/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.elasticsearch.painless;

/** Tests for multiplication operator across all types */
//TODO: NaN/Inf/overflow/...
public class MultiplicationTests extends ScriptTestCase {

    // TODO: short,byte,char
    
    public void testBasics() throws Exception {
        assertEquals(8, exec("int x = 4; char y = 2; return x*y;"));
    }

    public void testInt() throws Exception {
        assertEquals(1*1, exec("int x = 1; int y = 1; return x*y;"));
        assertEquals(2*3, exec("int x = 2; int y = 3; return x*y;"));
        assertEquals(5*10, exec("int x = 5; int y = 10; return x*y;"));
        assertEquals(1*1*2, exec("int x = 1; int y = 1; int z = 2; return x*y*z;"));
        assertEquals((1*1)*2, exec("int x = 1; int y = 1; int z = 2; return (x*y)*z;"));
        assertEquals(1*(1*2), exec("int x = 1; int y = 1; int z = 2; return x*(y*z);"));
        assertEquals(10*0, exec("int x = 10; int y = 0; return x*y;"));
        assertEquals(0*0, exec("int x = 0; int y = 0; return x*x;"));
    }

    public void testIntConst() throws Exception {
        assertEquals(1*1, exec("return 1*1;"));
        assertEquals(2*3, exec("return 2*3;"));
        assertEquals(5*10, exec("return 5*10;"));
        assertEquals(1*1*2, exec("return 1*1*2;"));
        assertEquals((1*1)*2, exec("return (1*1)*2;"));
        assertEquals(1*(1*2), exec("return 1*(1*2);"));
        assertEquals(10*0, exec("return 10*0;"));
        assertEquals(0*0, exec("return 0*0;"));
    }

    public void testByte() throws Exception {
        assertEquals((byte)1*(byte)1, exec("byte x = 1; byte y = 1; return x*y;"));
        assertEquals((byte)2*(byte)3, exec("byte x = 2; byte y = 3; return x*y;"));
        assertEquals((byte)5*(byte)10, exec("byte x = 5; byte y = 10; return x*y;"));
        assertEquals((byte)1*(byte)1*(byte)2, exec("byte x = 1; byte y = 1; byte z = 2; return x*y*z;"));
        assertEquals(((byte)1*(byte)1)*(byte)2, exec("byte x = 1; byte y = 1; byte z = 2; return (x*y)*z;"));
        assertEquals((byte)1*((byte)1*(byte)2), exec("byte x = 1; byte y = 1; byte z = 2; return x*(y*z);"));
        assertEquals((byte)10*(byte)0, exec("byte x = 10; byte y = 0; return x*y;"));
        assertEquals((byte)0*(byte)0, exec("byte x = 0; byte y = 0; return x*x;"));
    }

    public void testLong() throws Exception {
        assertEquals(1L*1L, exec("long x = 1; long y = 1; return x*y;"));
        assertEquals(2L*3L, exec("long x = 2; long y = 3; return x*y;"));
        assertEquals(5L*10L, exec("long x = 5; long y = 10; return x*y;"));
        assertEquals(1L*1L*2L, exec("long x = 1; long y = 1; int z = 2; return x*y*z;"));
        assertEquals((1L*1L)*2L, exec("long x = 1; long y = 1; int z = 2; return (x*y)*z;"));
        assertEquals(1L*(1L*2L), exec("long x = 1; long y = 1; int z = 2; return x*(y*z);"));
        assertEquals(10L*0L, exec("long x = 10; long y = 0; return x*y;"));
        assertEquals(0L*0L, exec("long x = 0; long y = 0; return x*x;"));
    }

    public void testLongConst() throws Exception {
        assertEquals(1L*1L, exec("return 1L*1L;"));
        assertEquals(2L*3L, exec("return 2L*3L;"));
        assertEquals(5L*10L, exec("return 5L*10L;"));
        assertEquals(1L*1L*2L, exec("return 1L*1L*2L;"));
        assertEquals((1L*1L)*2L, exec("return (1L*1L)*2L;"));
        assertEquals(1L*(1L*2L), exec("return 1L*(1L*2L);"));
        assertEquals(10L*0L, exec("return 10L*0L;"));
        assertEquals(0L*0L, exec("return 0L*0L;"));
    }

    public void testFloat() throws Exception {
        assertEquals(1F*1F, exec("float x = 1; float y = 1; return x*y;"));
        assertEquals(2F*3F, exec("float x = 2; float y = 3; return x*y;"));
        assertEquals(5F*10F, exec("float x = 5; float y = 10; return x*y;"));
        assertEquals(1F*1F*2F, exec("float x = 1; float y = 1; float z = 2; return x*y*z;"));
        assertEquals((1F*1F)*2F, exec("float x = 1; float y = 1; float z = 2; return (x*y)*z;"));
        assertEquals(1F*(1F*2F), exec("float x = 1; float y = 1; float z = 2; return x*(y*z);"));
        assertEquals(10F*0F, exec("float x = 10; float y = 0; return x*y;"));
        assertEquals(0F*0F, exec("float x = 0; float y = 0; return x*x;"));
    }

