jest-worker test: add FORCE_COLOR env var

jestjs · Nov 23, 2018 · 7c83449 · 7c83449
1 parent 4d31ae0
commit 7c83449
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/packages/jest-worker/src/__tests__/Worker.test.js b/packages/jest-worker/src/__tests__/Worker.test.js
@@ -10,6 +10,7 @@
 /* eslint-disable no-new */
 
 import EventEmitter from 'events';
+import supportsColor from 'supports-color';
 
 import {
   CHILD_MESSAGE_CALL,
@@ -64,7 +65,9 @@ it('passes fork options down to child_process.fork, adding the defaults', () =>
   expect(childProcess.fork.mock.calls[0][0]).toBe(child);
   expect(childProcess.fork.mock.calls[0][1]).toEqual({
     cwd: '/tmp', // Overridden default option.
-    env: process.env, // Default option.
+    env: Object.assign({}, process.env, {
+      FORCE_COLOR: (supportsColor.stdout && '1') || undefined,
+    }), // Default option.
     execArgv: ['-p'], // Filtered option.
     execPath: 'hello', // Added option.
     silent: true, // Default option.