/
ShouldHaveCauseInstance.java
56 lines (51 loc) · 2.38 KB
/
ShouldHaveCauseInstance.java
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/*
* 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.
*
* Copyright 2012-2024 the original author or authors.
*/
package org.assertj.core.error;
import static org.assertj.core.util.Strings.escapePercent;
import static org.assertj.core.util.Throwables.getStackTrace;
/**
* Creates an error message indicating that an assertion that verifies that a {@link Throwable} have a cause instance of
* a certain type.
*
* @author Jean-Christophe Gay
*/
public class ShouldHaveCauseInstance extends BasicErrorMessageFactory {
/**
* Creates a new <code>{@link org.assertj.core.error.BasicErrorMessageFactory}</code>.
*
* @param actual the actual value in the failed assertion.
* @param expectedCauseType the expected cause type.
* @return the created {@code ErrorMessageFactory}.
*/
public static ErrorMessageFactory shouldHaveCauseInstance(Throwable actual,
Class<? extends Throwable> expectedCauseType) {
return actual.getCause() == null
? new ShouldHaveCauseInstance(expectedCauseType, actual)
: new ShouldHaveCauseInstance(actual, expectedCauseType);
}
private ShouldHaveCauseInstance(Throwable actual, Class<? extends Throwable> expectedCauseType) {
super("%nExpecting a throwable with cause being an instance of:%n" +
" %s%n" +
"but was an instance of:%n" +
" %s%n" +
"Throwable that failed the check:%n" +
"%n" + escapePercent(getStackTrace(actual)),
expectedCauseType, actual.getCause().getClass());
}
private ShouldHaveCauseInstance(Class<? extends Throwable> expectedCauseType, Throwable actual) {
super("%nExpecting a throwable with cause being an instance of:%n" +
" %s%n" +
"but current throwable has no cause.%n" +
"Throwable that failed the check:%n" + escapePercent(getStackTrace(actual)), expectedCauseType);
}
}