});
describe('getTasksForComponent', () => {
+ beforeEach(() => {
+ jest.useFakeTimers();
+ });
+ afterEach(() => {
+ jest.runOnlyPendingTimers();
+ jest.useRealTimers();
+ });
+
it('reload component after task progress finished', async () => {
jest
.mocked(getTasksForComponent)
renderComponentContainer();
- jest.useFakeTimers();
+ // getComponentNavigation is called imidiately after the component is mounted
+ expect(getComponentNavigation).toHaveBeenCalledTimes(1);
- // First round, there's something in the queue, and component navigation was
- // not called again (it's called once at mount, hence the 1 times assertion
- // here).
- await waitFor(() => {
- expect(getComponentNavigation).toHaveBeenCalledTimes(1);
- });
+ // we check that setTimeout is not yet set, because it requires getComponentNavigation to finish first (as a microtask)
+ expect(jest.getTimerCount()).toBe(0);
+
+ // First round, a pending task in the queue. This should trigger the setTimeout.
+ // We need waitFor because getComponentNavigation is not done yet and it is waiting to be run as a microtask
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
+ // getTasksForComponent updated the tasks, which triggers the setTimeout
+ expect(jest.getTimerCount()).toBe(1);
+ // we run the timer to trigger the next getTasksForComponent call
jest.runOnlyPendingTimers();
- jest.useRealTimers();
- // Second round, the queue is now empty, hence we assume the previous task
- // was done. We immediately load the component again.
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
+ // Second round, the queue is now empty. This should trigger the component to reload.
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
- // Trigger the update.
- // The component was correctly re-loaded.
+ // Since the set of tasks is changed the component fetching is triggered
+ // we need waitFor because getTasksForComponent is triggered, but not yet done, and it is waiting to be run as a microtask
await waitFor(() => {
expect(getComponentNavigation).toHaveBeenCalledTimes(2);
});
- // The status API call will be called 1 final time after the component is
- // fully loaded, so the total will be 3.
- expect(getTasksForComponent).toHaveBeenCalledTimes(3);
-
- // Make sure the timeout was cleared. It should not be called again.
- jest.useFakeTimers();
- jest.runAllTimers();
- // The number of calls haven't changed.
- await waitFor(() => {
- expect(getComponentNavigation).toHaveBeenCalledTimes(2);
- });
+ // since waitFor waited for all microtasks and state changes getTasksForComponent was called as well because of component change.
expect(getTasksForComponent).toHaveBeenCalledTimes(3);
- jest.useRealTimers();
+ // Make sure the timeout was cleared. It should not be called again.
+ expect(jest.getTimerCount()).toBe(0);
});
it('reloads component after task progress finished, and moves straight to current', async () => {
renderComponentContainer();
- jest.useFakeTimers();
+ // getComponentNavigation is called imidiately after the component is mounted
+ expect(getComponentNavigation).toHaveBeenCalledTimes(1);
- // First round, nothing in the queue, and component navigation was not called
- // again (it's called once at mount, hence the 1 times assertion here).
- await waitFor(() => {
- expect(getComponentNavigation).toHaveBeenCalledTimes(1);
- });
+ // First round, no tasks in queue. This should trigger the setTimeout.
+ // We need waitFor because getComponentNavigation is not done yet and it is waiting to be run as a microtask
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
+ // Despite the fact taht we don't have any tasks in the queue, the component.analysisDate is undefined, so we trigger setTimeout
+ expect(jest.getTimerCount()).toBe(1);
jest.runOnlyPendingTimers();
- jest.useRealTimers();
// Second round, nothing in the queue, BUT a success task is current. This
// means the queue was processed too quick for us to see, and we didn't see
// any pending tasks in the queue. So we immediately load the component again.
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
- // Trigger the update.
- // The component was correctly re-loaded.
+ // Since the set of tasks is changed the component fetching is triggered
+ // we need waitFor because getTasksForComponent is triggered, but not yet done, and it is waiting to be run as a microtask
await waitFor(() => {
expect(getComponentNavigation).toHaveBeenCalledTimes(2);
});
// The status API call will be called 1 final time after the component is
// fully loaded, so the total will be 3.
expect(getTasksForComponent).toHaveBeenCalledTimes(3);
+
+ // Make sure the timeout was cleared. It should not be called again.
