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Groovy example source code file (BooleanOperationsTest.groovy)

This example Groovy source code file (BooleanOperationsTest.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

booleanoperationstest, booleanoperationstest, groovytestcase, groovytestcase

The Groovy BooleanOperationsTest.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 BooleanOperationsTest extends GroovyTestCase {

    void testComparisons() {
        assert true
        assert true != false

        def x = true
        assert x
        assert x == true
        assert x != false

        x = false
        assert x == false
        assert x != true
        assert !x

        def y = false
        assert x == y

        y = true
        assert x != y
    }

    void testIfBranch() {
        def x = false
        def r = false
        if (x) {
            // ignore
        }
        else {
            r = true
        }
        assert r

        x = true
        r = false
        if (x) {
            r = true
        }
        else {
            // ignore
        }
        assert r

        if (!x) {
            r = false
        }
        else {
            r = true
        }
        assert r
    }

    void testBooleanExpression() {
        def x = 5
        def value = x > 2
        assert value

        value = x < 2
        assert value == false
    }


    void testBooleanOps() {
        boolean x = true
        boolean y = false
        assert (x & x) == true
        assert (x & y) == false
        assert (y & x) == false
        assert (y & y) == false

        assert (x | x) == true
        assert (x | y) == true
        assert (y | x) == true
        assert (y | y) == false

        assert (x ^ x) == false
        assert (x ^ y) == true
        assert (y ^ x) == true
        assert (y ^ y) == false

        assert (!x) == false
        assert (!y) == true
    }


    void testBooleanAssignOps() {
        boolean z = true
        z &= true
        assert z == true
        z &= false
        assert z == false

        z = true
        z |= true
        assert z == true
        z |= false
        assert z == true
        z = false
        z |= false
        assert z == false
        z |= true
        assert z == true

        z = true
        z ^= true
        assert z == false
        z ^= true
        assert z == true
        z ^= false
        assert z == true
        z ^= true
        assert z == false
        z ^= false
        assert z == false
    }

}

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