diff --git a/src/test/java/com/mattrixwv/matrix/TestDoubleMatrix.java b/src/test/java/com/mattrixwv/matrix/TestDoubleMatrix.java
index 75f7843..dc9fcdc 100644
--- a/src/test/java/com/mattrixwv/matrix/TestDoubleMatrix.java
+++ b/src/test/java/com/mattrixwv/matrix/TestDoubleMatrix.java
@@ -117,38 +117,43 @@ public class TestDoubleMatrix{
 	public void testEquals(){
 		//1x1
 		DoubleMatrix matrix = new DoubleMatrix(grid1);
-		assertTrue("DoubleMatrix 1x1 failed equals DoubleMatrix.", matrix.equals(matrix));
+		boolean gridEquals = matrix.equals(matrix);
+		assertTrue("DoubleMatrix 1x1 failed equals DoubleMatrix.", gridEquals);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals = matrix.equals(grid1);
-		assertTrue("DoubleMatrix 1x1 failed equals double[][].", gridEquals);
+		boolean gridEquals1 = matrix.equals(grid1);
+		assertTrue("DoubleMatrix 1x1 failed equals double[][].", gridEquals1);
 
 		//2x2
 		matrix = new DoubleMatrix(grid2);
-		assertTrue("DoubleMatrix 2x2 failed equals DoubleMatrix.", matrix.equals(matrix));
+		boolean gridEquals2 = matrix.equals(matrix);
+		assertTrue("DoubleMatrix 2x2 failed equals DoubleMatrix.", gridEquals2);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals2 = matrix.equals(grid2);
-		assertTrue("DoubleMatrix 2x2 failed equals double[][].", gridEquals2);
+		boolean gridEquals21 = matrix.equals(grid2);
+		assertTrue("DoubleMatrix 2x2 failed equals double[][].", gridEquals21);
 
 		//3x3
 		matrix = new DoubleMatrix(grid3);
-		assertTrue("DoubleMatrix 3x3 failed equals DoubleMatrix.", matrix.equals(matrix));
+		boolean gridEquals3 = matrix.equals(matrix);
+		assertTrue("DoubleMatrix 3x3 failed equals DoubleMatrix.", gridEquals3);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals3 = matrix.equals(grid3);
-		assertTrue("DoubleMatrix 3x3 failed equals double[][].", gridEquals3);
+		boolean gridEquals31 = matrix.equals(grid3);
+		assertTrue("DoubleMatrix 3x3 failed equals double[][].", gridEquals31);
 
 		//4x4
 		matrix = new DoubleMatrix(grid4);
-		assertTrue("DoubleMatrix 4x4 failed equals DoubleMatrix.", matrix.equals(matrix));
+		boolean gridEquals4 = matrix.equals(matrix);
+		assertTrue("DoubleMatrix 4x4 failed equals DoubleMatrix.", gridEquals4);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals4 = matrix.equals(grid4);
-		assertTrue("DoubleMatrix 4x4 failed equals double[][].", gridEquals4);
+		boolean gridEquals41 = matrix.equals(grid4);
+		assertTrue("DoubleMatrix 4x4 failed equals double[][].", gridEquals41);
 
 		//10x10
 		matrix = new DoubleMatrix(grid10);
-		assertTrue("DoubleMatrix 10x10 failed equals DoubleMatrix.", matrix.equals(matrix));
+		boolean gridEquals10 = matrix.equals(matrix);
+		assertTrue("DoubleMatrix 10x10 failed equals DoubleMatrix.", gridEquals10);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals10 = matrix.equals(grid10);
-		assertTrue("DoubleMatrix 10x10 failed equals double[][].", gridEquals10);
+		boolean gridEquals101 = matrix.equals(grid10);
+		assertTrue("DoubleMatrix 10x10 failed equals double[][].", gridEquals101);
 	}
 
 	@Test
diff --git a/src/test/java/com/mattrixwv/matrix/TestIntegerMatrix.java b/src/test/java/com/mattrixwv/matrix/TestIntegerMatrix.java
index ada38fc..6ad0c0a 100644
--- a/src/test/java/com/mattrixwv/matrix/TestIntegerMatrix.java
+++ b/src/test/java/com/mattrixwv/matrix/TestIntegerMatrix.java
@@ -117,38 +117,43 @@ public class TestIntegerMatrix{
 	public void testEquals(){
 		//1x1
 		IntegerMatrix matrix = new IntegerMatrix(grid1);
-		assertTrue("IntegerMatrix 1x1 failed equals IntegerMatrix.", matrix.equals(matrix));
+		boolean gridEquals = matrix.equals(matrix);
+		assertTrue("IntegerMatrix 1x1 failed equals IntegerMatrix.", gridEquals);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals = matrix.equals(grid1);
-		assertTrue("IntegerMatrix 1x1 failed equals int[][].", gridEquals);
+		boolean gridEquals1 = matrix.equals(grid1);
+		assertTrue("IntegerMatrix 1x1 failed equals int[][].", gridEquals1);
 
 		//2x2
 		matrix = new IntegerMatrix(grid2);
-		assertTrue("IntegerMatrix 2x2 failed equals IntegerMatrix.", matrix.equals(matrix));
+		boolean gridEquals2 = matrix.equals(matrix);
+		assertTrue("IntegerMatrix 2x2 failed equals IntegerMatrix.", gridEquals2);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals2 = matrix.equals(grid2);
-		assertTrue("IntegerMatrix 2x2 failed equals int[][].", gridEquals2);
+		boolean gridEquals21 = matrix.equals(grid2);
+		assertTrue("IntegerMatrix 2x2 failed equals int[][].", gridEquals21);
 
