test: coverage

packages/runtime-core/src/apiInject.ts

@@ -35,7 +35,7 @@ export function inject(key: InjectionKey<any> | string, defaultValue?: any) {
     } else if (defaultValue !== undefined) {
       return defaultValue
     } else if (__DEV__) {
-      warn(`injection ${key} not found.`)
+      warn(`injection "${key}" not found.`)
     }
   }
 }

packages/runtime-core/src/warning.ts

@@ -1,3 +1,4 @@
 export function warn(...args: any[]) {
   // TODO
+  console.warn(...args)
 }