fn write_1()

in src/session/buffer.rs [171:192]

• 18 lines of code
• 1 McCabe index (conditional complexity)

    fn write_1() {
        let mut buffer = Buffer::with_capacity(8);
        assert_eq!(buffer.len(), 0);
        assert_eq!(buffer.available_capacity(), 8);
        assert!(buffer.is_empty());

        // first write fits in buffer
        buffer.extend_from_slice(b"GET ");
        assert_eq!(buffer.len(), 4);
        assert_eq!(buffer.available_capacity(), 4);
        assert!(!buffer.is_empty());
        let content: &[u8] = buffer.borrow();
        assert_eq!(content, b"GET ");

        // second write causes buffer to grow
        buffer.extend_from_slice(b"SOME_KEY\r\n");
        assert_eq!(buffer.len(), 14);
        assert_eq!(buffer.available_capacity(), 2);
        assert!(!buffer.is_empty());
        let content: &[u8] = buffer.borrow();
        assert_eq!(content, b"GET SOME_KEY\r\n");
    }