/*
* Aphelion
* Copyright (c) 2013 Joris van der Wel
*
* This file is part of Aphelion
*
* Aphelion is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* Aphelion 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 for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Aphelion. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, the following supplemental terms apply, based on section 7 of
* the GNU Affero General Public License (version 3):
* a) Preservation of all legal notices and author attributions
* b) Prohibition of misrepresentation of the origin of this material, and
* modified versions are required to be marked in reasonable ways as
* different from the original version (for example by appending a copyright notice).
*
* Linking this library statically or dynamically with other modules is making a
* combined work based on this library. Thus, the terms and conditions of the
* GNU Affero General Public License cover the whole combination.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent modules,
* and to copy and distribute the resulting executable under terms of your
* choice, provided that you also meet, for each linked independent module,
* the terms and conditions of the license of that module. An independent
* module is a module which is not derived from or based on this library.
*/
package aphelion.shared.event.promise;
import aphelion.shared.event.TickedEventLoop;
import aphelion.shared.physics.EnvironmentConf;
import org.junit.Test;
import static org.junit.Assert.*;
/**
*
* @author Joris
*/
public class PromiseTest
{
public PromiseTest()
{
}
private boolean called_A;
private boolean called_B;
@Test
public void testResolve_earlyRegistration()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals((Integer) 123, ret);
assertFalse(called_A);
assertFalse(called_B);
called_A = true;
return "Bla";
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals("Bla", ret);
assertTrue(called_A);
assertFalse(called_B);
called_B = true;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
p.resolve(123);
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testResolve_lateRegistration()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.resolve(123);
loop.loop();
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals((Integer) 123, ret);
assertFalse(called_A);
assertFalse(called_B);
called_A = true;
return "Bla";
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals("Bla", ret);
assertTrue(called_A);
assertFalse(called_B);
called_B = true;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testReject_earlyRegistration()
{
called_A = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assert false;
return null;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assert false;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assertEquals("abc", error.getMessage());
called_A = true;
}
});
loop.loop();
p.reject(new PromiseException("abc"));
loop.loop();
assertTrue(called_A);
}
@Test
public void testReject_lateRegistration()
{
called_A = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.reject(new PromiseException("abc"));
loop.loop();
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assert false;
return null;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assert false;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assertEquals("abc", error.getMessage());
called_A = true;
}
});
loop.loop();
assertTrue(called_A);
}
@Test
public void testResolve_ReturnedPromise_earlyRegistration()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
final AbstractPromise p2 = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals((Integer) 123, ret);
assertFalse(called_A);
assertFalse(called_B);
called_A = true;
return p2;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals("Bla", ret);
assertTrue(called_A);
assertFalse(called_B);
called_B = true;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
p.resolve(123);
loop.loop();
assertTrue(called_A);
assertFalse(called_B);
p2.resolve("Bla");
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testResolve_ReturnedPromise_lateRegistration1()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
final AbstractPromise p2 = new Promise(loop);
p.resolve(123);
loop.loop();
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals((Integer) 123, ret);
assertFalse(called_A);
assertFalse(called_B);
called_A = true;
return p2;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals("Bla", ret);
assertTrue(called_A);
assertFalse(called_B);
called_B = true;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
assertTrue(called_A);
assertFalse(called_B);
p2.resolve("Bla");
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testResolve_ReturnedPromise_lateRegistration2()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
final AbstractPromise p2 = new Promise(loop);
p.resolve(123);
p2.resolve("Bla");
loop.loop();
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals((Integer) 123, ret);
assertFalse(called_A);
assertFalse(called_B);
called_A = true;
return p2;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assertEquals("Bla", ret);
assertTrue(called_A);
assertFalse(called_B);
called_B = true;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testResolverException()
{
called_A = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
called_A = true;
throw new PromiseException("abc"); // this exception gets eaten
}
});
p.then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
assert false;
}
});
loop.loop();
p.resolve("hi");
loop.loop();
assertTrue(called_A);
}
@Test
public void testExceptionChaining()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
called_A = true;
throw new PromiseException("abc");
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
assert false;
return null;
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
called_B = true;
assertEquals("abc", error.getMessage());
}
});
loop.loop();
p.resolve("hi");
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
@Test
public void testExceptionChaining2()
{
called_A = false;
called_B = false;
TickedEventLoop loop = new TickedEventLoop(EnvironmentConf.TICK_LENGTH, 1, null);
loop.setup();
AbstractPromise p = new Promise(loop);
final AbstractPromise p2 = new Promise(loop);
p.then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
called_A = true;
return p2;
}
}).then(new PromiseResolved()
{
@Override
public Object resolved(Object ret) throws PromiseException
{
throw new PromiseException("abc");
}
}).then(new PromiseRejected()
{
@Override
public void rejected(PromiseException error)
{
called_B = true;
assertEquals("abc", error.getMessage());
}
});
loop.loop();
p.resolve("hi");
loop.loop();
p2.resolve("hi");
loop.loop();
assertTrue(called_A);
assertTrue(called_B);
}
}