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// Copyright 2015 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/MultiColumnFragmentainerGroup.h"
#include "core/layout/LayoutMultiColumnFlowThread.h"
#include "core/layout/LayoutMultiColumnSet.h"
#include "core/layout/LayoutTestHelper.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
namespace {
class MultiColumnFragmentainerGroupTest : public RenderingTest {
public:
MultiColumnFragmentainerGroupTest()
: m_flowThread(nullptr), m_columnSet(nullptr) {}
protected:
void SetUp() override;
void TearDown() override;
LayoutMultiColumnSet& columnSet() { return *m_columnSet; }
static int groupCount(const MultiColumnFragmentainerGroupList&);
private:
LayoutMultiColumnFlowThread* m_flowThread;
LayoutMultiColumnSet* m_columnSet;
};
void MultiColumnFragmentainerGroupTest::SetUp() {
RenderingTest::SetUp();
RefPtr<ComputedStyle> style = ComputedStyle::create();
m_flowThread =
LayoutMultiColumnFlowThread::createAnonymous(document(), *style.get());
m_columnSet = LayoutMultiColumnSet::createAnonymous(*m_flowThread,
*m_flowThread->style());
}
void MultiColumnFragmentainerGroupTest::TearDown() {
m_columnSet->destroy();
m_flowThread->destroy();
RenderingTest::TearDown();
}
int MultiColumnFragmentainerGroupTest::groupCount(
const MultiColumnFragmentainerGroupList& groupList) {
int count = 0;
for (const auto& dummyGroup : groupList) {
(void)dummyGroup;
count++;
}
return count;
}
TEST_F(MultiColumnFragmentainerGroupTest, Create) {
MultiColumnFragmentainerGroupList groupList(columnSet());
EXPECT_EQ(groupCount(groupList), 1);
}
TEST_F(MultiColumnFragmentainerGroupTest, DeleteExtra) {
MultiColumnFragmentainerGroupList groupList(columnSet());
EXPECT_EQ(groupCount(groupList), 1);
groupList.deleteExtraGroups();
EXPECT_EQ(groupCount(groupList), 1);
}
TEST_F(MultiColumnFragmentainerGroupTest, AddThenDeleteExtra) {
MultiColumnFragmentainerGroupList groupList(columnSet());
EXPECT_EQ(groupCount(groupList), 1);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 2);
groupList.deleteExtraGroups();
EXPECT_EQ(groupCount(groupList), 1);
}
TEST_F(MultiColumnFragmentainerGroupTest,
AddTwoThenDeleteExtraThenAddThreeThenDeleteExtra) {
MultiColumnFragmentainerGroupList groupList(columnSet());
EXPECT_EQ(groupCount(groupList), 1);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 2);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 3);
groupList.deleteExtraGroups();
EXPECT_EQ(groupCount(groupList), 1);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 2);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 3);
groupList.addExtraGroup();
EXPECT_EQ(groupCount(groupList), 4);
groupList.deleteExtraGroups();
EXPECT_EQ(groupCount(groupList), 1);
}
} // anonymous namespace
} // namespace blink
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