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Assert.java
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package org.junit;
//BSD License
//
//Copyright (c) 2000-2006, www.hamcrest.org
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//
//Redistributions of source code must retain the above copyright notice, this list of
//conditions and the following disclaimer. Redistributions in binary form must reproduce
//the above copyright notice, this list of conditions and the following disclaimer in
//the documentation and/or other materials provided with the distribution.
//
//Neither the name of Hamcrest nor the names of its contributors may be used to endorse
//or promote products derived from this software without specific prior written
//permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
//EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
//OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
//SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
//TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
//BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
//CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
//WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
//DAMAGE.
/*
* MODIFIED version of JUnit 4.11 as available at
* https://search.maven.org/remotecontent?filepath=junit/junit/4.11/junit-4.11-sources.jar
* Only parts of this file have been retained for test purposes.
*/
public class Assert {
/**
* Asserts that a condition is true. If it isn't it throws an
* {@link AssertionError} with the given message.
*
* @param message the identifying message for the {@link AssertionError} (<code>null</code>
* okay)
* @param condition condition to be checked
*/
static public void assertTrue(String message, boolean condition) {
if (!condition) {
fail(message);
}
}
/**
* Asserts that a condition is true. If it isn't it throws an
* {@link AssertionError} without a message.
*
* @param condition condition to be checked
*/
static public void assertTrue(boolean condition) {
assertTrue(null, condition);
}
/**
* Asserts that a condition is false. If it isn't it throws an
* {@link AssertionError} with the given message.
*
* @param message the identifying message for the {@link AssertionError} (<code>null</code>
* okay)
* @param condition condition to be checked
*/
static public void assertFalse(String message, boolean condition) {
assertTrue(message, !condition);
}
/**
* Asserts that a condition is false. If it isn't it throws an
* {@link AssertionError} without a message.
*
* @param condition condition to be checked
*/
static public void assertFalse(boolean condition) {
assertFalse(null, condition);
}
/**
* Fails a test with the given message.
*
* @param message the identifying message for the {@link AssertionError} (<code>null</code>
* okay)
* @see AssertionError
*/
static public void fail(String message) {
if (message == null) {
throw new AssertionError();
}
throw new AssertionError(message);
}
/**
* Asserts that an object isn't null. If it is an {@link AssertionError} is
* thrown with the given message.
*
* @param message the identifying message for the {@link AssertionError} (<code>null</code>
* okay)
* @param object Object to check or <code>null</code>
*/
static public void assertNotNull(String message, Object object) {
assertTrue(message, object != null);
}
/**
* Asserts that an object isn't null. If it is an {@link AssertionError} is
* thrown.
*
* @param object Object to check or <code>null</code>
*/
static public void assertNotNull(Object object) {
assertNotNull(null, object);
}
/**
* Asserts that an object is null. If it is not, an {@link AssertionError}
* is thrown with the given message.
*
* @param message the identifying message for the {@link AssertionError} (<code>null</code>
* okay)
* @param object Object to check or <code>null</code>
*/
static public void assertNull(String message, Object object) {
if (object == null) {
return;
}
failNotNull(message, object);
}
/**
* Asserts that an object is null. If it isn't an {@link AssertionError} is
* thrown.
*
* @param object Object to check or <code>null</code>
*/
static public void assertNull(Object object) {
assertNull(null, object);
}
static private void failNotNull(String message, Object actual) {
String formatted = "";
if (message != null) {
formatted = message + " ";
}
fail(formatted + "expected null, but was:<" + actual + ">");
}
}