4 files changed, 32 insertions, 10 deletions
diff --git a/src/jcgp/backend/tests/ChromosomeTests.java b/src/jcgp/backend/tests/ChromosomeTests.java
index 1cd067e..a16ba75 100644
--- a/src/jcgp/backend/tests/ChromosomeTests.java
+++ b/src/jcgp/backend/tests/ChromosomeTests.java
@@ -2,13 +2,13 @@ package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import jcgp.JCGP.Resources;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Input;
 import jcgp.backend.population.MutableElement;
 import jcgp.backend.population.Node;
 import jcgp.backend.population.Output;
+import jcgp.backend.resources.ModifiableResources;
 
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -40,11 +40,11 @@ import org.junit.Test;
 public class ChromosomeTests {
 
 	private Chromosome chromosome;
-	private static Resources resources;
+	private static ModifiableResources resources;
 
 	@BeforeClass
 	public static void setUpBeforeClass() {
-		resources = new Resources();
+		resources = new ModifiableResources();
 	}
 
 	@Before
diff --git a/src/jcgp/backend/tests/NodeTests.java b/src/jcgp/backend/tests/NodeTests.java
index 7121e81..2294816 100644
--- a/src/jcgp/backend/tests/NodeTests.java
+++ b/src/jcgp/backend/tests/NodeTests.java
@@ -1,12 +1,13 @@
 package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
-import jcgp.JCGP.Resources;
-import jcgp.backend.function.Arithmetic;
+import jcgp.backend.exceptions.InvalidArgumentsException;
 import jcgp.backend.function.Function;
+import jcgp.backend.function.IntegerArithmetic;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Node;
+import jcgp.backend.resources.Resources;
 
 import org.junit.Before;
 import org.junit.BeforeClass;
@@ -48,7 +49,7 @@ public class NodeTests {
 	public void setUp() throws Exception {
 		node = new Node(chromosome, 0, 0, resources.getInt("arity"));
 		// make node with anonymous addition function and hard-coded value connections
-		node.initialise(new Arithmetic.Addition(),
+		node.initialise(new IntegerArithmetic.Addition(),
 				new Connection[]{new Connection() {
 
 					@Override
@@ -126,7 +127,7 @@ public class NodeTests {
 				((int) node.getValue()) == arg1 + arg2);
 
 		// put in a different function, check the output has changed appropriately
-		node.setFunction(new Arithmetic.Subtraction());
+		node.setFunction(new IntegerArithmetic.Subtraction());
 
 		assertTrue("Node did not return expected value (difference of arguments).", ((Integer) node.getValue()) == arg1 - arg2);
 
@@ -166,7 +167,28 @@ public class NodeTests {
 			}
 
 		};
-		node.initialise(null, conn0, conn1);
+		
+		Function function = new Function() {
+			@Override
+			public Object run(Connection... connections)
+					throws InvalidArgumentsException {
+				// blank
+				return null;
+			}
+
+			@Override
+			public int getArity() {
+				return 2;
+			}
+
+			@Override
+			public String getName() {
+				// blank
+				return null;
+			}
+		};
+		
+		node.initialise(function, conn0, conn1);
 
 		assertTrue("Connection 0 is incorrect.", node.getConnection(0) == conn0);
 		assertTrue("Connection 1 is incorrect.", node.getConnection(1) == conn1);
diff --git a/src/jcgp/backend/tests/OutputTests.java b/src/jcgp/backend/tests/OutputTests.java
index 7ff8a4a..b2bc7ec 100644
--- a/src/jcgp/backend/tests/OutputTests.java
+++ b/src/jcgp/backend/tests/OutputTests.java
@@ -1,10 +1,10 @@
 package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
-import jcgp.JCGP.Resources;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Output;
+import jcgp.backend.resources.Resources;
 
 import org.junit.Before;
 import org.junit.BeforeClass;
diff --git a/src/jcgp/backend/tests/PopulationTests.java b/src/jcgp/backend/tests/PopulationTests.java
index 51b5168..31df8b9 100644
--- a/src/jcgp/backend/tests/PopulationTests.java
+++ b/src/jcgp/backend/tests/PopulationTests.java
@@ -1,9 +1,9 @@
 package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
-import jcgp.JCGP.Resources;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Population;
+import jcgp.backend.resources.Resources;
 
 import org.junit.Before;
 import org.junit.BeforeClass;