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-rw-r--r--gfx/tests/gtest/gfxSurfaceRefCountTest.cpp151
1 files changed, 151 insertions, 0 deletions
diff --git a/gfx/tests/gtest/gfxSurfaceRefCountTest.cpp b/gfx/tests/gtest/gfxSurfaceRefCountTest.cpp
new file mode 100644
index 000000000..0bbd2361d
--- /dev/null
+++ b/gfx/tests/gtest/gfxSurfaceRefCountTest.cpp
@@ -0,0 +1,151 @@
+#include <stdio.h>
+
+#include "gtest/gtest.h"
+
+#include "gfxASurface.h"
+#include "gfxImageSurface.h"
+
+#include "cairo.h"
+
+int
+GetASurfaceRefCount(gfxASurface *s) {
+ NS_ADDREF(s);
+ return s->Release();
+}
+
+int
+CheckInt (int value, int expected) {
+ if (value != expected) {
+ fprintf (stderr, "Expected %d got %d\n", expected, value);
+ return 1;
+ }
+
+ return 0;
+}
+
+int
+CheckPointer (void *value, void *expected) {
+ if (value != expected) {
+ fprintf (stderr, "Expected %p got %p\n", expected, value);
+ return 1;
+ }
+
+ return 0;
+}
+
+static cairo_user_data_key_t destruction_key;
+void
+SurfaceDestroyNotifier (void *data) {
+ *(int *)data = 1;
+}
+
+int
+TestNewSurface () {
+ int failures = 0;
+ int destroyed = 0;
+
+ RefPtr<gfxASurface> s = new gfxImageSurface (mozilla::gfx::IntSize(10, 10), SurfaceFormat::A8R8G8B8_UINT32);
+ cairo_surface_t *cs = s->CairoSurface();
+
+ cairo_surface_set_user_data (cs, &destruction_key, &destroyed, SurfaceDestroyNotifier);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 1);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 1);
+ failures += CheckInt (destroyed, 0);
+
+ cairo_surface_reference(cs);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 2);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 2);
+ failures += CheckInt (destroyed, 0);
+
+ gfxASurface *savedWrapper = s.get();
+
+ s = nullptr;
+
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 1);
+ failures += CheckInt (destroyed, 0);
+
+ s = gfxASurface::Wrap(cs);
+
+ failures += CheckPointer (s.get(), savedWrapper);
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 2);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 2);
+ failures += CheckInt (destroyed, 0);
+
+ cairo_surface_destroy(cs);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 1);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 1);
+ failures += CheckInt (destroyed, 0);
+
+ s = nullptr;
+
+ failures += CheckInt (destroyed, 1);
+
+ return failures;
+}
+
+int
+TestExistingSurface () {
+ int failures = 0;
+ int destroyed = 0;
+
+ cairo_surface_t *cs = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 10, 10);
+
+ cairo_surface_set_user_data (cs, &destruction_key, &destroyed, SurfaceDestroyNotifier);
+
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 1);
+ failures += CheckInt (destroyed, 0);
+
+ RefPtr<gfxASurface> s = gfxASurface::Wrap(cs);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 2);
+
+ cairo_surface_reference(cs);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 3);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 3);
+ failures += CheckInt (destroyed, 0);
+
+ gfxASurface *savedWrapper = s.get();
+
+ s = nullptr;
+
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 2);
+ failures += CheckInt (destroyed, 0);
+
+ s = gfxASurface::Wrap(cs);
+
+ failures += CheckPointer (s.get(), savedWrapper);
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 3);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 3);
+ failures += CheckInt (destroyed, 0);
+
+ cairo_surface_destroy(cs);
+
+ failures += CheckInt (GetASurfaceRefCount(s.get()), 2);
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 2);
+ failures += CheckInt (destroyed, 0);
+
+ s = nullptr;
+
+ failures += CheckInt (cairo_surface_get_reference_count(cs), 1);
+ failures += CheckInt (destroyed, 0);
+
+ cairo_surface_destroy(cs);
+
+ failures += CheckInt (destroyed, 1);
+
+ return failures;
+}
+
+TEST(Gfx, SurfaceRefCount) {
+ int fail;
+
+ fail = TestNewSurface();
+ EXPECT_TRUE(fail == 0) << "TestNewSurface: " << fail << " failures";
+ fail = TestExistingSurface();
+ EXPECT_TRUE(fail == 0) << "TestExistingSurface: " << fail << " failures";
+}
+