fn test_chat_stream_tool_no_tool_simple()

in router/src/chat.rs [457:527]

• 66 lines of code
• 4 McCabe index (conditional complexity)

    fn test_chat_stream_tool_no_tool_simple() {
        let mut chat_state = ChatState::new(
            true,
            StreamOptions {
                include_usage: true,
            },
            "fingerprint".to_string(),
            "model_id".to_string(),
            false,
            "0".to_string(),
        );

        let tokens = vec![
            "{\"".to_string(),
            "function".to_string(),
            "\":".to_string(),
            " {\"".to_string(),
            "_".to_string(),
            "name".to_string(),
            "\":".to_string(),
            " \"".to_string(),
            "no".to_string(),
            "_tool".to_string(),
            "\",".to_string(),
            " \"".to_string(),
            "content".to_string(),
            "\":".to_string(),
            " \"".to_string(),        // Token 14
            "I".to_string(),          // Event 1
            " am".to_string(),        // Event 2
            " a".to_string(),         // Event 3
            " helpful".to_string(),   // Event 4
            " assistant".to_string(), // Event 5
            "!\"".to_string(),        // Event 6 (with trailing quore removed)
            "}".to_string(),
            "}".to_string(),
        ];
        let tokens: Vec<_> = tokens
            .into_iter()
            .map(|text| StreamResponse {
                generated_text: None,
                token: Token {
                    id: 42,
                    text: text.to_string(),
                    logprob: 0.0,
                    special: false,
                },
                top_tokens: vec![],
                index: 0,
                details: None,
            })
            .collect();

        // Initial ignored output
        for token in &tokens[..10] {
            let events = chat_state.push(token.clone());
            if let ChatEvent::Events(events) = events {
                assert_eq!(events.len(), 0, "{events:?}");
            } else {
                panic!("Expected chat events");
            }
        }

        // No tool output
        let events = chat_state.push(tokens[10].clone());
        if let ChatEvent::NoTool = events {
            assert!(true);
        } else {
            panic!("Expected chat events");
        }
    }