4 files changed, 10 insertions, 10 deletions
diff --git a/src/jcgp/backend/tests/ChromosomeTests.java b/src/jcgp/backend/tests/ChromosomeTests.java
index 07326a7..36278ba 100644
--- a/src/jcgp/backend/tests/ChromosomeTests.java
+++ b/src/jcgp/backend/tests/ChromosomeTests.java
@@ -2,7 +2,7 @@ package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
-import jcgp.backend.function.IntegerArithmetic;
+import jcgp.backend.function.DoubleArithmetic;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Input;
@@ -46,7 +46,7 @@ public class ChromosomeTests {
 	@BeforeClass
 	public static void setUpBeforeClass() {
 		resources = new ModifiableResources();
-		resources.setFunctionSet(new IntegerArithmetic());
+		resources.setFunctionSet(new DoubleArithmetic());
 	}
 
 	@Before
diff --git a/src/jcgp/backend/tests/NodeTests.java b/src/jcgp/backend/tests/NodeTests.java
index 0e08d92..c9f247a 100644
--- a/src/jcgp/backend/tests/NodeTests.java
+++ b/src/jcgp/backend/tests/NodeTests.java
@@ -3,7 +3,7 @@ package jcgp.backend.tests;
 import static org.junit.Assert.assertTrue;
 import jcgp.backend.exceptions.InvalidArgumentsException;
 import jcgp.backend.function.Function;
-import jcgp.backend.function.IntegerArithmetic;
+import jcgp.backend.function.DoubleArithmetic;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Node;
@@ -41,7 +41,7 @@ public class NodeTests {
 	public static void setUpBeforeClass() {
 		
 		resources = new ModifiableResources();
-		resources.setFunctionSet(new IntegerArithmetic());
+		resources.setFunctionSet(new DoubleArithmetic());
 		chromosome = new Chromosome(resources);
 	}
 
@@ -49,7 +49,7 @@ public class NodeTests {
 	public void setUp() throws Exception {
 		node = new Node(chromosome, 0, 0, resources.arity());
 		// make node with anonymous addition function and hard-coded value connections
-		node.initialise(new IntegerArithmetic.Addition(),
+		node.initialise(new DoubleArithmetic.Addition(),
 				new Connection[]{new Connection() {
 
 					@Override
@@ -113,7 +113,7 @@ public class NodeTests {
 				((int) node.getValue()) == arg1 + arg2);
 
 		// put in a different function, check the output has changed appropriately
-		node.setFunction(new IntegerArithmetic.Subtraction());
+		node.setFunction(new DoubleArithmetic.Subtraction());
 
 		assertTrue("Node did not return expected value (difference of arguments).", ((Integer) node.getValue()) == arg1 - arg2);
 
diff --git a/src/jcgp/backend/tests/OutputTests.java b/src/jcgp/backend/tests/OutputTests.java
index a331f2d..95b7fc7 100644
--- a/src/jcgp/backend/tests/OutputTests.java
+++ b/src/jcgp/backend/tests/OutputTests.java
@@ -1,7 +1,7 @@
 package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
-import jcgp.backend.function.IntegerArithmetic;
+import jcgp.backend.function.DoubleArithmetic;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Connection;
 import jcgp.backend.population.Output;
@@ -35,7 +35,7 @@ public class OutputTests {
 	@BeforeClass
 	public static void setUpBeforeClass() {
 		resources = new ModifiableResources();
-		resources.setFunctionSet(new IntegerArithmetic());
+		resources.setFunctionSet(new DoubleArithmetic());
 		chromosome = new Chromosome(resources);
 	}
 
diff --git a/src/jcgp/backend/tests/PopulationTests.java b/src/jcgp/backend/tests/PopulationTests.java
index fb8ced4..fca9c4f 100644
--- a/src/jcgp/backend/tests/PopulationTests.java
+++ b/src/jcgp/backend/tests/PopulationTests.java
@@ -1,7 +1,7 @@
 package jcgp.backend.tests;
 
 import static org.junit.Assert.assertTrue;
-import jcgp.backend.function.IntegerArithmetic;
+import jcgp.backend.function.DoubleArithmetic;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.Population;
 import jcgp.backend.resources.ModifiableResources;
@@ -32,7 +32,7 @@ public class PopulationTests {
 	@BeforeClass
 	public static void setUpBeforeClass() throws Exception {
 		resources = new ModifiableResources();
-		resources.setFunctionSet(new IntegerArithmetic());
+		resources.setFunctionSet(new DoubleArithmetic());
 	}
 
 	@Before