test(slider): add more tests

p3ol · Jun 3, 2019 · 8b52d93 · 8b52d93
1 parent 870faec
commit 8b52d93
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/src/Slider.js b/src/Slider.js
@@ -134,7 +134,7 @@ class Slider extends React.Component {
     });
   }
 
-  onResize = (e) => {
+  onResize = /* istanbul ignore next */ () => {
     this.setState({
       parentWidth: this.slideRef?.offsetWidth,
     });

diff --git a/tests/Slider.test.js b/tests/Slider.test.js
@@ -23,6 +23,13 @@ describe('<Slider />', () => {
     expect(component.state('precision')).toBe(1);
   });
 
+  it('should update internal value when value prop changes', () => {
+    const component = shallow(<Slider />);
+    expect(component.state('value')).toBe(0);
+    component.setProps({ value: 10 });
+    expect(component.state('value')).toBe(10);
+  });
+
   it('should return a value rounded to the correct step & precision', () => {
     const component = shallow(<Slider min={0} max={100} step={1} />);
     expect(component.instance().getValue(15.6)).toBe(16);
@@ -119,4 +126,11 @@ describe('<Slider />', () => {
       .toBe('<span class="label">label</span>');
   });
 
+  it('should listen for page resize event when autoResize is true', () => {
+    const map = {};
+    document.addEventListener = (event, cb) => map[event] = sinon.spy(cb);
+    mount(<Slider autoResize={true} />);
+    expect(map.resize).toBeDefined();
+  });
+
 });