fix: remove env variable dependencies from tests

[ludtkemorgan]

This PR addresses #4419

• Addresses the issue in full
• Addresses only certain aspects of the issue

Description

When setting up the circle-ci for the new forked Detroit repo I noticed there was a heavy reliance on environment variables in order to work.

This PR does the following:

• Removes references to the env variables in unit/integration tests
• Update the circle-ci configuration file to have all of the need environment variables (none of them are secret) in cypress tests
• Mock calls to cloudinary in cypress tests
• mock calls to mapbox in cypress tests

How Can This Be Tested/Reviewed?

This is hard to show that it works locally and also the circle-ci run of this PR will still have all of the previously saved environment variables.

I tested this by creating a PR in bloom-detroit and didn't add any env variables to the circle-ci UI. bloom-housing#1

Author Checklist:

• Added QA notes to the issue with applicable URLs
• Reviewed in a desktop view
• Reviewed in a mobile view
• Reviewed considering accessibility
• Added tests covering the changes
• Made corresponding changes to the documentation
• Ran yarn generate:client and/or created a migration when required

Review Process:

• Read and understand the issue
• Ensure the author has added QA notes
• Review the code itself from a style point of view
• Pull the changes down locally and test that the acceptance criteria is met
• Either (1) explicitly ask a clarifying question, (2) request changes, or (3) approve the PR, even if there are very small remaining changes, if you don't need to re-review after the updates

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[jaredcwhite]

@ludtkemorgan It does seem surprising to me to see references to setting environment variables within individual tests. I understand having a set of explicit variables set somewhere in a test environment as it boots up, but I think it feels fragile to be referencing env vars at all in the code of unit tests.

[mcgarrye]

Functionally this looks good, not sure how you think of Jared's comment

[ludtkemorgan]

@jaredcwhite If you run the tests locally right now it expects your local .env file to contain the appropriate variables. So if you are missing some (or in some cases have the wrong value) the tests would fail locally.

This PR does a few things:

• Cypress tests mock some calls. This means the env variables aren't even needed for this aspect of the test
• Cypress tests circle ci configuration have the values so we don't have to manually set it in cypress every new repo
• Backend e2e tests set the environment variables needed for the tested module set in the "beforeAll".
  • Looks like I put one variable within the specific test, I can move that to the top
• Backend unit tests. When an environment variable is referenced in the function we are testing then I set the env variable at the beginning of the test.

As for your question about unit tests, my thought was this makes it less flaky since it will be the same in all environments - locally and deployed. Also it gives us the benefit of testing scenarios where the environment variable is something different.

We can talk about this more in standup or a eng workshop