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/*
* Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Map;
import java.util.LinkedHashMap;
import java.util.List;
/**
* IntlTest is a base class for tests that can be run conveniently from
* the command line as well as under the Java test harness.
* <p>
* Sub-classes implement a set of public void methods named "Test*" or
* "test*" with no arguments. Each of these methods performs some
* test. Test methods should indicate errors by calling either err() or
* errln(). This will increment the errorCount field and may optionally
* print a message to the log. Debugging information may also be added to
* the log via the log and logln methods. These methods will add their
* arguments to the log only if the test is being run in verbose mode.
*/
public abstract class IntlTest {
//------------------------------------------------------------------------
// Everything below here is boilerplate code that makes it possible
// to add a new test by simply adding a method to an existing class.
//------------------------------------------------------------------------
protected IntlTest() {
// Populate testMethods with all the test methods.
Method[] methods = getClass().getDeclaredMethods();
for (Method method : methods) {
if (Modifier.isPublic(method.getModifiers())
&& method.getReturnType() == void.class
&& method.getParameterCount() == 0) {
String name = method.getName();
if (name.length() > 4) {
if (name.startsWith("Test") || name.startsWith("test")) {
testMethods.put(name, method);
}
}
}
}
}
protected void run(String[] args) throws Exception
{
// Set up the log and reference streams. We use PrintWriters in order to
// take advantage of character conversion. The JavaEsc converter will
// convert Unicode outside the ASCII range to Java's \\uxxxx notation.
log = new PrintWriter(System.out, true);
// Parse the test arguments. They can be either the flag
// "-verbose" or names of test methods. Create a list of
// tests to be run.
List<Method> testsToRun = new ArrayList<>(args.length);
for (String arg : args) {
switch (arg) {
case "-verbose":
verbose = true;
break;
case "-prompt":
prompt = true;
break;
case "-nothrow":
nothrow = true;
break;
case "-exitcode":
exitCode = true;
break;
default:
Method m = testMethods.get(arg);
if (m == null) {
System.out.println("Method " + arg + ": not found");
usage();
return;
}
testsToRun.add(m);
break;
}
}
// If no test method names were given explicitly, run them all.
if (testsToRun.isEmpty()) {
testsToRun.addAll(testMethods.values());
}
System.out.println(getClass().getName() + " {");
indentLevel++;
// Run the list of tests given in the test arguments
for (Method testMethod : testsToRun) {
int oldCount = errorCount;
writeTestName(testMethod.getName());
try {
testMethod.invoke(this, new Object[0]);
} catch (IllegalAccessException e) {
errln("Can't acces test method " + testMethod.getName());
} catch (InvocationTargetException e) {
errln("Uncaught exception thrown in test method "
+ testMethod.getName());
e.getTargetException().printStackTrace(this.log);
}
writeTestResult(errorCount - oldCount);
}
indentLevel--;
writeTestResult(errorCount);
if (prompt) {
System.out.println("Hit RETURN to exit...");
try {
System.in.read();
} catch (IOException e) {
System.out.println("Exception: " + e.toString() + e.getMessage());
}
}
if (nothrow) {
if (exitCode) {
System.exit(errorCount);
}
if (errorCount > 0) {
throw new IllegalArgumentException("encountered " + errorCount + " errors");
}
}
}
/**
* Adds the given message to the log if we are in verbose mode.
*/
protected void log(String message) {
logImpl(message, false);
}
protected void logln(String message) {
logImpl(message, true);
}
protected void logln() {
logImpl(null, true);
}
private void logImpl(String message, boolean newline) {
if (verbose) {
if (message != null) {
indent(indentLevel + 1);
log.print(message);
}
if (newline) {
log.println();
}
}
}
protected void err(String message) {
errImpl(message, false);
}
protected void errln(String message) {
errImpl(message, true);
}
private void errImpl(String message, boolean newline) {
errorCount++;
indent(indentLevel + 1);
log.print(message);
if (newline) {
log.println();
}
log.flush();
if (!nothrow) {
throw new RuntimeException(message);
}
}
protected int getErrorCount() {
return errorCount;
}
protected void writeTestName(String testName) {
indent(indentLevel);
log.print(testName);
log.flush();
needLineFeed = true;
}
protected void writeTestResult(int count) {
if (!needLineFeed) {
indent(indentLevel);
log.print("}");
}
needLineFeed = false;
if (count != 0) {
log.println(" FAILED");
} else {
log.println(" Passed");
}
}
/*
* Returns a spece-delimited hex String.
*/
protected static String toHexString(String s) {
StringBuilder sb = new StringBuilder(" ");
for (int i = 0; i < s.length(); i++) {
sb.append(Integer.toHexString(s.charAt(i)));
sb.append(' ');
}
return sb.toString();
}
private void indent(int distance) {
if (needLineFeed) {
log.println(" {");
needLineFeed = false;
}
log.print(SPACES.substring(0, distance * 2));
}
/**
* Print a usage message for this test class.
*/
void usage() {
System.out.println(getClass().getName() +
": [-verbose] [-nothrow] [-exitcode] [-prompt] [test names]");
System.out.println(" Available test names:");
for (String methodName : testMethods.keySet()) {
System.out.println("\t" + methodName);
}
}
private boolean prompt;
private boolean nothrow;
protected boolean verbose;
private boolean exitCode;
private PrintWriter log;
private int indentLevel;
private boolean needLineFeed;
private int errorCount;
private final Map<String, Method> testMethods = new LinkedHashMap<>();
private static final String SPACES = " ";
}
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