test: Added unit test for backend

Author: Avijit-Microsoft

content-gen/src/backend/requirements-dev.txt

@@ -6,6 +6,7 @@
 pytest>=8.0.0
 pytest-asyncio>=0.23.0
 pytest-cov>=5.0.0
+pytest-mock>=3.14.0
 
 # Code Quality
 black>=24.0.0

content-gen/src/pytest.ini

@@ -0,0 +1,55 @@
+[pytest]
+# Pytest configuration for backend tests
+
+# Test discovery patterns
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+
+# Asyncio configuration
+asyncio_mode = auto
+
+# Output configuration
+addopts = 
+    -v
+    --strict-markers
+    --tb=short
+    --cov=backend
+    --cov-report=term-missing
+    --cov-report=html:coverage_html
+    --cov-report=xml:coverage.xml
+    --cov-fail-under=20
+
+# Filter warnings
+filterwarnings =
+    ignore::DeprecationWarning
+    ignore::PendingDeprecationWarning
+    ignore:Unclosed client session:ResourceWarning
+    ignore:Unclosed connector:ResourceWarning
+
+# Test paths
+testpaths = tests
+
+# Coverage configuration
+[coverage:run]
+source = backend
+omit = 
+    tests/*
+    */tests/*
+    */test_*
+    */__pycache__/*
+    */site-packages/*
+    conftest.py
+    */hypercorn.conf.py
+    */ApiApp.Dockerfile
+    */WebApp.Dockerfile
+    
+[coverage:report]
+exclude_lines =
+    pragma: no cover
+    def __repr__
+    raise AssertionError
+    raise NotImplementedError
+    if __name__ == "__main__":
+    if TYPE_CHECKING:
+    @abstract