1 files changed, 43 insertions, 0 deletions
diff --git a/tests/AAClipTest.cpp b/tests/AAClipTest.cpp
new file mode 100644
index 0000000000..a66e69a5be
--- /dev/null
+++ b/tests/AAClipTest.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "Test.h"
+#include "SkAAClip.h"
+#include "SkPath.h"
+
+static void test_trim_bounds(skiatest::Reporter* reporter) {
+    SkPath path;
+    SkAAClip clip;
+    const int height = 40;
+    const SkScalar sheight = SkIntToScalar(height);
+
+    path.addOval(SkRect::MakeWH(sheight, sheight));
+    REPORTER_ASSERT(reporter, sheight == path.getBounds().height());
+    clip.setPath(path, NULL, true);
+    REPORTER_ASSERT(reporter, height == clip.getBounds().height());
+
+    // this is the trimmed height of this cubic (with aa). The critical thing
+    // for this test is that it is less than height, which represents just
+    // the bounds of the path's control-points.
+    //
+    // This used to fail until we tracked the MinY in the BuilderBlitter.
+    //
+    const int teardrop_height = 12;
+    path.reset();
+    path.moveTo(0, 20);
+    path.cubicTo(40, 40, 40, 0, 0, 20);
+    REPORTER_ASSERT(reporter, sheight == path.getBounds().height());
+    clip.setPath(path, NULL, true);
+    REPORTER_ASSERT(reporter, teardrop_height == clip.getBounds().height());
+}
+
+static void TestAAClip(skiatest::Reporter* reporter) {
+    test_trim_bounds(reporter);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("AAClip", AAClipTestClass, TestAAClip)