| /* |
| * Copyright (C) 2016 The Guava Authors |
| * |
| * 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.google.common.util.concurrent; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static com.google.common.util.concurrent.Futures.getDone; |
| import static com.google.common.util.concurrent.Futures.immediateCancelledFuture; |
| import static com.google.common.util.concurrent.Futures.immediateFailedFuture; |
| import static com.google.common.util.concurrent.Futures.immediateFuture; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import java.util.concurrent.CancellationException; |
| import java.util.concurrent.ExecutionException; |
| import junit.framework.TestCase; |
| |
| /** Unit tests for {@link Futures#getDone}. */ |
| @GwtCompatible |
| public class FuturesGetDoneTest extends TestCase { |
| public void testSuccessful() throws ExecutionException { |
| assertThat(getDone(immediateFuture("a"))).isEqualTo("a"); |
| } |
| |
| public void testSuccessfulNull() throws ExecutionException { |
| assertThat(getDone(immediateFuture((String) null))).isEqualTo(null); |
| } |
| |
| public void testFailed() { |
| Exception failureCause = new Exception(); |
| try { |
| getDone(immediateFailedFuture(failureCause)); |
| fail(); |
| } catch (ExecutionException expected) { |
| assertThat(expected).hasCauseThat().isEqualTo(failureCause); |
| } |
| } |
| |
| public void testCancelled() throws ExecutionException { |
| try { |
| getDone(immediateCancelledFuture()); |
| fail(); |
| } catch (CancellationException expected) { |
| } |
| } |
| |
| public void testPending() throws ExecutionException { |
| try { |
| getDone(SettableFuture.create()); |
| fail(); |
| } catch (IllegalStateException expected) { |
| } |
| } |
| } |