test: add comprehensive unit tests for OTEL traces flattening functionality.

[vkhinvasara]

Fixes ##1198.

Add Comprehensive Unit Tests for OTEL Traces Flattening

Primary Objective

Add extensive unit test coverage to validate and document the specialized flattening behavior for OpenTelemetry traces data in Parseable's log analytics platform.

Key Deliverables

• Complete test coverage for all flattening functions.
• Validation of data sanity across flattening operations.
• Ensuring nested data structure flattening.

TL;DR: Added basic unit tests for a good variety of flattening operations in traces.rs.

Summary by CodeRabbit

• Tests
  • Added comprehensive unit tests to validate the correctness and completeness of OpenTelemetry trace data flattening, including mapping, encoding, and field presence checks.

[coderabbitai]

Walkthrough

A new test module was added under a conditional compilation flag in src/otel/traces.rs. This module introduces multiple unit tests to validate the flattening logic for OpenTelemetry trace data structures, ensuring correct mapping, encoding, and completeness of the flattened output.

Changes

File(s)	Change Summary
src/otel/traces.rs	Added a comprehensive test module with unit tests for flattening functions and data structure mapping.

Sequence Diagram(s)

sequenceDiagram
    participant Test as Test Module
    participant Flatten as Flatten Functions
    participant Data as Trace Data Structures

    Test->>Flatten: Call flattening function with sample data
    Flatten->>Data: Access and map trace/event/link fields
    Flatten-->>Test: Return flattened JSON/map
    Test->>Test: Assert correctness of output fields and values

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Possibly related PRs

• fix: otel traces flattening fix #1196: Adds fixes to the flattening of span records when events or links are empty, which is directly validated by the new comprehensive tests in this PR.

Poem

In the warren of code, where traces run deep,
A bunny wrote tests, no secrets to keep.
Flattening spans, events, and links with care,
Ensuring each field is always there.
Now with each hop, the data is right—
Debugging is easy, and bugs take flight! 🐇

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📥 Commits

Reviewing files that changed from the base of the PR and between 3b2caea and 5696b95.

📒 Files selected for processing (1)

• src/otel/traces.rs (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• src/otel/traces.rs

✨ Finishing Touches

• 📝 Generate Docstrings

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[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[vkhinvasara]

I have read the CLA Document and I hereby sign the CLA

[vkhinvasara]

recheck