[Tests] add test for mount

enzymejs · Jan 19, 2019 · 070a708 · 070a708
1 parent 370be71
commit 070a708
Showing 1 changed file with 36 additions and 0 deletions.
diff --git a/packages/enzyme-test-suite/test/ReactWrapper-spec.jsx b/packages/enzyme-test-suite/test/ReactWrapper-spec.jsx
@@ -5407,6 +5407,42 @@ describeWithDOM('mount', () => {
           }],
         ]);
       });
+
+      it('nextState passed into SCU should be different with this.state even GDSFP return new state', () => {
+        class SimpleComponent extends React.Component {
+          constructor(props) {
+            super(props);
+            this.state = {
+              value: props.value,
+            };
+          }
+
+          static getDerivedStateFromProps(props, state) {
+            if (props.value === state.value) {
+              return null;
+            }
+
+            return {
+              value: props.value,
+            };
+          }
+
+          shouldComponentUpdate(nextProps, nextState) {
+            const shouldUpdate = nextState.value !== this.state.value;
+            return shouldUpdate;
+          }
+
+          render() {
+            return (
+              <input value={this.props.value} />
+            );
+          }
+        }
+        const wrapper = mount(<SimpleComponent value="initial" />);
+        expect(wrapper.find('input').prop('value')).to.equal('initial');
+        wrapper.setProps({ value: 'updated' });
+        expect(wrapper.find('input').prop('value')).to.equal('updated');
+      });
     });
 
     describeIf(is('>= 16'), 'componentDidCatch', () => {