+ expect(jest.getTimerCount()).toBe(0);
});
it('only fully loads a non-empty component once', async () => {
} as unknown as Awaited<ReturnType<typeof getTasksForComponent>>);
renderComponentContainer();
- await waitFor(() => {
- expect(getComponentNavigation).toHaveBeenCalledTimes(1);
- });
+
+ expect(getComponentNavigation).toHaveBeenCalledTimes(1);
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
+
+ // Since the component has analysisDate, and the queue is empty, the setTimeout will not be triggered
+ expect(jest.getTimerCount()).toBe(0);
});
it('only fully reloads a non-empty component if there was previously some task in progress', async () => {
renderComponentContainer();
- jest.useFakeTimers();
-
// First round, a pending task in the queue. This should trigger a reload of the
// status endpoint.
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
+ expect(jest.getTimerCount()).toBe(1);
jest.runOnlyPendingTimers();
- jest.useRealTimers();
// Second round, nothing in the queue, and a success task is current. This
// implies the current task was updated, and previously we displayed some information
// about a pending task. This new information must prompt the component to reload
// all data.
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
// The component was correctly re-loaded.
await waitFor(() => {
expect(getComponentNavigation).toHaveBeenCalledTimes(2);
});
+
// The status API call will be called 1 final time after the component is
// fully loaded, so the total will be 3.
expect(getTasksForComponent).toHaveBeenCalledTimes(3);
+
+ // Make sure the timeout was cleared. It should not be called again.
+ expect(jest.getTimerCount()).toBe(0);
});
});
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
expect(mockedReplace).not.toHaveBeenCalled();
+ // Since component.analysisDate is undefined we trigger setTimeout
+ expect(jest.getTimerCount()).toBe(1);
jest.runOnlyPendingTimers();
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
+
+ // Since we have condition (component.analysisDate is undefined) that will lead to endless loop,
+ // it is easier to enable realTimers to avoid act() warnings.
jest.useRealTimers();
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
- expect(mockedReplace).toHaveBeenCalledWith(getProjectUrl(componentKey));
+ // getTasksForComponent is called but not finished yet, so we need to wait for it to finish
+ await waitFor(() => expect(mockedReplace).toHaveBeenCalledWith(getProjectUrl(componentKey)));
});
it('should redirect to project branch dashboard from tutorials when receiving new related scan report', async () => {
push: jest.fn(),
});
+ jest.useFakeTimers();
+
renderComponentContainer(
{ hasFeature: jest.fn().mockReturnValue(true) },
`tutorials?id=${componentKey}`,
'/',
);
- jest.useFakeTimers();
-
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
expect(mockedReplace).not.toHaveBeenCalled();
+ // Since component.analysisDate is undefined we trigger setTimeout
+ expect(jest.getTimerCount()).toBe(1);
jest.runOnlyPendingTimers();
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
+
+ // Since we have condition (component.analysisDate is undefined) that will lead to endless loop,
+ // it is easier to enable realTimers to avoid act() warnings.
jest.useRealTimers();
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
- expect(mockedReplace).toHaveBeenCalledWith(getProjectUrl(componentKey, branchName));
+ // getTasksForComponent is called but not finished yet, so we need to wait for it to finish
+ await waitFor(() =>
+ expect(mockedReplace).toHaveBeenCalledWith(getProjectUrl(componentKey, branchName)),
+ );
});
it('should redirect to project pull request dashboard from tutorials when receiving new related scan report', async () => {
push: jest.fn(),
});
+ jest.useFakeTimers();
+
renderComponentContainer(
{ hasFeature: jest.fn().mockReturnValue(true) },
`tutorials?id=${componentKey}`,
'/',
);
- jest.useFakeTimers();
-
await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(1));
expect(mockedReplace).not.toHaveBeenCalled();
+ // Since component.analysisDate is undefined we trigger setTimeout
+ expect(jest.getTimerCount()).toBe(1);
jest.runOnlyPendingTimers();
+ expect(getTasksForComponent).toHaveBeenCalledTimes(2);
+
+ // Since we have condition (component.analysisDate is undefined) that will lead to endless loop,
+ // it is easier to enable realTimers to avoid act() warnings.
jest.useRealTimers();
- await waitFor(() => expect(getTasksForComponent).toHaveBeenCalledTimes(2));
- expect(mockedReplace).toHaveBeenCalledWith(getPullRequestUrl(componentKey, pullRequestKey));
+ // getTasksForComponent is called but not finished yet, so we need to wait for it to finish
+ await waitFor(() =>
+ expect(mockedReplace).toHaveBeenCalledWith(getPullRequestUrl(componentKey, pullRequestKey)),
+ );
});
});