Tools/TestWebKitAPI/Tests/WTF/AtomString.cpp

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#include "config.h"

#include <wtf/text/AtomString.h>

namespace TestWebKitAPI {

TEST(WTF, AtomStringCreationFromLiteral)
{
    AtomString stringWithTemplate("Template Literal", AtomString::ConstructFromLiteral);
    ASSERT_EQ(strlen("Template Literal"), stringWithTemplate.length());
    ASSERT_TRUE(stringWithTemplate == "Template Literal");
    ASSERT_TRUE(stringWithTemplate.string().is8Bit());

    const char* programmaticStringData = "Explicit Size Literal";
    AtomString programmaticString(programmaticStringData, strlen(programmaticStringData), AtomString::ConstructFromLiteral);
    ASSERT_EQ(strlen(programmaticStringData), programmaticString.length());
    ASSERT_TRUE(programmaticString.string().is8Bit());
    ASSERT_EQ(programmaticStringData, reinterpret_cast<const char*>(programmaticString.string().characters8()));
}

TEST(WTF, AtomStringCreationFromLiteralUniqueness)
{
    AtomString string1("Template Literal", AtomString::ConstructFromLiteral);
    AtomString string2("Template Literal", AtomString::ConstructFromLiteral);
    ASSERT_EQ(string1.impl(), string2.impl());

    AtomString string3("Template Literal");
    ASSERT_EQ(string1.impl(), string3.impl());
}

TEST(WTF, AtomStringExistingHash)
{
    AtomString string1("Template Literal", AtomString::ConstructFromLiteral);
    ASSERT_EQ(string1.existingHash(), string1.impl()->existingHash());
    AtomString string2;
    ASSERT_EQ(string2.existingHash(), 0u);
}

static inline const char* testAtomStringNumber(double number)
{
    static char testBuffer[100] = { };
    std::strncpy(testBuffer, AtomString::number(number).string().utf8().data(), 99);
    return testBuffer;
}

TEST(WTF, AtomStringNumberDouble)
{
    using Limits = std::numeric_limits<double>;

    EXPECT_STREQ("Infinity", testAtomStringNumber(Limits::infinity()));
    EXPECT_STREQ("-Infinity", testAtomStringNumber(-Limits::infinity()));

    EXPECT_STREQ("NaN", testAtomStringNumber(-Limits::quiet_NaN()));

    EXPECT_STREQ("0", testAtomStringNumber(0));
    EXPECT_STREQ("0", testAtomStringNumber(-0));

    EXPECT_STREQ("2.2250738585072014e-308", testAtomStringNumber(Limits::min()));
    EXPECT_STREQ("-1.7976931348623157e+308", testAtomStringNumber(Limits::lowest()));
    EXPECT_STREQ("1.7976931348623157e+308", testAtomStringNumber(Limits::max()));

    EXPECT_STREQ("3.141592653589793", testAtomStringNumber(piDouble));
    EXPECT_STREQ("3.1415927410125732", testAtomStringNumber(piFloat));
    EXPECT_STREQ("1.5707963267948966", testAtomStringNumber(piOverTwoDouble));
    EXPECT_STREQ("1.5707963705062866", testAtomStringNumber(piOverTwoFloat));
    EXPECT_STREQ("0.7853981633974483", testAtomStringNumber(piOverFourDouble));
    EXPECT_STREQ("0.7853981852531433", testAtomStringNumber(piOverFourFloat));

    EXPECT_STREQ("2.718281828459045", testAtomStringNumber(2.71828182845904523536028747135266249775724709369995));

    EXPECT_STREQ("299792458", testAtomStringNumber(299792458));

    EXPECT_STREQ("1.618033988749895", testAtomStringNumber(1.6180339887498948482));

    EXPECT_STREQ("1000", testAtomStringNumber(1e3));
    EXPECT_STREQ("10000000000", testAtomStringNumber(1e10));
    EXPECT_STREQ("100000000000000000000", testAtomStringNumber(1e20));
    EXPECT_STREQ("1e+21", testAtomStringNumber(1e21));
    EXPECT_STREQ("1e+30", testAtomStringNumber(1e30));

    EXPECT_STREQ("1100", testAtomStringNumber(1.1e3));
    EXPECT_STREQ("11000000000", testAtomStringNumber(1.1e10));
    EXPECT_STREQ("110000000000000000000", testAtomStringNumber(1.1e20));
    EXPECT_STREQ("1.1e+21", testAtomStringNumber(1.1e21));
    EXPECT_STREQ("1.1e+30", testAtomStringNumber(1.1e30));
}

} // namespace TestWebKitAPI