add more test for pushable with not allowcross

tests/Range.test.js

@@ -116,5 +116,34 @@ describe('Range', () => {
     wrapper.setState({ value: [35, 40] });
     expect(wrapper.instance().getSlider().state.bounds[0]).toBe(30);
     expect(wrapper.instance().getSlider().state.bounds[1]).toBe(40);
+    wrapper.setState({ value: [30, 30] });
+    expect(wrapper.instance().getSlider().state.bounds[0]).toBe(30);
+    expect(wrapper.instance().getSlider().state.bounds[1]).toBe(40);
+  });
+
+  it('should keep pushable with pushable s defalutValue when not allowCross and setState', () => {
+    class CustomizedRange extends React.Component { // eslint-disable-line
+      constructor(props) {
+        super(props);
+        this.state = {
+          value: [20, 40],
+        };
+      }
+      getSlider() {
+        return this.refs.slider;
+      }
+      render() {
+        return <Range ref="slider" allowCross={false} value={this.state.value} pushable />;
+      }
+    }
+    const wrapper = mount(<CustomizedRange />);
+    expect(wrapper.instance().getSlider().state.bounds[0]).toBe(20);
+    expect(wrapper.instance().getSlider().state.bounds[1]).toBe(40);
+    wrapper.setState({ value: [40, 40] });
+    expect(wrapper.instance().getSlider().state.bounds[0]).toBe(39);
+    expect(wrapper.instance().getSlider().state.bounds[1]).toBe(40);
+    wrapper.setState({ value: [39, 38] });
+    expect(wrapper.instance().getSlider().state.bounds[0]).toBe(39);
+    expect(wrapper.instance().getSlider().state.bounds[1]).toBe(40);
   });
 });