✅ test: add unit tests for Compass string compressor

[lobehubbot]

Summary

• Added unit tests for StrCompressor class in packages/utils/src/compass.ts
• Total test files added: 1
• Test cases added: 32
• Coverage focus: Comprehensive testing of brotli compression with URL-safe base64 encoding

Changes

• All tests pass successfully
• Business logic coverage improved
• Edge cases and error handling covered
• Tests follow existing patterns

Module Processed

packages/utils/src/compass.ts

Test Coverage

Functions tested:

• compress() - Synchronous string compression
• decompress() - Synchronous string decompression
• compressAsync() - Asynchronous string compression
• decompressAsync() - Asynchronous string decompression
• urlSafeBase64Encode() - URL-safe base64 encoding (private)
• urlSafeBase64Decode() - URL-safe base64 decoding (private)
• init() - WASM module initialization
• Compressor singleton instance

Coverage type:

Unit tests with mocked brotli-wasm dependency

Test approach:

• Arrange-Act-Assert pattern for clear test structure
• Mocked WASM dependency using Node.js zlib for reliable testing
• Comprehensive edge cases: empty strings, unicode, special characters, large data, binary data
• Round-trip verification: ensure data integrity through compress/decompress cycles
• Cross-method compatibility: verify sync and async methods produce compatible results
• URL-safe encoding validation: verify no +, /, or = characters in output

Test categories:

1. Basic compression/decompression (9 tests) - Simple strings, JSON, unicode, special chars
2. Async operations (6 tests) - Async compression with various data types
3. URL-safe base64 encoding (4 tests) - Encoding edge cases and padding
4. Cross-method compatibility (2 tests) - Sync/async interoperability
5. Edge cases (6 tests) - Single char, very long strings, binary data, repeated cycles
6. Initialization (2 tests) - WASM module initialization
7. Singleton (2 tests) - Singleton instance behavior
8. Round-trip (1 test) - Comprehensive data preservation test

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🤖 Generated with Claude Code

Summary by Sourcery

Add comprehensive unit tests for the Compass string compressor utilities to validate compression, decompression, initialization, and singleton behavior using a mocked brotli-WASM dependency.

Tests:

• Add a new test suite for Compass string compression utilities covering sync/async compression and decompression, URL-safe base64 encoding/decoding, and round-trip data integrity.
• Verify edge cases including empty input, unicode and special characters, large and binary payloads, and cross-compatibility between sync and async methods.
• Test WASM module initialization and the Compressor singleton instance behavior to ensure consistent setup across usages.

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Project	Deployment	Preview	Comments	Updated (UTC)
lobehub	Ready	Preview	Comment	Dec 5, 2025 5:52am

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds a new Jest test suite for the Compass StrCompressor to exercise all sync/async compression/decompression paths, URL-safe base64 helpers, initialization logic, and singleton behavior using a mocked brotli-wasm dependency for deterministic coverage.

File-Level Changes

Change	Details	Files
Introduce comprehensive unit tests for StrCompressor covering sync/async compression, URL-safe base64 helpers, initialization, and singleton behavior.	Add a Jest test suite that uses Arrange-Act-Assert structure and follows existing project test conventions. Mock the brotli-wasm dependency (backed by Node.js zlib) to make compression/decompression deterministic and independent of the real WASM module. Test compress/decompress and compressAsync/decompressAsync round-trips across basic, Unicode, special-character, JSON, and large-string payloads. Verify URL-safe base64 encoding/decoding guarantees no '+', '/', or '=' characters, including padding and edge cases. Cover edge cases such as empty strings, single characters, very long inputs, binary-like data, and repeated compression/decompression cycles. Exercise init() behavior and the Compressor singleton instance to ensure proper initialization and reuse semantics.	packages/utils/src/compass.test.ts

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[gru-agent]

TestGru Assignment

Summary

Link	CommitId	Status	Reason
Detail	10c0cd2	🚫 Skipped	No files need to be tested {"packages/utils/src/compass.test.ts":"File path does not match include patterns."}

History Assignment

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.68%. Comparing base (068d5d3) to head (10c0cd2).
⚠️ Report is 14 commits behind head on next.

Additional details and impacted files

@@            Coverage Diff             @@
##             next   #10615      +/-   ##
==========================================
+ Coverage   80.67%   80.68%   +0.01%     
==========================================
  Files         971      972       +1     
  Lines       66059    66100      +41     
  Branches     8739    10156    +1417     
==========================================
+ Hits        53292    53333      +41     
  Misses      12767    12767              

Flag	Coverage Δ
app	73.06% <ø> (ø)
database	98.32% <ø> (ø)
packages/agent-runtime	98.08% <ø> (ø)
packages/context-engine	91.61% <ø> (ø)
packages/conversation-flow	98.05% <ø> (ø)
packages/electron-server-ipc	93.76% <ø> (ø)
packages/file-loaders	92.21% <ø> (ø)
packages/model-bank	100.00% <ø> (ø)
packages/model-runtime	91.66% <ø> (ø)
packages/prompts	79.17% <ø> (ø)
packages/python-interpreter	96.50% <ø> (ø)
packages/utils	95.47% <ø> (+0.16%)	⬆️
packages/web-crawler	96.81% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
Store	73.15% <ø> (ø)
Services	56.44% <ø> (ø)
Server	75.27% <ø> (ø)
Libs	38.40% <ø> (ø)
Utils	83.36% <ø> (ø)

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