private static dynamic InvokeAccessorOn(dynamic aDynamicObject, DynamicPropertyAccessExpressionBuilder accessBuilder,
Expression accessorExpression)
{
var result = Expression.Lambda <Func <object, object> >(accessorExpression,
new[] { accessBuilder.ParameterExpression })
.Compile().Invoke(aDynamicObject);
return(result);
}
public void Should_throw_for_accessor_for_anonymous_types()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new { Foo = expectedValue };
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
Assert.Throws <Microsoft.CSharp.RuntimeBinder.RuntimeBinderException>(() => InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression));
}
public void Should_create_accessor_for_property_with_complex_type()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Complex = new Customer { Name = expectedValue };
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Complex.Name");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, result);
}
public void Should_create_accessor_for_dynamic_object_indexer()
{
const string expectedValue = "Foo1";
dynamic aDynamicObject = new[] { expectedValue, "Foo2", "Foo3" };
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "[0]");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, (string)result);
}
public void Should_create_accessor_for_dynamic_object_indexer()
{
const string expectedValue = "Foo1";
dynamic aDynamicObject = new[] { expectedValue, "Foo2", "Foo3" };
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "[0]");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, (string)result);
}
public void Should_create_accessor_which_when_executed_returns_property_value()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Foo = expectedValue;
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, result);
}
public void Should_create_accessor_which_when_executed_returns_property_value()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Foo = expectedValue;
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, result);
}
public void Should_not_throw_if_accessed_property_value_is_null()
{
const object nullValue = null;
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Foo = nullValue;
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Null(result);
}
public void Should_create_accessor_for_property_with_complex_type()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Complex = new Customer {
Name = expectedValue
};
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Complex.Name");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Equal(expectedValue, result);
}
public void Should_throw_for_accessor_for_anonymous_types()
{
const string expectedValue = "Bar";
dynamic aDynamicObject = new { Foo = expectedValue };
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
Assert.Throws<Microsoft.CSharp.RuntimeBinder.RuntimeBinderException>(() => InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression));
}
public void Should_not_throw_if_accessed_property_value_is_null()
{
const object nullValue = null;
dynamic aDynamicObject = new ExpandoObject();
aDynamicObject.Foo = nullValue;
var accessBuilder = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
var accessorExpression = accessBuilder.CreateMemberAccessExpression();
var result = InvokeAccessorOn(aDynamicObject, accessBuilder, accessorExpression);
Assert.Null(result);
}
public void Should_create_accessor_for_dynamic_object_property()
{
var propertyAccessExpression = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
Assert.NotNull(propertyAccessExpression.CreateMemberAccessExpression());
}
private static dynamic InvokeAccessorOn(dynamic aDynamicObject, DynamicPropertyAccessExpressionBuilder accessBuilder,
Expression accessorExpression)
{
var result = Expression.Lambda<Func<object, object>>(accessorExpression,
new[] { accessBuilder.ParameterExpression })
.Compile().Invoke(aDynamicObject);
return result;
}
public void Should_create_accessor_for_dynamic_object_property()
{
var propertyAccessExpression = new DynamicPropertyAccessExpressionBuilder(typeof(object), "Foo");
Assert.NotNull(propertyAccessExpression.CreateMemberAccessExpression());
}
