tests/test_api.py

from fastapi.testclient import TestClient
from src.main import app
from io import BytesIO

client = TestClient(app)

def test_coding_endpoint():
    """Test existing text input endpoint"""
    provider_notes = {
        "provider_notes": "Patient has a fever and cough."
    }
    
    response = client.post("/api/coding", json=provider_notes)
    
    assert response.status_code == 200
    data = response.json()
    
    assert "cpt_codes" in data
    assert "icd_codes" in data
    assert isinstance(data["cpt_codes"], list)
    assert isinstance(data["icd_codes"], list)


def test_file_upload_endpoint():
    """Test new file upload endpoint"""
    # Create a sample TXT file
    file_content = b"Patient John Doe presents with acute bronchitis. Cough for 5 days, productive with yellow sputum. Lung exam reveals diffuse wheezing."
    
    files = {
        "file": ("provider_notes.txt", BytesIO(file_content), "text/plain")
    }
    
    response = client.post("/api/upload-file", files=files)
    
    assert response.status_code == 200
    data = response.json()
    
    assert data["success"] is True
    assert data["filename"] == "provider_notes.txt"
    assert data["extracted_text_length"] > 0
    assert "cpt_codes" in data
    assert "icd_codes" in data
    assert isinstance(data["cpt_codes"], list)
    assert isinstance(data["icd_codes"], list)


def test_file_upload_invalid_extension():
    """Test file upload with invalid file type"""
    file_content = b"Some content"
    
    files = {
        "file": ("document.pdf", BytesIO(file_content), "application/pdf")
    }
    
    response = client.post("/api/upload-file", files=files)
    
    assert response.status_code == 400


def test_file_upload_empty_file():
    """Test file upload with empty file"""
    file_content = b""
    
    files = {
        "file": ("empty.txt", BytesIO(file_content), "text/plain")
    }
    
    response = client.post("/api/upload-file", files=files)
    
    assert response.status_code == 400