/*
* 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.harmony.tests.java.io;
import java.io.CharArrayReader;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.StringWriter;
public class CharArrayWriterTest extends junit.framework.TestCase {
char[] hw = { 'H', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'l', 'd' };
CharArrayWriter cw;
CharArrayReader cr;
/**
* java.io.CharArrayWriter#CharArrayWriter()
*/
public void test_Constructor() {
cw = new CharArrayWriter(90);
assertEquals("Created incorrect writer", 0, cw.size());
}
/**
* java.io.CharArrayWriter#CharArrayWriter(int)
*/
public void test_ConstructorI() {
cw = new CharArrayWriter();
assertEquals("Created incorrect writer", 0, cw.size());
}
/**
* java.io.CharArrayWriter#close()
*/
public void test_close() {
cw.close();
}
/**
* java.io.CharArrayWriter#flush()
*/
public void test_flush() {
cw.flush();
}
/**
* java.io.CharArrayWriter#reset()
*/
public void test_reset() throws IOException {
cw.write("HelloWorld", 5, 5);
cw.reset();
cw.write("HelloWorld", 0, 5);
cr = new CharArrayReader(cw.toCharArray());
char[] c = new char[100];
cr.read(c, 0, 5);
assertEquals("Reset failed to reset buffer", "Hello", new String(c, 0,
5));
}
/**
* java.io.CharArrayWriter#size()
*/
public void test_size() {
assertEquals("Returned incorrect size", 0, cw.size());
cw.write(hw, 5, 5);
assertEquals("Returned incorrect size", 5, cw.size());
}
/**
* java.io.CharArrayWriter#toCharArray()
*/
public void test_toCharArray() throws IOException {
cw.write("HelloWorld", 0, 10);
cr = new CharArrayReader(cw.toCharArray());
char[] c = new char[100];
cr.read(c, 0, 10);
assertEquals("toCharArray failed to return correct array",
"HelloWorld", new String(c, 0, 10));
}
/**
* java.io.CharArrayWriter#toString()
*/
public void test_toString() {
cw.write("HelloWorld", 5, 5);
cr = new CharArrayReader(cw.toCharArray());
assertEquals("Returned incorrect string", "World", cw.toString());
}
/**
* java.io.CharArrayWriter#write(char[], int, int)
*/
public void test_write$CII() throws IOException {
cw.write(hw, 5, 5);
cr = new CharArrayReader(cw.toCharArray());
char[] c = new char[100];
cr.read(c, 0, 5);
assertEquals("Writer failed to write correct chars", "World",
new String(c, 0, 5));
}
/**
* java.io.CharArrayWriter#write(char[], int, int)
*/
public void test_write$CII_2() {
// Regression for HARMONY-387
CharArrayWriter obj = new CharArrayWriter();
try {
obj.write(new char[] { '0' }, 0, -1);
fail();
} catch (IndexOutOfBoundsException expected) {
}
}
/**
* java.io.CharArrayWriter#write(int)
*/
public void test_writeI() throws IOException {
cw.write('T');
cr = new CharArrayReader(cw.toCharArray());
assertEquals("Writer failed to write char", 'T', cr.read());
}
/**
* java.io.CharArrayWriter#write(java.lang.String, int, int)
*/
public void test_writeLjava_lang_StringII() throws IOException {
cw.write("HelloWorld", 5, 5);
cr = new CharArrayReader(cw.toCharArray());
char[] c = new char[100];
cr.read(c, 0, 5);
assertEquals("Writer failed to write correct chars", "World",
new String(c, 0, 5));
}
/**
* java.io.CharArrayWriter#write(java.lang.String, int, int)
*/
public void test_writeLjava_lang_StringII_2()
throws StringIndexOutOfBoundsException {
// Regression for HARMONY-387
CharArrayWriter obj = new CharArrayWriter();
try {
obj.write((String) null, -1, 0);
fail("NullPointerException expected");
} catch (NullPointerException t) {
// Expected
}
}
/**
* java.io.CharArrayWriter#writeTo(java.io.Writer)
*/
public void test_writeToLjava_io_Writer() throws IOException {
cw.write("HelloWorld", 0, 10);
StringWriter sw = new StringWriter();
cw.writeTo(sw);
assertEquals("Writer failed to write correct chars", "HelloWorld", sw
.toString());
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.
*/
protected void setUp() {
cw = new CharArrayWriter();
}
/**
* Tears down the fixture, for example, close a network connection. This
* method is called after a test is executed.
*/
protected void tearDown() {
if (cr != null) {
cr.close();
}
cw.close();
}
/**
* java.io.CharArrayWriter#append(char)
*/
public void test_appendChar() throws IOException {
char testChar = ' ';
CharArrayWriter writer = new CharArrayWriter(10);
writer.append(testChar);
writer.flush();
assertEquals(String.valueOf(testChar), writer.toString());
writer.close();
}
/**
* java.io.CharArrayWriter#append(CharSequence)
*/
public void test_appendCharSequence() {
String testString = "My Test String";
CharArrayWriter writer = new CharArrayWriter(10);
writer.append(testString);
writer.flush();
assertEquals(testString, writer.toString());
writer.close();
}
/**
* java.io.CharArrayWriter#append(CharSequence, int, int)
*/
public void test_appendCharSequenceIntInt() {
String testString = "My Test String";
CharArrayWriter writer = new CharArrayWriter(10);
writer.append(testString, 1, 3);
writer.flush();
assertEquals(testString.substring(1, 3), writer.toString());
writer.close();
}
}