improvement: flow coverage

src/components/Pagination/Pagination.js

@@ -1,9 +1,17 @@
+// @flow
 import React from 'react';
 import classNames from 'classnames/bind';
 import { Link } from 'gatsby';
 import { PAGINATION } from '../../constants';
 import styles from './Pagination.module.scss';
 
+type Props = {
+  prevPagePath: string,
+  nextPagePath: string,
+  hasNextPage: boolean,
+  hasPrevPage: boolean
+};
+
 const cx = classNames.bind(styles);
 
 const Pagination = ({
@@ -11,7 +19,7 @@ const Pagination = ({
   nextPagePath,
   hasNextPage,
   hasPrevPage
-}) => {
+}: Props) => {
   const prevClassName = cx({
     'pagination__prev-link': true,
     'pagination__prev-link--disable': !hasPrevPage

src/components/Pagination/Pagination.test.js

@@ -1,3 +1,4 @@
+// @flow
 import React from 'react';
 import renderer from 'react-test-renderer';
 import Pagination from './Pagination';

src/components/Pagination/index.js

@@ -1 +1,2 @@
+// @flow
 export { default } from './Pagination';