Do not search multiple levels deep

Author: Timer

fixtures/output/jest.config.js

@@ -1,5 +1,5 @@
 module.exports = {
   testEnvironment: 'node',
-  testMatch: ['**/*.test.js'],
+  testMatch: ['*/*.test.js'],
   setupTestFrameworkScriptFile: './setupOutputTests.js',
 };

fixtures/smoke/jest.config.js

@@ -1,5 +1,5 @@
 module.exports = {
   testEnvironment: 'node',
-  testMatch: ['**/*.test.js'],
+  testMatch: ['*/*.test.js'],
   setupTestFrameworkScriptFile: './setupSmokeTests.js',
 };