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chore(storybook): waitForPageReady for CI #1554

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Jan 30, 2025
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21 changes: 21 additions & 0 deletions ui/.storybook/preview-head.html
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
<!--
~ Copyright 2025 Splunk Inc.
~
~ Licensed under the Apache License, Version 2.0 (the "License");
~ you may not use this file except in compliance with the License.
~ You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
~
-->

<link rel="preload" as="font" type="font/woff" href="/fonts/splunkdatasansmono-regular.woff" />
<link rel="preload" as="font" type="font/woff" href="/fonts/splunkdatasans-bold.woff" />
<link rel="preload" as="font" type="font/woff" href="/fonts/splunkdatasans-medium.woff" />
<link rel="preload" as="font" type="font/woff" href="/fonts/splunkdatasans-regular.woff" />
11 changes: 8 additions & 3 deletions ui/.storybook/test-runner.ts
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { getStoryContext, TestRunnerConfig } from '@storybook/test-runner';
import { getStoryContext, TestRunnerConfig, waitForPageReady } from '@storybook/test-runner';
import { toMatchImageSnapshot } from 'jest-image-snapshot';

const config: TestRunnerConfig = {
Expand Down Expand Up @@ -38,8 +38,13 @@ const config: TestRunnerConfig = {
const customReceivedDir = `${process.cwd()}/test-reports/visual/image_snapshot_received/`;

// can't use waitForPageReady because networkidle never fires due to HMR for locally running Storybook
await page.waitForLoadState('domcontentloaded');
await page.waitForLoadState('load');
if (process.env.CI) {
await waitForPageReady(page);
} else {
await page.waitForLoadState('domcontentloaded');
await page.waitForLoadState('load');
}

await page.evaluate(() => document.fonts.ready);

const image = await page.screenshot({ animations: 'disabled', scale: 'css' });
Expand Down
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