Use process.cwd as config.rootDir fallback

integration-tests/__tests__/config.test.js

@@ -74,3 +74,12 @@ test('works with jsdom testEnvironmentOptions config JSON', () => {
   expect(result.status).toBe(0);
   expect(stderr).toMatch('found userAgent Agent/007');
 });
+
+test('rootDir should be correct if config not in the root folder', () => {
+  const {status, stderr} = runJest('config_not_in_root_and_rootDir', [
+    '--config=setup/config.json',
+  ]);
+
+  expect(status).toBe(0);
+  expect(stderr).toMatch('PASS');
+});

integration_tests/config_not_in_root_and_rootDir/__tests__/assertion_passes.test.js

@@ -0,0 +1,3 @@
+test('assertion is correct', () => {
+  expect(true).toBe(true);
+});

integration_tests/config_not_in_root_and_rootDir/package.json

@@ -0,0 +1,5 @@
+{
+  "jest": {
+    "testEnvironment": "node"
+  }
+}

integration_tests/config_not_in_root_and_rootDir/setup/config.json

@@ -0,0 +1,3 @@
+{
+  "setupTestFrameworkScriptFile": "<rootDir>/setup/setup.js"
+}

integration_tests/config_not_in_root_and_rootDir/setup/setup.js

@@ -0,0 +1 @@
+jasmine.DEFAULT_TIMEOUT_INTERVAL = 40 * 1000;

packages/jest-config/src/read_config_file_and_set_root_dir.js

@@ -51,8 +51,8 @@ export default (configPath: Path): InitialOptions => {
       );
     }
   } else {
-    // If rootDir is not there, we'll set it to this file's __dirname
-    configObject.rootDir = path.dirname(configPath);
+    // If rootDir is not there, we'll set it to cwd
+    configObject.rootDir = process.cwd();
   }
 
   return configObject;