Struct ckb_testtool::context::Context

pub struct Context {
    pub cells: HashMap<OutPoint, (CellOutput, Bytes)>,
    pub transaction_infos: HashMap<OutPoint, TransactionInfo>,
    pub headers: HashMap<Byte32, HeaderView>,
    pub epoches: HashMap<Byte32, EpochExt>,
    pub cells_by_data_hash: HashMap<Byte32, OutPoint>,
    // some fields omitted
}

Verification Context

Fields

cells: HashMap<OutPoint, (CellOutput, Bytes)>

transaction_infos: HashMap<OutPoint, TransactionInfo>

headers: HashMap<Byte32, HeaderView>

epoches: HashMap<Byte32, EpochExt>

cells_by_data_hash: HashMap<Byte32, OutPoint>

Implementations

impl Context

pub fn deploy_contract(&mut self, data: Bytes) -> OutPoint

👎 Deprecated since 0.1.1:

Please use the deploy_cell function instead

pub fn deploy_cell(&mut self, data: Bytes) -> OutPoint

Deploy a cell return the out-point of the cell

pub fn insert_header(&mut self, header: HeaderView)

Insert a block header into context

pub fn link_cell_with_block(
    &mut self,
    out_point: OutPoint,
    block_hash: Byte32,
    tx_index: usize
)

Link a cell with a block to make the load_header_by_cell syscalls works

pub fn get_contract_out_point(&self, data_hash: &Byte32) -> Option<OutPoint>

👎 Deprecated since 0.1.1:

Please use the get_cell_by_data_hash function instead

pub fn get_cell_by_data_hash(&self, data_hash: &Byte32) -> Option<OutPoint>

Get the out-point of a cell by data_hash the cell must has deployed to this context

pub fn create_cell(&mut self, cell: CellOutput, data: Bytes) -> OutPoint

Create a cell with data return the out-point

pub fn create_cell_with_out_point(
    &mut self,
    out_point: OutPoint,
    cell: CellOutput,
    data: Bytes
)

Create cell with specified out-point and cell data

pub fn insert_cell(
    &mut self,
    out_point: OutPoint,
    cell: CellOutput,
    data: Bytes
)

👎 Deprecated since 0.1.1:

Please use the create_cell_with_out_point function instead

pub fn get_cell(&self, out_point: &OutPoint) -> Option<(CellOutput, Bytes)>

Get cell output and data by out-point

pub fn build_script(
    &mut self,
    out_point: &OutPoint,
    args: Bytes
) -> Option<Script>

Build script with out_point and args return none if the out-point is not exist

pub fn complete_tx(&mut self, tx: TransactionView) -> TransactionView

Complete cell deps for a transaction this function searches context cells; generate cell dep for referenced scripts.

pub fn capture_debug(&self) -> bool

pub fn set_capture_debug(&mut self, capture_debug: bool)

Capture debug output, default value is false

pub fn captured_messages(&self) -> Vec<Message>

return captured messages

pub fn verify_tx(
    &self,
    tx: &TransactionView,
    max_cycles: u64
) -> Result<Cycle, CKBError>

Verify the transaction in CKB-VM

Trait Implementations

impl CellDataProvider for Context

fn load_cell_data(&self, cell: &CellMeta) -> Option<Bytes>

load cell_data from memory, fallback to storage access

fn get_cell_data(&self, out_point: &OutPoint) -> Option<Bytes>

fetch cell_data from storage

fn get_cell_data_hash(&self, out_point: &OutPoint) -> Option<Byte32>

fetch cell_data_hash from storage

fn load_cell_data_hash(&self, cell: &CellMeta) -> Option<Byte32>

load cell_data_hash from memory, fallback to storage access

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl HeaderProvider for Context

fn get_header(&self, block_hash: &Byte32) -> Option<HeaderView>

TODO(doc): @quake

fn timestamp_and_parent(&self, block_hash: &Byte32) -> (u64, u64, Byte32)

Return timestamp and block_number of the corresponding block_hash, and hash of parent block

fn block_median_time(
    &self,
    block_hash: &Byte32,
    median_block_count: usize
) -> u64

Return past block median time, including the timestamp of the given one