mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
e602b22bfb
Summary: Subject. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D20462834 fbshipit-source-id: 13e3c3b45537e22002b948f967a2576bc52145e8
106 lines
4.0 KiB
C++
106 lines
4.0 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 <gtest/gtest.h>
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#include <react/components/scrollview/ScrollViewComponentDescriptor.h>
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#include <react/components/text/ParagraphComponentDescriptor.h>
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#include <react/components/text/RawTextComponentDescriptor.h>
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#include <react/components/text/TextComponentDescriptor.h>
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#include <react/components/view/ViewComponentDescriptor.h>
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#include <react/element/Element.h>
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#include <react/element/testUtils.h>
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using namespace facebook::react;
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TEST(traitCastTest, testOne) {
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auto builder = simpleComponentBuilder();
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auto viewShadowNode = std::shared_ptr<ViewShadowNode>{};
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auto scrollViewShadowNode = std::shared_ptr<ScrollViewShadowNode>{};
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auto paragraphShadowNode = std::shared_ptr<ParagraphShadowNode>{};
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auto textShadowNode = std::shared_ptr<TextShadowNode>{};
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auto rawTextShadowNode = std::shared_ptr<RawTextShadowNode>{};
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// clang-format off
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auto element =
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Element<ScrollViewShadowNode>()
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.reference(scrollViewShadowNode)
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.children({
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Element<ParagraphShadowNode>()
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.reference(paragraphShadowNode)
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.children({
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Element<TextShadowNode>()
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.reference(textShadowNode),
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Element<RawTextShadowNode>()
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.reference(rawTextShadowNode)
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}),
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Element<ViewShadowNode>()
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.reference(viewShadowNode),
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});
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// clang-format on
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auto rootShadowNode = builder.build(element);
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// Casting `nullptr` returns `nullptrs`.
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EXPECT_FALSE(traitCast<LayoutableShadowNode const *>(nullptr));
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EXPECT_FALSE(traitCast<YogaLayoutableShadowNode const *>(nullptr));
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// `ViewShadowNode` is `LayoutableShadowNode` and `YogaLayoutableShadowNode`.
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EXPECT_TRUE(traitCast<LayoutableShadowNode const *>(viewShadowNode.get()));
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EXPECT_TRUE(
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traitCast<YogaLayoutableShadowNode const *>(viewShadowNode.get()));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<LayoutableShadowNode const &>(*viewShadowNode));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<YogaLayoutableShadowNode const &>(*viewShadowNode));
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// `ScrollViewShadowNode` is `LayoutableShadowNode` and
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// `YogaLayoutableShadowNode`.
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EXPECT_TRUE(
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traitCast<LayoutableShadowNode const *>(scrollViewShadowNode.get()));
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EXPECT_TRUE(
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traitCast<YogaLayoutableShadowNode const *>(scrollViewShadowNode.get()));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<LayoutableShadowNode const &>(*scrollViewShadowNode));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<YogaLayoutableShadowNode const &>(*scrollViewShadowNode));
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// `ParagraphShadowNode` is `LayoutableShadowNode` and
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// `YogaLayoutableShadowNode`.
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EXPECT_TRUE(
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traitCast<LayoutableShadowNode const *>(paragraphShadowNode.get()));
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EXPECT_TRUE(
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traitCast<YogaLayoutableShadowNode const *>(paragraphShadowNode.get()));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<LayoutableShadowNode const &>(*paragraphShadowNode));
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EXPECT_NO_FATAL_FAILURE(
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traitCast<YogaLayoutableShadowNode const &>(*paragraphShadowNode));
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// `TextShadowNode` is *not* `LayoutableShadowNode` nor
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// `YogaLayoutableShadowNode`.
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EXPECT_FALSE(traitCast<LayoutableShadowNode const *>(textShadowNode.get()));
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EXPECT_FALSE(
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traitCast<YogaLayoutableShadowNode const *>(textShadowNode.get()));
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EXPECT_DEATH_IF_SUPPORTED(
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traitCast<LayoutableShadowNode const &>(*textShadowNode), "");
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EXPECT_DEATH_IF_SUPPORTED(
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traitCast<YogaLayoutableShadowNode const &>(*textShadowNode), "");
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// `RawTextShadowNode` is *not* `LayoutableShadowNode` nor
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// `YogaLayoutableShadowNode`.
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EXPECT_FALSE(
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traitCast<LayoutableShadowNode const *>(rawTextShadowNode.get()));
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EXPECT_FALSE(
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traitCast<YogaLayoutableShadowNode const *>(rawTextShadowNode.get()));
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EXPECT_DEATH_IF_SUPPORTED(
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traitCast<LayoutableShadowNode const &>(*rawTextShadowNode), "");
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EXPECT_DEATH_IF_SUPPORTED(
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traitCast<YogaLayoutableShadowNode const &>(*rawTextShadowNode), "");
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}
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