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// Copyright 2014 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 "config.h"
#include "core/css/parser/SizesCalcParser.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/MediaValuesCached.h"
#include "core/css/StylePropertySet.h"
#include "core/css/parser/MediaQueryTokenizer.h"
#include <gtest/gtest.h>
namespace WebCore {
struct TestCase {
const char* input;
const unsigned output;
const bool valid;
const bool dontRunInCSSCalc;
};
static void initLengthArray(CSSLengthArray& lengthArray)
{
lengthArray.resize(CSSPrimitiveValue::LengthUnitTypeCount);
for (size_t i = 0; i < CSSPrimitiveValue::LengthUnitTypeCount; ++i)
lengthArray.at(i) = 0;
}
static void verifyCSSCalc(String text, double value, bool valid, unsigned fontSize, unsigned viewportWidth, unsigned viewportHeight)
{
CSSLengthArray lengthArray;
initLengthArray(lengthArray);
RefPtr<MutableStylePropertySet> propertySet = MutableStylePropertySet::create();
propertySet->setProperty(CSSPropertyLeft, text);
RefPtrWillBeRawPtr<CSSValue> cssValue = propertySet->getPropertyCSSValue(CSSPropertyLeft);
CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(cssValue.get());
if (primitiveValue)
primitiveValue->accumulateLengthArray(lengthArray);
else
ASSERT_EQ(valid, false);
int length = lengthArray.at(CSSPrimitiveValue::UnitTypePixels);
length += lengthArray.at(CSSPrimitiveValue::UnitTypeFontSize) * fontSize;
length += lengthArray.at(CSSPrimitiveValue::UnitTypeViewportWidth) * viewportWidth / 100.0;
length += lengthArray.at(CSSPrimitiveValue::UnitTypeViewportHeight) * viewportHeight / 100.0;
ASSERT_EQ(value, length);
}
TEST(SizesCalcParserTest, Basic)
{
TestCase testCases[] = {
{"calc(500px + 10em)", 660, true, false},
{"calc(500px + 2 * 10em)", 820, true, false},
{"calc(500px + 2*10em)", 820, true, false},
{"calc(500px + 0.5*10em)", 580, true, false},
{"calc(500px + (0.5*10em + 13px))", 593, true, false},
{"calc(100vw + (0.5*10em + 13px))", 593, true, false},
{"calc(100vh + (0.5*10em + 13px))", 736, true, false},
{"calc(100vh + calc(0.5*10em + 13px))", 736, true, true}, // CSSCalculationValue does not parse internal "calc(".
{"calc(100vh + (50%*10em + 13px))", 0, false, false},
{"calc(50em+13px)", 0, false, false},
{"calc(50em-13px)", 0, false, false},
{"calc(500px + 10)", 0, false, false},
{"calc(500 + 10)", 0, false, false},
{"calc(500px + 10s)", 0, false, true}, // This test ASSERTs in CSSCalculationValue.
{"calc(500px + 1cm)", 537, true, false},
{"calc(500px - 10s)", 0, false, true}, // This test ASSERTs in CSSCalculationValue.
{"calc(500px - 1cm)", 462, true, false},
{"calc(50px*10)", 500, true, false},
{"calc(50px*10px)", 0, false, false},
{"calc(50px/10px)", 0, false, false},
{"calc(500px/10)", 50, true, false},
{"calc(500/10)", 0, false, false},
{"calc(500px/0.5)", 1000, true, false},
{"calc(500px/.5)", 1000, true, false},
{"calc(500/0)", 0, false, false},
{"calc(500px/0)", 0, false, false},
{"calc(-500px/10)", 0, true, true}, // CSSCalculationValue does not clamp negative values to 0.
{"calc(((4) * ((10px))))", 40, true, false},
{"calc(50px / 0)", 0, false, false},
{"calc(50px / (10 + 10))", 2, true, false},
{"calc(50px / (10 - 10))", 0, false, false},
{"calc(50px / (10 * 10))", 0, true, false},
{"calc(50px / (10 / 10))", 50, true, false},
{"calc(200px*)", 0, false, false},
{"calc(+ +200px)", 0, false, false},
{"calc()", 0, false, false},
{"calc(100px + + +100px)", 0, false, false},
{"calc(200px 200px)", 0, false, false},
{"calc(100px * * 2)", 0, false, false},
{"calc(100px @ 2)", 0, false, false},
{"calc(1 flim 2)", 0, false, false},
{"calc(100px @ 2)", 0, false, false},
{"calc(1 flim 2)", 0, false, false},
{"calc(1 flim (2))", 0, false, false},
{0, 0, true, false} // Do not remove the terminator line.
};
MediaValuesCached::MediaValuesCachedData data;
data.viewportWidth = 500;
data.viewportHeight = 643;
data.deviceWidth = 500;
data.deviceHeight = 643;
data.devicePixelRatio = 2.0;
data.colorBitsPerComponent = 24;
data.monochromeBitsPerComponent = 0;
data.pointer = MediaValues::MousePointer;
data.defaultFontSize = 16;
data.threeDEnabled = true;
data.scanMediaType = false;
data.screenMediaType = true;
data.printMediaType = false;
data.strictMode = true;
RefPtr<MediaValues> mediaValues = MediaValuesCached::create(data);
for (unsigned i = 0; testCases[i].input; ++i) {
Vector<MediaQueryToken> tokens;
MediaQueryTokenizer::tokenize(testCases[i].input, tokens);
unsigned output;
bool valid = SizesCalcParser::parse(tokens.begin(), tokens.end(), mediaValues, output);
ASSERT_EQ(testCases[i].valid, valid);
if (valid)
ASSERT_EQ(testCases[i].output, output);
}
for (unsigned i = 0; testCases[i].input; ++i) {
if (testCases[i].dontRunInCSSCalc)
continue;
verifyCSSCalc(testCases[i].input, testCases[i].output, testCases[i].valid, data.defaultFontSize, data.viewportWidth, data.viewportHeight);
}
}
} // namespace
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