test(transpile): add test for bare export ancillary types

Author: vados-cosmonic

packages/jco-transpile/test/fixtures/wit/bare-export-with-result.wit

@@ -0,0 +1,5 @@
+package fixtures:bare-export-with-result;
+
+world component {
+  export foo: func(res: result<string, string>);
+}

packages/jco-transpile/test/typegen.ts

@@ -71,4 +71,21 @@ suite('Type Generation', () => {
         assert(interfaceDeclarationContent.includes('export { _delete as delete };'));
         assert(interfaceDeclarationContent.includes('function _delete'));
     });
+
+    // https://github.com/bytecodealliance/jco/issues/627
+    test('bare exports with ancillary types', async () => {
+        const files = await generateHostTypes(`${WIT_FIXTURE_DIR}/bare-export-with-result.wit`, {
+            worldName: 'fixtures:bare-export-with-result/component',
+            guest: true,
+        });
+
+        assert.strictEqual(Object.keys(files).length, 1);
+        assert.strictEqual(Object.keys(files)[0], 'component.d.ts');
+
+        const [worldDeclaration] = Object.values(files);
+        const worldDeclarationContent = new TextDecoder().decode(worldDeclaration);
+
+        assert.include(worldDeclarationContent, 'export type Result<T, E>');
+        assert.include(worldDeclarationContent, 'declare module');
+    });
 });

packages/jco-transpile/test/vitest.ts

@@ -6,21 +6,16 @@ const REPORTERS = process.env.GITHUB_ACTIONS ? ['verbose', 'github-actions'] : [
 
 export default defineConfig({
     test: {
-        retry: 3,
         reporters: REPORTERS,
         disableConsoleIntercept: true,
         printConsoleTrace: true,
         passWithNoTests: false,
-        include: ['test/*.js'],
-        exclude: ['test/helpers.js'],
+        include: ['test/*.ts'],
+        exclude: ['test/helpers.ts'],
         testTimeout: DEFAULT_TIMEOUT_MS,
         hookTimeout: DEFAULT_TIMEOUT_MS,
         teardownTimeout: DEFAULT_TIMEOUT_MS,
+        execArgv: ['--expose-gc'],
         pool: 'forks',
-        poolOptions: {
-            forks: {
-                execArgv: ['--expose-gc'],
-            },
-        },
     },
 });