Refactor replacement tests for better readability

[johscheuer]

Description

The previous setup had some weird interactions with JustBeforeEach and was hard to read.

Type of change

• Other

Discussion

Testing

Ran the unit tests, since we only changed tests, there is no need for running the e2e tests.

Documentation

Follow-up

[foundationdb-ci]

Result of fdb-kubernetes-operator-pr on Linux CentOS 7

• Commit ID: 5dd6824
• Duration 2:15:21
• Result: ✅ SUCCEEDED
• Error: N/A
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[nicmorales9]

https://old.reddit.com/r/oddlysatisfying/
Great stuff, thank you!

[johscheuer]

Merging and the code changes are not touching anything outside the test code. So there is no need to wait for the e2e tests to finish.

[foundationdb-ci]

Result of fdb-kubernetes-operator-pr on Linux CentOS 7

• Commit ID: 5a28a28
• Duration 2:49:25
• Result: ❌ FAILED
• Error: Error while executing command: if $fail_test; then exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)