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#![cfg_attr(not(feature = "std"), no_std)]
use ink_lang as ink;
#[ink::contract]
mod zkink {
/// Defines the storage of your contract.
/// Add new fields to the below struct in order
/// to add new static storage fields to your contract.
#[ink(storage)]
pub struct Zkink {
/// Stores a single `bool` value on the storage.
value: bool,
}
impl Zkink {
/// Constructor that initializes the `bool` value to the given `init_value`.
#[ink(constructor)]
pub fn new(init_value: bool) -> Self {
Self { value: init_value }
}
/// Constructor that initializes the `bool` value to `false`.
///
/// Constructors can delegate to other constructors.
#[ink(constructor)]
pub fn default() -> Self {
Self::new(Default::default())
}
/// A message that can be called on instantiated contracts.
/// This one flips the value of the stored `bool` from `true`
/// to `false` and vice versa.
#[ink(message)]
pub fn flip(&mut self) {
self.value = !self.value;
}
/// Simply returns the current value of our `bool`.
#[ink(message)]
pub fn get(&self) -> bool {
self.value
}
}
/// Unit tests in Rust are normally defined within such a `#[cfg(test)]`
/// module and test functions are marked with a `#[test]` attribute.
/// The below code is technically just normal Rust code.
#[cfg(test)]
mod tests {
/// Imports all the definitions from the outer scope so we can use them here.
use super::*;
/// Imports `ink_lang` so we can use `#[ink::test]`.
use ink_lang as ink;
/// We test if the default constructor does its job.
#[ink::test]
fn default_works() {
let zkink = Zkink::default();
assert_eq!(zkink.get(), false);
}
/// We test a simple use case of our contract.
#[ink::test]
fn it_works() {
let mut zkink = Zkink::new(false);
assert_eq!(zkink.get(), false);
zkink.flip();
assert_eq!(zkink.get(), true);
}
}
}