src/test/org/codehaus/groovy/runtime/powerassert/AssertionTestUtil.groovy

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF 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.codehaus.groovy.runtime.powerassert

import org.junit.Assert

/**
 * Utility methods for testing power assertions.
 */

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())
        }
    }
}