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package com.oracle.truffle.js.test.builtins;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Engine;
import org.graalvm.polyglot.PolyglotException;
import org.graalvm.polyglot.Value;
import org.junit.Test;

import com.oracle.truffle.js.test.JSTest;
import com.oracle.truffle.js.lang.JavaScriptLanguage;
import com.oracle.truffle.js.runtime.JSContextOptions;

Tests for the global builtin.
/**
 * Tests for the global builtin.
 */
public class GlobalBuiltinTest extends JSTest {

    @Test
    public void testParseInt() {
        // radix conversion, int input
        assertEquals(-9, testHelper.run("parseInt(-11,8)"));
        assertEquals(9, testHelper.run("parseInt(11,8)"));
        assertEquals(15, testHelper.run("parseInt(17,8)"));
        assertEquals(Double.NaN, testHelper.run("parseInt(18,8)"));

        // radix conversion, double input
        assertEquals(-9, testHelper.run("parseInt(-11.1415,8)"));
        assertEquals(9, testHelper.run("parseInt(11.1415,8)"));
        assertEquals(15, testHelper.run("parseInt(17.777,8)"));
        assertEquals(Double.NaN, testHelper.run("parseInt(18.777,8)"));

        // hex start
        assertEquals(255, testHelper.run("parseInt('0xFF')"));
        assertEquals(-255, testHelper.run("parseInt('-0xFF')"));
        assertEquals(536870911, testHelper.run("parseInt('0x00000001FFFFFFF')"));

        // empty string
        assertEquals(Double.NaN, testHelper.run("parseInt('')"));
        assertEquals(Double.NaN, testHelper.run("parseInt('-',10)"));

        // radix==0
        assertEquals(123, testHelper.run("parseInt('123',0)"));

        // illegal radix
        assertEquals(Double.NaN, testHelper.run("parseInt('123',1)"));
        assertEquals(Double.NaN, testHelper.run("parseInt('123',37)"));

        // int input, no radix
        assertEquals(123, testHelper.run("parseInt(123)"));
    }

    @Test
    public void testQuitInPromiseJob() {
        Engine engine = JSTest.newEngineBuilder().build();
        try (Context context = JSTest.newContextBuilder().engine(engine).option(JSContextOptions.SHELL_NAME, "true").build()) {
            // Schedule a promise job that exits while the promise job queue is not empty.
            context.eval(JavaScriptLanguage.ID, "var promise = Promise.resolve(42); promise.then(x => quit()); promise.then(x => x*x)");
            fail("Exception expected");
        } catch (PolyglotException pex) {
            assertTrue(pex.isExit());
        }
        // Create a new Context that shares JSContext with the original Context.
        // It should not attempt to execute the remaining promise jobs
        // (it would lead to IllegalStateException: The Context is already closed)
        try (Context context2 = JSTest.newContextBuilder().engine(engine).option(JSContextOptions.SHELL_NAME, "true").build()) {
            Value result = context2.eval(JavaScriptLanguage.ID, "6*7");
            assertTrue(result.isNumber());
            assertEquals(42, result.asInt());
        }
    }

}