From 3129565e4ebee327adb6045478b30fa06501a8e9 Mon Sep 17 00:00:00 2001
From: Maria Hutt <thetaPC@users.noreply.github.com>
Date: Mon, 8 Dec 2025 12:23:53 -0800
Subject: [PATCH] test(scripts): update palette query (#30842)

Issue number: N/A

---------

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issue. -->

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

`high-contrast` and `high-contrast-dark` palettes were not working when
requested through a URL query or hash for a test page. This was due to
the `match` not accepting hyphens so it would only save `high` which is
not a valid palette.

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Updated `match` to accept hyphens
- Added an error if an invalid palette is provided
- Added a palette fallback if an invalid palette is provided
- Added a class check for high contrast and high contrast dark

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

How to test:
1. Verify that `?palette=high-contrast`, `?palette=high-contrast-dark`,
`#palette=high-contrast`, and `#palette=high-contrast-dark` render
correctly (I recommend using [button basic
page](https://ionic-framework-git-scripts-ionic1.vercel.app/src/components/button/test/basic/))

---------

Co-authored-by: Brandy Smith <brandyscarney@users.noreply.github.com>
---
 core/scripts/testing/scripts.js | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/core/scripts/testing/scripts.js b/core/scripts/testing/scripts.js
index 965bd8183e..ff8236c6a0 100644
--- a/core/scripts/testing/scripts.js
+++ b/core/scripts/testing/scripts.js
@@ -57,11 +57,19 @@
    * Values can be `light`, `dark`, `high-contrast`,
    * or `high-contrast-dark`. Default to `light` for tests.
    */
-  const paletteQuery = window.location.search.match(/palette=([a-z]+)/);
-  const paletteHash = window.location.hash.match(/palette=([a-z]+)/);
+  const validPalettes = ['light', 'dark', 'high-contrast', 'high-contrast-dark'];
+  const paletteQuery = window.location.search.match(/palette=([a-z-]+)/);
+  const paletteHash = window.location.hash.match(/palette=([a-z-]+)/);
   const darkClass = document.body?.classList.contains('ion-palette-dark') ? 'dark' : null;
+  const highContrastClass = document.body?.classList.contains('ion-palette-high-contrast') ? 'high-contrast' : null;
+  const highContrastDarkClass = darkClass && highContrastClass ? 'high-contrast-dark' : null;
 
-  const paletteName = paletteQuery?.[1] || paletteHash?.[1] || darkClass || 'light';
+  let paletteName = paletteQuery?.[1] || paletteHash?.[1] || highContrastDarkClass || darkClass || highContrastClass || 'light';
+
+  if (!validPalettes.includes(paletteName)) {
+    console.warn(`Invalid palette name: '${paletteName}'. Falling back to 'light' palette.`);
+    paletteName = 'light';
+  }
 
   if (paletteName !== 'light') {
     const linkTag = document.createElement('link');