Compare table to dynamic instance

You can compare a dynamic instance to a table with the CompareToDynamicInstance extension method. This is useful and very common.

Consider the following scenario:

Scenario: Matching a dynamic instance against a table
    Given I create a dynamic instance from this table
        | Name   | Age | Birth date | Length in meters |
        | Marcus | 39  | 1972-10-09 | 1.96             |
    When I compare it to this table
        | Name   | Age | Birth date | Length in meters |
        | Marcus | 39  | 1972-10-09 | 1.96             |
    Then no instance comparison exception should have been thrown

And then comparing it using the following step definitions:

private dynamic _instance; // hold states between steps
private DynamicInstanceComparisonException _exception; // hold any exceptions thrown

[Given(@"I create a dynamic instance from this table")]
public void CreateDynamicInstanceFromTable(Table table)
{
    _instance = table.CreateDynamicInstance();
}

[When("I compare it to this table")]
public void ComparingAgainstDynamicInstance(Table table)
{
    try
    {
        // COMPARISION DONE HERE
        table.CompareToDynamicInstance((object)_instance);
    }
    catch (DynamicInstanceComparisonException ex)
    {
        _exception = ex;
    }
}

[Then("no instance comparison exception should have been thrown")]
public void NoException()
{
    _exception.Should().Be.Null();
}  

Please note that an cast to object is made for the comparison. This has to do with the fact that extension methods and dynamic parameters doesn't play nice together.