From a2421ee2d3cdc01f85517d066d932d974153416a Mon Sep 17 00:00:00 2001
From: Alejandro Celaya <alejandro@alejandrocelaya.com>
Date: Sun, 7 Nov 2021 11:22:29 +0100
Subject: [PATCH] Created helper function to evolve a query string based on an
 object

---
 src/utils/helpers/query.ts       |  3 +++
 test/utils/helpers/query.test.ts | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/utils/helpers/query.ts b/src/utils/helpers/query.ts
index 8c59f6eb..7d378f04 100644
--- a/src/utils/helpers/query.ts
+++ b/src/utils/helpers/query.ts
@@ -3,3 +3,6 @@ import qs from 'qs';
 export const parseQuery = <T>(search: string) => qs.parse(search, { ignoreQueryPrefix: true }) as unknown as T;
 
 export const stringifyQuery = (query: any): string => qs.stringify(query, { arrayFormat: 'brackets' });
+
+export const evolveStringifiedQuery = (currentQuery: string, extra: any): string =>
+  stringifyQuery({ ...parseQuery(currentQuery), ...extra });
diff --git a/test/utils/helpers/query.test.ts b/test/utils/helpers/query.test.ts
index 90969bce..585af91a 100644
--- a/test/utils/helpers/query.test.ts
+++ b/test/utils/helpers/query.test.ts
@@ -1,4 +1,4 @@
-import { parseQuery, stringifyQuery } from '../../../src/utils/helpers/query';
+import { evolveStringifiedQuery, parseQuery, stringifyQuery } from '../../../src/utils/helpers/query';
 
 describe('query', () => {
   describe('parseQuery', () => {
@@ -22,4 +22,15 @@ describe('query', () => {
       expect(stringifyQuery(queryObj)).toEqual(expectedResult);
     });
   });
+
+  describe('evolveStringifiedQuery', () => {
+    it.each([
+      [ '?foo=bar', { baz: 123 }, 'foo=bar&baz=123' ],
+      [ 'foo=bar', { baz: 123 }, 'foo=bar&baz=123' ],
+      [ 'foo=bar&baz=hello', { baz: 'world' }, 'foo=bar&baz=world' ],
+      [ '?', { foo: 'some', bar: 'thing' }, 'foo=some&bar=thing' ],
+    ])('adds and overwrites params on provided query string', (query, extra, expected) => {
+      expect(evolveStringifiedQuery(query, extra)).toEqual(expected);
+    });
+  });
 });