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

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

tests/cli/test_encoding.py

@@ -0,0 +1,84 @@
+import os
+import tempfile
+import unittest
+from pathlib import Path
+from unittest.mock import patch
+
+from crewai.cli.utils import copy_template, load_env_vars, write_env_file, tree_find_and_replace
+from crewai.cli.provider import read_cache_file, fetch_provider_data
+
+
+class TestEncoding(unittest.TestCase):
+    def setUp(self):
+        self.temp_dir = tempfile.TemporaryDirectory()
+        self.test_dir = Path(self.temp_dir.name)
+        
+        self.unicode_content = "Hello Unicode: 你好, こんにちは, Привет, مرحبا, 안녕하세요 🚀"
+        self.src_file = self.test_dir / "src_file.txt"
+        self.dst_file = self.test_dir / "dst_file.txt"
+        
+        with open(self.src_file, "w", encoding="utf-8") as f:
+            f.write(self.unicode_content)
+            
+    def tearDown(self):
+        self.temp_dir.cleanup()
+        
+    def test_copy_template_handles_unicode(self):
+        """Test that copy_template handles Unicode characters properly."""
+        copy_template(
+            self.src_file, 
+            self.dst_file, 
+            "test_name", 
+            "TestClass", 
+            "test_folder"
+        )
+        
+        with open(self.dst_file, "r", encoding="utf-8") as f:
+            content = f.read()
+            
+        self.assertIn("你好", content)
+        self.assertIn("こんにちは", content)
+        self.assertIn("🚀", content)
+        
+    def test_env_vars_handle_unicode(self):
+        """Test that environment variable functions handle Unicode characters properly."""
+        test_env_path = self.test_dir / ".env"
+        test_env_vars = {
+            "KEY1": "Value with Unicode: 你好",
+            "KEY2": "More Unicode: こんにちは 🚀"
+        }
+        
+        write_env_file(self.test_dir, test_env_vars)
+        
+        loaded_vars = load_env_vars(self.test_dir)
+        
+        self.assertEqual(loaded_vars["KEY1"], "Value with Unicode: 你好")
+        self.assertEqual(loaded_vars["KEY2"], "More Unicode: こんにちは 🚀")
+        
+    def test_tree_find_and_replace_handles_unicode(self):
+        """Test that tree_find_and_replace handles Unicode characters properly."""
+        test_file = self.test_dir / "replace_test.txt"
+        with open(test_file, "w", encoding="utf-8") as f:
+            f.write("Replace this: PLACEHOLDER with Unicode: 你好")
+            
+        tree_find_and_replace(self.test_dir, "PLACEHOLDER", "🚀")
+        
+        with open(test_file, "r", encoding="utf-8") as f:
+            content = f.read()
+            
+        self.assertIn("Replace this: 🚀 with Unicode: 你好", content)
+        
+    @patch("crewai.cli.provider.requests.get")
+    def test_provider_functions_handle_unicode(self, mock_get):
+        """Test that provider data functions handle Unicode properly."""
+        mock_response = unittest.mock.Mock()
+        mock_response.iter_content.return_value = [self.unicode_content.encode("utf-8")]
+        mock_response.headers.get.return_value = str(len(self.unicode_content))
+        mock_get.return_value = mock_response
+        
+        cache_file = self.test_dir / "cache.json"
+        with open(cache_file, "w", encoding="utf-8") as f:
+            f.write('{"model": "Unicode test: 你好 🚀"}')
+            
+        cache_data = read_cache_file(cache_file)
+        self.assertEqual(cache_data["model"], "Unicode test: 你好 🚀")