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- /*
- * SonarQube
- * Copyright (C) 2009-2021 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
- package org.sonar.test;
-
- import java.util.Objects;
- import javax.annotation.CheckForNull;
- import javax.annotation.Nullable;
- import javax.annotation.concurrent.Immutable;
- import org.hamcrest.Description;
- import org.hamcrest.Matcher;
- import org.hamcrest.TypeSafeMatcher;
-
- /**
- * Matchers designed to be used as an argument of {@link org.junit.rules.ExpectedException#expectCause(Matcher)} such as:
- *
- * <pre>
- * expectedException.expect(VisitException.class);
- * expectedException.expectCause(hasType(IllegalArgumentException.class).andMessage("file and otherFile Components can not be the same"));
- * </pre>
- *
- * Class strongly inspired from {@code CauseMatcher} class from {@code http://blog.codeleak.pl/2014/03/junit-expectedexception-rule-beyond.html}
- */
- @Immutable
- public class ExceptionCauseMatcher extends TypeSafeMatcher<Throwable> {
- private static final String EXPECT_NO_MESSAGE_CONSTANT = "RQXG8QTUCXOT7HZ3APPKBKUE5";
-
- private final Class<? extends Throwable> type;
- @CheckForNull
- private final String expectedMessage;
-
- private ExceptionCauseMatcher(Class<? extends Throwable> type, @Nullable String expectedMessage) {
- this.type = type;
- this.expectedMessage = expectedMessage;
- }
-
- public static ExceptionCauseMatcher hasType(Class<? extends Throwable> type) {
- return new ExceptionCauseMatcher(type, null);
- }
-
- public ExceptionCauseMatcher andMessage(String expectedMessage) {
- return new ExceptionCauseMatcher(type, Objects.requireNonNull(expectedMessage));
- }
-
- public ExceptionCauseMatcher andNoMessage() {
- return new ExceptionCauseMatcher(type, EXPECT_NO_MESSAGE_CONSTANT);
- }
-
- @Override
- protected boolean matchesSafely(Throwable item) {
- if (!type.isAssignableFrom(item.getClass())) {
- return false;
- }
- if (expectedMessage == null) {
- return true;
- }
- if (EXPECT_NO_MESSAGE_CONSTANT.equals(expectedMessage)) {
- return item.getMessage() == null;
- }
- return item.getMessage().contains(expectedMessage);
- }
-
- @Override
- public void describeTo(Description description) {
- description.appendText("of type ")
- .appendValue(type);
- if (EXPECT_NO_MESSAGE_CONSTANT.equals(expectedMessage)) {
- description.appendText(" and no message");
- } else if (expectedMessage != null) {
- description.appendText(" and message ")
- .appendValue(expectedMessage);
- }
- description.appendText(" but");
- }
- }
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