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Groovy example source code file (AssertionTestUtil.groovy)

This example Groovy source code file (AssertionTestUtil.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

assertionerror, assertionerror, assertiontestutil, assertiontestutil, closure, powerassertionerror, powerassertionerror, runtimeexception, runtimeexception

The Groovy AssertionTestUtil.groovy source code

/*
 * Copyright 2008 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 org.codehaus.groovy.runtime.powerassert

import junit.framework.Assert

/**
 * Utility methods for testing power assertions.
 *
 * @author Peter Niederwieser
 */

abstract class AssertionTestUtil {
    static fails(Closure assertion) {
        try {
            assertion.call();
            Assert.fail("assertion should have failed but didn't")
        } catch (PowerAssertionError expected) {}
    }

    static isNotTransformed(Closure failingAssertion) {
        try {
            failingAssertion()
            throw new RuntimeException("assertion should have failed but didn't")
        } catch (AssertionError expected) {
            if (expected instanceof PowerAssertionError)
                throw new RuntimeException("assertion shouldn't have been but was transformed")
        }
    }

    static isRendered(String expectedRendering, Closure failingAssertion) {
        try {
            failingAssertion.call();
            Assert.fail("assertion should have failed but didn't")
        } catch (PowerAssertionError e) {
            Assert.assertEquals(expectedRendering.trim(), e.message.trim())
        }
    }
}

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