Tools/TestWebKitAPI/Tests/WebCore/StringWithDirection.cpp

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#include "config.h"

#include "Test.h"
#include "WTFStringUtilities.h"
#include <WebCore/StringWithDirection.h>

using namespace WebCore;

namespace WebCore {

std::ostream& operator<<(std::ostream& os, const TextDirection& direction)
{
    switch (direction) {
    case TextDirection::LTR:
        os << "TextDirection::LTR";
        break;
    case TextDirection::RTL:
        os << "TextDirection::RTL";
        break;
    }
    return os;
}

}

namespace TestWebKitAPI {

TEST(StringWithDirection, TruncateAtEndWithLeftToRightString)
{
    StringWithDirection string { "Cappuccino", TextDirection::LTR };
    StringWithDirection result;

    result = truncateFromEnd(string, 0);
    EXPECT_EQ(TextDirection::LTR, result.direction);
    EXPECT_EQ("", result.string);

    result = truncateFromEnd(string, 1);
    EXPECT_EQ(TextDirection::LTR, result.direction);
    EXPECT_EQ("C", result.string);

    result = truncateFromEnd(string, 2);
    EXPECT_EQ(TextDirection::LTR, result.direction);
    EXPECT_EQ("Ca", result.string);

    result = truncateFromEnd(string, 1000);
    EXPECT_EQ(TextDirection::LTR, result.direction);
    EXPECT_EQ("Cappuccino", result.string);
}

TEST(StringWithDirection, TruncateAtEndWithRightToLeftString)
{
    StringWithDirection string { String::fromUTF8("קָפּוּצִ'ינוֹ"), TextDirection::RTL };
    StringWithDirection result;

    result = truncateFromEnd(string, 0);
    EXPECT_EQ(TextDirection::RTL, result.direction);
    EXPECT_EQ("", result.string);

    result = truncateFromEnd(string, 1);
    EXPECT_EQ(TextDirection::RTL, result.direction);
    EXPECT_EQ(String::fromUTF8("ק"), result.string);

    result = truncateFromEnd(string, 2);
    EXPECT_EQ(TextDirection::RTL, result.direction);
    EXPECT_EQ(String::fromUTF8("קָ"), result.string);

    result = truncateFromEnd(string, 1000);
    EXPECT_EQ(TextDirection::RTL, result.direction);
    EXPECT_EQ(String::fromUTF8("קָפּוּצִ'ינוֹ"), result.string);
}

} // namespace TestWebKitAPI