Module coding test - test your code comes up as not defined

[John_Laba]

For doing first graded coding assignment when I run test your code an error comes up undefined:

NameError                                 Traceback (most recent call last)
Cell In [5], line 2
      1 # Test your code!
----> 2 test_your_code.exercise_1a(book_title, author, year_published, available_copies)

NameError: name 'test_your_code' is not defined

[TMosh]

Every time you open a notebook, you must run all of the cells starting at the top of the notebook.

The first cell in this notebook is where the library assets are imported, linke the “test_your_code” module.

And you have to run this cell every time you open the notebook.

[John_Laba]

 Test your code!
test_your_code.exercise_1a(book_title, author, year_published, available_copies)

[John_Laba]

• After you finish coding an exercise, there will be a test section that checks your work using a function called test_your_code. If everything is correct, you’ll see a message saying “All tests passed!” and you can move on. If there’s a mistake, you’ll see a red message explaining what went wrong, so you can fix it.

[John_Laba]

Nevermind it works thank you

[TMosh]

Apologies, I should have posted an image to illustrate the issue.
This is the cell you have to run first, every time.