diff --git a/test-config/fonts/scanner_cache.json b/test-config/fonts/scanner_cache.json
new file mode 100644
index 0000000..0aaf8ad
--- /dev/null
+++ b/test-config/fonts/scanner_cache.json
@@ -0,0 +1,725 @@
+{
+  "fonts": {
+    "/opt/calibre/resources/fonts/liberation/LiberationMono-Bold.ttf||307996:1710386566.0": {
+      "family_name": "Liberation Mono",
+      "font-family": "Liberation Mono",
+      "font-stretch": "normal",
+      "font-style": "normal",
+      "font-weight": "bold",
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+      "full_name": "Liberation Mono Bold",
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+      "preferred_subfamily_name": null,
+      "subfamily_name": "Bold",
+      "weight": 700,
+      "width": 5,
+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationMono-BoldItalic.ttf||284068:1710386566.0": {
+      "family_name": "Liberation Mono",
+      "font-family": "Liberation Mono",
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+      "font-style": "italic",
+      "font-weight": "bold",
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+      "full_name": "Liberation Mono Bold Italic",
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+      "width": 5,
+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationMono-Italic.ttf||281536:1710386566.0": {
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+      "font-family": "Liberation Mono",
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+      "preferred_subfamily_name": null,
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+      "width": 5,
+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationMono-Regular.ttf||319508:1710386566.0": {
+      "family_name": "Liberation Mono",
+      "font-family": "Liberation Mono",
+      "font-stretch": "normal",
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+      "font-weight": "normal",
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+      "full_name": "Liberation Mono",
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+      "width": 5,
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+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationSans-Bold.ttf||414456:1710386566.0": {
+      "family_name": "Liberation Sans",
+      "font-family": "Liberation Sans",
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+      "width": 5,
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+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationSans-BoldItalic.ttf||408996:1710386566.0": {
+      "family_name": "Liberation Sans",
+      "font-family": "Liberation Sans",
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+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationSans-Italic.ttf||415816:1710386566.0": {
+      "family_name": "Liberation Sans",
+      "font-family": "Liberation Sans",
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+      "full_name": "Liberation Sans Italic",
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+      "width": 5,
+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    },
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+      "family_name": "Liberation Sans",
+      "font-family": "Liberation Sans",
+      "font-stretch": "normal",
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+      "full_name": "Liberation Sans",
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+      "width": 5,
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+    },
+    "/opt/calibre/resources/fonts/liberation/LiberationSerif-Bold.ttf||370096:1710386566.0": {
+      "family_name": "Liberation Serif",
+      "font-family": "Liberation Serif",
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+      "font-family": "Liberation Serif",
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+    "/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf||380660:1691689145.0": {
+      "family_name": "DejaVu Serif",
+      "font-family": "DejaVu Serif",
+      "font-stretch": "normal",
+      "font-style": "normal",
+      "font-weight": "normal",
+      "fs_type": 0,
+      "full_name": "DejaVu Serif",
+      "is_bold": false,
+      "is_italic": false,
+      "is_oblique": false,
+      "is_otf": false,
+      "is_regular": true,
+      "is_wws": false,
+      "os2_version": 1,
+      "panose": [
+        2,
+        6,
+        6,
+        3,
+        5,
+        6,
+        5,
+        2,
+        2,
+        4
+      ],
+      "path": "/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf",
+      "preferred_family_name": "DejaVu Serif",
+      "preferred_subfamily_name": "Book",
+      "subfamily_name": "Book",
+      "weight": 400,
+      "width": 5,
+      "wws_family_name": null,
+      "wws_subfamily_name": null
+    }
+  },
+  "version": 2
+}
\ No newline at end of file