/simple/Makefile.am
index dae8755..f7744d9 100644
--- a/tests/simple/Makefile.am
+++ b/tests/simple/Makefile.am
@@ -1,5 +1,6 @@
 # The tests
 noinst_PROGRAMS =                      \
+       test-backend-file               \
        test-buffer-cast                \
        test-buffer-changes             \
        test-buffer-extract             \
diff --git a/tests/simple/test-backend-file.c b/tests/simple/test-backend-file.c
new file mode 100644
index 0000000..c8a8f49
--- /dev/null
+++ b/tests/simple/test-backend-file.c
@@ -0,0 +1,186 @@
+/*
+ * 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/>.
+ *
+ * Copyright (C) 2014 Daniel Sabo
+ */
+#include "gegl.h"
+#include "gegl-buffer-backend.h"
+#include "gegl-tile-backend-file.h"
+
+#include <glib/gstdio.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static gboolean
+test_buffer_path (void)
+{
+  gboolean         result = TRUE;
+  gchar           *tmpdir = NULL;
+  gchar           *buf_a_path = NULL;
+  gchar           *buf_a_real_path = NULL;
+  GeglBuffer      *buf_a = NULL;
+  GeglTileBackend *backend_a = NULL;
+  GeglRectangle    roi = {0, 0, 128, 128};
+
+  tmpdir = g_dir_make_tmp ("test-backend-file-XXXXXX", NULL);
+  g_return_val_if_fail (tmpdir, FALSE);
+
+  buf_a_path = g_build_filename (tmpdir, "buf_a.gegl", NULL);
+
+  buf_a = g_object_new (GEGL_TYPE_BUFFER,
+                        "format", babl_format ("R'G'B'A u8"),
+                        "path", buf_a_path,
+                        "x", roi.x,
+                        "y", roi.y,
+                        "width", roi.width,
+                        "height", roi.height,
+                        NULL);
+
+  g_object_get (buf_a,
+                "path", &buf_a_real_path,
+                "backend", &backend_a,
+                NULL);
+
+  if (!GEGL_IS_TILE_BACKEND_FILE (backend_a))
+    {
+      printf ("Buffer did not use the file backend.\n");
+      result = FALSE;
+    }
+
+  if (g_strcmp0 (buf_a_path, buf_a_real_path))
+    {
+      printf ("Paths do not match:\n%s\n%s\n",
+              buf_a_path,
+              buf_a_real_path);
+      result = FALSE;
+    }
+
+  g_object_unref (buf_a);
+  g_object_unref (backend_a);
+  g_free (buf_a_real_path);
+
+  g_unlink (buf_a_path);
+  g_remove (tmpdir);
+
+  g_free (tmpdir);
+  g_free (buf_a_path);
+
+  return result;
+}
+
+static gboolean
+test_buffer_path_from_backend (void)
+{
+  gboolean         result = TRUE;
+  gchar           *tmpdir = NULL;
+  gchar           *buf_a_path = NULL;
+  gchar           *buf_a_real_path = NULL;
+  GeglBuffer      *buf_a = NULL;
+  GeglTileBackend *backend_a = NULL;
+  GeglRectangle    roi = {0, 0, 128, 128};
+
+  tmpdir = g_dir_make_tmp ("test-backend-file-XXXXXX", NULL);
+  g_return_val_if_fail (tmpdir, FALSE);
+
+  buf_a_path = g_build_filename (tmpdir, "buf_a.gegl", NULL);
+
+  backend_a = g_object_new (GEGL_TYPE_TILE_BACKEND_FILE,
+                            "tile-width",  128,
+                            "tile-height", 64,
+                            "format",      babl_format ("R'G'B'A u8"),
+                            "path",        buf_a_path,
+                            NULL);
+
+  buf_a = g_object_new (GEGL_TYPE_BUFFER,
+                        "backend", backend_a,
+                        "x", roi.x,
+                        "y", roi.y,
+                        "width", roi.width,
+                        "height", roi.height,
+                        NULL);
+
+  g_object_unref (backend_a);
+  backend_a = NULL;
+
+  g_object_get (buf_a,
+                "path", &buf_a_real_path,
+                "backend", &backend_a,
+                NULL);
+
+  if (!GEGL_IS_TILE_BACKEND_FILE (backend_a))
+    {
+      printf ("Buffer did not use the file backend.\n");
+      result = FALSE;
+    }
+
+  if (g_strcmp0 (buf_a_path, buf_a_real_path))
+    {
+      printf ("Paths do not match:\n%s\n%s\n",
+              buf_a_path,
+              buf_a_real_path);
+      result = FALSE;
+    }
+
+  g_object_unref (buf_a);
+  g_free (buf_a_real_path);
+
+  g_unlink (buf_a_path);
+  g_remove (tmpdir);
+
+  g_free (tmpdir);
+  g_free (buf_a_path);
+
+  return result;
+}
+
+#define RUN_TEST(test_name) \
+{ \
+  if (test_name()) \
+    { \
+      printf ("" #test_name " ... PASS\n"); \
+      tests_passed++; \
+    } \
+  else \
+    { \
+      printf ("" #test_name " ... FAIL\n"); \
+      tests_failed++; \
+    } \
+  tests_run++; \
+}
+
+int main(int argc, char **argv)
+{
+  gint tests_run    = 0;
+  gint tests_passed = 0;
+  gint tests_failed = 0;
+
+  gegl_init(0, NULL);
+  g_object_set(G_OBJECT(gegl_config()),
+               "swap", "RAM",
+               "use-opencl", FALSE,
+               NULL);
+
+  RUN_TEST (test_buffer_path)
+  RUN_TEST (test_buffer_path_from_backend)
+
+  gegl_exit();
+
+  if (tests_passed == tests_run)
+    return 0;
+  return -1;
+
+  return 0;
+}