/*
 * Copyright 2002-2007 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.springframework.test;

import junit.framework.TestCase;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Superclass for JUnit 3.8 based tests that allows conditional test execution
 * at the individual test method level. The
 * {@link #isDisabledInThisEnvironment(String) isDisabledInThisEnvironment()}
 * method is invoked before the execution of each test method. Subclasses can
 * override that method to return whether or not the given test should be
 * executed. Note that the tests will still appear to have executed and passed;
 * however, log output will show that the test was not executed.
 *
 * @author Rod Johnson
 * @since 2.0
 * @see #isDisabledInThisEnvironment
 */
public abstract class ConditionalTestCase extends TestCase {

	private static int disabledTestCount;


	/**
	 * Return the number of tests disabled in this environment.
	 */
	public static int getDisabledTestCount() {
		return disabledTestCount;
	}


	/** Logger available to subclasses */
	protected final Log logger = LogFactory.getLog(getClass());


	/**
	 * Default constructor for ConditionalTestCase.
	 */
	public ConditionalTestCase() {
	}

	/**
	 * Constructor for ConditionalTestCase with a JUnit name.
	 */
	public ConditionalTestCase(String name) {
		super(name);
	}

	public void runBare() throws Throwable {
		// getName will return the name of the method being run
		if (isDisabledInThisEnvironment(getName())) {
			recordDisabled();
			this.logger.info("**** " + getClass().getName() + "." + getName() + " disabled in this environment: "
					+ "Total disabled tests = " + getDisabledTestCount());
			return;
		}

		// Let JUnit handle execution
		super.runBare();
	}

	/**
	 * Should this test run?
	 *
	 * @param testMethodName name of the test method
	 * @return whether the test should execute in the current environment
	 */
	protected boolean isDisabledInThisEnvironment(String testMethodName) {
		return false;
	}

	/**
	 * Record a disabled test.
	 *
	 * @return the current disabled test count
	 */
	protected int recordDisabled() {
		return ++disabledTestCount;
	}

}