Add one nontrivial test

package.json

@@ -17,9 +17,9 @@
   "devDependencies": {
     "@codemirror/language": "^6.10.1",
     "@lezer/highlight": "^1.2.0",
-    "typescript": "^5.3.3",
-    "@types/jest": "^29.2.3",
+    "@types/jest": "^29.5.12",
     "jest": "^29.3.1",
-    "ts-jest": "^29.0.3"
+    "ts-jest": "^29.0.3",
+    "typescript": "^5.3.3"
   }
 }

src/encoding.ts

@@ -26,17 +26,21 @@ async function decompressedOf(bytes: Uint8Array): Promise<Uint8Array> {
   return await bytesOfStream(streamOfBytes(bytes).pipeThrough(new DecompressionStream('gzip')));
 }
 
-export async function encode(text: string): Promise<string> {
-  // // v1:
-  // return encodeURIComponent(btoa(text));
+export function encodeWithV1(text: string): string {
+  return encodeURIComponent(btoa(text));
+}
 
-  // v2:
+export async function encodeWithV2(text: string): Promise<string> {
   const x1 = bytesOfString(text);
   const encoded = encodeURIComponent(base64OfBytes(await compressedOf(bytesOfString(text))).str);
   return 'v2/' + encoded;
 }
 
-export async function decode(fragment: string) {
+export async function encode(text: string): Promise<string> {
+  return encodeWithV2(text);
+}
+
+export async function decode(fragment: string): Promise<string> {
   const uridecoded = decodeURIComponent(fragment);
   if (uridecoded.match(/^v2\//)) {
     const stripPrefix = uridecoded.replace(/v2\//, '');

tests/test-encoding.ts

@@ -0,0 +1,21 @@
+import { decode, encodeWithV1, encodeWithV2 } from "../src/encoding";
+
+
+const exampleTwelf = `
+a: type. c: a.
+%% some comment text with some punctuation: # $ % ^ &
+`;
+
+describe('url encoding', () => {
+  test('should roundtrip with v1', async () => {
+    expect(await decode(encodeWithV1(exampleTwelf))).toEqual(exampleTwelf);
+  });
+
+  // I'd like to test v2 in nodejs, but I need to figure out a strategy
+  // for polyfilling Blob and CompressionStream
+
+  // test('should roundtrip with v2', async () => {
+  //   expect(await decode(await encodeWithV2(exampleTwelf))).toEqual(exampleTwelf);
+  // });
+
+});

tsconfig.json

@@ -31,7 +31,7 @@
     // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
     // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
     // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
-    "typeRoots": ["./typings"],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+    // "typeRoots": ["./typings"],                                  /* Specify multiple folders that act like './node_modules/@types'. */
 //    "types": ['ace'],                                      /* Specify type package names to be included without being referenced in a source file. */
     // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
     // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */