Improve Test Coverage and Robustness in `apps/generator`

[Satya900]

Description

While analyzing the asyncapi-generator codebase, I identified several areas where the test suite can be improved to increase reliability and catch potential regressions early.

Currently:

• Some core modules like conditionalGeneration.js lack dedicated unit tests.
• Certain integration test scenarios (such as log verification for noOverwriteGlobs) are marked with TODOs.

Strengthening these areas will improve confidence in future changes and refactors.

---

Proposed Improvements

1. Dedicated Unit Tests for conditionalGeneration.js

The lib/conditionalGeneration.js module handles complex logic for conditional file/folder generation using template parameters and JMESPath expressions.

Goal: Create
apps/generator/test/conditionalGeneration.test.js
to cover:

Scenarios

• Parameter-based conditions.
• Subject (JMESPath) based conditions.
• Handling of the deprecated conditionalFiles configuration.

Edge Cases

• Missing parameters in templateParams.
• JMESPath expressions returning no results or null.
• Custom validate functions in conditionalGeneration.
• Server-specific context in JMESPath evaluation.

---

2. Verify Log Messages in Integration Tests

An existing TODO in test/integration.test.js suggests verifying log messages when files are skipped due to noOverwriteGlobs.

Goal: Implement log spying using:

jest.spyOn(log, 'debug')

To ensure:

• logMessage.relativeSourceFileNotGenerated (or the corresponding overwrite-skip message) is correctly called.
• Users get visual feedback in debug mode when files are intentionally skipped.

---

3. Expand noOverwriteGlobs Scenarios

Current integration tests for noOverwriteGlobs cover only basic cases.

Goal: Add more complex scenarios to
apps/generator/test/integration.test.js, including:

• Nested directory structures.
• Multiple glob patterns.
• Overlapping globs.

---

Impact

These improvements will:

• Increase overall test coverage of the generator core.
• Ensure the transition from conditionalFiles → conditionalGeneration is stable.
• Improve developer experience by confirming debug logs behave as expected.

---

Next Steps

• Create apps/generator/test/conditionalGeneration.test.js.

• Update apps/generator/test/integration.test.js with:

  • Log verification.
  • Complex glob scenarios.

• Ensure all existing tests pass.

---

[Satya900]

@Adi-204 please look into this issue if it is valid or not

[Adi-204]

@Satya900 you can work on issue or if you are not interest please do update issue description and add it is open for contribution.
The issue #1970 already exists so remove point 1 from issue description.
You can work on point 2 and point 3.
Also update issue title as it is much broader and doesn't really tell brief idea on issue.

[Satya900]

@Adi-204 i would like to work on this issue. as this was raised very long. i would once pull from the main and then continue.
I will work on your feedback