feat(oauth2): authActions.authPopup plugin accessible wrapper (#7699)

* enables win.open to be extensible by plugins

Co-authored-by: Tim Lai <timothy.lai@gmail.com>

test/unit/core/plugins/auth/actions.js

@@ -1,4 +1,5 @@
 import { Map } from "immutable"
+import win from "core/window"
 import {
   authorizeRequest,
   authorizeAccessCodeWithFormParams,
@@ -7,7 +8,7 @@ import {
   logoutWithPersistOption,
   persistAuthorizationIfNeeded
 } from "corePlugins/auth/actions"
-import { authorizeAccessCodeWithBasicAuthentication } from "../../../../../src/core/plugins/auth/actions"
+import {authorizeAccessCodeWithBasicAuthentication, authPopup} from "../../../../../src/core/plugins/auth/actions"
 
 describe("auth plugin - actions", () => {
 
@@ -327,5 +328,19 @@ describe("auth plugin - actions", () => {
       })
     })
 
+    describe("authPopup", () => {
+      beforeEach(() => {
+        win.open = jest.fn()
+      })
+      it("should call win.open with url", () => {
+        const windowOpenSpy = jest.spyOn(win, "open")
+
+        authPopup("http://swagger.ui", {})()
+
+        expect(windowOpenSpy.mock.calls.length).toEqual(1)
+        windowOpenSpy.mockReset()
+      })
+    })
+
   })
 })