    public void testFloatConst() throws Exception {
        assertEquals(1F*1F, exec("return 1F*1F;"));
        assertEquals(2F*3F, exec("return 2F*3F;"));
        assertEquals(5F*10F, exec("return 5F*10F;"));
        assertEquals(1F*1F*2F, exec("return 1F*1F*2F;"));
        assertEquals((1F*1F)*2F, exec("return (1F*1F)*2F;"));
        assertEquals(1F*(1F*2F), exec("return 1F*(1F*2F);"));
        assertEquals(10F*0F, exec("return 10F*0F;"));
        assertEquals(0F*0F, exec("return 0F*0F;"));
    }

    public void testDouble() throws Exception {
        assertEquals(1D*1D, exec("double x = 1; double y = 1; return x*y;"));
        assertEquals(2D*3D, exec("double x = 2; double y = 3; return x*y;"));
        assertEquals(5D*10D, exec("double x = 5; double y = 10; return x*y;"));
        assertEquals(1D*1D*2D, exec("double x = 1; double y = 1; double z = 2; return x*y*z;"));
        assertEquals((1D*1D)*2D, exec("double x = 1; double y = 1; double z = 2; return (x*y)*z;"));
        assertEquals(1D*(1D*2D), exec("double x = 1; double y = 1; double z = 2; return x*(y*z);"));
        assertEquals(10D*0D, exec("double x = 10; float y = 0; return x*y;"));
        assertEquals(0D*0D, exec("double x = 0; float y = 0; return x*x;"));
    }

    public void testDoubleConst() throws Exception {
        assertEquals(1.0*1.0, exec("return 1.0*1.0;"));
        assertEquals(2.0*3.0, exec("return 2.0*3.0;"));
        assertEquals(5.0*10.0, exec("return 5.0*10.0;"));
        assertEquals(1.0*1.0*2.0, exec("return 1.0*1.0*2.0;"));
        assertEquals((1.0*1.0)*2.0, exec("return (1.0*1.0)*2.0;"));
        assertEquals(1.0*(1.0*2.0), exec("return 1.0*(1.0*2.0);"));
        assertEquals(10.0*0.0, exec("return 10.0*0.0;"));
        assertEquals(0.0*0.0, exec("return 0.0*0.0;"));
    }
    
    public void testDef() {
        assertEquals(4, exec("def x = (byte)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; def y = (byte)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (byte)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (byte)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (byte)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; def y = (short)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (short)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (short)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (short)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; def y = (char)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (char)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (char)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (char)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; def y = (int)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (int)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (int)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (int)2; return x * y"));

        assertEquals(4L, exec("def x = (byte)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (short)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (char)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (int)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (long)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (long)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (long)2; return x * y"));

        assertEquals(4F, exec("def x = (byte)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (short)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (char)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (int)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (long)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (float)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (float)2; return x * y"));

        assertEquals(4D, exec("def x = (byte)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (short)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (char)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (int)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (long)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (float)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (double)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; def y = (int)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; def y = (long)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; def y = (float)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; def y = (double)2; return x * y"));
    }
    
    public void testDefTypedLHS() {
        assertEquals(4, exec("byte x = (byte)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("short x = (short)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("char x = (char)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("int x = (int)2; def y = (byte)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (byte)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (byte)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (byte)2; return x * y"));

        assertEquals(4, exec("byte x = (byte)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("short x = (short)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("char x = (char)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("int x = (int)2; def y = (short)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (short)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (short)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (short)2; return x * y"));

        assertEquals(4, exec("byte x = (byte)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("short x = (short)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("char x = (char)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("int x = (int)2; def y = (char)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (char)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (char)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (char)2; return x * y"));

        assertEquals(4, exec("byte x = (byte)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("short x = (short)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("char x = (char)2; def y = (int)2; return x * y"));
        assertEquals(4, exec("int x = (int)2; def y = (int)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (int)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (int)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (int)2; return x * y"));

        assertEquals(4L, exec("byte x = (byte)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("short x = (short)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("char x = (char)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("int x = (int)2; def y = (long)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (long)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (long)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (long)2; return x * y"));

        assertEquals(4F, exec("byte x = (byte)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("short x = (short)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("char x = (char)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("int x = (int)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("long x = (long)2; def y = (float)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (float)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (float)2; return x * y"));

        assertEquals(4D, exec("byte x = (byte)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("short x = (short)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("char x = (char)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("int x = (int)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("long x = (long)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("float x = (float)2; def y = (double)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (double)2; return x * y"));

