/*
* Copyright 2004-2008 the original author or authors.
*
* Licensed 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.springframework.webflow.engine;
import junit.framework.TestCase;
import org.springframework.webflow.engine.support.DefaultTargetStateResolver;
import org.springframework.webflow.execution.FlowExecutionException;
import org.springframework.webflow.execution.RequestContext;
import org.springframework.webflow.test.MockRequestControlContext;
public class TransitionTests extends TestCase {
private boolean exitCalled;
public void testExecuteTransitionFromState() {
Flow flow = new Flow("flow");
final TransitionableState source = new TransitionableState(flow, "state 1") {
public void exit(RequestControlContext context) {
exitCalled = true;
}
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
final TransitionableState target = new TransitionableState(flow, "state 2") {
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
TargetStateResolver targetResolver = new TargetStateResolver() {
public State resolveTargetState(Transition transition, State sourceState, RequestContext context) {
assertSame(source, sourceState);
return target;
}
};
MockRequestControlContext context = new MockRequestControlContext(flow);
context.setCurrentState(source);
Transition t = new Transition(targetResolver);
boolean stateExited = t.execute(source, context);
assertTrue(stateExited);
assertTrue(exitCalled);
assertSame(target, context.getCurrentState());
}
public void testExecuteTransitionWithNullSourceState() {
Flow flow = new Flow("flow");
final TransitionableState target = new TransitionableState(flow, "state 2") {
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
TargetStateResolver targetResolver = new TargetStateResolver() {
public State resolveTargetState(Transition transition, State sourceState, RequestContext context) {
assertNull(sourceState);
return target;
}
};
MockRequestControlContext context = new MockRequestControlContext(flow);
Transition t = new Transition(targetResolver);
boolean stateChanged = t.execute(null, context);
assertTrue(stateChanged);
assertSame(target, context.getCurrentState());
}
public void testExecuteTransitionNullTargetState() {
Flow flow = new Flow("flow");
final TransitionableState source = new TransitionableState(flow, "state 1") {
public void exit(RequestControlContext context) {
exitCalled = true;
}
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
TargetStateResolver targetResolver = new TargetStateResolver() {
public State resolveTargetState(Transition transition, State sourceState, RequestContext context) {
return null;
}
};
MockRequestControlContext context = new MockRequestControlContext(flow);
context.setCurrentState(source);
Transition t = new Transition(targetResolver);
boolean stateExited = t.execute(source, context);
assertFalse(stateExited);
assertFalse(exitCalled);
assertSame(source, context.getCurrentState());
}
public void testExecuteTransitionNullTargetStateResolver() {
Flow flow = new Flow("flow");
final TransitionableState source = new TransitionableState(flow, "state 1") {
public void exit(RequestControlContext context) {
exitCalled = true;
}
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
MockRequestControlContext context = new MockRequestControlContext(flow);
context.setCurrentState(source);
Transition t = new Transition();
boolean stateExited = t.execute(source, context);
assertFalse(stateExited);
assertFalse(exitCalled);
assertSame(source, context.getCurrentState());
}
public void testTransitionExecutionRefused() {
Flow flow = new Flow("flow");
final TransitionableState source = new TransitionableState(flow, "state 1") {
public void exit(RequestControlContext context) {
exitCalled = true;
}
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
final TransitionableState target = new TransitionableState(flow, "state 2") {
protected void doEnter(RequestControlContext context) throws FlowExecutionException {
}
};
TargetStateResolver targetResolver = new TargetStateResolver() {
public State resolveTargetState(Transition transition, State sourceState, RequestContext context) {
assertSame(source, sourceState);
return target;
}
};
MockRequestControlContext context = new MockRequestControlContext(flow);
context.setCurrentState(source);
Transition t = new Transition(targetResolver);
t.setExecutionCriteria(new TransitionCriteria() {
public boolean test(RequestContext context) {
return false;
}
});
boolean stateExited = t.execute(source, context);
assertFalse(stateExited);
assertFalse(exitCalled);
assertSame(source, context.getCurrentState());
}
protected TargetStateResolver to(String stateId) {
return new DefaultTargetStateResolver(stateId);
}
}