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Better error message

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This commit is contained in:
Gert Hengeveld 2022-07-01 11:30:51 +02:00
parent a9b75cfc20
commit 96fb6c2c56
1 changed files with 9 additions and 4 deletions
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13
lib/preview-web/src/PreviewWeb.mockdata.ts
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@ -116,7 +116,8 @@ export const mockChannel = {
export const waitForEvents = (
events: string[],
predicate: (...args: any[]) => boolean = () => true
predicate: (...args: any[]) => boolean = () => true,
debugLabel?: string
) => {
// We've already emitted a render event. NOTE if you want to test a second call,
// ensure you call `mockChannel.emit.mockClear()` before `waitFor...`
@ -137,7 +138,9 @@ export const waitForEvents = (
events.forEach((event) => mockChannel.on(event, listener));
// Don't wait too long
waitForQuiescence().then(() => reject(new Error('Event was not emitted in time')));
waitForQuiescence().then(() =>
reject(new Error(`Event was not emitted in time: ${debugLabel || events}`))
);
});
};
@ -152,8 +155,10 @@ export const waitForRender = () =>
STORY_MISSING,
]);
export const waitForRenderPhase = (phase: RenderPhase) =>
waitForEvents([STORY_RENDER_PHASE_CHANGED], ({ newPhase }) => newPhase === phase);
export const waitForRenderPhase = (phase: RenderPhase) => {
const label = `${STORY_RENDER_PHASE_CHANGED} to ${phase}`;
return waitForEvents([STORY_RENDER_PHASE_CHANGED], ({ newPhase }) => newPhase === phase, label);
};
// A little trick to ensure that we always call the real `setTimeout` even when timers are mocked
const realSetTimeout = setTimeout;