From 4e4ba936a938803635de77216eee6d44aecb0fb4 Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pooya@pi0.io>
Date: Thu, 24 Aug 2023 20:17:04 +0200
Subject: [PATCH] feat(stringifyParsedURL): support partial url inputs
 (resolves #166)

---
 src/parse.ts           | 27 ++++++++++-----------------
 test/utilities.test.ts | 14 +++++++++++++-
 2 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/src/parse.ts b/src/parse.ts
index e62813e1..773a3e46 100644
--- a/src/parse.ts
+++ b/src/parse.ts
@@ -117,23 +117,16 @@ export function parseHost(input = ""): ParsedHost {
  * @param [parsed] - The parsed URL
  * @returns A stringified URL.
  */
-export function stringifyParsedURL(parsed: ParsedURL): string {
-  const fullpath =
-    parsed.pathname +
-    (parsed.search
-      ? (parsed.search.startsWith("?") ? "" : "?") + parsed.search
-      : "") +
-    parsed.hash;
-  if (!parsed.protocol) {
-    return fullpath;
-  }
-  return (
-    parsed.protocol +
-    "//" +
-    (parsed.auth ? parsed.auth + "@" : "") +
-    parsed.host +
-    fullpath
-  );
+export function stringifyParsedURL(parsed: Partial<ParsedURL>): string {
+  const pathname = parsed.pathname || "";
+  const search = parsed.search
+    ? (parsed.search.startsWith("?") ? "" : "?") + parsed.search
+    : "";
+  const hash = parsed.hash || "";
+  const auth = parsed.auth ? parsed.auth + "@" : "";
+  const host = parsed.host || "";
+  const proto = parsed.protocol ? parsed.protocol + "//" : "";
+  return proto + auth + host + pathname + search + hash;
 }
 
 const FILENAME_STRICT_REGEX = /\/([^/]+\.[^/]+)$/;
diff --git a/test/utilities.test.ts b/test/utilities.test.ts
index 42c5ff53..fb653b63 100644
--- a/test/utilities.test.ts
+++ b/test/utilities.test.ts
@@ -109,11 +109,23 @@ describe("stringifyParsedURL", () => {
       input: "/test?query=123,123#hash, test",
       out: "/test?query=123,123#hash, test",
     },
+    {
+      input: { host: "google.com" },
+      out: "google.com",
+    },
+    {
+      input: { protocol: "https:", host: "google.com" },
+      out: "https://google.com",
+    },
   ];
 
   for (const t of tests) {
     test(t.input.toString(), () => {
-      expect(stringifyParsedURL(parsePath(t.input))).toBe(t.out);
+      expect(
+        stringifyParsedURL(
+          typeof t.input === "string" ? parsePath(t.input) : t.input
+        )
+      ).toBe(t.out);
     });
   }
 });