rust_multistackvm 0.38.0

Stack-based virtual machine on top of rust_multistack crate
Documentation 
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#[cfg(test)]
mod tests {
    #![allow(unused_imports)]
    use super::*;
    use rust_dynamic::value::Value;
    use rust_multistack::stack::Stack;
    use rust_multistackvm::multistackvm::VM;


    #[test]
    fn test_vm_apply_convert_to_string() {
        let mut vm = VM::new();
        vm.apply(Value::from(42.0).unwrap()).unwrap();
        vm.apply(Value::call("convert.to_string".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_string().unwrap(), "42.0");
    }

    #[test]
    fn test_vm_apply_convert_to_textbuffer() {
        let mut vm = VM::new();
        vm.apply(Value::from(42.0).unwrap()).unwrap();
        vm.apply(Value::call("convert.to_textbuffer".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_string().unwrap(), "42.0");
    }

    #[test]
    fn test_vm_apply_convert_to_int() {
        let mut vm = VM::new();
        vm.apply(Value::from(42.0).unwrap()).unwrap();
        vm.apply(Value::call("convert.to_int".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_int().unwrap(), 42 as i64);
    }

    #[test]
    fn test_vm_apply_convert_to_float() {
        let mut vm = VM::new();
        vm.apply(Value::from("42.0").unwrap()).unwrap();
        vm.apply(Value::call("convert.to_float".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_float().unwrap(), 42.0 as f64);
    }

    #[test]
    fn test_vm_apply_convert_to_bool1() {
        let mut vm = VM::new();
        vm.apply(Value::from("True").unwrap()).unwrap();
        vm.apply(Value::call("convert.to_bool".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_bool().unwrap(), true);
    }

    #[test]
    fn test_vm_apply_convert_to_bool2() {
        let mut vm = VM::new();
        vm.apply(Value::from("FALSE").unwrap()).unwrap();
        vm.apply(Value::call("convert.to_bool".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_bool().unwrap(), false);
    }

    #[test]
    fn test_vm_apply_convert_to_bool3() {
        let mut vm = VM::new();
        vm.apply(Value::from(1.0).unwrap()).unwrap();
        vm.apply(Value::call("convert.to_bool".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_bool().unwrap(), true);
    }

    #[test]
    fn test_vm_apply_convert_to_list() {
        let mut vm = VM::new();
        vm.apply(Value::from(42.0).unwrap()).unwrap();
        vm.apply(Value::call("convert.to_list".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_list().unwrap().len(), 1);
    }

    #[test]
    fn test_vm_apply_convert_to_from_json() {
        let mut vm = VM::new();
        vm.apply(Value::from(42.0).unwrap()).unwrap();
        vm.apply(Value::call("json.from_value".to_string(), Vec::new())).unwrap();
        vm.apply(Value::call("json.to_value".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        assert_eq!(val.cast_float().unwrap(), 42.0);
    }

    #[test]
    fn test_vm_apply_convert_to_matrix() {
        let mut vm = VM::new();
        // Let's create matrix for test
        let mut m1 = Value::list();
        let mut v1 = Value::list();
        v1 = v1.push(Value::from(42.0).unwrap());
        v1 = v1.push(Value::from(41.0).unwrap());
        m1 = m1.push(v1);

        vm.apply(m1).unwrap();

        // Call the matrix function
        vm.apply(Value::call("matrix".to_string(), Vec::new())).unwrap();
        let val = vm.stack.pull().expect("No pull() happens");
        let val_data = val.cast_matrix().unwrap();
        assert_eq!(val_data[0][0].cast_float().unwrap(), 42.0 as f64);
    }

}