public void SelectAllFrom()
        {
            var expected = "SELECT * FROM Products";
            var query    = SQLSelectBuilder
                           .SelectAllFrom("Products")
                           .Build();

            AssertTrue(query, expected);
        }
        public void SelectAllFromApplyingWhere()
        {
            var expected = "SELECT * FROM EMPLOYEES WHERE ANNUAL_SALARY > 24000";
            var query    = SQLSelectBuilder
                           .SelectAllFrom("EMPLOYEES")
                           .Where("ANNUAL_SALARY", new MajorThan(24000))
                           .Build();

            AssertTrue(query, expected);
        }
        public void SelectAllFromApplyingWhereWithAnd()
        {
            var expected = "SELECT * FROM EMPLOYEES WHERE ANNUAL_SALARY > 24000 AND HIRED_ON > 1990/01/01";
            var query    = SQLSelectBuilder
                           .SelectAllFrom("EMPLOYEES")
                           .Where("ANNUAL_SALARY", new MajorThan(24000))
                           .And("HIRED_ON", new AfterThan(new DateTime(1990, 1, 1), "yyyy/MM/dd"))
                           .Build();

            AssertTrue(query, expected);
        }