Fix UnicodeDecodeError when running crewai create crew on Windows (issue #2715)

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/cli/test_create_crew.py

@@ -0,0 +1,77 @@
+import os
+import tempfile
+import unittest
+from pathlib import Path
+from unittest.mock import patch, MagicMock
+
+import click
+from click.testing import CliRunner
+
+from crewai.cli.cli import create
+from crewai.cli.create_crew import create_crew
+
+
+class TestCreateCrew(unittest.TestCase):
+    def setUp(self):
+        self.runner = CliRunner()
+        self.temp_dir = tempfile.TemporaryDirectory()
+        self.test_dir = Path(self.temp_dir.name)
+        
+    def tearDown(self):
+        self.temp_dir.cleanup()
+        
+    @patch("crewai.cli.create_crew.get_provider_data")
+    @patch("crewai.cli.create_crew.select_provider")
+    @patch("crewai.cli.create_crew.select_model")
+    @patch("crewai.cli.create_crew.write_env_file")
+    @patch("crewai.cli.create_crew.load_env_vars")
+    @patch("click.confirm")
+    def test_create_crew_handles_unicode(self, mock_confirm, mock_load_env, 
+                                         mock_write_env, mock_select_model, 
+                                         mock_select_provider, mock_get_provider_data):
+        """Test that create_crew command handles Unicode properly."""
+        mock_confirm.return_value = True
+        mock_load_env.return_value = {}
+        mock_get_provider_data.return_value = {"openai": ["gpt-4"]}
+        mock_select_provider.return_value = "openai"
+        mock_select_model.return_value = "gpt-4"
+        
+        templates_dir = Path("src/crewai/cli/templates/crew")
+        templates_dir.mkdir(parents=True, exist_ok=True)
+        
+        template_content = """
+        Hello {{name}}! Unicode test: 你好, こんにちは, Привет 🚀
+        Class: {{crew_name}}
+        Folder: {{folder_name}}
+        """
+        
+        (templates_dir / "tools").mkdir(exist_ok=True)
+        (templates_dir / "config").mkdir(exist_ok=True)
+        
+        for file_name in [".gitignore", "pyproject.toml", "README.md", "__init__.py", "main.py", "crew.py"]:
+            with open(templates_dir / file_name, "w", encoding="utf-8") as f:
+                f.write(template_content)
+                
+        (templates_dir / "knowledge").mkdir(exist_ok=True)
+        with open(templates_dir / "knowledge" / "user_preference.txt", "w", encoding="utf-8") as f:
+            f.write(template_content)
+            
+        for file_path in ["tools/custom_tool.py", "tools/__init__.py", "config/agents.yaml", "config/tasks.yaml"]:
+            (templates_dir / file_path).parent.mkdir(exist_ok=True, parents=True)
+            with open(templates_dir / file_path, "w", encoding="utf-8") as f:
+                f.write(template_content)
+        
+        with patch("crewai.cli.create_crew.Path") as mock_path:
+            mock_path.return_value = self.test_dir
+            mock_path.side_effect = lambda x: self.test_dir / x if isinstance(x, str) else x
+            
+            create_crew("test_crew", skip_provider=True)
+            
+        crew_dir = self.test_dir / "test_crew"
+        for root, _, files in os.walk(crew_dir):
+            for file in files:
+                file_path = os.path.join(root, file)
+                with open(file_path, "r", encoding="utf-8") as f:
+                    content = f.read()
+                    self.assertIn("你好", content, f"Unicode characters not preserved in {file_path}")
+                    self.assertIn("🚀", content, f"Emoji not preserved in {file_path}")