initial implementation of triggers. issue 6

test/se/hal/TriggerManagerTest.java

@@ -0,0 +1,95 @@
+package se.hal;
+
+import org.junit.Test;
+import se.hal.intf.HalAction;
+import se.hal.intf.HalTrigger;
+import se.hal.struct.TriggerFlow;
+
+import java.util.Collections;
+
+import static org.junit.Assert.*;
+
+/**
+ *
+ */
+public class TriggerManagerTest {
+
+    private TriggerManager manager = new TriggerManager();
+
+
+    @Test
+    public void registerAvailableTrigger(){
+        assertEquals(Collections.EMPTY_LIST, manager.getAvailableTriggers());
+
+        manager.addAvailableTrigger(TestTrigger.class);
+        manager.addAvailableTrigger(TestTrigger.class);
+        assertEquals(1, manager.getAvailableTriggers().size());
+        assertTrue(manager.getAvailableTriggers().contains(TestTrigger.class));
+    }
+
+    @Test
+    public void registerAvailableAction(){
+        assertEquals(Collections.EMPTY_LIST, manager.getAvailableActions());
+
+        manager.addAvailableAction(TestAction.class);
+        manager.addAvailableAction(TestAction.class);
+        assertEquals(1, manager.getAvailableActions().size());
+        assertTrue(manager.getAvailableActions().contains(TestAction.class));
+    }
+
+
+    @Test
+    public void register(){
+        registerAvailableTrigger();
+
+        TriggerFlow flow = new TriggerFlow();
+        flow.addTrigger(new TestTrigger(true));
+        TestAction action = new TestAction();
+        flow.addAction(action);
+        manager.register(flow);
+        manager.evaluateAndExecute();
+        assertEquals(1, action.nrOfExecutions);
+    }
+
+
+    @Test
+    public void evaluateAndExecute(){
+        registerAvailableTrigger();
+
+        TriggerFlow flow = new TriggerFlow();
+        TestTrigger trigger = new TestTrigger(true);
+        flow.addTrigger(trigger);
+        TestAction action = new TestAction();
+        flow.addAction(action);
+        manager.register(flow);
+
+        manager.evaluateAndExecute();
+        assertEquals("Action executed nr of times",
+                1, action.nrOfExecutions);
+
+        manager.evaluateAndExecute();
+        assertEquals("Action executed nr of times",
+                1, action.nrOfExecutions);
+
+    }
+
+    /////////////////////////////////////////////////////////////////////////////
+
+    private static class TestTrigger implements HalTrigger {
+        boolean evaluation;
+        TestTrigger(boolean b){ evaluation = b; }
+        @Override
+        public boolean evaluate() { return evaluation; }
+
+        @Override
+        public void reset() { evaluation = false; }
+    }
+
+
+    private class TestAction implements HalAction {
+        int nrOfExecutions;
+        @Override
+        public void execute() { nrOfExecutions++; }
+    }
+
+}