Index: third_party/WebKit/Source/core/layout/ng/ng_block_child_iterator_test.cc |
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_block_child_iterator_test.cc b/third_party/WebKit/Source/core/layout/ng/ng_block_child_iterator_test.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..800c5b4d4892c46cfe860f9c3ab57a18bc2fdd37 |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/layout/ng/ng_block_child_iterator_test.cc |
@@ -0,0 +1,128 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "core/layout/ng/ng_block_child_iterator.h" |
+ |
+#include "core/layout/LayoutTestHelper.h" |
+#include "core/layout/ng/ng_block_break_token.h" |
+#include "core/layout/ng/ng_block_node.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace blink { |
+namespace { |
+ |
+class NGBlockChildIteratorTest : public RenderingTest {}; |
+ |
+TEST_F(NGBlockChildIteratorTest, NullFirstChild) { |
+ NGBlockChildIterator iterator(nullptr, nullptr); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator.NextChild()); |
+} |
+ |
+TEST_F(NGBlockChildIteratorTest, NoBreakToken) { |
+ setBodyInnerHTML(R"HTML( |
+ <div id='child1'></div> |
+ <div id='child2'></div> |
+ <div id='child3'></div> |
+ )HTML"); |
+ NGLayoutInputNode* node1 = |
+ new NGBlockNode(toLayoutBlockFlow(getLayoutObjectByElementId("child1"))); |
+ NGLayoutInputNode* node2 = node1->NextSibling(); |
+ NGLayoutInputNode* node3 = node2->NextSibling(); |
+ |
+ // The iterator should loop through three children. |
+ NGBlockChildIterator iterator(node1, nullptr); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node1, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node2, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node3, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator.NextChild()); |
+} |
+ |
+TEST_F(NGBlockChildIteratorTest, BreakTokenWithFinishedChild) { |
+ setBodyInnerHTML(R"HTML( |
+ <div id='container'> |
+ <div id='child1'></div> |
+ <div id='child2'></div> |
+ <div id='child3'></div> |
+ </div> |
+ )HTML"); |
+ NGBlockNode* container = new NGBlockNode( |
+ toLayoutBlockFlow(getLayoutObjectByElementId("container"))); |
+ NGLayoutInputNode* node1 = container->FirstChild(); |
+ NGLayoutInputNode* node2 = node1->NextSibling(); |
+ NGLayoutInputNode* node3 = node2->NextSibling(); |
+ |
+ HeapVector<Member<NGBreakToken>> child_break_tokens; |
+ child_break_tokens.push_back(new NGBlockBreakToken(toNGBlockNode(node1))); |
+ NGBlockBreakToken* parent_token = |
+ new NGBlockBreakToken(container, LayoutUnit(50), child_break_tokens); |
+ |
+ // The iterator should loop through two children. |
+ NGBlockChildIterator iterator(node1, parent_token); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node2, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node3, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator.NextChild()); |
+ |
+ child_break_tokens.push_back(new NGBlockBreakToken(toNGBlockNode(node2))); |
+ parent_token = |
+ new NGBlockBreakToken(container, LayoutUnit(50), child_break_tokens); |
+ |
+ // The iterator should loop through two children. |
+ NGBlockChildIterator iterator2(node1, parent_token); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node1, nullptr), iterator2.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node3, nullptr), iterator2.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator2.NextChild()); |
+} |
+ |
+TEST_F(NGBlockChildIteratorTest, BreakTokenWithUnFinishedChild) { |
+ setBodyInnerHTML(R"HTML( |
+ <div id='container'> |
+ <div id='child1'></div> |
+ <div id='child2'></div> |
+ <div id='child3'></div> |
+ </div> |
+ )HTML"); |
+ NGBlockNode* container = new NGBlockNode( |
+ toLayoutBlockFlow(getLayoutObjectByElementId("container"))); |
+ NGLayoutInputNode* node1 = container->FirstChild(); |
+ NGLayoutInputNode* node2 = node1->NextSibling(); |
+ NGLayoutInputNode* node3 = node2->NextSibling(); |
+ |
+ HeapVector<Member<NGBreakToken>> child_break_tokens; |
+ NGBreakToken* child_token = new NGBlockBreakToken( |
+ toNGBlockNode(node1), LayoutUnit(), child_break_tokens); |
+ child_break_tokens.push_back(child_token); |
+ NGBlockBreakToken* parent_token = |
+ new NGBlockBreakToken(container, LayoutUnit(50), child_break_tokens); |
+ |
+ // The iterator should loop through three children, one with a break token. |
+ NGBlockChildIterator iterator(node1, parent_token); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node1, child_token), |
+ iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node2, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node3, nullptr), iterator.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator.NextChild()); |
+ |
+ child_token = new NGBlockBreakToken(toNGBlockNode(node2), LayoutUnit(), |
+ child_break_tokens); |
+ child_break_tokens.push_back(child_token); |
+ parent_token = |
+ new NGBlockBreakToken(container, LayoutUnit(50), child_break_tokens); |
+ |
+ // The iterator should loop through three children, one with a break token. |
+ NGBlockChildIterator iterator2(node1, parent_token); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node1, nullptr), iterator2.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node2, child_token), |
+ iterator2.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(node3, nullptr), iterator2.NextChild()); |
+ ASSERT_EQ(NGBlockChildIterator::Entry(nullptr, nullptr), |
+ iterator2.NextChild()); |
+} |
+ |
+} // namespace |
+} // namespace blink |