feat(runtime): Add runtime adapters, filename runtime parser and migration tool; integrate runtime selection into TsTest and add tests

test/test.migration.node.ts

@@ -0,0 +1,111 @@
+import { expect, tap } from '../ts_tapbundle/index.js';
+import { Migration } from '../ts/tstest.classes.migration.js';
+import * as plugins from '../ts/tstest.plugins.js';
+import * as paths from '../ts/tstest.paths.js';
+
+tap.test('Migration - can initialize', async () => {
+  const migration = new Migration({
+    baseDir: process.cwd(),
+    dryRun: true,
+  });
+
+  expect(migration).toBeInstanceOf(Migration);
+});
+
+tap.test('Migration - findLegacyFiles returns empty for no legacy files', async () => {
+  const migration = new Migration({
+    baseDir: process.cwd(),
+    pattern: 'test/test.migration.node.ts', // This file itself, not legacy
+    dryRun: true,
+  });
+
+  const legacyFiles = await migration.findLegacyFiles();
+  expect(legacyFiles).toEqual([]);
+});
+
+tap.test('Migration - generateReport works', async () => {
+  const migration = new Migration({
+    baseDir: process.cwd(),
+    dryRun: true,
+  });
+
+  const report = await migration.generateReport();
+  expect(report).toBeTypeOf('string');
+  expect(report).toContain('Test File Migration Report');
+});
+
+tap.test('Migration - detects legacy files when they exist', async () => {
+  // Create a temporary legacy test file
+  const tempDir = plugins.path.join(process.cwd(), '.nogit', 'test_migration');
+  await plugins.smartfile.fs.ensureEmptyDir(tempDir);
+
+  const legacyFile = plugins.path.join(tempDir, 'test.browser.ts');
+  await plugins.smartfile.memory.toFs('// Legacy test file\nexport default Promise.resolve();', legacyFile);
+
+  const migration = new Migration({
+    baseDir: tempDir,
+    pattern: '**/*.ts',
+    dryRun: true,
+  });
+
+  const legacyFiles = await migration.findLegacyFiles();
+  expect(legacyFiles.length).toEqual(1);
+  expect(legacyFiles[0]).toContain('test.browser.ts');
+
+  // Clean up
+  await plugins.smartfile.fs.removeSync(tempDir);
+});
+
+tap.test('Migration - detects both legacy pattern', async () => {
+  // Create temporary legacy files
+  const tempDir = plugins.path.join(process.cwd(), '.nogit', 'test_migration_both');
+  await plugins.smartfile.fs.ensureEmptyDir(tempDir);
+
+  const browserFile = plugins.path.join(tempDir, 'test.browser.ts');
+  const bothFile = plugins.path.join(tempDir, 'test.both.ts');
+  await plugins.smartfile.memory.toFs('// Browser test\nexport default Promise.resolve();', browserFile);
+  await plugins.smartfile.memory.toFs('// Both test\nexport default Promise.resolve();', bothFile);
+
+  const migration = new Migration({
+    baseDir: tempDir,
+    pattern: '**/*.ts',
+    dryRun: true,
+  });
+
+  const legacyFiles = await migration.findLegacyFiles();
+  expect(legacyFiles.length).toEqual(2);
+
+  // Clean up
+  await plugins.smartfile.fs.removeSync(tempDir);
+});
+
+tap.test('Migration - dry run does not modify files', async () => {
+  // Create a temporary legacy test file
+  const tempDir = plugins.path.join(process.cwd(), '.nogit', 'test_migration_dryrun');
+  await plugins.smartfile.fs.ensureEmptyDir(tempDir);
+
+  const legacyFile = plugins.path.join(tempDir, 'test.browser.ts');
+  await plugins.smartfile.memory.toFs('// Legacy test file\nexport default Promise.resolve();', legacyFile);
+
+  const migration = new Migration({
+    baseDir: tempDir,
+    pattern: '**/*.ts',
+    dryRun: true,
+    verbose: false,
+  });
+
+  const summary = await migration.run();
+
+  expect(summary.dryRun).toEqual(true);
+  expect(summary.totalLegacyFiles).toEqual(1);
+  expect(summary.migratedCount).toEqual(1); // Dry run still counts as "would migrate"
+
+  // Verify original file still exists
+  const fileExists = await plugins.smartfile.fs.fileExists(legacyFile);
+  expect(fileExists).toEqual(true);
+
+  // Clean up
+  await plugins.smartfile.fs.removeSync(tempDir);
+});
+
+export default tap.start();