80 lines
2.3 KiB
Java
80 lines
2.3 KiB
Java
package dev.kske.eventbus.core;
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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.*;
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/**
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* Tests the dispatching mechanism of the event bus.
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*
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* @author Kai S. K. Engelbart
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* @since 0.0.1
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*/
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@Polymorphic
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@Priority(150)
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public class DispatchTest {
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EventBus bus;
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static int hits;
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/**
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* Constructs an event bus and registers this test instance as an event listener.
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*
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* @since 0.0.1
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*/
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@BeforeEach
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public void registerListener() {
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bus = new EventBus();
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bus.registerListener(this);
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bus.registerListener(SimpleEvent.class, e -> {
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++hits;
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assertEquals(4, hits);
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});
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}
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/**
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* Tests {@link EventBus#dispatch(Object)} with multiple handler priorities, a polymorphic
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* handler and a static handler.
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*
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* @since 0.0.1
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*/
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@Test
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public void testDispatch() {
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bus.dispatch(new SimpleEventSub());
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bus.dispatch(new SimpleEvent());
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}
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/**
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* Tests {@link EventBus#printExecutionOrder(Class)} based on the currently registered handlers.
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*
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* @since 1.2.0
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*/
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@Test
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public void testPrintExecutionOrder() {
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String executionOrder = bus.printExecutionOrder(SimpleEvent.class);
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System.out.println(executionOrder);
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assertEquals(
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"Event handler execution order for class dev.kske.eventbus.core.SimpleEvent (3 handler(s)):\n"
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+ "==========================================================================================\n"
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+ "ReflectiveEventHandler[eventType=class dev.kske.eventbus.core.SimpleEvent, polymorphic=true, priority=200, method=void dev.kske.eventbus.core.DispatchTest.onSimpleEventFirst(), useParameter=false]\n"
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+ "ReflectiveEventHandler[eventType=class dev.kske.eventbus.core.SimpleEvent, polymorphic=false, priority=150, method=static void dev.kske.eventbus.core.DispatchTest.onSimpleEventSecond(), useParameter=false]\n"
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+ "CallbackEventHandler[eventType=class dev.kske.eventbus.core.SimpleEvent, polymorphic=false, priority=100]\n"
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+ "==========================================================================================",
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executionOrder);
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}
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@Event(SimpleEvent.class)
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@Priority(200)
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void onSimpleEventFirst() {
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++hits;
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assertTrue(hits == 1 || hits == 2);
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}
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@Event(SimpleEvent.class)
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@Polymorphic(false)
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static void onSimpleEventSecond() {
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++hits;
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assertEquals(3, hits);
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}
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}
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