root/Source/core/css/CSSCalculationValueTest.cpp

DEFINITIONS

1. testExpression
2. TEST
3. TEST
4. TEST
5. TEST

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#include "config.h"
#include "core/css/CSSCalculationValue.h"

#include "core/css/CSSPrimitiveValue.h"
#include "core/css/CSSToLengthConversionData.h"
#include "core/rendering/style/RenderStyle.h"
#include "core/rendering/style/StyleInheritedData.h"

#include <gtest/gtest.h>

using namespace WebCore;

namespace {

void testExpression(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> expression, const RenderStyle* style)
{
    EXPECT_TRUE(
        expression->equals(
            *CSSCalcValue::createExpressionNode(
                expression->toCalcValue(CSSToLengthConversionData(style, style, 0)).get(),
                style->effectiveZoom()).get()));
}

TEST(CSSCalculationValue, CreateExpressionNodeFromLength)
{
    RefPtr<RenderStyle> style = RenderStyle::create();
    RefPtrWillBeRawPtr<CSSCalcExpressionNode> expected = nullptr;
    RefPtrWillBeRawPtr<CSSCalcExpressionNode> actual = nullptr;

    expected = CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX), true);
    actual = CSSCalcValue::createExpressionNode(Length(10, WebCore::Fixed), style->effectiveZoom());
    EXPECT_TRUE(actual->equals(*expected.get()));

    expected = CSSCalcValue::createExpressionNode(
        CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX), true),
        CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(20, CSSPrimitiveValue::CSS_PX), true),
        CalcAdd);
    actual = CSSCalcValue::createExpressionNode(
        Length(CalculationValue::create(
            adoptPtr(new CalcExpressionBinaryOperation(
                adoptPtr(new CalcExpressionLength(Length(10, WebCore::Fixed))),
                adoptPtr(new CalcExpressionLength(Length(20, WebCore::Fixed))),
                CalcAdd)),
            ValueRangeAll)),
        style->effectiveZoom());
    EXPECT_TRUE(actual->equals(*expected.get()));

    expected = CSSCalcValue::createExpressionNode(
        CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(30, CSSPrimitiveValue::CSS_PX), true),
        CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(40, CSSPrimitiveValue::CSS_NUMBER), true),
        CalcMultiply);
    actual = CSSCalcValue::createExpressionNode(
        Length(CalculationValue::create(
            adoptPtr(new CalcExpressionBinaryOperation(
                adoptPtr(new CalcExpressionLength(Length(30, WebCore::Fixed))),
                adoptPtr(new CalcExpressionNumber(40)),
                CalcMultiply)),
            ValueRangeAll)),
        style->effectiveZoom());
    EXPECT_TRUE(actual->equals(*expected.get()));

    expected = CSSCalcValue::createExpressionNode(
        CSSCalcValue::createExpressionNode(
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(50, CSSPrimitiveValue::CSS_PX), true),
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(0.25, CSSPrimitiveValue::CSS_NUMBER), false),
            CalcMultiply),
        CSSCalcValue::createExpressionNode(
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(60, CSSPrimitiveValue::CSS_PX), true),
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(0.75, CSSPrimitiveValue::CSS_NUMBER), false),
            CalcMultiply),
        CalcAdd);
    actual = CSSCalcValue::createExpressionNode(
        Length(CalculationValue::create(
            adoptPtr(new CalcExpressionBlendLength(Length(50, WebCore::Fixed), Length(60, WebCore::Fixed), 0.75)),
            ValueRangeAll)),
        style->effectiveZoom());
    EXPECT_TRUE(actual->equals(*expected.get()));
}

TEST(CSSCalculationValue, CreateExpressionNodeFromLengthFromExpressionNode)
{
    RefPtr<RenderStyle> style = RenderStyle::createDefaultStyle();
    style->setEffectiveZoom(5);

    testExpression(
        CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX), true),
        style.get());

    testExpression(
        CSSCalcValue::createExpressionNode(
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(10, CSSPrimitiveValue::CSS_PX), true),
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(20, CSSPrimitiveValue::CSS_PX), true),
            CalcAdd),
        style.get());

    testExpression(
        CSSCalcValue::createExpressionNode(
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(30, CSSPrimitiveValue::CSS_PX), true),
            CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(40, CSSPrimitiveValue::CSS_NUMBER), true),
            CalcMultiply),
        style.get());

    testExpression(
        CSSCalcValue::createExpressionNode(
            CSSCalcValue::createExpressionNode(
                CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(50, CSSPrimitiveValue::CSS_PX), true),
                CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(0.25, CSSPrimitiveValue::CSS_NUMBER), false),
                CalcMultiply),
            CSSCalcValue::createExpressionNode(
                CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(60, CSSPrimitiveValue::CSS_PX), true),
                CSSCalcValue::createExpressionNode(CSSPrimitiveValue::create(0.75, CSSPrimitiveValue::CSS_NUMBER), false),
                CalcMultiply),
            CalcAdd),
        style.get());
}

TEST(CSSCalculationValue, RefCount)
{
    RefPtr<CalculationValue> calc = CalculationValue::create(adoptPtr(new CalcExpressionNumber(40)), ValueRangeAll);
    Length lengthA(calc);
    EXPECT_EQ(calc->refCount(), 2);

    Length lengthB;
    lengthB = lengthA;
    EXPECT_EQ(calc->refCount(), 3);

    Length lengthC(calc);
    lengthC = lengthA;
    EXPECT_EQ(calc->refCount(), 4);

    Length lengthD(CalculationValue::create(adoptPtr(new CalcExpressionNumber(40)), ValueRangeAll));
    lengthD = lengthA;
    EXPECT_EQ(calc->refCount(), 5);
}

TEST(CSSCalculationValue, RefCountLeak)
{
    RefPtr<CalculationValue> calc = CalculationValue::create(adoptPtr(new CalcExpressionNumber(40)), ValueRangeAll);
    Length lengthA(calc);

    Length lengthB = lengthA;
    for (int i = 0; i < 100; ++i)
        lengthB = lengthA;
    EXPECT_EQ(calc->refCount(), 3);

    Length lengthC(lengthA);
    for (int i = 0; i < 100; ++i)
        lengthC = lengthA;
    EXPECT_EQ(calc->refCount(), 4);

    Length lengthD(calc);
    for (int i = 0; i < 100; ++i)
        lengthD = lengthA;
    EXPECT_EQ(calc->refCount(), 5);

    lengthD = Length();
    EXPECT_EQ(calc->refCount(), 4);
}

}