68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
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/**
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* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#include <CSSLayout/CSSLayout.h>
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#include <gtest/gtest.h>
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TEST(CSSLayoutTest, dirty_propagation) {
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const CSSNodeRef root = CSSNodeNew();
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CSSNodeStyleSetAlignItems(root, CSSAlignFlexStart);
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CSSNodeStyleSetWidth(root, 100);
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CSSNodeStyleSetHeight(root, 100);
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const CSSNodeRef root_child0 = CSSNodeNew();
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CSSNodeStyleSetWidth(root_child0, 50);
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CSSNodeStyleSetHeight(root_child0, 20);
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CSSNodeInsertChild(root, root_child0, 0);
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const CSSNodeRef root_child1 = CSSNodeNew();
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CSSNodeStyleSetWidth(root_child1, 50);
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CSSNodeStyleSetHeight(root_child1, 20);
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CSSNodeInsertChild(root, root_child1, 1);
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CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);
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CSSNodeStyleSetWidth(root_child0, 20);
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EXPECT_TRUE(CSSNodeIsDirty(root_child0));
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EXPECT_FALSE(CSSNodeIsDirty(root_child1));
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EXPECT_TRUE(CSSNodeIsDirty(root));
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CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);
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EXPECT_FALSE(CSSNodeIsDirty(root_child0));
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EXPECT_FALSE(CSSNodeIsDirty(root_child1));
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EXPECT_FALSE(CSSNodeIsDirty(root));
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}
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TEST(CSSLayoutTest, dirty_propagation_only_if_prop_changed) {
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const CSSNodeRef root = CSSNodeNew();
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CSSNodeStyleSetAlignItems(root, CSSAlignFlexStart);
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CSSNodeStyleSetWidth(root, 100);
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CSSNodeStyleSetHeight(root, 100);
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const CSSNodeRef root_child0 = CSSNodeNew();
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CSSNodeStyleSetWidth(root_child0, 50);
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CSSNodeStyleSetHeight(root_child0, 20);
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CSSNodeInsertChild(root, root_child0, 0);
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const CSSNodeRef root_child1 = CSSNodeNew();
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CSSNodeStyleSetWidth(root_child1, 50);
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CSSNodeStyleSetHeight(root_child1, 20);
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CSSNodeInsertChild(root, root_child1, 1);
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CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);
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CSSNodeStyleSetWidth(root_child0, 50);
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EXPECT_FALSE(CSSNodeIsDirty(root_child0));
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EXPECT_FALSE(CSSNodeIsDirty(root_child1));
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EXPECT_FALSE(CSSNodeIsDirty(root));
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}
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