Merge pull request #77 from m-chrzan/stanik

Stanik

2 files changed, 235 insertions, 0 deletions

diff --git a/src/test/java/pl/edu/mimuw/cloudatlas/agent/MockExecutor.java b/src/test/java/pl/edu/mimuw/cloudatlas/agent/MockExecutor.java
new file mode 100644
index 0000000..1da50ad
--- /dev/null
+++ b/src/test/java/pl/edu/mimuw/cloudatlas/agent/MockExecutor.java
@@ -0,0 +1,24 @@
+package pl.edu.mimuw.cloudatlas.agent;
+
+import java.util.concurrent.LinkedBlockingQueue;
+
+import pl.edu.mimuw.cloudatlas.agent.modules.Module;
+import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
+
+/*
+ * Instead of passing messages to an EventBus, this one just collects them
+ * locally for inspection in unit tests.
+ */
+public class MockExecutor extends Executor {
+    public LinkedBlockingQueue<AgentMessage> messagesToPass;
+
+    public MockExecutor(Module module) {
+        super(module);
+        messagesToPass = new LinkedBlockingQueue<AgentMessage>();
+    }
+
+    @Override
+    public void passMessage(AgentMessage message) throws InterruptedException {
+        messagesToPass.put(message);
+    }
+}
diff --git a/src/test/java/pl/edu/mimuw/cloudatlas/agent/modules/StanikTest.java b/src/test/java/pl/edu/mimuw/cloudatlas/agent/modules/StanikTest.java
new file mode 100644
index 0000000..aeaf19f
--- /dev/null
+++ b/src/test/java/pl/edu/mimuw/cloudatlas/agent/modules/StanikTest.java
@@ -0,0 +1,211 @@
+package pl.edu.mimuw.cloudatlas.agent.modules;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.AbstractMap.SimpleImmutableEntry;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import pl.edu.mimuw.cloudatlas.agent.messages.AgentMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.GetStateMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.StateMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.ResponseMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.UpdateAttributesMessage;
+import pl.edu.mimuw.cloudatlas.agent.messages.UpdateQueriesMessage;
+import pl.edu.mimuw.cloudatlas.agent.MockExecutor;
+import pl.edu.mimuw.cloudatlas.model.Attribute;
+import pl.edu.mimuw.cloudatlas.model.AttributesMap;
+import pl.edu.mimuw.cloudatlas.model.Value;
+import pl.edu.mimuw.cloudatlas.model.ValueInt;
+import pl.edu.mimuw.cloudatlas.model.ValueQuery;
+import pl.edu.mimuw.cloudatlas.model.ValueString;
+import pl.edu.mimuw.cloudatlas.model.ValueTime;
+import pl.edu.mimuw.cloudatlas.model.ZMI;
+
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class StanikTest {
+    private Stanik stanik;
+    private MockExecutor executor;
+
+    @Before
+    public void setupEventBus() {
+        stanik = new Stanik();
+        executor = new MockExecutor(stanik);
+    }
+
+    @Test
+    public void getEmptyState() throws Exception {
+        GetStateMessage message = new GetStateMessage("test_msg", 0, ModuleType.TEST, 42);
+        stanik.handleTyped(message);
+        assertEquals(1, executor.messagesToPass.size());
+        ResponseMessage receivedMessage = (ResponseMessage) executor.messagesToPass.take();
+        assertEquals(ModuleType.TEST, receivedMessage.getDestinationModule());
+        assertEquals(ResponseMessage.Type.STATE, receivedMessage.getType());
+        assertEquals(42, receivedMessage.getRequestId());
+        StateMessage stateMessage = (StateMessage) receivedMessage;
+        ZMI zmi = stateMessage.getZMI();
+        assertNull(zmi.getFather());
+        assertTrue(zmi.getSons().isEmpty());
+        assertEquals(1, iterableSize(zmi.getAttributes()));
+        Map<Attribute, Entry<ValueQuery, ValueTime>> queries = stateMessage.getQueries();
+        assertEquals(0, iterableSize(queries.keySet()));
+    }
+
+    @Test
+    public void hierarchyIsDeepCopy() throws Exception {
+        GetStateMessage message = new GetStateMessage("test_msg", 0, ModuleType.TEST, 42);
+        stanik.handleTyped(message);
+        StateMessage receivedMessage = (StateMessage) executor.messagesToPass.poll();
+        assertNotNull(receivedMessage);
+        AttributesMap attributes = receivedMessage.getZMI().getAttributes();
+        assertNull(attributes.getOrNull("foo"));
+        attributes.add("foo", new ValueInt(1337l));
+
+        GetStateMessage newMessage = new GetStateMessage("test_msg2", 123, ModuleType.TEST, 43);
