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#include "controllers/colormapperjsproxy.h"

#include <gtest/gtest.h>

#include "test/mixxxtest.h"

namespace {

QScriptEngine* createScriptEngine() {
    QScriptEngine* pEngine = new QScriptEngine();
    QScriptValue constructor = pEngine->newFunction(ColorMapperJSProxyConstructor);
    QScriptValue metaObject = pEngine->newQMetaObject(&ColorMapperJSProxy::staticMetaObject, constructor);
    pEngine->globalObject().setProperty("ColorMapper", metaObject);
    return pEngine;
}

} // namespace

class ColorMapperJSProxyTest : public MixxxTest {};

TEST_F(ColorMapperJSProxyTest, Instantiation) {
    QScriptEngine* pEngine = createScriptEngine();

    // Valid instantiation
    pEngine->evaluate(
            R"JavaScript(
            var mapper = new ColorMapper({
                0xFF0000: 1,
                0x00FF00: 2,
                0x0000FF: 3,
            });
            )JavaScript");
    EXPECT_FALSE(pEngine->hasUncaughtException());
    pEngine->clearExceptions();

    // Invalid instantiation: no arguments
    pEngine->evaluate("var mapper = new ColorMapper();");
    EXPECT_TRUE(pEngine->hasUncaughtException());
    pEngine->clearExceptions();

    // Invalid instantiation: invalid argument
    pEngine->evaluate("var mapper = new ColorMapper('hello');");
    EXPECT_TRUE(pEngine->hasUncaughtException());
    pEngine->clearExceptions();

    // Invalid instantiation: argument is an empty object
    pEngine->evaluate("var mapper = new ColorMapper({});");
    EXPECT_TRUE(pEngine->hasUncaughtException());
    pEngine->clearExceptions();

    // Invalid instantiation: argument is an empty object
    pEngine->evaluate(
            R"JavaScript(
            var mapper = new ColorMapper({
                'not a color': 1
            });
            )JavaScript");
    EXPECT_TRUE(pEngine->hasUncaughtException());
    pEngine->clearExceptions();
}

TEST_F(ColorMapperJSProxyTest, GetNearestColor) {
    QScriptEngine* pEngine = createScriptEngine();
    pEngine->evaluate(
            R"JavaScript(
            var mapper = new ColorMapper({
                0xC50A08: 1,
                0x32BE44: 2,
                0x42D4F4: 3,
                0xF8D200: 4,
                0x0044FF: 5,
                0xAF00CC: 6,
                0xFCA6D7: 7,
                0xF2F2FF: 8,
            });
            /* white */
            var color1 = mapper.getNearestColor(0xFFFFFF);
            if (color1.red != 0xF2 || color1.green != 0xF2 || color1.blue != 0xFF) {
                throw Error();
            };
            /* white */
            var color2 = mapper.getNearestColor(0xDCDCDC);
            if (color2.red != 0xF2 || color2.green != 0xF2 || color2.blue != 0xFF) {
                throw Error();
            };
            /* red */
            var color3 = mapper.getNearestColor(0xFF0000);
            if (color3.red != 0xC5 || color3.green != 0x0A || color3.blue != 0x08) {
                throw Error();
            };
            /* yellow */
            var color4 = mapper.getNearestColor(0x22CC22);
            if (color4.red != 0x32 || color4.green != 0xBE || color4.blue != 0x44) {
                throw Error();
            }
            )JavaScript");
    EXPECT_FALSE(pEngine->hasUncaughtException());
}

TEST_F(ColorMapperJSProxyTest, GetNearestValue) {
    QScriptEngine* pEngine = createScriptEngine();
    pEngine->evaluate(
            R"JavaScript(
            var mapper = new ColorMapper({
                0xC50A08: 1,
                0x32BE44: 2,
                0x42D4F4: 3,
                0xF8D200: 4,
                0x0044FF: 5,
                0xAF00CC: 6,
                0xFCA6D7: 7,
                0xF2F2FF: 8,
            });
            /* red */
            if (mapper.getValueForNearestColor(0xFF0000) != 1) {
                throw Error();
            };
            /* blue */
            if (mapper.getValueForNearestColor(0x0000AA) != 5) {
                throw Error();
            };
            /* white */
            if (mapper.getValueForNearestColor(0xFFFFFF) != 8) {
                throw Error();
            };
            )JavaScript");
    EXPECT_FALSE(pEngine->hasUncaughtException());
}