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[Snyk] Security upgrade jest from 26.6.3 to 27.0.0 #459

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[Snyk] Security upgrade jest from 26.6.3 to 27.0.0 #459

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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@
"@typescript-eslint/eslint-plugin": "^4.33.0",
"@typescript-eslint/parser": "^4.31.1",
"eslint": "^7.5.0",
"jest": "^26.6.3",
"jest": "^27.0.0",
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@gemini-code-assist gemini-code-assist bot Jan 11, 2026

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critical

Upgrading Jest to v27 is a major version bump with breaking changes that will likely break your test suite with the current configuration.

  • ts-jest Incompatibility: Your current ts-jest version (^26.4.4 on line 45) is not compatible with Jest 27. You must also upgrade ts-jest to a compatible version (e.g., ^27.0.0) in this package.json file.

  • testEnvironment Change: Jest 27 changed the default testEnvironment from 'jsdom' to 'node'. Given that your Jest configuration (jest.config.js) includes tsx and jsx file extensions, your tests probably rely on a browser environment. You should explicitly set testEnvironment: 'jsdom' in your jest.config.js to avoid test failures.

Example for jest.config.js:

module.exports = {
    testEnvironment: 'jsdom',
    // ... other config
};

Without these changes, this upgrade is incomplete and will likely fail your CI build.

"standard-version": "^9.1.0",
"ts-jest": "^26.4.4",
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Copilot AI Jan 11, 2026

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Upgrading jest to version 27.0.0 requires a corresponding upgrade of ts-jest. The current version ts-jest ^26.4.4 is incompatible with jest 27.x. According to the ts-jest compatibility matrix, jest 27.x requires ts-jest version 27.x or higher. This will cause the test suite to fail when dependencies are installed.

Suggested change
"ts-jest": "^26.4.4",
"ts-jest": "^27.0.0",

Copilot uses AI. Check for mistakes.
"tslib": "^2.0.3",
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