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Diffstat (limited to 'qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/extensions/AsymptoticTestDecorator.java')
| -rw-r--r-- | qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/extensions/AsymptoticTestDecorator.java | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/extensions/AsymptoticTestDecorator.java b/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/extensions/AsymptoticTestDecorator.java new file mode 100644 index 0000000000..8869d25be3 --- /dev/null +++ b/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/extensions/AsymptoticTestDecorator.java @@ -0,0 +1,173 @@ +/* + * + * 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.apache.qpid.junit.extensions; + +import junit.framework.TestResult; + +import org.apache.log4j.Logger; + +import org.apache.qpid.junit.extensions.util.MathUtils; + +/** + * A Decorator that runs a test repeatedly on an increasing int parameter, or for a fixed number of repeats. If both + * a set of integer parameters and a repeat count are specified, then each test is run for the repeat count at each + * integer parameter. + * + * <p><table id="crc"><caption>CRC Card</caption> + * <tr><th> Responsibilities <th> Collaborations + * <tr><td> Repeat a test for each of a set of integer parameters. <td> {@link TKTestResult} + * <tr><td> Repeat a test multiple times. + * <tr><td> + * </table> + * + * @author Rupert Smith + */ +public class AsymptoticTestDecorator extends WrappedSuiteTestDecorator +{ + /** Used for logging. */ + private static final Logger log = Logger.getLogger(AsymptoticTestDecorator.class); + + /** The int size parameters to run the test with. */ + private int[] params; + + /** The number of times the whole test should be repeated. */ + private int repeat; + + /** + * Creates an asymptotic test decorator that wraps a test with repeats and a set of integer 'size' paramters + * to call the test with. + * + * @param test The test to wrap. + * @param params The integer 'size' parameters. + * @param repeat The number of times to repeat the test. + */ + public AsymptoticTestDecorator(WrappedSuiteTestDecorator test, int[] params, int repeat) + { + super(test); + + log.debug("public AsymptoticTestDecorator(Test \"" + test + "\", int[] " + + ((params == null) ? null : MathUtils.printArray(params)) + ", int " + repeat + "): called"); + + this.params = params; + this.repeat = repeat; + } + + /** + * Creates a new AsymptoticTestDecorator object. + * + * @param test The test to decorate. + * @param start The starting asymptotic integer parameter value. + * @param end The ending asymptotic integer parameter value. + * @param step The increment size to move from the start to end values by. + * @param repeat The number of times to repeat the test at each step of the cycle. + */ + public AsymptoticTestDecorator(WrappedSuiteTestDecorator test, int start, int end, int step, int repeat) + { + super(test); + + if (start < 0) + { + throw new IllegalArgumentException("Start must be >= 0"); + } + + if (end < start) + { + throw new IllegalArgumentException("End must be >= start"); + } + + if (step < 1) + { + throw new IllegalArgumentException("Step must be >= 1"); + } + + if (repeat < 1) + { + throw new IllegalArgumentException("Repeat must be >= 1"); + } + + // Generate the sequence. + params = new int[((end - start) / step) + 1]; + int i = 0; + for (int n = start; n <= end; n += step) + { + params[i++] = n; + } + + this.repeat = repeat; + } + + /** + * Runs the test repeatedly for each value of the int parameter specified and for the correct number of test + * repeats. + * + * @param result The test result object that the tests will indicate their results to. This is also used + * to pass the int parameter from this class to the decorated test class. + */ + public void run(TestResult result) + { + log.debug("public void run(TestResult result): called"); + + if (!(result instanceof TKTestResult)) + { + throw new IllegalArgumentException("AsymptoticTestDecorator only works with TKTestResult"); + } + + // Cast the test result into a TKTestResult to place the current parameter into. + TKTestResult tkResult = (TKTestResult) result; + + log.debug("params = " + ((params == null) ? null : MathUtils.printArray(params))); + log.debug("repeat = " + repeat); + + if(params != null) + { + for (int n : params) + { + for (int j = 0; j < repeat; j++) + { + log.debug("n = " + n); + + // Set the integer parameter in the TKTestResult to be passed to the tests. + tkResult.setN(n); + + if (tkResult.shouldStop()) + { + log.debug("tkResult.shouldStop = " + true); + + break; + } + + log.debug("Calling super#run"); + super.run(tkResult); + } + } + } + } + + /** + * Prints out the name of this test with the string "(parameterized)" appended onto it for debugging purposes. + * + * @return The name of this test with the string "(parameterized)" appended onto it. + */ + public String toString() + { + return super.toString() + "(parameterized)"; + } +} |