test: add unit test for logo-alt in navbar/sidebar

Author: mcanouil

tests/docs/smoke-all/2024/07/09/issue-10251/_quarto.yml

@@ -0,0 +1,19 @@
+project:
+  type: website
+
+website:
+  title: "issue-10251"
+  navbar:
+    logo: "https://quarto.org/quarto.png"
+    logo-alt: "this is the alt text that for the logo in the navbar"
+    left:
+      - href: index.qmd
+        text: Home
+  sidebar: 
+    logo: "https://quarto.org/quarto.png"
+    logo-alt: "this is the alt text that for the logo in the sidebar"
+
+format:
+  html:
+    theme: cosmo
+    toc: true

tests/docs/smoke-all/2024/07/09/issue-10251/index.qmd

@@ -0,0 +1,15 @@
+---
+title: "issue-10251"
+_quarto:
+  tests:
+    html:
+      ensureFileRegexMatches:
+        - [
+            '<img src="https://quarto.org/quarto.png" alt="this is the alt text that for the logo in the sidebar" class="sidebar-logo py-0 d-lg-inline d-none">',
+            '<img src="https://quarto.org/quarto.png" alt="this is the alt text that for the logo in the navbar" class="navbar-logo">'
+          ]
+---
+
+This is a Quarto website.
+
+To learn more about Quarto websites visit <https://quarto.org/docs/websites>.