395 lines
14 KiB
Java
395 lines
14 KiB
Java
/*
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* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 5067405
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* @summary Basic test for classes which implement Appendable.
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*/
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.ByteArrayOutputStream;
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import java.io.CharArrayWriter;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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interface BasicRunnable extends Runnable {
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void init(Appendable a, String csq, String exp);
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Appendable reset(Appendable csq);
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}
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public class Basic {
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private static final String s = "Beware the Jabberwock, my son!";
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private static CharArrayWriter gw = new CharArrayWriter();
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private static ByteArrayOutputStream gos = new ByteArrayOutputStream();
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private static File newFile() {
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File f = null;
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try {
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f = File.createTempFile("append", ".txt");
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f.deleteOnExit();
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} catch (IOException x) {
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fail(x);
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}
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return f;
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}
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private static File gf = newFile();
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private static int fail = 0;
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private static int pass = 0;
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private static Throwable first;
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static void pass() {
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pass++;
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}
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static void fail(Throwable ex) {
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if (first == null)
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first = ex;
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System.err.println("FAILED: unexpected exception");
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fail++;
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}
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static void fail(String fs, Throwable ex) {
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String s = "'" + fs + "': " + ex.getClass().getName() + " not thrown";
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if (first == null)
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first = ex;
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System.err.println("FAILED: " + s);
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fail++;
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}
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static void fail(String fs, String exp, String got) {
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String s = "'" + fs + "': Expected '" + exp + "', got '" + got + "'";
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if (first == null)
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first = new RuntimeException(s);
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System.err.println("FAILED: " + s);
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fail++;
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}
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static void ck(String s, String exp, String got) {
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if (!exp.equals(got))
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fail(s, exp, got);
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else
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pass();
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}
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private static BasicRunnable testBufferedWriter =
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new BasicRunnable() {
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private String csn, exp;
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public void init(Appendable bw, String csn, String exp) {
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try {
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((BufferedWriter)bw).flush();
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} catch (IOException x) {
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fail(x);
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}
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("BufferedWriter.append(" + csn + ")", exp, gw.toString());
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}
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public Appendable reset(Appendable bw) {
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gw.reset();
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return bw;
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}};
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private static BasicRunnable testCharArrayWriter =
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new BasicRunnable() {
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private String csn, exp;
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private CharArrayWriter cw;
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public void init(Appendable cw, String csn, String exp) {
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this.cw = (CharArrayWriter)cw;
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("CharArrayWriter.append(" + csn + ")", exp, cw.toString());
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}
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public Appendable reset(Appendable cw) {
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((CharArrayWriter)cw).reset();
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return cw;
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}};
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private static BasicRunnable testFileWriter =
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new BasicRunnable() {
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private String csn, exp;
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public void init(Appendable fw, String csn, String exp) {
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try {
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((FileWriter)fw).flush();
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} catch (IOException x) {
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fail(x);
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}
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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StringBuilder sb = new StringBuilder();
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try {
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BufferedReader in = new BufferedReader(new FileReader(gf));
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String line;
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while (true) {
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if ((line = in.readLine()) == null)
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break;
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sb.append(line);
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}
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} catch (IOException x) {
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fail(x);
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}
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ck("FileWriter.append(" + csn + ")", exp, sb.toString());
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}
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public Appendable reset(Appendable fw) {
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try {
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fw = new FileWriter(gf);
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} catch (IOException x) {
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fail(x);
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}
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return fw;
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}};
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private static BasicRunnable testOutputStreamWriter =
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new BasicRunnable() {
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private String csn, exp;
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public void init(Appendable osw, String csn, String exp) {
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try {
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((OutputStreamWriter)osw).flush();
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} catch (IOException x) {
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fail(x);
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}
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("OutputStreamWriter.append(" + csn + ")", exp, gos.toString());
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}
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public Appendable reset(Appendable osw) {
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gos.reset();
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return osw;
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}};
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private static BasicRunnable testPrintWriter =
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new BasicRunnable() {
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private String csn, exp;
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public void init(Appendable pw, String csn, String exp) {
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((PrintWriter)pw).flush();
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("PrintWriter.append(" + csn + ")", exp, gw.toString());
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}
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public Appendable reset(Appendable pw) {
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gw.reset();
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return pw;
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}};
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private static BasicRunnable testStringWriter =
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new BasicRunnable() {
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private String csn, exp;
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private StringWriter sw;
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public void init(Appendable sw, String csn, String exp) {
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this.sw = (StringWriter)sw;
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("StringWriter.append(" + csn + ")", exp, sw.toString());
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}