+        stanik.handleTyped(newMessage);
+        StateMessage newReceivedMessage = (StateMessage) executor.messagesToPass.poll();
+        AttributesMap newAttributes = newReceivedMessage.getZMI().getAttributes();
+        assertNull(newAttributes.getOrNull("foo"));
+    }
+
+    @Test
+    public void updateRootAttributes() throws Exception {
+        AttributesMap attributes = new AttributesMap();
+        attributes.add("foo", new ValueInt(1337l));
+        attributes.add("bar", new ValueString("baz"));
+        attributes.add("timestamp", new ValueTime("2012/12/21 04:20:00.000"));
+        UpdateAttributesMessage message = new UpdateAttributesMessage("test_msg", 0, "/", attributes);
+        stanik.handleTyped(message);
+        AttributesMap actualAttributes = stanik.getHierarchy().getAttributes();
+        assertEquals(3, iterableSize(actualAttributes));
+        assertEquals(new ValueInt(1337l), actualAttributes.get("foo"));
+        assertEquals(new ValueString("baz"), actualAttributes.get("bar"));
+        assertEquals(new ValueTime("2012/12/21 04:20:00.000"), actualAttributes.getOrNull("timestamp"));
+    }
+
+    @Test
+    public void updateWithNewZone() throws Exception {
+        AttributesMap attributes = new AttributesMap();
+        attributes.add("foo", new ValueInt(1337l));
+        attributes.add("bar", new ValueString("baz"));
+        attributes.add("name", new ValueString("new"));
+        attributes.add("timestamp", new ValueTime("2012/12/21 04:20:00.000"));
+        UpdateAttributesMessage message = new UpdateAttributesMessage("test_msg", 0, "/new", attributes);
+        stanik.handleTyped(message);
+        AttributesMap actualAttributes = stanik.getHierarchy().findDescendant("/new").getAttributes();
+        assertEquals(4, iterableSize(actualAttributes));
+        assertEquals(new ValueInt(1337l), actualAttributes.getOrNull("foo"));
+        assertEquals(new ValueString("baz"), actualAttributes.getOrNull("bar"));
+        assertEquals(new ValueString("new"), actualAttributes.getOrNull("name"));
+        assertEquals(new ValueTime("2012/12/21 04:20:00.000"), actualAttributes.getOrNull("timestamp"));
+    }
+
+    @Test
+    public void updateWithRemovedAttributes() throws Exception {
+        AttributesMap attributes = new AttributesMap();
+        attributes.add("foo", new ValueInt(1337l));
+        attributes.add("bar", new ValueString("baz"));
+        UpdateAttributesMessage message = new UpdateAttributesMessage("test_msg", 0, "/", attributes);
+        attributes.add("timestamp", new ValueTime("2012/12/21 04:20:00.000"));
+        stanik.handleTyped(message);
+
+        AttributesMap newAttributes = new AttributesMap();
+        newAttributes.add("timestamp", new ValueTime("2012/12/21 04:20:42.000"));
+        newAttributes.add("foo", new ValueInt(1338l));
+        UpdateAttributesMessage newMessage = new UpdateAttributesMessage("test_msg2", 0, "/", newAttributes);
+        stanik.handleTyped(newMessage);
+
+        AttributesMap actualAttributes = stanik.getHierarchy().getAttributes();
+        assertEquals(2, iterableSize(actualAttributes));
+        assertEquals(new ValueInt(1338l), actualAttributes.getOrNull("foo"));
+        assertEquals(new ValueTime("2012/12/21 04:20:42.000"), actualAttributes.getOrNull("timestamp"));
+    }
+
+    @Test
+    public void dontApplyUpdateWithOlderTimestamp() throws Exception {
+        AttributesMap attributes = new AttributesMap();
+        attributes.add("foo", new ValueInt(1337l));
+        attributes.add("timestamp", new ValueTime("2012/12/21 04:20:00.000"));
+        UpdateAttributesMessage message = new UpdateAttributesMessage("test_msg", 0, "/", attributes);
+        stanik.handleTyped(message);
+
+        AttributesMap oldAttributes = new AttributesMap();
+        oldAttributes.add("foo", new ValueInt(1336l));
+        oldAttributes.add("timestamp", new ValueTime("2012/12/21 04:19:00.000"));
+        UpdateAttributesMessage newMessage = new UpdateAttributesMessage("test_msg2", 0, "/", oldAttributes);
+        stanik.handleTyped(newMessage);
+
+        AttributesMap actualAttributes = stanik.getHierarchy().getAttributes();
+        assertEquals(2, iterableSize(actualAttributes));
