diff --git a/src/test/java/net/onrc/onos/api/flowmanager/FlowIdTest.java b/src/test/java/net/onrc/onos/api/flowmanager/FlowIdTest.java
new file mode 100644
index 0000000..49981b0
--- /dev/null
+++ b/src/test/java/net/onrc/onos/api/flowmanager/FlowIdTest.java
@@ -0,0 +1,40 @@
+package net.onrc.onos.api.flowmanager;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class FlowIdTest {
+
+    /**
+     * Tests FlowId's equals method.
+     */
+    @Test
+    public void testEquals() {
+        FlowId flow1 = new FlowId(0L);
+        FlowId flow2 = new FlowId(1L);
+        FlowId flow3 = new FlowId(2L);
+        FlowId flow4 = new FlowId(1L);
+
+        assertTrue(flow1.equals(flow1));
+        assertTrue(flow2.equals(flow2));
+        assertTrue(flow3.equals(flow3));
+        assertTrue(flow4.equals(flow4));
+
+        assertFalse(flow1.equals(flow2));
+        assertFalse(flow1.equals(flow3));
+        assertFalse(flow1.equals(flow4));
+        assertFalse(flow2.equals(flow1));
+        assertFalse(flow2.equals(flow3));
+        assertFalse(flow3.equals(flow1));
+        assertFalse(flow3.equals(flow2));
+        assertFalse(flow3.equals(flow4));
+        assertFalse(flow4.equals(flow1));
+        assertFalse(flow4.equals(flow3));
+
+        assertTrue(flow2.equals(flow4));
+        assertTrue(flow4.equals(flow2));
+    }
+
+}
diff --git a/src/test/java/net/onrc/onos/core/flowmanager/FlowIdGeneratorWithIdBlockAllocatorTest.java b/src/test/java/net/onrc/onos/core/flowmanager/FlowIdGeneratorWithIdBlockAllocatorTest.java
new file mode 100644
index 0000000..9546f6e
--- /dev/null
+++ b/src/test/java/net/onrc/onos/core/flowmanager/FlowIdGeneratorWithIdBlockAllocatorTest.java
@@ -0,0 +1,48 @@
+package net.onrc.onos.core.flowmanager;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import net.onrc.onos.api.flowmanager.FlowId;
+import net.onrc.onos.core.util.IdBlock;
+import net.onrc.onos.core.util.IdBlockAllocator;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Tests {@link FlowIdGeneratorWithIdBlockAllocator} class.
+ */
+public class FlowIdGeneratorWithIdBlockAllocatorTest {
+    private IdBlockAllocator allocator;
+    private FlowIdGeneratorWithIdBlockAllocator flowIdGenerator;
+
+    @Before
+    public void setUp() {
+        allocator = createMock(IdBlockAllocator.class);
+
+    }
+
+    /**
+     * Tests generated FlowId sequences using two {@link IdBlock blocks}.
+     */
+    @Test
+    public void testIds() {
+        expect(allocator.allocateUniqueIdBlock())
+                .andReturn(new IdBlock(0, 3))
+                .andReturn(new IdBlock(4, 3));
+
+        replay(allocator);
+        flowIdGenerator = new FlowIdGeneratorWithIdBlockAllocator(allocator);
+
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(0L)));
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(1L)));
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(2L)));
+
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(4L)));
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(5L)));
+        assertThat(flowIdGenerator.getNewId(), is(new FlowId(6L)));
+    }
+}
diff --git a/src/test/java/net/onrc/onos/core/newintent/PathFlowIntentTest.java b/src/test/java/net/onrc/onos/core/newintent/PathFlowIntentTest.java
index 6c83e86..c9da728 100644
--- a/src/test/java/net/onrc/onos/core/newintent/PathFlowIntentTest.java
+++ b/src/test/java/net/onrc/onos/core/newintent/PathFlowIntentTest.java
@@ -19,7 +19,7 @@
 
     private final IntentId intentId1 = new IntentId(123);
     private final IntentId intentId2 = new IntentId(456);
-    private final FlowId flowId1 = new FlowId("path1");
+    private final FlowId flowId1 = new FlowId(1L);
     private final PacketMatch match = new PacketMatchBuilder().build();
     private final PortNumber port = new PortNumber((short) 1);
 
diff --git a/src/test/java/net/onrc/onos/core/newintent/SingleDstTreeFlowIntentTest.java b/src/test/java/net/onrc/onos/core/newintent/SingleDstTreeFlowIntentTest.java
index 4ad202e..3799889 100644
--- a/src/test/java/net/onrc/onos/core/newintent/SingleDstTreeFlowIntentTest.java
+++ b/src/test/java/net/onrc/onos/core/newintent/SingleDstTreeFlowIntentTest.java
@@ -22,7 +22,7 @@
 
     private final IntentId intentId1 = new IntentId(1L);
     private final IntentId intentId2 = new IntentId(2L);
-    private final FlowId flowId1 = new FlowId("intent1");
+    private final FlowId flowId1 = new FlowId(1L);
     private final PacketMatch match = new PacketMatchBuilder().build();
     private final short port1 = (short) 1;
     private final short port2 = (short) 2;
diff --git a/src/test/java/net/onrc/onos/core/newintent/SingleSrcTreeFlowIntentTest.java b/src/test/java/net/onrc/onos/core/newintent/SingleSrcTreeFlowIntentTest.java
index 3330e47..cfd9391 100644
--- a/src/test/java/net/onrc/onos/core/newintent/SingleSrcTreeFlowIntentTest.java
+++ b/src/test/java/net/onrc/onos/core/newintent/SingleSrcTreeFlowIntentTest.java
@@ -25,8 +25,8 @@
 
     private final IntentId intentId1 = new IntentId(1L);
     private final IntentId intentId2 = new IntentId(2L);
-    private final FlowId flowId1 = new FlowId("tree1");
-    private final FlowId flowId2 = new FlowId("tree2");
+    private final FlowId flowId1 = new FlowId(1L);
+    private final FlowId flowId2 = new FlowId(2L);
     private final Dpid dpid1 = new Dpid(1);
     private final Dpid dpid2 = new Dpid(2);
     private final Dpid dpid3 = new Dpid(3);