public void EmptyTest()
{
var tested = new GroupByClause();
string expected = "";
string actual = tested.ToQueryString();
Assert.AreEqual(expected, actual);
}
public void MultiGroupTest()
{
var tested = new GroupByClause();
var mockExpression = new Mock<IQueryExpression>();
mockExpression.Setup (x => x.ToQueryString()).Returns ("A");
tested.Expressions.Add (mockExpression.Object);
tested.Expressions.Add (mockExpression.Object);
tested.Expressions.Add (mockExpression.Object);
string expected = "GROUP BY A, A, A";
string actual = tested.ToQueryString();
Assert.AreEqual(expected, actual);
}