| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.tinkerpop.gremlin.util.function; |
| |
| import org.apache.tinkerpop.gremlin.TestHelper; |
| import org.apache.tinkerpop.gremlin.util.iterator.IteratorUtils; |
| import org.junit.Test; |
| |
| import static org.hamcrest.CoreMatchers.instanceOf; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertSame; |
| |
| /** |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class FunctionUtilsTest { |
| |
| @Test |
| public void shouldBeUtilityClass() throws Exception { |
| TestHelper.assertIsUtilityClass(FunctionUtils.class); |
| } |
| |
| @Test |
| public void shouldWrapInRuntimeIfFunctionThrows() { |
| final Exception t = new Exception(); |
| try { |
| FunctionUtils.wrapFunction(FunctionUtilsTest::throwIt).apply(t); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertSame(t, ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldNoReWrapInRuntimeIfFunctionThrows() { |
| final Exception t = new RuntimeException(); |
| try { |
| FunctionUtils.wrapFunction(FunctionUtilsTest::throwIt).apply(t); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertNull(ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldWrapInRuntimeIfConsumerThrows() { |
| final Exception t = new Exception(); |
| try { |
| FunctionUtils.wrapConsumer((Exception a) -> { |
| throw a; |
| }).accept(t); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertSame(t, ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldNoReWrapInRuntimeIfConsumerThrows() { |
| final Exception t = new RuntimeException(); |
| try { |
| FunctionUtils.wrapConsumer((Exception a) -> { |
| throw a; |
| }).accept(t); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertNull(ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldWrapInRuntimeIfBiConsumerThrows() { |
| final Exception t = new Exception(); |
| try { |
| FunctionUtils.wrapBiConsumer((Exception a, String x) -> { |
| throw a; |
| }).accept(t, "test"); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertSame(t, ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldNoReWrapInRuntimeIfBiConsumerThrows() { |
| final Exception t = new RuntimeException(); |
| try { |
| FunctionUtils.wrapBiConsumer((Exception a, String x) -> { |
| throw a; |
| }).accept(t, "test"); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertNull(ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldWrapInRuntimeIfSupplierThrows() { |
| final Exception t = new Exception(); |
| try { |
| FunctionUtils.wrapSupplier(() -> { |
| throw t; |
| }).get(); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertSame(t, ex.getCause()); |
| } |
| } |
| |
| @Test |
| public void shouldNoReWrapInRuntimeIfSupplierThrows() { |
| final Exception t = new RuntimeException(); |
| try { |
| FunctionUtils.wrapSupplier(() -> { |
| throw t; |
| }).get(); |
| } catch (Exception ex) { |
| assertThat(ex, instanceOf(RuntimeException.class)); |
| assertNull(ex.getCause()); |
| } |
| } |
| |
| static int throwIt(final Exception t) throws Exception { |
| throw t; |
| } |
| } |