[New] Added test cases for session timeout dialog

Author: Srinivas9933

app/javascript/components/session-timeout-dialog/component.spec.js

@@ -0,0 +1,41 @@
+import { fromJS } from "immutable";
+import sinon from "sinon";
+import { createMocks } from "react-idle-timer";
+
+import { mountedComponent, screen } from "../../test-utils";
+
+import SessionTimeoutDialog from "./component";
+
+describe("<SessionTimeoutDialog />", () => {
+  let component;
+  let clock;
+
+  clock = sinon.useFakeTimers();
+  createMocks();
+  it("should idle after 15 minutes", () => {
+    mountedComponent(<SessionTimeoutDialog />,  fromJS({
+        application: {
+          userIdle: false
+        }
+      }))
+ 
+    expect(screen.queryByRole('dialog')).toBeNull()
+
+  });
+
+  describe("when user is offline", () => {
+    it("should not idle after 15 minutes", () => {
+        mountedComponent(<SessionTimeoutDialog />,  fromJS({
+            application: {
+              userIdle: false
+            },
+            connectivity: {
+                online: false
+              }
+          }))
+  
+          expect(screen.queryByRole('dialog')).toBeNull()
+     
+    });
+  });
+});