refactoring: implement new variables in test_requestLoan.c

tests/test_requestLoan.c

@@ -14,9 +14,10 @@ void tearDown(void)
 
 void test_requestLoan(void)
 {
-    int e;
-    e = allow();
-    TEST_ASSERT_EQUAL_INT(1, e);
+    int actual, expected;                      //Arrange
+    expected = 1;
+    actual = allow();                         // Act
+    TEST_ASSERT_EQUAL_INT(expected, actual);  // Assert
 }
 
 #endif // TEST