Check _isMockFunction is true rather than truthy

Fixes #7009
jestjs · Sep 21, 2018 · e651ed3 · e651ed3
1 parent ee751bf
commit e651ed3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/jest-runtime/src/index.js b/packages/jest-runtime/src/index.js
@@ -430,7 +430,7 @@ class Runtime {
           (typeof globalMock === 'object' && globalMock !== null) ||
           typeof globalMock === 'function'
         ) {
-          globalMock._isMockFunction && globalMock.mockClear();
+          globalMock._isMockFunction === true && globalMock.mockClear();
         }
       });