/*
* Copyright 2014 Julien Viet
*
* Julien Viet 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 io.termd.core;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import java.util.Arrays;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
/**
* @author <a href="mailto:julien@julienviet.com">Julien Viet</a>
*/
public class TestBase {
private static final int ctrl(char c) {
return c - 64;
}
protected static final int[] CTRL_A_KEY = { ctrl('A') };
protected static final int[] CTRL_C_KEY = { ctrl('C') };
protected static final int[] CTRL_D_KEY = { ctrl('D') };
protected static final int[] CTRL_E_KEY = { ctrl('E') };
protected static final int[] UP_KEY = { 27, '[', 'A' };
protected static final int[] DOWN_KEY = { 27, '[', 'B' };
protected static final int[] FORWARD_KEY = { 27, '[', 'C' };
protected static final int[] FORWARD_WORD_SEQ = { 27, 'f' };
protected static final int[] BACKWARD_KEY = { 27, '[', 'D' };
protected static final int[] BACKWARD_WORD_SEQ = { 27, 'b' };
protected static final int[] BACKWARD_DELETE_KEY = { 8 };
protected static final int[] KILL_LINE = { ctrl('K') };
protected static final int[] META_BACKSPACE = { 27, 127 };
private volatile Throwable throwable;
private CountDownLatch latch;
private Exception testCompleteCalled;
private boolean awaitCalled;
protected void testComplete() {
if (testCompleteCalled != null) {
throw new IllegalStateException("testComplete() already invoked", testCompleteCalled);
}
testCompleteCalled = new Exception();
latch.countDown();
}
public static AssertionError failure(String msg) {
return new AssertionError(msg);
}
public static AssertionError failure(String msg, Throwable cause) {
AssertionError afe = new AssertionError(msg);
afe.initCause(cause);
return afe;
}
public static AssertionError failure(Throwable cause) {
if (cause instanceof AssertionError) {
return (AssertionError) cause;
} else {
AssertionError ae = new AssertionError();
ae.initCause(cause);
return ae;
}
}
protected void await(CountDownLatch latch) {
try {
assertTrue(latch.await(10, TimeUnit.SECONDS));
} catch (InterruptedException e) {
throw failure(e);
}
}
protected void await() {
if (awaitCalled) {
throw new IllegalStateException("await() already invoked");
}
boolean ok;
try {
awaitCalled = true;
ok = latch.await(2, TimeUnit.MINUTES);
} catch (InterruptedException e) {
throw failure("Test thread was interrupted", e);
}
if (!ok) {
throw failure("Test timed out");
} else {
if (throwable != null) {
throw failure(throwable);
}
}
}
private void handleThrowable(Throwable t) {
throwable = t;
latch.countDown();
if (t instanceof AssertionError) {
throw (AssertionError)t;
}
}
public void assertNull(Object object) {
try {
Assert.assertNull(object);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public <T> T assertNotNull(T object) {
try {
Assert.assertNotNull(object);
} catch (AssertionError e) {
handleThrowable(e);
}
return object;
}
public void fail(Throwable message) {
try {
Assert.fail(message.getMessage());
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void fail(String message) {
try {
Assert.fail(message);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void assertTrue(boolean condition) {
try {
Assert.assertTrue(condition);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void assertTrue(String msg, boolean condition) {
try {
Assert.assertTrue(msg, condition);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void assertFalse(boolean condition) {
try {
Assert.assertFalse(condition);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void assertEquals(Object expected, Object actual) {
try {
Assert.assertEquals(expected, actual);
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void assertEquals(int[] expected, int[] actual) {
try {
Assert.assertTrue("Was expecting " + Arrays.toString(expected) + " to be equals to " + Arrays.toString(actual), Arrays.equals(expected, actual));
} catch (AssertionError e) {
handleThrowable(e);
}
}
public void awaitLatch(CountDownLatch latch) throws InterruptedException {
assertTrue(latch.await(10, TimeUnit.SECONDS));
}
@Before
public void beforeTest() {
latch = new CountDownLatch(1);
throwable = null;
testCompleteCalled = null;
awaitCalled = false;
}
@After
public void afterTest() {
if (testCompleteCalled == null && !awaitCalled && throwable != null) {
throw new IllegalStateException("You either forget to call testComplete() or forgot to await() for an asynchronous test");
}
}
}