fix: Fix multiple bugs with new authentication flow

electron/diagnostics/diagnostics.rules.spec.ts

@@ -0,0 +1,53 @@
+import {
+  describe,
+  it,
+  expect
+} from 'vitest';
+import {
+  formatPerfDiagLine,
+  pushRingBuffer,
+  resolveDiagnosticsFilePath
+} from './diagnostics.rules';
+
+describe('pushRingBuffer', () => {
+  it('appends items until capacity is reached', () => {
+    expect(pushRingBuffer([1, 2], 3, 4)).toEqual([
+      1,
+      2,
+      3
+    ]);
+  });
+
+  it('drops the oldest items when capacity is exceeded', () => {
+    expect(pushRingBuffer([
+      1,
+      2,
+      3
+    ], 4, 3)).toEqual([
+      2,
+      3,
+      4
+    ]);
+  });
+});
+
+describe('formatPerfDiagLine', () => {
+  it('serializes one JSON object per line', () => {
+    const line = formatPerfDiagLine({
+      collectedAt: 1_700_000_000_000,
+      source: 'main',
+      type: 'process',
+      payload: { browserKb: 128 }
+    });
+
+    expect(line).toBe('{"collectedAt":1700000000000,"source":"main","type":"process","payload":{"browserKb":128}}');
+    expect(line.endsWith('\n')).toBe(false);
+  });
+});
+
+describe('resolveDiagnosticsFilePath', () => {
+  it('places session files under diagnostics/', () => {
+    expect(resolveDiagnosticsFilePath('/tmp/user-data', 'session-1'))
+      .toBe('/tmp/user-data/diagnostics/perf-session-1.jsonl');
+  });
+});