        assertEquals(4, exec("byte x = (byte)2; def y = (byte)2; return x * y"));
        assertEquals(4, exec("short x = (short)2; def y = (short)2; return x * y"));
        assertEquals(4, exec("char x = (char)2; def y = (char)2; return x * y"));
        assertEquals(4, exec("int x = (int)2; def y = (int)2; return x * y"));
        assertEquals(4L, exec("long x = (long)2; def y = (long)2; return x * y"));
        assertEquals(4F, exec("float x = (float)2; def y = (float)2; return x * y"));
        assertEquals(4D, exec("double x = (double)2; def y = (double)2; return x * y"));
    }
    
    public void testDefTypedRHS() {
        assertEquals(4, exec("def x = (byte)2; byte y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; byte y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; byte y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; byte y = (byte)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; byte y = (byte)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; byte y = (byte)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; byte y = (byte)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; short y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; short y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; short y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; short y = (short)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; short y = (short)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; short y = (short)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; short y = (short)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; char y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; char y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; char y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; char y = (char)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; char y = (char)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; char y = (char)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; char y = (char)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; int y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; int y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; int y = (int)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; int y = (int)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; int y = (int)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; int y = (int)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; int y = (int)2; return x * y"));

        assertEquals(4L, exec("def x = (byte)2; long y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (short)2; long y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (char)2; long y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (int)2; long y = (long)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; long y = (long)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; long y = (long)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; long y = (long)2; return x * y"));

        assertEquals(4F, exec("def x = (byte)2; float y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (short)2; float y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (char)2; float y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (int)2; float y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (long)2; float y = (float)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; float y = (float)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; float y = (float)2; return x * y"));

        assertEquals(4D, exec("def x = (byte)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (short)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (char)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (int)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (long)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (float)2; double y = (double)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; double y = (double)2; return x * y"));

        assertEquals(4, exec("def x = (byte)2; byte y = (byte)2; return x * y"));
        assertEquals(4, exec("def x = (short)2; short y = (short)2; return x * y"));
        assertEquals(4, exec("def x = (char)2; char y = (char)2; return x * y"));
        assertEquals(4, exec("def x = (int)2; int y = (int)2; return x * y"));
        assertEquals(4L, exec("def x = (long)2; long y = (long)2; return x * y"));
        assertEquals(4F, exec("def x = (float)2; float y = (float)2; return x * y"));
        assertEquals(4D, exec("def x = (double)2; double y = (double)2; return x * y"));
    }
    
    public void testCompoundAssignment() {
        // byte
        assertEquals((byte) 15, exec("byte x = 5; x *= 3; return x;"));
        assertEquals((byte) -5, exec("byte x = 5; x *= -1; return x;"));
        // short
        assertEquals((short) 15, exec("short x = 5; x *= 3; return x;"));
        assertEquals((short) -5, exec("short x = 5; x *= -1; return x;"));
        // char
        assertEquals((char) 15, exec("char x = 5; x *= 3; return x;"));
        // int
        assertEquals(15, exec("int x = 5; x *= 3; return x;"));
        assertEquals(-5, exec("int x = 5; x *= -1; return x;"));
        // long
        assertEquals(15L, exec("long x = 5; x *= 3; return x;"));
        assertEquals(-5L, exec("long x = 5; x *= -1; return x;"));
        // float
        assertEquals(15F, exec("float x = 5f; x *= 3; return x;"));
        assertEquals(-5F, exec("float x = 5f; x *= -1; return x;"));
        // double
        assertEquals(15D, exec("double x = 5.0; x *= 3; return x;"));
        assertEquals(-5D, exec("double x = 5.0; x *= -1; return x;"));
    }
    
    public void testDefCompoundAssignment() {
        // byte
        assertEquals((byte) 15, exec("def x = (byte)5; x *= 3; return x;"));
        assertEquals((byte) -5, exec("def x = (byte)5; x *= -1; return x;"));
        // short
        assertEquals((short) 15, exec("def x = (short)5; x *= 3; return x;"));
        assertEquals((short) -5, exec("def x = (short)5; x *= -1; return x;"));
        // char
        assertEquals((char) 15, exec("def x = (char)5; x *= 3; return x;"));
        // int
        assertEquals(15, exec("def x = 5; x *= 3; return x;"));
        assertEquals(-5, exec("def x = 5; x *= -1; return x;"));
        // long
        assertEquals(15L, exec("def x = 5L; x *= 3; return x;"));
        assertEquals(-5L, exec("def x = 5L; x *= -1; return x;"));
        // float
        assertEquals(15F, exec("def x = 5f; x *= 3; return x;"));
        assertEquals(-5F, exec("def x = 5f; x *= -1; return x;"));
        // double
        assertEquals(15D, exec("def x = 5.0; x *= 3; return x;"));
        assertEquals(-5D, exec("def x = 5.0; x *= -1; return x;"));
    }
}
