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import pytest

class TestGradioInterface:
    """Test Gradio interface functionality"""
    
    def test_gradio_generate_soap_empty_inputs(self):
        """Test Gradio function with empty inputs"""
        def mock_gradio_generate_soap(medical_notes, uploaded_image):
            text_to_process = medical_notes.strip() if medical_notes else ""
            
            if uploaded_image is not None:
                # Mock OCR extraction
                extracted_text = "Extracted text from image"
                if not text_to_process:
                    text_to_process = extracted_text
            
            if not text_to_process:
                return "❌ Please enter medical notes manually or upload a PNG/JPG image with medical text"
            
            return "Generated SOAP note"
        
        result = mock_gradio_generate_soap("", None)
        assert "❌ Please enter medical notes manually" in result

    def test_gradio_generate_soap_with_text(self, sample_medical_text):
        """Test Gradio function with text input"""
        def mock_gradio_generate_soap(medical_notes, uploaded_image):
            text_to_process = medical_notes.strip() if medical_notes else ""
            
            if not text_to_process:
                return "❌ Please enter medical notes manually or upload a PNG/JPG image with medical text"
            
            return "Generated SOAP note from: " + text_to_process[:50] + "..."
        
        result = mock_gradio_generate_soap(sample_medical_text, None)
        assert "Generated SOAP note from:" in result
        assert "Patient: John Smith" in result

    def test_gradio_generate_soap_with_image(self, sample_image):
        """Test Gradio function with image input"""
        def mock_gradio_generate_soap(medical_notes, uploaded_image):
            text_to_process = medical_notes.strip() if medical_notes else ""
            
            if uploaded_image is not None:
                # Mock OCR extraction
                extracted_text = "Patient reports chest pain for 2 hours"
                if not text_to_process:
                    text_to_process = extracted_text
                else:
                    text_to_process = f"{text_to_process}\n\n--- Extracted from image ---\n{extracted_text}"
            
            if not text_to_process:
                return "❌ Please enter medical notes manually or upload a PNG/JPG image with medical text"
            
            return f"Generated SOAP note with {len(text_to_process)} characters"
        
        result = mock_gradio_generate_soap("", sample_image)
        assert "Generated SOAP note with" in result
        assert "characters" in result

    def test_gradio_generate_soap_text_and_image(self, sample_medical_text, sample_image):
        """Test Gradio function with both text and image"""
        def mock_gradio_generate_soap(medical_notes, uploaded_image):
            text_to_process = medical_notes.strip() if medical_notes else ""
            
            if uploaded_image is not None:
                extracted_text = "Additional findings from image"
                if text_to_process:
                    text_to_process = f"{text_to_process}\n\n--- Extracted from image ---\n{extracted_text}"
                else:
                    text_to_process = extracted_text
            
            return f"Combined input processed: {len(text_to_process)} chars"
        
        result = mock_gradio_generate_soap(sample_medical_text, sample_image)
        assert "Combined input processed:" in result
        assert "--- Extracted from image ---" in result or "chars" in result

    def test_gradio_error_handling(self):
        """Test error handling in Gradio interface"""
        def mock_gradio_generate_soap(medical_notes, uploaded_image):
            try:
                # Simulate an error condition
                if medical_notes == "ERROR_TEST":
                    raise Exception("Simulated processing error")
                
                text_to_process = medical_notes.strip() if medical_notes else ""
                if not text_to_process and uploaded_image is None:
                    return "❌ Please enter medical notes manually or upload a PNG/JPG image with medical text"
                
                return "Success"
            except Exception as e:
                return f"❌ Error generating SOAP note: {str(e)}"
        
        # Test error case
        result = mock_gradio_generate_soap("ERROR_TEST", None)
        assert "❌ Error generating SOAP note:" in result
        
        # Test empty input case
        result = mock_gradio_generate_soap("", None)
        assert "❌ Please enter medical notes manually" in result
        
        # Test success case
        result = mock_gradio_generate_soap("Valid input", None)
        assert result == "Success"