test(dart_frog_cli): dart_frog build e2e tests (#74)

Author: felangel

packages/dart_frog_cli/e2e/pubspec.yaml

@@ -6,6 +6,8 @@ environment:
   sdk: ">=2.17.0 <3.0.0"
 
 dev_dependencies:
+  dart_frog:
+    path: ../../dart_frog
   http: ^0.13.4
   meta: ^1.7.0
   path: ^1.8.2

packages/dart_frog_cli/e2e/test/dart_frog_build_test.dart

@@ -0,0 +1,59 @@
+import 'dart:io';
+import 'dart:isolate';
+
+import 'package:http/http.dart' as http;
+import 'package:path/path.dart' as path;
+import 'package:test/test.dart';
+
+import 'helpers/helpers.dart';
+
+/// Objectives:
+///
+/// * Generate a new Dart Frog project via `dart_frog create`
+/// * Generate a production build via `dart_frog build`
+/// * Ensure the server responds accordingly for built-in endpoints
+void main() {
+  group('dart_frog build', () {
+    const projectName = 'example';
+    final tempDirectory = Directory.systemTemp.createTempSync();
+    final projectDirectory = Directory(
+      path.join(tempDirectory.path, projectName),
+    );
+
+    late Isolate isolate;
+
+    setUpAll(() async {
+      await dartFrogCreate(projectName: projectName, directory: tempDirectory);
+      await dartFrogBuild(directory: projectDirectory);
+      isolate = await Isolate.spawnUri(
+        Uri.file(
+          path.join(projectDirectory.path, 'build', 'bin', 'server.dart'),
+        ),
+        [],
+        null,
+      );
+    });
+
+    tearDownAll(() async {
+      isolate.kill();
+      await tempDirectory.delete(recursive: true);
+    });
+
+    testServer('GET / returns 200 with greeting', (host) async {
+      final response = await http.get(Uri.parse(host));
+      expect(response.statusCode, equals(HttpStatus.ok));
+      expect(response.body, equals('Welcome to Dart Frog!'));
+      expect(response.headers, contains('date'));
+      expect(
+        response.headers,
+        containsPair('content-type', 'text/plain; charset=utf-8'),
+      );
+    });
+
+    testServer('GET /not_here returns 404', (host) async {
+      final response = await http.get(Uri.parse('$host/not_here'));
+      expect(response.statusCode, HttpStatus.notFound);
+      expect(response.body, 'Route not found');
+    });
+  });
+}

packages/dart_frog_cli/e2e/test/helpers/dart_frog_build.dart

@@ -0,0 +1,16 @@
+import 'dart:io';
+
+Future<void> dartFrogBuild({
+  required Directory directory,
+}) async {
+  final result = await Process.run(
+    'dart_frog',
+    ['build'],
+    workingDirectory: directory.path,
+    runInShell: true,
+  );
+
+  if (result.exitCode != 0) {
+    throw Exception('dart_frog build exited with code ${result.exitCode}');
+  }
+}

packages/dart_frog_cli/e2e/test/helpers/dart_frog_create.dart

@@ -10,7 +10,8 @@ Future<void> dartFrogCreate({
     workingDirectory: directory.path,
     runInShell: true,
   );
+
   if (result.exitCode != 0) {
-    throw Exception('dart_frog create exited with code $exitCode');
+    throw Exception('dart_frog create exited with code ${result.exitCode}');
   }
 }

packages/dart_frog_cli/e2e/test/helpers/helpers.dart

@@ -1,5 +1,6 @@
 export 'dart_analyze.dart';
 export 'dart_format.dart';
+export 'dart_frog_build.dart';
 export 'dart_frog_create.dart';
 export 'dart_frog_dev.dart';
 export 'dart_tst.dart';

packages/dart_frog_cli/e2e/test/helpers/kill_dart_frog_server.dart

@@ -7,19 +7,23 @@ Future<void> killDartFrogServer(int pid) async {
       ['/F', '/T', '/PID', '$pid'],
       runInShell: true,
     );
+
     if (result.exitCode != 0) {
       throw Exception(
         'taskkill /F /T /PID $pid exited with code ${result.exitCode}',
       );
     }
+
     return;
   }
 
   if (Platform.isLinux || Platform.isMacOS) {
     final result = await Process.run('pkill', ['-f', 'dart_frog']);
+
     if (result.exitCode != 0) {
       throw Exception('pkill -f dart_frog exited with code ${result.exitCode}');
     }
+
     return;
   }
 }