Fix & Add tests to test-runner

[benjaminkostiuk]

Test runner should have test cases for

• /case
• /suite
• /upload
• /download

The test cases are currently broken and need to be updated in order to start on the CI.

[benjaminkostiuk]

Note on fixing security when mocking: Need to have csrf enabled for endpoints to return 302s. (Should it be enabled all the time to protect against attacks).