update

src/test/java/rocks/zipcode/quiz3a/fundamentals/calculator/SubtractTest.java

@@ -11,37 +11,34 @@ public class SubtractTest {
     @Test
     public void test1() {
         // given
-        test(32.70, 49.04);
+        test(5.0, 10.0, 5.0);
     }
 
     @Test
     public void test2() {
         // given
-        test(689.93, 746.00);
+        test(150.0, 250.0, 100.0);
     }
 
     @Test
     public void test3() {
         // given
-        test(35354.0, 74542.0);
+        test(762.0, 862.0, 100.0);
     }
 
     @Test
     public void test4() {
         // given
-        test(746.93774653, 889409027.3737773635554244);
+        test(-899.999, -999.999, -100.0);
     }
 
     @Test
     public void test5() {
         // given
-        test(99873636.94874, 839.03);
+        test(-10.0, -5.0, 5.0);
     }
 
-    private void test(Double input1, Double input2) {
-        // given
-        Double expected = input1 - input2;
-
+    private void test(Double expected, Double input1, Double input2) {
         // when
         Calculator calculator = new Calculator();
         Double actual = calculator.subtract(input1, input2);