public void Transform_InstanceMethod_IncompatibleTypes ()
{
var method = typeof (object).GetMethod ("Equals", new[] { typeof (object) });
var instance = Expression.Constant (0);
var argument = Expression.Constant ("string");
var expression = Expression.Call (instance, method, argument);
var transformer = new EqualsMethodCallTransformer ();
var result = transformer.Transform (expression);
var expectedResult = Expression.Equal (Expression.Convert (instance, typeof (object)), Expression.Convert (argument, typeof (object)));
SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
}
public void Transform_StaticMethod ()
{
var method = typeof (object).GetMethod ("Equals", new[] { typeof (object), typeof(object) });
var parameter1 = Expression.Constant (new object ());
var parameter2 = Expression.Constant (new object ());
var expression = Expression.Call (method, parameter1, parameter2);
var transformer = new EqualsMethodCallTransformer ();
var result = transformer.Transform (expression);
var expectedResult = Expression.Equal (parameter1, parameter2);
SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
}
public void Transform_InstanceMethod ()
{
var method = typeof (object).GetMethod ("Equals", new[] { typeof(object) });
var instance = Expression.Constant (new object());
var argument = Expression.Constant(new object());
var expression = Expression.Call (instance, method, argument);
var transformer = new EqualsMethodCallTransformer ();
var result = transformer.Transform (expression);
var expectedResult = Expression.Equal (instance, argument);
SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
}
public void Transform_WrongNumberOfArguments ()
{
var method = typeof (object).GetMethod ("ToString", new Type[0]);
var expression = Expression.Call (Expression.Constant("test"), method);
var transformer = new EqualsMethodCallTransformer ();
transformer.Transform (expression);
}
public void Transform_StaticMethod_NonMatchingTypes ()
{
var method = typeof (object).GetMethod ("Equals", new[] { typeof (object), typeof (object) });
var parameter1 = Expression.Constant ("s");
var parameter2 = Expression.Constant (null, typeof (Cook));
var expression = Expression.Call (method, parameter1, parameter2);
var transformer = new EqualsMethodCallTransformer ();
var result = transformer.Transform (expression);
var expectedResult = Expression.Equal (Expression.Convert (parameter1, typeof (object)), Expression.Convert (parameter2, typeof (object)));
SqlExpressionTreeComparer.CheckAreEqualTrees (expectedResult, result);
}
