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Groovy example source code file (BigDecimalOperatorsTest.groovy)

This example Groovy source code file (BigDecimalOperatorsTest.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

bigdecimal, bigdecimal, bigdecimaloperatorstest, bigdecimaloperatorstest, groovytestcase, groovytestcase

The Groovy BigDecimalOperatorsTest.groovy source code

/*
 * Copyright 2003-2010 the original author or authors.
 *
 * Licensed 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 groovy.operator

class BigDecimalOperatorsTest extends GroovyTestCase {

    def x, y

    void testPlus() {
        x = 0.1 + 1.1
        assert x instanceof BigDecimal
        assert x == 1.2

        x = 3 + 2.2
        assert x == 5.2
        assert x instanceof BigDecimal

        x = 2.2 + 4
        assert x instanceof BigDecimal
        assert x == 6.2

        y = x + 1
        assert y instanceof BigDecimal
        assert y == 7.2

        def z = y + x + 1 + 2
        assert z instanceof BigDecimal
        assert z == 16.4
    }

    void testMinus() {
        x = 1.1-0.01
        assert x == 1.09

        x = 6 - 2.2
        assert x == 3.8

        x = 5.8 - 2
        assert x == 3.8

        y = x - 1
        assert y == 2.8
    }

    void testMultiply() {
        x = 3 * 2.0
        assert x == 6.0

        x = 3.0 * 2
        assert x == 6.0

        x = 3.0 * 2.0
        assert x == 6.0

        y = x * 2
        assert y == 12.0

        y = 11 * 3.333
        assert y == 36.663 , "y = " + y

        y = 3.333 * 11
        assert y == 36.663 , "y = " + y
    }

    void testDivide() {
        x = 80.0 / 4
        assert x == 20.0 , "x = " + x

        x = 80 / 4.0
        assert x == 20.0 , "x = " + x

        y = x / 2
        assert y == 10.0 , "y = " + y
        assert y == 10 , "y = " + y

        y = 34 / 3.000
        assert y == 11.3333333333 , "y = " + y

        y = 34.00000000000 / 3
        assert y == 11.33333333333 , "y = " + y
    }
    
    BigDecimal echoX ( BigDecimal x, BigDecimal y) {x}
    
    // test for Groovy-1250
    void testBigDecimalCoerce() {
        assert echoX(9.95, 1.0) == echoX(9.95, 1)
    }
    
    void testAssign() {
        BigDecimal foo
        foo = (byte) 20
        assert foo.class == BigDecimal.class
        assert foo == 20

        foo = (short) 20
        assert foo.class == BigDecimal.class
        assert foo == 20

        foo = (int) 20
        assert foo.class == BigDecimal.class
        assert foo == 20

        foo = (long) 20
        assert foo.class == BigDecimal.class
        assert foo == 20

        foo = (float) 0.5f
        assert foo.class == BigDecimal.class
        assert foo == 0.5

        foo = (double) 0.5d
        assert foo.class == BigDecimal.class
        assert foo == 0.5
        
        foo = 10G
        assert foo.class == BigDecimal.class
        assert foo == 10
        
        double d = 1000
        d *= d
        d *= d
        d *= d
        assert (long)d != d
        assert (BigDecimal) d == d
    }
}

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