Add additional tests for edge cases in provider data fetching

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

tests/cli/provider_test.py

@@ -1,3 +1,4 @@
+import json
 import tempfile
 from pathlib import Path
 from unittest import mock
@@ -9,6 +10,7 @@ from crewai.cli.provider import (
     fetch_provider_data,
     get_provider_data,
     load_provider_data,
+    read_cache_file,
 )
 
 
@@ -59,6 +61,68 @@ class TestProviderFunctions:
         assert result is None
         mock_get.assert_called_once()
 
+    @mock.patch("crewai.cli.provider.requests.get")
+    def test_fetch_provider_data_handles_timeout(self, mock_get, mock_cache_file):
+        """Test that fetch_provider_data handles Timeout exception properly."""
+        mock_get.side_effect = requests.Timeout("Connection timed out")
+
+        result = fetch_provider_data(mock_cache_file)
+
+        assert result is None
+        mock_get.assert_called_once()
+
+    @mock.patch("crewai.cli.provider.requests.get")
+    def test_fetch_provider_data_handles_ssl_error(self, mock_get, mock_cache_file):
+        """Test that fetch_provider_data handles SSLError exception properly."""
+        mock_get.side_effect = requests.SSLError("SSL Certificate verification failed")
+
+        result = fetch_provider_data(mock_cache_file)
+
+        assert result is None
+        mock_get.assert_called_once()
+
+    @mock.patch("crewai.cli.provider.requests.get")
+    def test_fetch_provider_data_handles_json_decode_error(
+        self, mock_get, mock_response, mock_cache_file
+    ):
+        """Test that fetch_provider_data handles JSONDecodeError properly."""
+        mock_get.return_value = mock_response
+        mock_response.iter_content.return_value = [b"invalid json"]
+
+        result = fetch_provider_data(mock_cache_file)
+
+        assert result is None
+        mock_get.assert_called_once()
+
+    @mock.patch("builtins.open", new_callable=mock.mock_open, read_data="invalid json")
+    def test_read_cache_file_handles_json_decode_error(self, mock_file, mock_cache_file):
+        """Test that read_cache_file handles JSONDecodeError properly."""
+        with mock.patch.object(Path, "exists", return_value=True):
+            result = read_cache_file(mock_cache_file)
+
+        assert result is None
+        mock_file.assert_called_once_with(mock_cache_file, "r")
+
+    @mock.patch("builtins.open")
+    def test_read_cache_file_handles_os_error(self, mock_file, mock_cache_file):
+        """Test that read_cache_file handles OSError properly."""
+        mock_file.side_effect = OSError("File I/O error")
+        with mock.patch.object(Path, "exists", return_value=True):
+            result = read_cache_file(mock_cache_file)
+
+        assert result is None
+        mock_file.assert_called_once_with(mock_cache_file, "r")
+
+    @mock.patch("builtins.open", new_callable=mock.mock_open, read_data='{"key": [1, 2, 3]}')
+    def test_read_cache_file_handles_invalid_format(self, mock_file, mock_cache_file):
+        """Test that read_cache_file handles invalid data format properly."""
+        with mock.patch.object(Path, "exists", return_value=True):
+            with mock.patch("json.load", return_value=["not", "a", "dict"]):
+                result = read_cache_file(mock_cache_file)
+
+        assert result is None
+        mock_file.assert_called_once_with(mock_cache_file, "r")
+
     @mock.patch("crewai.cli.provider.fetch_provider_data")
     @mock.patch("crewai.cli.provider.read_cache_file")
     def test_load_provider_data_with_ssl_verify(