1 files changed, 47 insertions, 0 deletions
diff --git a/spec/frontend/search/index_spec.js b/spec/frontend/search/index_spec.js
new file mode 100644
index 00000000000..8a86cc4c52a
--- /dev/null
+++ b/spec/frontend/search/index_spec.js
@@ -0,0 +1,47 @@
+import { initSearchApp } from '~/search';
+import createStore from '~/search/store';
+
+jest.mock('~/search/store');
+jest.mock('~/search/sidebar');
+jest.mock('~/search/group_filter');
+
+describe('initSearchApp', () => {
+  let defaultLocation;
+
+  const setUrl = query => {
+    window.location.href = `https://localhost:3000/search${query}`;
+    window.location.search = query;
+  };
+
+  beforeEach(() => {
+    defaultLocation = window.location;
+    Object.defineProperty(window, 'location', {
+      writable: true,
+      value: { href: '', search: '' },
+    });
+  });
+
+  afterEach(() => {
+    window.location = defaultLocation;
+  });
+
+  describe.each`
+    search                           | decodedSearch
+    ${'test'}                        | ${'test'}
+    ${'%2520'}                       | ${'%20'}
+    ${'test%2Bthis%2Bstuff'}         | ${'test+this+stuff'}
+    ${'test+this+stuff'}             | ${'test this stuff'}
+    ${'test+%2B+this+%2B+stuff'}     | ${'test + this + stuff'}
+    ${'test%2B+%2Bthis%2B+%2Bstuff'} | ${'test+ +this+ +stuff'}
+    ${'test+%2520+this+%2520+stuff'} | ${'test %20 this %20 stuff'}
+  `('parameter decoding', ({ search, decodedSearch }) => {
+    beforeEach(() => {
+      setUrl(`?search=${search}`);
+      initSearchApp();
+    });
+
+    it(`decodes ${search} to ${decodedSearch}`, () => {
+      expect(createStore).toHaveBeenCalledWith({ query: { search: decodedSearch } });
+    });
+  });
+});