fix(datepicker): pass down date prop if provided (#611)

* fix(datepicker): pass down date prop if provided

* chore: install babel-jest

Author: arthurdenner

package.json

@@ -53,6 +53,7 @@
     "@types/jest": "26.0.23",
     "@types/storybook__react": "5.2.1",
     "autoprefixer": "9.8.6",
+    "babel-jest": "27.0.6",
     "babel-loader": "8.2.2",
     "cssnano": "4.1.11",
     "eslint-plugin-prettier": "3.3.1",

src/index.tsx

@@ -22,6 +22,7 @@ const style: React.CSSProperties = {
   display: 'inline-block',
   position: 'relative',
 };
+
 const semanticInputProps = [
   'autoComplete',
   'autoFocus',
@@ -152,11 +153,11 @@ class SemanticDatepicker extends React.Component<
     };
   }
 
-  get date() {
+  get date(): Date | undefined {
     const { selectedDate } = this.state;
     const { date } = this.props;
 
-    if (!selectedDate) {
+    if (date || !selectedDate) {
       return date;
     }