Fix Jellyfin Login (#76)

src/main/fatal-error.test.ts

@@ -0,0 +1,44 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  buildFatalErrorDetails,
+  createFatalErrorReporter,
+  resetFatalErrorReporterForTests,
+} from './fatal-error';
+
+test('buildFatalErrorDetails includes context, error, and log path', () => {
+  const details = buildFatalErrorDetails({
+    context: 'Startup failed.',
+    error: new Error('boom'),
+    logFilePath: 'C:\\Users\\tester\\AppData\\Roaming\\SubMiner\\logs\\app.log',
+  });
+
+  assert.match(details, /Startup failed\./);
+  assert.match(details, /Error: boom/);
+  assert.match(details, /Log file: C:\\Users\\tester\\AppData\\Roaming\\SubMiner\\logs\\app\.log/);
+});
+
+test('fatal error reporter writes one log entry and shows one dialog', () => {
+  resetFatalErrorReporterForTests();
+  const logLines: string[] = [];
+  const dialogs: string[] = [];
+
+  const reporter = createFatalErrorReporter({
+    appendLogLine: (line) => logLines.push(line),
+    showErrorBox: (title, details) => dialogs.push(`${title}:${details}`),
+    resolveLogFilePath: () => 'C:\\SubMiner\\logs\\app.log',
+    now: () => new Date('2026-05-20T01:02:03.000Z'),
+  });
+
+  reporter('first failure', {
+    title: 'SubMiner startup failed',
+    context: 'SubMiner could not start.',
+  });
+  reporter('second failure');
+
+  assert.equal(logLines.length, 1);
+  assert.match(logLines[0]!, /\[main:fatal\] SubMiner could not start\./);
+  assert.match(logLines[0]!, /first failure/);
+  assert.equal(dialogs.length, 1);
+  assert.match(dialogs[0]!, /^SubMiner startup failed:SubMiner could not start\./);
+});