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public Appendable reset(Appendable sw) {
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return new StringWriter();
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}};
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private static BasicRunnable testPrintStream =
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new BasicRunnable() {
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private String csn, exp;
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public void init(Appendable ps, String csn, String exp) {
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((PrintStream)ps).flush();
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("PrintStream.append(" + csn + ")", exp, gos.toString());
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}
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public Appendable reset(Appendable ps) {
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gos.reset();
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return ps;
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}};
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private static BasicRunnable testCharBuffer =
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new BasicRunnable() {
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private String csn, exp;
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private CharBuffer cb;
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public void init(Appendable cb, String csn, String exp) {
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this.cb = (CharBuffer)cb;
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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cb.limit(cb.position()).rewind();
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ck("CharBuffer.append(" + csn + ")", exp, cb.toString());
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}
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public Appendable reset(Appendable cb) {
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((CharBuffer)cb).clear();
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return cb;
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}};
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private static BasicRunnable testStringBuffer =
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new BasicRunnable() {
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private String csn, exp;
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private StringBuffer sb;
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public void init(Appendable sb, String csn, String exp) {
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this.sb = (StringBuffer)sb;
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("StringBuffer.append(" + csn + ")", exp, sb.toString());
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}
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public Appendable reset(Appendable sb) {
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return new StringBuffer();
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}};
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private static BasicRunnable testStringBuilder =
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new BasicRunnable() {
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private String csn, exp;
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private StringBuilder sb;
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public void init(Appendable sb, String csn, String exp) {
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this.sb = (StringBuilder)sb;
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this.csn = csn;
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this.exp = exp;
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}
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public void run() {
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ck("StringBuilder.append(" + csn + ")", exp, sb.toString());
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}
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public Appendable reset(Appendable sb) {
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return new StringBuilder();
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}};
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private static void test(Appendable a, CharSequence csq, BasicRunnable thunk) {
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// appends that should always work
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int [][] sp = { { 0, 0 }, { 11, 11 }, { 11, 21 }, { 0, 7 },
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{ 0, s.length() }, { s.length(), s.length() },
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};
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for (int j = 0; j < sp.length; j++) {
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int start = sp[j][0];
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int end = sp[j][1];
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try {
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thunk.init(a.append(csq, start, end),
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csq.getClass().getName(),
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s.subSequence(start, end).toString());
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thunk.run();
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a = thunk.reset(a);
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} catch (IOException x) {
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fail(x);
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}
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}
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// appends that should always throw IndexOutOfBoundsException
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int [][] sf = { { -1, 0 }, { 0, -1 }, { 11, 10 },
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{ 0, s.length() + 1},
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};
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for (int j = 0; j < sf.length; j++) {
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int start = sf[j][0];
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int end = sf[j][1];
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try {
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a.append(csq, start, end);
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fail("start = " + start + ", end = " + end,
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new IndexOutOfBoundsException());
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a = thunk.reset(a);
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} catch (IndexOutOfBoundsException x) {
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pass();
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} catch (IOException x) {
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fail(x);
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}
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}
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// appends of null
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int start = 1;
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int end = 2;
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try {
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thunk.init(a.append(null, start, end), "null",
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"null".subSequence(start, end).toString());
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thunk.run();
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a = thunk.reset(a);
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} catch (IOException x) {
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fail(x);
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}
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}
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public static void main(String [] args) throws Exception {
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// CharSequences
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CharBuffer cb = CharBuffer.allocate(128).put(s);
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cb.limit(s.length()).rewind();
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CharBuffer dcb = ByteBuffer.allocateDirect(128).asCharBuffer().put(s);
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dcb.limit(s.length()).rewind();
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CharSequence [] ca = { s,
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new StringBuffer(s),
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new StringBuilder(s),
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cb,
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dcb,
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};
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// Appendables/Writers
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Object [][] wa = { { new CharArrayWriter(), testCharArrayWriter },
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{ new BufferedWriter(gw), testBufferedWriter },
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// abstract, no implementing classes in jdk
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// { new FilterWriter(), testFilterWriter },
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{ new FileWriter(gf), testFileWriter },
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{ new OutputStreamWriter(gos), testOutputStreamWriter },
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// covered by previous two test cases
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// { new PipedWriter(gw), testPipedWriter },
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{ new PrintWriter(gw), testPrintWriter },
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{ new StringWriter(), testStringWriter },
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};
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for (int i = 0; i < ca.length; i++) {
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CharSequence a = ca[i];
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for (int j = 0; j < wa.length; j++)
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test((Writer)wa[j][0], a, (BasicRunnable)wa[j][1]);
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// other Appendables
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test(new PrintStream(gos), a, testPrintStream);
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test(CharBuffer.allocate(128), a, testCharBuffer);
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test(ByteBuffer.allocateDirect(128).asCharBuffer(), a, testCharBuffer);
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test(new StringBuffer(), a, testStringBuffer);
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test(new StringBuilder(), a, testStringBuilder);
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}
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if (fail != 0)
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throw new RuntimeException((fail + pass) + " tests: "
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+ fail + " failure(s), first", first);
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else
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System.out.println("all " + (fail + pass) + " tests passed");
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}
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}
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