sonyoss-vita-webkit/Tools/TestWebKitAPI/Tests/WTF/WTFString.cpp

/*
 * Copyright (C) 2012 Apple Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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#include "config.h"

#include <limits>
#include <wtf/MathExtras.h>
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>

namespace TestWebKitAPI {

TEST(WTF, StringCreationFromLiteral)
{
    String stringFromLiteral(ASCIILiteral("Explicit construction syntax"));
    ASSERT_EQ(strlen("Explicit construction syntax"), stringFromLiteral.length());
    ASSERT_TRUE(stringFromLiteral == "Explicit construction syntax");
    ASSERT_TRUE(stringFromLiteral.is8Bit());
    ASSERT_TRUE(stringFromLiteral.impl()->hasTerminatingNullCharacter());
    ASSERT_TRUE(String("Explicit construction syntax") == stringFromLiteral);

    String stringWithTemplate("Template Literal", String::ConstructFromLiteral);
    ASSERT_EQ(strlen("Template Literal"), stringWithTemplate.length());
    ASSERT_TRUE(stringWithTemplate == "Template Literal");
    ASSERT_TRUE(stringWithTemplate.is8Bit());
    ASSERT_TRUE(stringWithTemplate.impl()->hasTerminatingNullCharacter());
    ASSERT_TRUE(String("Template Literal") == stringWithTemplate);
}

TEST(WTF, StringASCII)
{
    CString output;

    // Null String.
    output = String().ascii();
    ASSERT_STREQ("", output.data());

    // Empty String.
    output = emptyString().ascii();
    ASSERT_STREQ("", output.data());

    // Regular String.
    output = String(ASCIILiteral("foobar")).ascii();
    ASSERT_STREQ("foobar", output.data());
}

static void testNumberToStringECMAScript(double number, const char* reference)
{
    CString numberString = String::numberToStringECMAScript(number).latin1();
    ASSERT_STREQ(reference, numberString.data());
}

TEST(WTF, StringNumberToStringECMAScriptBoundaries)
{
    typedef std::numeric_limits<double> Limits;

    // Infinity.
    testNumberToStringECMAScript(Limits::infinity(), "Infinity");
    testNumberToStringECMAScript(-Limits::infinity(), "-Infinity");

    // NaN.
    testNumberToStringECMAScript(-Limits::quiet_NaN(), "NaN");

    // Zeros.
    testNumberToStringECMAScript(0, "0");
    testNumberToStringECMAScript(-0, "0");

    // Min-Max.
    testNumberToStringECMAScript(Limits::min(), "2.2250738585072014e-308");
    testNumberToStringECMAScript(Limits::max(), "1.7976931348623157e+308");
}

TEST(WTF, StringNumberToStringECMAScriptRegularNumbers)
{
    // Pi.
    testNumberToStringECMAScript(piDouble, "3.141592653589793");
    testNumberToStringECMAScript(piFloat, "3.1415927410125732");
    testNumberToStringECMAScript(piOverTwoDouble, "1.5707963267948966");
    testNumberToStringECMAScript(piOverTwoFloat, "1.5707963705062866");
    testNumberToStringECMAScript(piOverFourDouble, "0.7853981633974483");
    testNumberToStringECMAScript(piOverFourFloat, "0.7853981852531433");

    // e.
    const double e = 2.71828182845904523536028747135266249775724709369995;
    testNumberToStringECMAScript(e, "2.718281828459045");

    // c, speed of light in m/s.
    const double c = 299792458;
    testNumberToStringECMAScript(c, "299792458");

    // Golen ratio.
    const double phi = 1.6180339887498948482;
    testNumberToStringECMAScript(phi, "1.618033988749895");
}

TEST(WTF, StringReplaceWithLiteral)
{
    // Cases for 8Bit source.
    String testString = "1224";
    ASSERT_TRUE(testString.is8Bit());
    testString.replaceWithLiteral('2', "");
    ASSERT_STREQ("14", testString.utf8().data());

    testString = "1224";
    ASSERT_TRUE(testString.is8Bit());
    testString.replaceWithLiteral('2', "3");
    ASSERT_STREQ("1334", testString.utf8().data());

    testString = "1224";
    ASSERT_TRUE(testString.is8Bit());
    testString.replaceWithLiteral('2', "555");
    ASSERT_STREQ("15555554", testString.utf8().data());

    testString = "1224";
    ASSERT_TRUE(testString.is8Bit());
    testString.replaceWithLiteral('3', "NotFound");
    ASSERT_STREQ("1224", testString.utf8().data());

    // Cases for 16Bit source.
    testString = String::fromUTF8("résumé");
    ASSERT_FALSE(testString.is8Bit());
    testString.replaceWithLiteral(UChar(0x00E9 /*U+00E9 is 'é'*/), "e");
    ASSERT_STREQ("resume", testString.utf8().data());

    testString = String::fromUTF8("résumé");
    ASSERT_FALSE(testString.is8Bit());
    testString.replaceWithLiteral(UChar(0x00E9 /*U+00E9 is 'é'*/), "");
    ASSERT_STREQ("rsum", testString.utf8().data());

    testString = String::fromUTF8("résumé");
    ASSERT_FALSE(testString.is8Bit());
    testString.replaceWithLiteral('3', "NotFound");
    ASSERT_STREQ("résumé", testString.utf8().data());
}


} // namespace TestWebKitAPI