Pillify http and non-prefixed matrix.to links (#10277)

test/utils/permalinks/MatrixToPermalinkConstructor-test.ts

@@ -0,0 +1,44 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import MatrixToPermalinkConstructor from "../../../src/utils/permalinks/MatrixToPermalinkConstructor";
+import { PermalinkParts } from "../../../src/utils/permalinks/PermalinkConstructor";
+
+describe("MatrixToPermalinkConstructor", () => {
+    const peramlinkConstructor = new MatrixToPermalinkConstructor();
+
+    describe("parsePermalink", () => {
+        it.each([
+            ["empty URL", ""],
+            ["something that is not an URL", "hello"],
+            ["should raise an error for a non-matrix.to URL", "https://example.com/#/@user:example.com"],
+        ])("should raise an error for %s", (name: string, url: string) => {
+            expect(() => peramlinkConstructor.parsePermalink(url)).toThrow(
+                new Error("Does not appear to be a permalink"),
+            );
+        });
+
+        it.each([
+            ["(https)", "https://matrix.to/#/@user:example.com"],
+            ["(http)", "http://matrix.to/#/@user:example.com"],
+            ["without protocol", "matrix.to/#/@user:example.com"],
+        ])("should parse an MXID %s", (name: string, url: string) => {
+            expect(peramlinkConstructor.parsePermalink(url)).toEqual(
+                new PermalinkParts(null, null, "@user:example.com", null),
+            );
+        });
+    });
+});