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feat(builders): add runInBand and maxWorkers options to jest #757

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merged 1 commit into from
Sep 14, 2018
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feat(builders): add runInBand and maxWorkers options to jest #757

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8 changes: 6 additions & 2 deletions packages/builders/src/jest/jest.builder.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,9 @@ describe('Jest Builder', () => {
onlyChanged: true,
passWithNoTests: true,
bail: true,
silent: true
silent: true,
runInBand: true,
maxWorkers: 2
}
})
.toPromise();
Expand All @@ -88,7 +90,9 @@ describe('Jest Builder', () => {
onlyChanged: true,
passWithNoTests: true,
bail: true,
silent: true
silent: true,
runInBand: true,
maxWorkers: 2
},
['./jest.config.js']
);
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7 changes: 7 additions & 0 deletions packages/builders/src/jest/jest.builder.ts
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Expand Up @@ -19,7 +19,9 @@ export interface JestBuilderOptions {
ci?: boolean;
codeCoverage?: boolean;
onlyChanged?: boolean;
maxWorkers?: number;
passWithNoTests?: boolean;
runInBand?: boolean;
setupFile?: string;
silent?: boolean;
updateSnapshot?: boolean;
Expand All @@ -39,6 +41,7 @@ export default class JestBuilder implements Builder<JestBuilderOptions> {
onlyChanged: options.onlyChanged,
passWithNoTests: options.passWithNoTests,
silent: options.silent,
runInBand: options.runInBand,
globals: JSON.stringify({
'ts-jest': {
tsConfigFile: path.relative(builderConfig.root, options.tsConfig)
Expand All @@ -47,6 +50,10 @@ export default class JestBuilder implements Builder<JestBuilderOptions> {
})
};

if (options.maxWorkers) {
config.maxWorkers = options.maxWorkers;
}

if (options.setupFile) {
config.setupTestFrameworkScriptFile = path.join(
'<rootDir>',
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10 changes: 10 additions & 0 deletions packages/builders/src/jest/schema.json
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Expand Up @@ -59,6 +59,16 @@
"type": "boolean",
"description":
"Prevent tests from printing messages through the console. (https://jestjs.io/docs/en/cli#silent)"
},
"runInBand": {
"type": "boolean",
"description":
"Run tests in a single process as opposed to multiple workers. Useful for CI. (https://jestjs.io/docs/en/cli.html#runinband)"
},
"maxWorkers": {
"type": "number",
"description":
"Max number of workers to run tests across. Useful for CI. (https://jestjs.io/docs/en/cli.html#maxworkers-num)"
}
},
"required": ["jestConfig", "tsConfig"]
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