fix authority normalization

lib/index.js

@@ -88,6 +88,9 @@ const resolveReference = (strategy) => (reference, base) => {
 
     if (resolvedComponents.authority === undefined) {
       resolvedComponents.authority = baseComponents.authority;
+      resolvedComponents.userinfo = baseComponents.userinfo;
+      resolvedComponents.host = baseComponents.host;
+      resolvedComponents.port = baseComponents.port;
 
       if (resolvedComponents.path === "") {
         resolvedComponents.path = baseComponents.path;
@@ -165,7 +168,10 @@ const getSegment = (path) => {
 /** @type (strategy: Strategy, components: API.IdentifierComponents) => string */
 const composeIdentifier = (strategy, components) => {
   let resolved = components.scheme.toLowerCase() + ":";
-  resolved += components.authority === undefined ? "" : "//" + components.authority.toLowerCase();
+  resolved += components.authority === undefined ? "" : "//"
+    + (components.userinfo === undefined ? "" : components.userinfo + "@")
+    + components.host.toLowerCase()
+    + (components.port === undefined ? "" : ":" + components.port);
   resolved += strategy.normalizePath(components.path);
   resolved += components.query === undefined ? "" : "?" + strategy.normalizeQuery(components.query);
   resolved += components.fragment === undefined ? "" : "#" + strategy.normalizeFragment(components.fragment);

lib/resolve-reference.test.js

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "vitest";
-import { resolveIri } from "./index.js";
+import { normalizeUri, resolveIri } from "./index.js";
 
 
 const resolveTests = [
@@ -65,3 +65,13 @@ describe("resolveReference", () => {
     });
   });
 });
+
+describe("normalizeUri", () => {
+  test("normalize userinfo", () => {
+    const input = "Https://JDesrosiers@Example.com";
+    const expected = "https://JDesrosiers@example.com";
+    const actual = normalizeUri(input);
+
+    expect(actual).to.equal(expected);
+  });
+});