Adding Blink-side 3d Box and Bounds calculations to TransformOperations

Source/platform/geometry/FloatBoxTest.cpp

Index: Source/platform/geometry/FloatBoxTest.cpp
diff --git a/Source/platform/geometry/FloatBoxTest.cpp b/Source/platform/geometry/FloatBoxTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..331761487e313eb2add324982cdb054f8d2e2ba8
--- /dev/null
+++ b/Source/platform/geometry/FloatBoxTest.cpp
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+/*
+ * Copyright (C) 2014 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES,:tabnew INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "platform/geometry/FloatBox.h"
+
+#include "platform/geometry/FloatBoxTestHelpers.h"
+
+#include <gtest/gtest.h>
+
+using namespace WebCore;
+
+namespace {
+
+TEST(FloatBoxTest, SimpleCreationTest)
+{
+    FloatBox box(1, 2, 3, 4, 5, 6);
+    EXPECT_EQ(1, box.x());
+    EXPECT_EQ(2, box.y());
+    EXPECT_EQ(3, box.z());
+    EXPECT_EQ(4, box.width());
+    EXPECT_EQ(5, box.height());
+    EXPECT_EQ(6, box.depth());
+    EXPECT_EQ(5, box.right());
+    EXPECT_EQ(7, box.bottom());
+    EXPECT_EQ(9, box.front());
+}
+
+TEST(FloatBoxTest, PositionTest)
+{
+    FloatBox box(0, 0, 0, 4, 4, 4);
+    box.move(FloatPoint3D(1, 2, 3));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(1, 2, 3, 4, 4, 4), box);
+    box.setOrigin(FloatPoint3D(-1, -2, -3));
+    box.move(FloatPoint3D(-1, -2, -3));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(-2, -4, -6, 4, 4, 4), box);
+}
+
+TEST(FloatBoxTest, CopyTest)
+{
+    FloatBox box(1, 2, 3, 4, 4, 4);
+    FloatBox box2(box);
+    EXPECT_EQ(box, box2);
+    box.setSize(FloatPoint3D(3, 3, 3));
+    EXPECT_NE(box, box2);
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(1, 2, 3, 3, 3, 3), box);
+}
+
+TEST(FloatBoxTest, FlattenTest)
+{
+    FloatBox box(1, 2, 3, 4, 4, 4);
+    box.flatten();
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(1, 2, 0, 4, 4, 0), box);
+}
+
+TEST(FloatBoxTest, ExpandTests)
+{
+    FloatBox box;
+    box.expandTo(FloatPoint3D(10, -3, 2));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(0, -3, 0, 10, 3, 2), box);
+
+    box.expandTo(FloatPoint3D(-15, 6, 8));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(-15, -3, 0, 25, 9, 8), box);
+
+    box = FloatBox();
+    box.expandTo(FloatPoint3D(-3, 6, 9), FloatPoint3D(-2, 10, 11));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(-3, 0, 0, 3, 10, 11), box);
+
+    box = FloatBox();
+    box.expandTo(FloatBox(-10, -10, -10, 3, 30, 40));
+    box.expandTo(FloatBox(-11, 3, 50, 10, 15, 1));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(-11, -10, -10, 11, 30, 61), box);
+}
+
+TEST(FloatBoxTest, UnionTest)
+{
+    FloatBox box;
+    EXPECT_TRUE(box.isEmpty());
+    FloatBox unionedBox(3, 5, 6, 5, 3, 9);
+    box.unionBounds(unionedBox);
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, unionedBox, box);
+
+    box.unionBounds(FloatBox());
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, unionedBox, box);
+
+    box.unionBounds(FloatBox(0, 0, 0, 1, 1, 1));
+    EXPECT_PRED_FORMAT2(FloatBoxTest::AssertAlmostEqual, FloatBox(0, 0, 0, 8, 8, 15), box);
+}
+
+TEST(FloatBoxTest, EmptyBoxTest)
+{
+    FloatBox box;
+    EXPECT_TRUE(box.isEmpty());
+    box.expandTo(FloatPoint3D(1, 0, 0));
+    EXPECT_TRUE(box.isEmpty());
+    box.expandTo(FloatPoint3D(0, 1, 0));
+    EXPECT_FALSE(box.isEmpty());
+}
+
+}