public void TransformExpressions_WithoutDefaultValue()
{
var resultOperator = new DefaultIfEmptyResultOperator(null);
resultOperator.TransformExpressions(ex =>
{
Assert.Fail("Must not be called.");
throw new NotImplementedException();
});
}
public void TransformExpressions_WithDefaultValue()
{
var oldExpression = ExpressionHelper.CreateExpression();
var newExpression = ExpressionHelper.CreateExpression();
var resultOperator = new DefaultIfEmptyResultOperator(oldExpression);
resultOperator.TransformExpressions(ex =>
{
Assert.That(ex, Is.SameAs(oldExpression));
return(newExpression);
});
Assert.That(resultOperator.OptionalDefaultValue, Is.SameAs(newExpression));
}
public void TransformExpressions_WithDefaultValue ()
{
var oldExpression = ExpressionHelper.CreateExpression ();
var newExpression = ExpressionHelper.CreateExpression ();
var resultOperator = new DefaultIfEmptyResultOperator (oldExpression);
resultOperator.TransformExpressions (ex =>
{
Assert.That (ex, Is.SameAs (oldExpression));
return newExpression;
});
Assert.That (resultOperator.OptionalDefaultValue, Is.SameAs (newExpression));
}
public void TransformExpressions_WithoutDefaultValue ()
{
var resultOperator = new DefaultIfEmptyResultOperator (null);
resultOperator.TransformExpressions (ex =>
{
Assert.Fail ("Must not be called.");
throw new NotImplementedException ();
});
}
