# Interfaces and Testability lecture not showing all .cs files

**URL:** <https://forum.codewithmosh.com/t/interfaces-and-testability-lecture-not-showing-all-cs-files/1375>\
**Category:** C#\
**Created:** [December 22, 2020, 12:30am UTC](https://forum.codewithmosh.com/t/interfaces-and-testability-lecture-not-showing-all-cs-files/1375 "2020-12-22T00:30:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pfabbi](https://avatars.discourse-cdn.com/v4/letter/p/57b2e6/32.png) [@pfabbi](https://forum.codewithmosh.com/u/pfabbi)\
**Post date:** [December 22, 2020, 12:30am UTC](https://forum.codewithmosh.com/t/interfaces-and-testability-lecture-not-showing-all-cs-files/1375/1 "2020-12-22T00:30:09Z")

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So I’m studying interfaces in the Intermediate level C# course and I’m currently on the Interfaces and Testability Lecture, but I’m unable to complete it… The reason being is that Mosh doesn’t show what code he implemented on his Shipment.cs file.

What code has he implemented on it?

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<div class="post-metadata">

**Author:** ![SAM](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/sam/32/167_2.png) [@SAM](https://forum.codewithmosh.com/u/SAM)\
**Post date:** [December 22, 2020, 5:48am UTC](https://forum.codewithmosh.com/t/interfaces-and-testability-lecture-not-showing-all-cs-files/1375/2 "2020-12-22T05:48:40Z")

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It’s just a simple class with two props `Cost` and `ShippingDate`.

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<div class="post-metadata">

**Author:** ![sandeep-sparrow](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.codewithmosh.com/sandeep-sparrow/32/1440_2.png) [@sandeep-sparrow](https://forum.codewithmosh.com/u/sandeep-sparrow)\
**Post date:** [June 5, 2021, 6:39am UTC](https://forum.codewithmosh.com/t/interfaces-and-testability-lecture-not-showing-all-cs-files/1375/5 "2021-06-05T06:39:36Z")

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public class Shipment  
{  
Private float Cost { get; Set; }  
Private DateTime ShippingDate { get; set;}  
}