| /* |
| * Copyright 2012-present Facebook, Inc. |
| * |
| * 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 com.facebook.buck.util.concurrent; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| import com.google.common.util.concurrent.SettableFuture; |
| |
| import org.junit.Test; |
| |
| public class MoreFuturesTest { |
| |
| @Test |
| public void testIsSuccess() { |
| SettableFuture<Object> unresolvedFuture = SettableFuture.create(); |
| assertFalse(MoreFutures.isSuccess(unresolvedFuture)); |
| |
| SettableFuture<Object> failedFuture = SettableFuture.create(); |
| failedFuture.setException(new RuntimeException()); |
| assertFalse(MoreFutures.isSuccess(failedFuture)); |
| |
| SettableFuture<Object> cancelledFuture = SettableFuture.create(); |
| cancelledFuture.cancel(/* mayInterruptIfRunning */ true); |
| assertFalse(MoreFutures.isSuccess(cancelledFuture)); |
| |
| SettableFuture<Object> resolvedFuture = SettableFuture.create(); |
| resolvedFuture.set(new Object()); |
| assertTrue(MoreFutures.isSuccess(resolvedFuture)); |
| } |
| |
| @Test |
| public void testGetFailure() { |
| Throwable failure = new Throwable(); |
| ListenableFuture<Object> failedFuture = Futures.immediateFailedFuture(failure); |
| assertEquals(failure, MoreFutures.getFailure(failedFuture)); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| public void testGetFailureRejectsNullFuture() { |
| MoreFutures.getFailure(null); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testGetFailureRequiresSatisfiedFuture() { |
| MoreFutures.getFailure(SettableFuture.create()); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testGetFailureRequiresUnsuccessfulFuture() { |
| ListenableFuture<Object> success = Futures.immediateFuture(new Object()); |
| MoreFutures.getFailure(success); |
| } |
| |
| @Test(expected = IllegalStateException.class) |
| public void testGetFailureRequiresNonCancelledFuture() { |
| ListenableFuture<?> canceledFuture = SettableFuture.create(); |
| canceledFuture.cancel(/* mayInterruptIfRunning */ true); |
| MoreFutures.getFailure(canceledFuture); |
| } |
| } |