fix: add vFileShim to fix tests

SharzyL · Apr 11, 2024 · 6ef872f · 6ef872f
1 parent f6de922
commit 6ef872f
Showing 1 changed file with 23 additions and 1 deletion.
diff --git a/src/markdown.js b/src/markdown.js
@@ -33,6 +33,28 @@ function getMetadata(options) {
   }
 }
 
+// When `unified` runs process(value), it converts `value` to vFile class if `value` does not look like a vFile.
+// However, the constructor of vFile calls proc.cwd, which is not provided in vite runtime
+// To avoid vFile complaining “proc.cwd is not a function”, we use a fake vFile class that stringifies as usual but
+// never calls proc.cwd.
+// FUCK JAVASCRIPT
+class vFileShim {
+  constructor(value) {
+    this.value = value
+    this.messages = []
+    this.message = (reason, place, origin) => {
+      const msg = new VFileMessage(reason, place, origin)
+      msg.fatal = false
+      this.messages.push(msg)
+      return msg
+    }
+  }
+
+  toString() {
+    return this.value
+  }
+}
+
 export function makeMarkdown(content) {
   const metadata = { title: defaultTitle, description: "" }
   const convertedHtml = unified()
@@ -41,7 +63,7 @@ export function makeMarkdown(content) {
     .use(getMetadata, { result: metadata })  // result is written to `metadata` variable
     .use(remarkRehype)
     .use(rehypeStringify)
-    .processSync(content)
+    .processSync(new vFileShim(content))
 
   return `<!DOCTYPE html>
 <html lang='en'>