diff --git a/packages/elements/test/create-custom-element_spec.ts b/packages/elements/test/create-custom-element_spec.ts
index 0f22c9a2f2..7df5327569 100644
--- a/packages/elements/test/create-custom-element_spec.ts
+++ b/packages/elements/test/create-custom-element_spec.ts
@@ -45,6 +45,8 @@ if (browserDetection.supportsCustomElements) {
           .then(done, done.fail);
     });
 
+    afterEach(() => strategy.reset());
+
     afterAll(() => destroyPlatform());
 
     it('should use a default strategy for converting component inputs', () => {
@@ -155,6 +157,12 @@ if (browserDetection.supportsCustomElements) {
       setInputValue(propName: string, value: string): void {
         this.inputs.set(propName, value);
       }
+
+      reset(): void {
+        this.connectedElement = null;
+        this.disconnectCalled = false;
+        this.inputs.clear();
+      }
     }
 
     class TestStrategyFactory implements NgElementStrategyFactory {