Update app.py

app.py

@@ -22,25 +22,18 @@ if st.button("Generate Test Cases"):
 
 # Export test cases
 st.sidebar.title("Export Test Cases")
-format = st.sidebar.selectbox("Select Format", ["json", "csv"], key="export_format")
 if st.sidebar.button("Export Test Cases", key="export_button"):
     if 'test_cases' in st.session_state:
         test_cases = st.session_state.test_cases
-        export_content = backend.export_test_cases(test_cases, format)
+        export_content = backend.export_test_cases(test_cases, 'csv')
 
-        if format == 'json':
-            mime_type = "application/json"
-        elif format == 'csv':
-            mime_type = "text/csv"
-        else:
-            st.sidebar.error(f"Unsupported format: {format}")
-            export_content = None
+        mime_type = "text/csv"
 
         if export_content:
             st.sidebar.download_button(
-                label=f"Download Test Cases as {format.upper()}",
+                label="Download Test Cases as CSV",
                 data=export_content,
-                file_name=f"test_cases.{format}",
+                file_name="test_cases.csv",
                 mime=mime_type,
                 key="download_button"
             )
@@ -49,4 +42,4 @@ if st.sidebar.button("Export Test Cases", key="export_button"):
 
 # Footer with a clean divider
 st.markdown("---")
-st.write("Built by the QA Automation Team")
+st.write("Built by the QA Automation Team")