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feat(config): add better support for TypeScript #368

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merged 2 commits into from
May 28, 2024
Merged

feat(config): add better support for TypeScript #368

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b8535ac
feat(config): add support for typescript files
wjhsf May 22, 2024
d588006
feat(config): use more jest-preset
wjhsf May 22, 2024
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21 changes: 13 additions & 8 deletions src/config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,20 +28,25 @@ function getCoveragePaths() {
}

const jestConfig = {
rootDir: PROJECT_ROOT,
moduleFileExtensions: ['js', 'html'],
// Inherited from @lwc/jest-preset
moduleFileExtensions: jestPreset.moduleFileExtensions || ['ts', 'js', 'html'],
testEnvironment: jestPreset.testEnvironment || 'jsdom',
transform: {
'^.+\\.(js|html|css)$': require.resolve('@lwc/jest-transformer'),
...jestPreset.transform,
'^.+\\.(js|ts|html|css)$': require.resolve('@lwc/jest-transformer'),
},
setupFilesAfterEnv: jestPreset.setupFilesAfterEnv || [],
snapshotSerializers: jestPreset.snapshotSerializers || [
require.resolve('@lwc/jest-serializer'),
],
Comment on lines +32 to +41
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I'm not sure why we have the pattern of jestPreset.prop || 'hard-coded value matching jestPreset' when we depend on a version of jestPreset where it's always defined, but I kept the pattern.

I also considered changing this section to just ...jestPreset, but that would add in testMatch and coveragePathIgnorePatterns, and I don't know whether we want to do that.

// Specific to sfdx-lwc-jest
collectCoverageFrom: getCoveragePaths(),
resolver: path.join(__dirname, './resolver.js'),
rootDir: PROJECT_ROOT,
testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/test/specs/'],
transformIgnorePatterns: [
'/node_modules/(?!(.*@salesforce/sfdx-lwc-jest/src/lightning-stubs)/)',
],
setupFilesAfterEnv: jestPreset.setupFilesAfterEnv || [],
resolver: path.resolve(__dirname, './resolver.js'),
testPathIgnorePatterns: ['<rootDir>/node_modules/', '<rootDir>/test/specs/'],
collectCoverageFrom: getCoveragePaths(),
snapshotSerializers: [require.resolve('@lwc/jest-serializer')],
};

const expectedApiVersion = '61.0';
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