Archify Diagram Viewer 0.1.0

VS Code extension that previews Archify diagrams from their JSON sources
(live, as you type) and opens rendered Archify HTML in a viewer tab.
Bundles the Archify 3.0.1 renderer and runs it on VS Code's Node runtime.
Adds validation diagnostics, JSON schema help, source-link navigation,
export saving, render-to-file and open-in-browser commands.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

test/detect.test.ts

@@ -0,0 +1,49 @@
+import assert from 'node:assert/strict';
+import { test } from 'node:test';
+import { hasSourceEvidence, isArchifyHtml, readDiagramSource, stripSourceEvidence, typeFromFilename } from '../src/detect';
+import { pointerSegments, rangeForPointer } from '../src/jsonPointer';
+
+test('reads diagram_type from content', () => {
+  const source = readDiagramSource('{"schema_version":1,"diagram_type":"sequence","meta":{}}', 'plain.json');
+  assert.equal(source?.type, 'sequence');
+});
+
+test('falls back to the file name for unparseable sources', () => {
+  assert.equal(readDiagramSource('{"diagram_type": ', 'x.workflow.json')?.type, 'workflow');
+  assert.equal(readDiagramSource('{"name":"pkg"}', 'package.json'), undefined);
+  assert.equal(typeFromFilename('/a/b/Web.Architecture.json'), 'architecture');
+});
+
+test('recognizes Archify HTML by its generator meta', () => {
+  assert.ok(isArchifyHtml('<html><head><meta name="generator" content="archify 3.0.1"></head></html>'));
+  assert.ok(!isArchifyHtml('<html><head><meta name="generator" content="hugo"></head></html>'));
+});
+
+test('strips source evidence without touching the original', () => {
+  const diagram = {
+    meta: { title: 't', repository: { url: 'https://github.com/a/b', revision: 'x' } },
+    components: [{ id: 'a', sources: [{ path: 'src/a.ts' }] }, { id: 'b' }],
+  };
+  assert.ok(hasSourceEvidence('architecture', diagram));
+  const stripped = stripSourceEvidence('architecture', diagram);
+  assert.ok(!hasSourceEvidence('architecture', stripped));
+  assert.ok(diagram.meta.repository, 'original keeps its repository');
+  assert.deepEqual((stripped.components as unknown[])[1], { id: 'b' });
+});
+
+test('json pointer segments decode escapes and indexes', () => {
+  assert.deepEqual(pointerSegments('/components/0/a~1b~0c'), ['components', 0, 'a/b~c']);
+  assert.deepEqual(pointerSegments(''), []);
+});
+
+test('json pointer ranges point at keys for containers and values for leaves', () => {
+  const text = '{\n  "meta": { "title": "x" },\n  "components": [ { "id": "a" } ]\n}';
+  const meta = rangeForPointer(text, '/meta');
+  assert.equal(text.slice(meta.start, meta.end), '"meta"');
+  const title = rangeForPointer(text, '/meta/title');
+  assert.equal(text.slice(title.start, title.end), '"x"');
+  const item = rangeForPointer(text, '/components/0');
+  assert.equal(text.slice(item.start, item.end), '{');
+  const missing = rangeForPointer(text, '/components/0/label');
+  assert.equal(text.slice(missing.start, missing.end), '{', 'falls back to the nearest existing ancestor');
+});