| /* |
| * 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.commons.io.output; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertFalse; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import static org.junit.jupiter.api.Assertions.fail; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.UUID; |
| |
| import org.apache.commons.io.TaggedIOException; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Tests {@link TaggedWriter}. |
| */ |
| public class TaggedWriterTest { |
| |
| @Test |
| public void testBrokenWriter() { |
| final IOException exception = new IOException("test exception"); |
| final TaggedWriter writer = new TaggedWriter(new BrokenWriter(exception)); |
| |
| // Test the write() method |
| try { |
| writer.write(new char[] { 'x' }, 0, 1); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e) { |
| assertTrue(writer.isCauseOf(e)); |
| try { |
| writer.throwIfCauseOf(e); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e2) { |
| assertEquals(exception, e2); |
| } |
| } |
| |
| // Test the flush() method |
| try { |
| writer.flush(); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e) { |
| assertTrue(writer.isCauseOf(e)); |
| try { |
| writer.throwIfCauseOf(e); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e2) { |
| assertEquals(exception, e2); |
| } |
| } |
| |
| // Test the close() method |
| try { |
| writer.close(); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e) { |
| assertTrue(writer.isCauseOf(e)); |
| try { |
| writer.throwIfCauseOf(e); |
| fail("Expected exception not thrown."); |
| } catch (final IOException e2) { |
| assertEquals(exception, e2); |
| } |
| } |
| } |
| |
| @Test |
| public void testNormalWriter() throws IOException { |
| try (StringBuilderWriter buffer = new StringBuilderWriter()) { |
| try (Writer writer = new TaggedWriter(buffer)) { |
| writer.write('a'); |
| writer.write(new char[] { 'b' }); |
| writer.write(new char[] { 'c' }, 0, 1); |
| writer.flush(); |
| } |
| assertEquals(3, buffer.getBuilder().length()); |
| assertEquals('a', buffer.getBuilder().charAt(0)); |
| assertEquals('b', buffer.getBuilder().charAt(1)); |
| assertEquals('c', buffer.getBuilder().charAt(2)); |
| } |
| } |
| |
| @Test |
| public void testOtherException() throws Exception { |
| final IOException exception = new IOException("test exception"); |
| try (TaggedWriter writer = new TaggedWriter(ClosedWriter.INSTANCE)) { |
| assertFalse(writer.isCauseOf(exception)); |
| assertFalse(writer.isCauseOf(new TaggedIOException(exception, UUID.randomUUID()))); |
| writer.throwIfCauseOf(exception); |
| writer.throwIfCauseOf(new TaggedIOException(exception, UUID.randomUUID())); |
| } |
| } |
| |
| } |