fix: Implement reviewer suggestions for test improvements and version constraints

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

pyproject.toml

@@ -11,7 +11,7 @@ dependencies = [
     # Core Dependencies
     "pydantic>=2.4.2",
     "openai>=1.13.3",
-    "litellm>=1.65.1",
+    "litellm>=1.65.1,<2.0.0",
     "instructor>=1.3.3",
     # Text Processing
     "pdfplumber>=0.11.4",

tests/test_dependency_compatibility.py

@@ -1,24 +1,62 @@
+"""
+Dependency Compatibility Tests
+
+Tests to verify compatibility between litellm and other packages that depend on httpx.
+
+Known working versions:
+- httpx >= 0.28.1
+- litellm >= 1.65.1
+- exa-py (optional)
+- google-genai (optional)
+"""
 import importlib.util
 import sys
 
 import pytest
 
 
-def test_httpx_litellm_compatibility():
+def _check_optional_dependency(package_name):
+    """Centralized handling of optional dependency checks"""
+    if importlib.util.find_spec(package_name) is None:
+        pytest.skip(f"{package_name} not installed. Skipping compatibility test.")
+    return True
+
+
+@pytest.fixture(autouse=True)
+def log_versions():
+    """Log all relevant package versions before tests"""
+    import httpx
+    import litellm
+    
+    versions = {
+        "httpx": httpx.__version__,
+    }
+    print("\nRunning tests with versions:", versions)
+    return versions
+
+
+class TestDependencyCompatibility:
+    """Test suite for checking package dependency compatibility"""
+    
+    def test_httpx_litellm_compatibility(self):
         """Test that litellm is compatible with the latest httpx"""
         import httpx
         import litellm
         
+        try:
             assert hasattr(httpx, "__version__")
+            min_required_version = "0.28.1"  # Minimum required version
+            from packaging import version
+            assert version.parse(httpx.__version__) >= version.parse(min_required_version)
+        except (AssertionError, ImportError) as e:
+            pytest.fail(f"httpx version {httpx.__version__} is not compatible. Minimum required: {min_required_version}. Error: {e}")
         
         print(f"Using httpx version: {httpx.__version__}")
         print("Successfully imported litellm")
     
-
-def test_exa_py_compatibility():
+    def test_exa_py_compatibility(self):
         """Test that exa-py can be imported alongside litellm"""
-    if importlib.util.find_spec("exa") is None:
-        pytest.skip("exa-py not installed")
+        _check_optional_dependency("exa")
         
         import exa
         import httpx
@@ -31,11 +69,9 @@ def test_exa_py_compatibility():
         print("Successfully imported litellm")
         print(f"Using httpx version: {httpx.__version__}")
     
-
-def test_google_genai_compatibility():
+    def test_google_genai_compatibility(self):
         """Test that google-genai can be imported alongside litellm"""
-    if importlib.util.find_spec("google.generativeai") is None:
-        pytest.skip("google-genai not installed")
+        _check_optional_dependency("google.generativeai")
         
         import httpx
         import litellm