refactoring: change variable names in test_calculatorGetUserInputFactorial.c

tests/test_calculatorGetUserInputFactorial.c

@@ -4,6 +4,10 @@
 
 #include "calculatorGetUserInputFactorial.c"
 
+// Note:
+/* This Function may or may not be implemented in actual program, even if it is merged to the main branch.
+   If it is temporarily not included in the main Program, then this has a role in future Development of the Project */
+
 void setUp(void)
 {
 }
@@ -14,10 +18,10 @@ void tearDown(void)
 
 void test_calculatorGetUserInputFactorial(void)
 {
-    int a, e;
-    e = 1;
-    a = allowWhen();
-    TEST_ASSERT_EQUAL_INT(e, a);
+    int actual, expected;                       //Arrange
+    expected = 1;
+    actual = allowWhen();                       //Act
+    TEST_ASSERT_EQUAL_INT(expected, actual);    //Assert
 }
 
 #endif // TEST