Support --expand/--no-expand flag (#107)

Author: fisker

.github/workflows/e2e-tests.yml

@@ -61,6 +61,9 @@ jobs:
       - name: Prepare for Node.js v14
         if: ${{ matrix.node == '14' }}
         run: |
+          yarn set version 3
+          yarn config set httpRetry 10
+          cat .yarnrc.yml
           node ./scripts/prepare-test-for-legacy-nodejs.js --node-version ${{ matrix.node }}
           cat package.json
           yarn
@@ -77,7 +80,7 @@ jobs:
           NODE_ENV: production
           FULL_TEST: true
         run: |
-          node ./node_modules/.bin/jest ${{ matrix.additional-options }}
+          yarn test:production-node14 ${{ matrix.additional-options }}
 
   babel:
     name: Babel

README.md

@@ -14,7 +14,7 @@ The lists below are not comprehensive: feel free to [start a discussion](https:/
 - Jest function mocks: `jest.fn`, `jest.spyOn`, `jest.clearAllMocks`, `jest.resetAllMocks`
 - Jest timer mocks: `jest.useFakeTimers`, `jest.useRealTimers`, `jest.setSystemTime`, `jest.advanceTimersByTime`
 - Inline and external snapshots
-- Jest cli options: `--testNamePattern`/`-t`, `--maxWorkers`, `--runInBand`
+- Jest cli options: `--testNamePattern`/`-t`, `--maxWorkers`, `--runInBand`, `--expand`, `--no-expand`
 - Jest config options: `setupFiles`, `setupFilesAfterEnv`, `snapshotSerializers`, `maxWorkers`, `snapshotFormat`, `snapshotResolver`, `slowTestThreshold`, `prettierPath`, `projects`
 - Jest environment variables: `JEST_WORKER_ID`
 

src/worker-runner.js

@@ -115,7 +115,11 @@ export default async function run(testFilePath) {
       updateSnapshot: globalConfig.updateSnapshot,
     },
   );
-  expect.setState({ snapshotState, testPath: testFilePath });
+  expect.setState({
+    snapshotState,
+    testPath: testFilePath,
+    expand: globalConfig.expand,
+  });
 
   const { tests, hasFocusedTests } = await loadTests(testFilePath);