Implment ExpiredAccountHandler-test

test/unit-tests/tchap/lib/ExpiredAccountHandler-test.ts

@@ -1,9 +1,52 @@
+import { mocked, MockedObject } from "jest-mock";
+
+import ExpiredAccountDialog from "~tchap-web/src/tchap/components/views/dialogs/ExpiredAccountDialog";
+import ExpiredAccountHandler from "~tchap-web/src/tchap/lib/ExpiredAccountHandler";
+import { HttpApiEvent, MatrixClient } from "~tchap-web/yarn-linked-dependencies/matrix-js-sdk/src/matrix";
+import Modal from "~tchap-web/yarn-linked-dependencies/matrix-react-sdk/src/Modal";
+import defaultDispatcher from "~tchap-web/yarn-linked-dependencies/matrix-react-sdk/src/dispatcher/dispatcher";
+import { getMockClientWithEventEmitter } from "~tchap-web/yarn-linked-dependencies/matrix-react-sdk/test/test-utils";
+
 describe("ExpiredAccountHandler", () => {
+    let mockClient: MockedObject<MatrixClient>;
+
+    beforeEach(() => {
+        Modal.createDialog = jest.fn();
+        // @ts-ignore mock (type error because empty return)
+        mocked(Modal.createDialog).mockReturnValue({});
+
+        mockClient = getMockClientWithEventEmitter({
+            stopClient: jest.fn(),
+            removeAllListeners: jest.fn(),
+        });
+    });
+
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
     it("displays dialog when account is expired", () => {
-        // Modal.createDialog
-        // create handler
-        // dispatch action : will_start_client
+        // handler instance is created when import ExpiredAccountHandler is run.
+        ExpiredAccountHandler.register();
+
+        // Simulate start of app, for handler to initialise
+        defaultDispatcher.dispatch({ action: "will_start_client" }, true);
+
+        // Simulate expired error
         // cli.on(HttpApiEvent.ORG_MATRIX_EXPIRED_ACCOUNT)
-        // expect Modal.createDialog to have been called, with ExpiredAccountDialog class
+        // this.eventEmitter.emit(HttpApiEvent.ORG_MATRIX_EXPIRED_ACCOUNT, err);
+        mockClient.emit(HttpApiEvent.ORG_MATRIX_EXPIRED_ACCOUNT);
+
+        expect(Modal.createDialog).toHaveBeenCalledWith(
+            ExpiredAccountDialog,
+            {
+                onRequestNewEmail: expect.any(Function),
+                onFinished: expect.any(Function),
+            },
+            undefined /* className */,
+            false /* isPriorityModal */,
+            true /* isStaticModal */,
+            { onBeforeClose: expect.any(Function) },
+        );
     });
 });