| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * 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 android.signature.cts.tests; |
| |
| import android.signature.cts.ApiPresenceChecker; |
| import android.signature.cts.ClassProvider; |
| import android.signature.cts.FailureType; |
| import android.signature.cts.JDiffClassDescription; |
| import android.signature.cts.ResultObserver; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| import static org.hamcrest.CoreMatchers.equalTo; |
| import static org.hamcrest.CoreMatchers.startsWith; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| /** |
| * Test the error handling code used by the host tests. |
| */ |
| @RunWith(JUnit4.class) |
| public class FailureHandlingTest |
| extends ApiPresenceCheckerTest<FailureHandlingTest.FakeApiPresenceChecker> { |
| |
| /** |
| * A fake {@link ApiPresenceChecker} that always reports a failure and if that throws an |
| * exception then reports another failure. This mirrors the behavior of the |
| * {@link android.signature.cts.ApiComplianceChecker}. |
| */ |
| public static class FakeApiPresenceChecker extends ApiPresenceChecker { |
| |
| public FakeApiPresenceChecker(ClassProvider provider, ResultObserver resultObserver) { |
| super(provider, resultObserver); |
| } |
| |
| @Override |
| public void checkSignatureCompliance(JDiffClassDescription classDescription) { |
| try { |
| resultObserver.notifyFailure(FailureType.EXTRA_CLASS, |
| classDescription.getAbsoluteClassName(), "bad"); |
| } catch (Error | Exception e) { |
| resultObserver.notifyFailure( |
| FailureType.CAUGHT_EXCEPTION, |
| classDescription.getAbsoluteClassName(), |
| "Exception while checking class compliance!", |
| e); |
| } |
| } |
| } |
| |
| |
| @Override |
| protected FakeApiPresenceChecker createChecker(ResultObserver resultObserver, |
| ClassProvider provider) { |
| return new FakeApiPresenceChecker(provider, resultObserver); |
| } |
| |
| @Test |
| public void testNoFailures_DetectsFailures() { |
| AssertionError e = Assert.assertThrows(AssertionError.class, |
| () -> { |
| try (NoFailures observer = new NoFailures()) { |
| runWithApiChecker(observer, checker -> { |
| JDiffClassDescription description = createClass("fake"); |
| checker.checkSignatureCompliance(description); |
| }); |
| } |
| }); |
| assertThat(e.getMessage(), startsWith("Unexpected test failure")); |
| } |
| |
| @Test |
| public void testExpectFailure_DetectsNoFailures() { |
| AssertionError e = Assert.assertThrows(AssertionError.class, |
| () -> { |
| try (ExpectFailure observer = new ExpectFailure(FailureType.MISMATCH_FIELD)) { |
| runWithApiChecker(observer, checker -> { |
| // Do nothing. |
| }); |
| } |
| }); |
| assertThat(e.getMessage(), |
| equalTo("Expect one failure of type MISMATCH_FIELD but found 0 failures: []")); |
| } |
| |
| @Test |
| public void testExpectFailure_DetectsTooManyFailures() { |
| AssertionError e = Assert.assertThrows(AssertionError.class, |
| () -> { |
| try (ExpectFailure observer = new ExpectFailure(FailureType.MISMATCH_FIELD)) { |
| runWithApiChecker(observer, checker -> { |
| JDiffClassDescription description = createClass("fake"); |
| checker.checkSignatureCompliance(description); |
| description = createClass("fake2"); |
| checker.checkSignatureCompliance(description); |
| }); |
| } |
| }); |
| assertThat(e.getMessage(), |
| startsWith("Expect one failure of type MISMATCH_FIELD but found 2 failures:")); |
| } |
| } |