 		//3x3
 		matrix = new IntegerMatrix(grid3);
-		assertTrue("IntegerMatrix 3x3 failed equals IntegerMatrix.", matrix.equals(matrix));
+		boolean gridEquals3 = matrix.equals(matrix);
+		assertTrue("IntegerMatrix 3x3 failed equals IntegerMatrix.", gridEquals3);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals3 = matrix.equals(grid3);
-		assertTrue("IntegerMatrix 3x3 failed equals int[][].", gridEquals3);
+		boolean gridEquals31 = matrix.equals(grid3);
+		assertTrue("IntegerMatrix 3x3 failed equals int[][].", gridEquals31);
 
 		//4x4
 		matrix = new IntegerMatrix(grid4);
-		assertTrue("IntegerMatrix 4x4 failed equals IntegerMatrix.", matrix.equals(matrix));
+		boolean gridEquals4 = matrix.equals(matrix);
+		assertTrue("IntegerMatrix 4x4 failed equals IntegerMatrix.", gridEquals4);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals4 = matrix.equals(grid4);
-		assertTrue("IntegerMatrix 4x4 failed equals int[][].", gridEquals4);
+		boolean gridEquals41 = matrix.equals(grid4);
+		assertTrue("IntegerMatrix 4x4 failed equals int[][].", gridEquals41);
 
 		//10x10
 		matrix = new IntegerMatrix(grid10);
-		assertTrue("IntegerMatrix = 10x10 failed equals IntegerMatrix.", matrix.equals(matrix));
+		boolean gridEquals10 = matrix.equals(matrix);
+		assertTrue("IntegerMatrix = 10x10 failed equals IntegerMatrix.", gridEquals10);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals10 = matrix.equals(grid10);
-		assertTrue("IntegerMatrix 10x10 failed equals int[][].", gridEquals10);
+		boolean gridEquals101 = matrix.equals(grid10);
+		assertTrue("IntegerMatrix 10x10 failed equals int[][].", gridEquals101);
 	}
 
 	@Test
diff --git a/src/test/java/com/mattrixwv/matrix/TestLongMatrix.java b/src/test/java/com/mattrixwv/matrix/TestLongMatrix.java
index c8bdf68..10fae9c 100644
--- a/src/test/java/com/mattrixwv/matrix/TestLongMatrix.java
+++ b/src/test/java/com/mattrixwv/matrix/TestLongMatrix.java
@@ -117,38 +117,43 @@ public class TestLongMatrix{
 	public void testEquals(){
 		//1x1
 		LongMatrix matrix = new LongMatrix(grid1);
-		assertTrue("LongMatrix 1x1 failed equals LongMatrix.", matrix.equals(matrix));
+		boolean gridEquals = matrix.equals(matrix);
+		assertTrue("LongMatrix 1x1 failed equals LongMatrix.", gridEquals);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals = matrix.equals(grid1);
-		assertTrue("LongMatrix 1x1 failed equals long[][].", gridEquals);
+		boolean gridEquals1 = matrix.equals(grid1);
+		assertTrue("LongMatrix 1x1 failed equals long[][].", gridEquals1);
 
 		//2x2
 		matrix = new LongMatrix(grid2);
-		assertTrue("LongMatrix 2x2 failed equals LongMatrix.", matrix.equals(matrix));
+		boolean gridEquals2 = matrix.equals(matrix);
+		assertTrue("LongMatrix 2x2 failed equals LongMatrix.", gridEquals2);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals2 = matrix.equals(grid2);
-		assertTrue("LongMatrix 2x2 failed equals long[][].", gridEquals2);
+		boolean gridEquals21 = matrix.equals(grid2);
+		assertTrue("LongMatrix 2x2 failed equals long[][].", gridEquals21);
 
 		//3x3
 		matrix = new LongMatrix(grid3);
-		assertTrue("LongMatrix 3x3 failed equals LongMatrix.", matrix.equals(matrix));
+		boolean gridEquals3 = matrix.equals(matrix);
+		assertTrue("LongMatrix 3x3 failed equals LongMatrix.", gridEquals3);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals3 = matrix.equals(grid3);
-		assertTrue("LongMatrix 3x3 failed equals long[][].", gridEquals3);
+		boolean gridEquals31 = matrix.equals(grid3);
+		assertTrue("LongMatrix 3x3 failed equals long[][].", gridEquals31);
 
 		//4x4
 		matrix = new LongMatrix(grid4);
-		assertTrue("LongMatrix 4x4 failed equals LongMatrix.", matrix.equals(matrix));
+		boolean gridEquals4 = matrix.equals(matrix);
+		assertTrue("LongMatrix 4x4 failed equals LongMatrix.", gridEquals4);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals4 = matrix.equals(grid4);
-		assertTrue("LongMatrix 4x4 failed equals long[][].", gridEquals4);
+		boolean gridEquals41 = matrix.equals(grid4);
+		assertTrue("LongMatrix 4x4 failed equals long[][].", gridEquals41);
 
 		//10x10
 		matrix = new LongMatrix(grid10);
-		assertTrue("LongMatrix = 10x10 failed equals LongMatrix.", matrix.equals(matrix));
+		boolean gridEquals10 = matrix.equals(matrix);
+		assertTrue("LongMatrix = 10x10 failed equals LongMatrix.", gridEquals10);
 		@SuppressWarnings("unlikely-arg-type")
-		boolean gridEquals10 = matrix.equals(grid10);
-		assertTrue("LongMatrix 10x10 failed equals long[][].", gridEquals10);
+		boolean gridEquals101 = matrix.equals(grid10);
+		assertTrue("LongMatrix 10x10 failed equals long[][].", gridEquals101);
 	}
 
 	@Test