1 files changed, 40 insertions, 0 deletions
diff --git a/spec/frontend/__helpers__/set_window_location_helper_spec.js b/spec/frontend/__helpers__/set_window_location_helper_spec.js
new file mode 100644
index 00000000000..98f26854822
--- /dev/null
+++ b/spec/frontend/__helpers__/set_window_location_helper_spec.js
@@ -0,0 +1,40 @@
+import setWindowLocation from './set_window_location_helper';
+
+describe('setWindowLocation', () => {
+  const originalLocation = window.location;
+
+  afterEach(() => {
+    window.location = originalLocation;
+  });
+
+  it.each`
+    url                                    | property      | value
+    ${'https://gitlab.com#foo'}            | ${'hash'}     | ${'#foo'}
+    ${'http://gitlab.com'}                 | ${'host'}     | ${'gitlab.com'}
+    ${'http://gitlab.org'}                 | ${'hostname'} | ${'gitlab.org'}
+    ${'http://gitlab.org/foo#bar'}         | ${'href'}     | ${'http://gitlab.org/foo#bar'}
+    ${'http://gitlab.com'}                 | ${'origin'}   | ${'http://gitlab.com'}
+    ${'http://gitlab.com/foo/bar/baz'}     | ${'pathname'} | ${'/foo/bar/baz'}
+    ${'https://gitlab.com'}                | ${'protocol'} | ${'https:'}
+    ${'http://gitlab.com#foo'}             | ${'protocol'} | ${'http:'}
+    ${'http://gitlab.com:8080'}            | ${'port'}     | ${'8080'}
+    ${'http://gitlab.com?foo=bar&bar=foo'} | ${'search'}   | ${'?foo=bar&bar=foo'}
+  `(
+    'sets "window.location.$property" to be "$value" when called with: "$url"',
+    ({ url, property, value }) => {
+      expect(window.location).toBe(originalLocation);
+
+      setWindowLocation(url);
+
+      expect(window.location[property]).toBe(value);
+    },
+  );
+
+  it.each([null, 1, undefined, false, '', 'gitlab.com'])(
+    'throws an error when called with an invalid url: "%s"',
+    (invalidUrl) => {
+      expect(() => setWindowLocation(invalidUrl)).toThrow(/Invalid URL/);
+      expect(window.location).toBe(originalLocation);
+    },
+  );
+});