#753 Improve test names - difference-of-squares

exercises/difference-of-squares/src/test/java/DifferenceOfSquaresCalculatorTest.java

     }
 
     @Test
-    public void testSquareOfSum1() {
+    public void testSquareOfSumUpToOne() {
         final int expected = 1;
         final int actual = calculator.computeSquareOfSumTo(1);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testSquareOfSum5() {
+    public void testSquareOfSumUpToFive() {
         final int expected = 225;
         final int actual = calculator.computeSquareOfSumTo(5);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testSquareOfSum100() {
+    public void testSquareOfSumUpToHundred() {
         final int expected = 25502500;
         final int actual = calculator.computeSquareOfSumTo(100);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testSumOfSquares1() {
+    public void testSumOfSquaresUpToOne() {
         final int expected = 1;
         final int actual = calculator.computeSumOfSquaresTo(1);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testSumOfSquares5() {
+    public void testSumOfSquaresUpToFive() {
         final int expected = 55;
         final int actual = calculator.computeSumOfSquaresTo(5);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testSumOfSquares100() {
+    public void testSumOfSquaresUpToHundred() {
         final int expected = 338350;
         final int actual = calculator.computeSumOfSquaresTo(100);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testDifferenceOfSquares1() {
+    public void testDifferenceOfSquaresUpToOne() {
         final int expected = 0;
         final int actual = calculator.computeDifferenceOfSquares(1);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testDifferenceOfSquares5() {
+    public void testDifferenceOfSquaresUpToFive() {
         final int expected = 170;
         final int actual = calculator.computeDifferenceOfSquares(5);
         assertEquals(expected, actual);
 
     @Ignore("Remove to run test")
     @Test
-    public void testDifferenceOfSquares100() {
+    public void testDifferenceOfSquaresUpToHundred() {
         final int expected = 25164150;
         final int actual = calculator.computeDifferenceOfSquares(100);
         assertEquals(expected, actual);