+        assertEquals(new ValueInt(1337l), actualAttributes.getOrNull("foo"));
+        assertEquals(new ValueTime("2012/12/21 04:20:00.000"), actualAttributes.getOrNull("timestamp"));
+    }
+
+    @Test
+    public void addQuery() throws Exception {
+        HashMap<Attribute, Entry<ValueQuery, ValueTime>> queries = new HashMap<Attribute, Entry<ValueQuery, ValueTime>>();
+        queries.put(new Attribute("&query"), new SimpleImmutableEntry(new ValueQuery("SELECT 1 AS one"), new ValueTime(42l)));
+        UpdateQueriesMessage message = new UpdateQueriesMessage("test_msg", 0, queries);
+        stanik.handleTyped(message);
+
+        HashMap<Attribute, Entry<ValueQuery, ValueTime>> actualQueries = stanik.getQueries();
+        assertEquals(1, iterableSize(actualQueries.keySet()));
+        assertTrue(actualQueries.containsKey(new Attribute("&query")));
+        Entry<ValueQuery, ValueTime> timestampedQuery = actualQueries.get(new Attribute("&query"));
+        assertEquals(new ValueTime(42l), timestampedQuery.getValue());
+        assertEquals(new ValueQuery("SELECT 1 AS one"), timestampedQuery.getKey());
+    }
+
+    @Test
+    public void updateQueries() throws Exception {
+        HashMap<Attribute, Entry<ValueQuery, ValueTime>> queries = new HashMap<Attribute, Entry<ValueQuery, ValueTime>>();
+        queries.put(new Attribute("&query1"), new SimpleImmutableEntry(new ValueQuery("SELECT 1 AS one"), new ValueTime(42l)));
+        queries.put(new Attribute("&query3"), new SimpleImmutableEntry(new ValueQuery("SELECT 23 AS x"), new ValueTime(43l)));
+        queries.put(new Attribute("&query4"), new SimpleImmutableEntry(new ValueQuery("SELECT 1000 AS foo"), new ValueTime(43l)));
+        UpdateQueriesMessage message = new UpdateQueriesMessage("test_msg", 0, queries);
+        stanik.handleTyped(message);
+
+        HashMap<Attribute, Entry<ValueQuery, ValueTime>> otherQueries = new HashMap<Attribute, Entry<ValueQuery, ValueTime>>();
+        otherQueries.put(new Attribute("&query1"), new SimpleImmutableEntry(new ValueQuery("SELECT 2 AS one"), new ValueTime(41l)));
+        otherQueries.put(new Attribute("&query2"), new SimpleImmutableEntry(new ValueQuery("SELECT 42 AS answer"), new ValueTime(39l)));
+        otherQueries.put(new Attribute("&query3"), new SimpleImmutableEntry(new ValueQuery("SELECT 17 AS y"), new ValueTime(44l)));
+        UpdateQueriesMessage otherMessage = new UpdateQueriesMessage("test_msg", 0, otherQueries);
+        stanik.handleTyped(otherMessage);
+
+        HashMap<Attribute, Entry<ValueQuery, ValueTime>> actualQueries = stanik.getQueries();
+        assertEquals(4, iterableSize(actualQueries.keySet()));
+        assertTrue(actualQueries.containsKey(new Attribute("&query1")));
+        assertTrue(actualQueries.containsKey(new Attribute("&query2")));
+        assertTrue(actualQueries.containsKey(new Attribute("&query3")));
+        assertTrue(actualQueries.containsKey(new Attribute("&query4")));
+
+        Entry<ValueQuery, ValueTime> timestampedQuery1 = actualQueries.get(new Attribute("&query1"));
+        assertEquals(new ValueTime(42l), timestampedQuery1.getValue());
+        assertEquals(new ValueQuery("SELECT 1 AS one"), timestampedQuery1.getKey());
+
+        Entry<ValueQuery, ValueTime> timestampedQuery2 = actualQueries.get(new Attribute("&query2"));
+        assertEquals(new ValueTime(39l), timestampedQuery2.getValue());
+        assertEquals(new ValueQuery("SELECT 42 AS answer"), timestampedQuery2.getKey());
+
+        Entry<ValueQuery, ValueTime> timestampedQuery3 = actualQueries.get(new Attribute("&query3"));
+        assertEquals(new ValueTime(44l), timestampedQuery3.getValue());
+        assertEquals(new ValueQuery("SELECT 17 AS y"), timestampedQuery3.getKey());
+
+        Entry<ValueQuery, ValueTime> timestampedQuery4 = actualQueries.get(new Attribute("&query4"));
+        assertEquals(new ValueTime(43l), timestampedQuery4.getValue());
+        assertEquals(new ValueQuery("SELECT 1000 AS foo"), timestampedQuery4.getKey());
+    }
+
+    public <T> int iterableSize(Iterable<T> iterable) {
+        int count = 0;
+        for (T attribute : iterable) {
+            count++;
+        }
+
+        return count;
+    }
+}