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/*
* File: DeferredAssert.java
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* The contents of this file are subject to the terms and conditions of
* the Common Development and Distribution License 1.0 (the "License").
*
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the License by consulting the LICENSE.txt file
* distributed with this file, or by consulting https://oss.oracle.com/licenses/CDDL
*
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file LICENSE.txt.
*
* MODIFICATIONS:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*/
package com.oracle.tools.deferred;
import org.hamcrest.Matcher;
import java.util.concurrent.TimeUnit;
import static com.oracle.tools.deferred.DeferredHelper.ensure;
/**
* The {@link DeferredAssert} is a helper class that defines commonly used
* "assertThat" methods for the purposes of unit, functional and integration
* testing.
*
* Copyright (c) 2012-2013. All Rights Reserved. Oracle Corporation.
* Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
*
* @author Brian Oliver
*/
public class DeferredAssert
{
/**
* Asserts that a {@link Deferred}, when it becomes available,
* will eventually (after the default amount of time) satisfy the
* specified {@link Matcher}.
*
* @param the type of value produced by the {@link Deferred}
*
* @param deferred the {@link Deferred}
* @param matcher the {@link Matcher}
*
* @throws AssertionError if the assertion fails
*/
public static void assertThat(Deferred deferred,
Matcher matcher) throws AssertionError
{
assertThat(null, deferred, matcher);
}
/**
* Asserts that a {@link Deferred}, when it becomes available,
* will eventually (after the default amount of time) satisfy the
* specified {@link Matcher}.
*
* @param the type of value produced by the {@link Deferred}
*
* @param message the message for the AssertionError (null ok)
* @param deferred the {@link Deferred}
* @param matcher the {@link Matcher}
*
* @throws AssertionError if the assertion fails
*/
public static void assertThat(String message,
Deferred deferred,
Matcher matcher) throws AssertionError
{
assertThat(message,
deferred,
matcher,
DeferredHelper.ORACLETOOLS_DEFERRED_RETRY_TIMEOUT_SECS,
TimeUnit.SECONDS);
}
/**
* Asserts that a {@link Deferred}, when it becomes available,
* will eventually (after the specified amount of time) satisfy the
* specified {@link Matcher}.
*
* @param the type of value produced by the {@link Deferred}
*
* @param deferred the {@link Deferred}
* @param matcher the {@link Matcher}
* @param totalRetryDuration the maximum duration for retrying
* @param totalRetryDurationUnits the {@link TimeUnit}s for the duration
*
* @throws AssertionError if the assertion fails
*/
public static void assertThat(Deferred deferred,
Matcher matcher,
long totalRetryDuration,
TimeUnit totalRetryDurationUnits) throws AssertionError
{
assertThat(null,
deferred,
matcher,
totalRetryDuration,
totalRetryDurationUnits);
}
/**
* Asserts that a {@link Deferred}, when it becomes available,
* will eventually (after the specified amount of time) satisfy the
* specified {@link Matcher}.
*
* @param the type of value produced by the {@link Deferred}
*
* @param message the message for the AssertionError (null ok)
* @param deferred the {@link Deferred}
* @param matcher the {@link Matcher}
* @param totalRetryDuration the maximum duration for retrying
* @param totalRetryDurationUnits the {@link TimeUnit}s for the duration
*
* @throws AssertionError if the assertion fails
*/
public static void assertThat(String message,
Deferred deferred,
Matcher matcher,
long totalRetryDuration,
TimeUnit totalRetryDurationUnits) throws AssertionError
{
// a DeferredMatcher does the heavy lifting
DeferredMatch deferredMatch = new DeferredMatch(deferred, matcher);
try
{
ensure(deferredMatch,
totalRetryDuration,
totalRetryDurationUnits);
}
catch (UnresolvableInstanceException e)
{
AssertionError error;
if (deferredMatch.getLastUsedMatchValue() == null)
{
error = new AssertionError((message == null ? "" : message + ": ") + "Failed to resolve a value for ["
+ deferredMatch.getDeferred() + "] to evaluate with matcher ["
+ deferredMatch.getMatcher() + "]");
error.initCause(e);
}
else
{
error = new AssertionError((message == null ? "" : message + ": ") + "Matcher [" + matcher
+ "] failed to match last resolved value ["
+ deferredMatch.getLastUsedMatchValue() + "] for ["
+ deferredMatch.getDeferred() + "]");
error.initCause(e);
}
throw error;
}
catch (Exception e)
{
AssertionError error = new AssertionError((message == null ? "" : message + ": ")
+ "Unexpected exception when attempting to resolve a value for ["
+ deferredMatch.getDeferred() + "] to evaluate with matcher ["
+ deferredMatch.getMatcher() + "]");
error.initCause(e);
throw error;
}
}
}