Run tests for Fire feature flags

package.json

@@ -99,7 +99,9 @@
     "postinstall": "node node_modules/fbjs-scripts/node/check-dev-engines.js package.json && node ./scripts/flow/createFlowConfigs.js",
     "debug-test": "cross-env NODE_ENV=development node --inspect-brk node_modules/.bin/jest --config ./scripts/jest/config.source.js --runInBand",
     "test": "cross-env NODE_ENV=development jest --config ./scripts/jest/config.source.js",
+    "test-fire": "cross-env NODE_ENV=development jest --config ./scripts/jest/config.source-fire.js",
     "test-prod": "cross-env NODE_ENV=production jest --config ./scripts/jest/config.source.js",
+    "test-fire-prod": "cross-env NODE_ENV=production jest --config ./scripts/jest/config.source-fire.js",
     "test-prod-build": "yarn test-build-prod",
     "test-build": "cross-env NODE_ENV=development jest --config ./scripts/jest/config.build.js",
     "test-build-prod": "cross-env NODE_ENV=production jest --config ./scripts/jest/config.build.js",

scripts/circleci/test_entry_point.sh

@@ -19,6 +19,9 @@ fi
 
 if [ $((1 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
   COMMANDS_TO_RUN+=('yarn test-prod --maxWorkers=2')
+  # React Fire:
+  COMMANDS_TO_RUN+=('yarn test-fire --maxWorkers=2')
+  COMMANDS_TO_RUN+=('yarn test-fire-prod --maxWorkers=2')
 fi
 
 if [ $((2 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then

scripts/jest/config.source-fire.js

@@ -0,0 +1,11 @@
+'use strict';
+
+const baseConfig = require('./config.base');
+
+module.exports = Object.assign({}, baseConfig, {
+  setupFiles: [
+    ...baseConfig.setupFiles,
+    require.resolve('./setupFire.js'),
+    require.resolve('./setupHostConfigs.js'),
+  ],
+});

scripts/jest/setupFire.js

@@ -0,0 +1,7 @@
+'use strict';
+
+jest.mock('shared/ReactFeatureFlags', () => {
+  const ReactFeatureFlags = require.requireActual('shared/ReactFeatureFlags');
+  // TODO: Set feature flags for Fire
+  return ReactFeatureFlags;
+});