/* * The MIT License (MIT) * * Copyright (c) 2017-2020 Yegor Bugayenko * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package org.cactoos.scalar; import java.io.IOException; import java.util.IllegalFormatException; import java.util.IllegalFormatWidthException; import org.cactoos.iterable.IterableOf; import org.junit.Test; import org.llorllale.cactoos.matchers.Assertion; import org.llorllale.cactoos.matchers.ScalarHasValue; /** * Test case for {@link ScalarWithFallback}. * * @since 0.31 * @checkstyle JavadocMethodCheck (500 lines) * @checkstyle ClassDataAbstractionCouplingCheck (500 lines) */ @SuppressWarnings("unchecked") public final class ScalarWithFallbackTest { @Test public void usesMainFunc() throws Exception { final String message = "Main function's result #1"; new Assertion<>( "Must use the main function if no exception", new ScalarWithFallback<>( () -> message, new IterableOf<>( new FallbackFrom<>( new IterableOf<>(IOException.class), Throwable::getMessage ) ) ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesMainFuncFromExceptionAndFallback() throws Exception { final String message = "Main function's result #1 (exp & flbck)"; new Assertion<>( "Using the main function if no exception (exp & flbck)", new ScalarWithFallback<>( () -> message, IOException.class, Throwable::getMessage ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesMainFuncFromIterableExceptionAndFallback() throws Exception { final String message = "Main function's result #1 (exp iterable & flbck)"; new Assertion<>( "Using the main function if no exception (exp iterable & flbck)", new ScalarWithFallback<>( () -> message, new IterableOf<>(IOException.class), Throwable::getMessage ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesFallback() throws Exception { final String message = "Fallback from IOException"; new Assertion<>( "Must use a single fallback in case of exception", new ScalarWithFallback<>( () -> { throw new IOException("Failure with IOException"); }, new IterableOf<>( new FallbackFrom<>( new IterableOf<>(IOException.class), exp -> message ) ) ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesFallbackFromExceptionAndFallback() throws Exception { final String message = "Fallback from IOException (exp & flbck)"; new Assertion<>( "Using a single fallback in case of exception (exp & flbck)", new ScalarWithFallback<>( () -> { throw new IOException("Failure with IOException (exp & flbck)"); }, IOException.class, exp -> message ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesFallbackFromIterableExceptionAndFallback() throws Exception { final String message = "Fallback from IOException (exp iterable & flbck)"; new Assertion<>( "Using a single fallback in case of exception (exp iterable & flbck)", new ScalarWithFallback<>( () -> { throw new IOException("Failure with IOException (exp iterable & flbck)"); }, new IterableOf<>(IOException.class), exp -> message ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesFallbackOfInterruptedException() throws Exception { final String message = "Fallback from InterruptedException"; new Assertion<>( "Must use a fallback from Interrupted in case of exception", new ScalarWithFallback<>( () -> { throw new InterruptedException( "Failure with InterruptedException" ); }, new IterableOf<>( new FallbackFrom<>( new IterableOf<>(InterruptedException.class), exp -> message ) ) ), new ScalarHasValue<>(message) ).affirm(); } @Test public void usesTheClosestFallback() throws Exception { final String expected = "Fallback from IllegalFormatException"; new Assertion<>( "Must find the closest fallback", new ScalarWithFallback<>( () -> { throw new IllegalFormatWidthException(1); }, new IterableOf<>( new FallbackFrom<>( new IterableOf<>(IllegalArgumentException.class), exp -> "Fallback from IllegalArgumentException" ), new FallbackFrom<>( new IterableOf<>(IllegalFormatException.class), exp -> expected ) ) ), new ScalarHasValue<>(expected) ).affirm(); } @Test(expected = Exception.class) public void noFallbackIsProvided() throws Exception { new ScalarWithFallback<>( () -> { throw new IllegalFormatWidthException(1); }, new IterableOf<>() ).value(); } }