| /* |
| * 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.assertSame; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Test case for {@link StringBuilderWriter}. |
| */ |
| public class StringBuilderWriterTest { |
| private static final char[] FOOBAR_CHARS = {'F', 'o', 'o', 'B', 'a', 'r'}; |
| |
| @Test |
| public void testAppendChar() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.append('F').append('o').append('o'); |
| assertEquals("Foo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testAppendCharSequence() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.append("Foo").append("Bar"); |
| assertEquals("FooBar", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testAppendCharSequencePortion() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.append("FooBar", 3, 6).append(new StringBuffer("FooBar"), 0, 3); |
| assertEquals("BarFoo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testAppendConstructCapacity() throws IOException { |
| try (Writer writer = new StringBuilderWriter(100)) { |
| writer.append("Foo"); |
| assertEquals("Foo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testAppendConstructNull() throws IOException { |
| try (Writer writer = new StringBuilderWriter(null)) { |
| writer.append("Foo"); |
| assertEquals("Foo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testAppendConstructStringBuilder() { |
| final StringBuilder builder = new StringBuilder("Foo"); |
| try (StringBuilderWriter writer = new StringBuilderWriter(builder)) { |
| writer.append("Bar"); |
| assertEquals("FooBar", writer.toString()); |
| assertSame(builder, writer.getBuilder()); |
| } |
| } |
| |
| @Test |
| public void testClose() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.append("Foo"); |
| writer.close(); |
| writer.append("Bar"); |
| assertEquals("FooBar", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testWriteChar() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.write('F'); |
| assertEquals("F", writer.toString()); |
| writer.write('o'); |
| assertEquals("Fo", writer.toString()); |
| writer.write('o'); |
| assertEquals("Foo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testWriteCharArray() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.write(new char[] { 'F', 'o', 'o' }); |
| assertEquals("Foo", writer.toString()); |
| writer.write(new char[] { 'B', 'a', 'r' }); |
| assertEquals("FooBar", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testWriteCharArrayPortion() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.write(FOOBAR_CHARS, 3, 3); |
| assertEquals("Bar", writer.toString()); |
| writer.write(FOOBAR_CHARS, 0, 3); |
| assertEquals("BarFoo", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testWriteString() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.write("Foo"); |
| assertEquals("Foo", writer.toString()); |
| writer.write("Bar"); |
| assertEquals("FooBar", writer.toString()); |
| } |
| } |
| |
| @Test |
| public void testWriteStringPortion() throws IOException { |
| try (Writer writer = new StringBuilderWriter()) { |
| writer.write("FooBar", 3, 3); |
| assertEquals("Bar", writer.toString()); |
| writer.write("FooBar", 0, 3); |
| assertEquals("BarFoo", writer.toString()); |
| } |
| } |
| |
| } |