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);
}
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_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_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);
}
