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use super::{
chain_extension::ChainExtension,
db::ExecContext,
AccountError,
EnvInstance,
OnInstance,
};
pub use super::{
db::ChainSpec,
CallData,
EmittedEvent,
};
use crate::{
Environment,
Result,
};
use ink_prelude::string::String;
use std::str::FromStr;
pub fn push_execution_context<T>(
caller: T::AccountId,
callee: T::AccountId,
gas_limit: T::Balance,
endowment: T::Balance,
call_data: CallData,
) where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance.exec_context.push(
ExecContext::build::<T>()
.caller(caller)
.callee(callee)
.gas(gas_limit)
.transferred_value(endowment)
.call_data(call_data)
.finish(),
)
})
}
pub fn pop_execution_context() {
<EnvInstance as OnInstance>::on_instance(|instance| {
instance.exec_context.pop();
})
}
pub fn set_account_balance<T>(
account_id: T::AccountId,
new_balance: T::Balance,
) -> Result<()>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account_mut::<T>(&account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(&account_id))
.map_err(Into::into)
.and_then(|account| account.set_balance::<T>(new_balance).map_err(Into::into))
})
}
pub fn get_account_balance<T>(account_id: T::AccountId) -> Result<T::Balance>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account::<T>(&account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(&account_id))
.map_err(Into::into)
.and_then(|account| account.balance::<T>().map_err(Into::into))
})
}
pub fn set_contract_rent_allowance<T>(
account_id: T::AccountId,
new_rent_allowance: T::Balance,
) -> Result<()>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account_mut::<T>(&account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(&account_id))
.map_err(Into::into)
.and_then(|account| {
account
.set_rent_allowance::<T>(new_rent_allowance)
.map_err(Into::into)
})
})
}
pub fn get_contract_rent_allowance<T>(account_id: T::AccountId) -> Result<T::Balance>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account::<T>(&account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(&account_id))
.map_err(Into::into)
.and_then(|account| account.rent_allowance::<T>().map_err(Into::into))
})
}
pub fn register_chain_extension<E>(extension: E)
where
E: ChainExtension + 'static,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.chain_extension_handler
.register(Box::new(extension));
})
}
pub fn set_block_entropy<T>(entropy: T::Hash) -> Result<()>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance.current_block_mut()?.set_entropy::<T>(entropy)
})
.map_err(Into::into)
}
pub fn update_chain_spec<F>(f: F) -> Result<()>
where
F: FnOnce(&mut ChainSpec),
{
<EnvInstance as OnInstance>::on_instance(|instance| f(instance.chain_spec_mut()));
Ok(())
}
pub fn recorded_printlns() -> impl Iterator<Item = String> {
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.console
.past_prints()
.map(ToOwned::to_owned)
.collect::<Vec<_>>()
.into_iter()
})
}
pub fn recorded_events() -> impl Iterator<Item = EmittedEvent> {
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.emitted_events
.emitted_events()
.map(Clone::clone)
.collect::<Vec<_>>()
.into_iter()
})
}
pub fn advance_block<T>() -> Result<()>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| instance.advance_block::<T>())
}
pub fn set_clear_storage_disabled(disable: bool) {
<EnvInstance as OnInstance>::on_instance(|instance| {
instance.clear_storage_disabled = disable
})
}
pub struct DefaultAccounts<T>
where
T: Environment,
{
pub alice: T::AccountId,
pub bob: T::AccountId,
pub charlie: T::AccountId,
pub django: T::AccountId,
pub eve: T::AccountId,
pub frank: T::AccountId,
}
pub fn default_accounts<T>() -> Result<DefaultAccounts<T>>
where
T: Environment,
<T as Environment>::AccountId: From<[u8; 32]>,
{
Ok(DefaultAccounts {
alice: T::AccountId::from([0x01; 32]),
bob: T::AccountId::from([0x02; 32]),
charlie: T::AccountId::from([0x03; 32]),
django: T::AccountId::from([0x04; 32]),
eve: T::AccountId::from([0x05; 32]),
frank: T::AccountId::from([0x06; 32]),
})
}
pub fn initialize_or_reset_as_default<T>() -> Result<()>
where
T: Environment,
<T as Environment>::AccountId: From<[u8; 32]>,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance.initialize_or_reset_as_default::<T>()
})
}
pub fn run_test<T, F>(f: F) -> Result<()>
where
T: Environment,
F: FnOnce(DefaultAccounts<T>) -> Result<()>,
<T as Environment>::AccountId: From<[u8; 32]>,
{
initialize_or_reset_as_default::<T>()?;
let default_accounts = default_accounts::<T>()?;
f(default_accounts)
}
pub fn get_contract_storage_rw<T>(account_id: &T::AccountId) -> Result<(usize, usize)>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account::<T>(account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(account_id))
.map_err(Into::into)
.and_then(|account| account.get_storage_rw().map_err(Into::into))
})
}
pub fn count_used_storage_cells<T>(account_id: &T::AccountId) -> Result<usize>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
instance
.accounts
.get_account::<T>(account_id)
.ok_or_else(|| AccountError::no_account_for_id::<T>(account_id))
.map_err(Into::into)
.and_then(|account| account.count_used_storage_cells().map_err(Into::into))
})
}
pub fn get_current_contract_account_id<T>() -> Result<T::AccountId>
where
T: Environment,
{
<EnvInstance as OnInstance>::on_instance(|instance| {
let exec_context = instance.exec_context()?;
let callee = exec_context.callee.decode()?;
Ok(callee)
})
}
#[derive(scale::Encode, scale::Decode)]
pub struct ContractTerminationResult<E>
where
E: Environment,
{
pub beneficiary: <E as Environment>::AccountId,
pub transferred: <E as Environment>::Balance,
}
#[cfg(feature = "std")]
use std::panic::UnwindSafe;
#[cfg(feature = "std")]
pub fn assert_contract_termination<T, F>(
should_terminate: F,
expected_beneficiary: T::AccountId,
expected_balance: T::Balance,
) where
T: Environment,
F: FnMut() + UnwindSafe,
<T as Environment>::AccountId: core::fmt::Debug,
<T as Environment>::Balance: core::fmt::Debug,
{
let value_any = ::std::panic::catch_unwind(should_terminate)
.expect_err("contract did not terminate");
let encoded_input = value_any
.downcast_ref::<String>()
.expect("panic object can not be cast");
let deserialized_vec = encoded_input
.replace("[", "")
.replace("]", "")
.split(", ")
.map(|s| u8::from_str(s).expect("u8 cannot be extracted from str"))
.collect::<Vec<u8>>();
let res: ContractTerminationResult<T> =
scale::Decode::decode(&mut &deserialized_vec[..])
.expect("input can not be decoded");
assert_eq!(res.beneficiary, expected_beneficiary);
assert_eq!(res.transferred, expected_balance);
}