test: adding test for error check on <Subscribe>

__tests__/unstated.js

@@ -75,3 +75,10 @@ test('should remove subscriber listeners if component is unmounted', () => {
   expect(counter._listeners.length).toBe(0);
   expect(testInstance.unmounted).toBe(true);
 });
+
+test('should throw an error if <Subscribe> component is not wrapper with <Provider>', () => {
+  spyOn(console, 'error');
+  expect(() => render(<Counter />)).toThrowError(
+    'You must wrap your <Subscribe> components with a <Provider>'
+  );
+});

package.json

@@ -60,10 +60,10 @@
     "collectCoverageFrom": ["src/**/*.js"],
     "coverageThreshold": {
       "global": {
-        "lines": 80,
-        "statements": 78,
+        "lines": 82,
+        "statements": 80,
         "functions": 90,
-        "branches": 45
+        "branches": 50
       }
     }
   }