mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Samuel Susla
138ade0117
Summary: Adding 2 `transform*rect` and `transform*size` operations. Changelog: [Internal] Reviewed By: JoshuaGross Differential Revision: D20304247 fbshipit-source-id: 7bde67c96a21ce15e9da0464bcfccc61ab8fe13d
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <react/graphics/Transform.h>
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#include <gtest/gtest.h>
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using namespace facebook::react;
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TEST(TransformTest, transformingSize) {
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auto size = facebook::react::Size{100, 200};
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auto scaledSize = size * Transform::Scale(0.5, 0.5, 1);
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EXPECT_EQ(scaledSize.width, 50);
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EXPECT_EQ(scaledSize.height, 100);
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}
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TEST(TransformTest, transformingPoint) {
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auto point = facebook::react::Point{100, 200};
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auto translatedPoint = point * Transform::Translate(-50, -100, 0);
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EXPECT_EQ(translatedPoint.x, 50);
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EXPECT_EQ(translatedPoint.y, 100);
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}
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TEST(TransformTest, transformingRect) {
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auto point = facebook::react::Point{100, 200};
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auto size = facebook::react::Size{300, 400};
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auto rect = facebook::react::Rect{point, size};
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auto transformedRect = rect * Transform::Scale(0.5, 0.5, 1);
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EXPECT_EQ(transformedRect.origin.x, 175);
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EXPECT_EQ(transformedRect.origin.y, 300);
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EXPECT_EQ(transformedRect.size.width, 150);
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EXPECT_EQ(transformedRect.size.height, 200);
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}
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