fix: onAfterChange was not being fired

Fixes #3

Author: Brian Stone

src/components/ReactSlider/ReactSlider.jsx

@@ -54,13 +54,17 @@ function trimPreceding(length, nextValue, minDistance, min) {
 
 function addHandlers(eventMap) {
     Object.keys(eventMap).forEach(key => {
-        document.addEventListener(key, eventMap[key], false);
+        if (typeof document !== 'undefined') {
+            document.addEventListener(key, eventMap[key], false);
+        }
     });
 }
 
 function removeHandlers(eventMap) {
     Object.keys(eventMap).forEach(key => {
-        document.removeEventListener(key, eventMap[key], false);
+        if (typeof document !== 'undefined') {
+            document.removeEventListener(key, eventMap[key], false);
+        }
     });
 }
 
@@ -359,7 +363,7 @@ class ReactSlider extends React.Component {
 
     onEnd(eventMap) {
         removeHandlers(eventMap);
-        this.fireChangeEvent.bind(this, 'onAfterChange');
+        this.fireChangeEvent('onAfterChange');
     }
 
     onMouseMove = e => {

src/components/ReactSlider/__tests__/ReactSlider.test.js

@@ -7,4 +7,14 @@ describe('<ReactSlider>', () => {
         const tree = renderer.create(<ReactSlider />).toJSON();
         expect(tree).toMatchSnapshot();
     });
+
+    it('should call onAfterChange callback when onEnd is called', () => {
+        const onAfterChange = jest.fn();
+        const testRenderer = renderer.create(<ReactSlider onAfterChange={onAfterChange} />);
+        const testInstance = testRenderer.root;
+
+        expect(onAfterChange).not.toHaveBeenCalled();
+        testInstance.instance.onBlur();
+        expect(onAfterChange).toHaveBeenCalledTimes(1);
+    });
 });