Jest snapshot resolver for snapshots at top level of repo when tests are in component folders.

snapshotResolver.js

const path = require('path')

const rootDir = path.resolve(__dirname, '..')

module.exports = {
  /** resolves from test to snapshot path */
  resolveSnapshotPath: (testPath, snapshotExtension) => {
    return testPath.replace('src/', '__snapshots__/') + snapshotExtension
  },

  /** resolves from snapshot to test path */
  resolveTestPath: (snapshotFilePath, snapshotExtension) => {
    return snapshotFilePath
      .replace('__snapshots__/', 'src/')
      .slice(0, -snapshotExtension.length)
  }
}

Nice. Needed to add testPathForConsistencyCheck: 'some/__tests__/example.test.js', at the end though (Jest 24.1.0).