Add Windows installer packaging

tests/unit/package-windows.test.js

@@ -0,0 +1,32 @@
+'use strict';
+
+const fs = require('node:fs');
+const path = require('node:path');
+const test = require('node:test');
+const assert = require('node:assert/strict');
+
+const { makeTmpDir, rmrf } = require('./helpers');
+const { createWindowsInstallerConfig, findInstallerExe } = require('../../scripts/package-windows');
+
+test('Windows packaging uses an assisted NSIS installer', (t) => {
+  const config = createWindowsInstallerConfig('/tmp/stepforge-output');
+
+  assert.deepEqual(config.win.target, ['nsis']);
+  assert.equal(config.nsis.oneClick, false);
+  assert.equal(config.nsis.allowToChangeInstallationDirectory, true);
+  assert.equal(config.nsis.createDesktopShortcut, true);
+  assert.equal(config.nsis.createStartMenuShortcut, true);
+  assert.equal(config.nsis.shortcutName, 'StepForge');
+  assert.equal(config.asar, true);
+  assert.ok(config.files.includes('app/**/*'));
+  assert.ok(config.files.includes('core/**/*'));
+  assert.ok(config.files.includes('exporters/**/*'));
+  assert.ok(!config.files.includes('assets/**/*'));
+
+  const tmp = makeTmpDir('windows-installer');
+  t.after(() => rmrf(tmp));
+  fs.mkdirSync(path.join(tmp, 'nested', 'deeper'), { recursive: true });
+  const installer = path.join(tmp, 'nested', 'deeper', 'StepForge Setup 0.2.0.exe');
+  fs.writeFileSync(installer, Buffer.from('fake installer'));
+  assert.equal(findInstallerExe(tmp), installer);
+});