Struct substrate_test_client::TestClientBuilder

pub struct TestClientBuilder<Block: BlockT, Executor, Backend, G: GenesisInit> { /* fields omitted */ }

A builder for creating a test client instance.

Implementations

impl<Block: BlockT, Executor, G: GenesisInit> TestClientBuilder<Block, Executor, Backend<Block>, G>

pub fn with_default_backend() -> Self

Create new TestClientBuilder with default backend.

pub fn with_pruning_window(keep_blocks: u32) -> Self

Create new TestClientBuilder with default backend and pruning window size

pub fn with_tx_storage(keep_blocks: u32) -> Self

Create new TestClientBuilder with default backend and storage chain mode

impl<Block: BlockT, Executor, Backend, G: GenesisInit> TestClientBuilder<Block, Executor, Backend, G>

pub fn with_backend(backend: Arc<Backend>) -> Self

Create a new instance of the test client builder.

pub fn set_keystore(self, keystore: SyncCryptoStorePtr) -> Self

Set the keystore that should be used by the externalities.

pub fn genesis_init_mut(&mut self) -> &mut G

Alter the genesis storage parameters.

pub fn backend(&self) -> Arc<Backend>

Give access to the underlying backend of these clients

pub fn add_child_storage(
    self,
    child_info: &ChildInfo,
    key: impl AsRef<[u8]>,
    value: impl AsRef<[u8]>
) -> Self

Extend child storage

pub fn set_execution_strategy(
    self,
    execution_strategy: ExecutionStrategy
) -> Self

Set the execution strategy that should be used by all contexts.

pub fn set_block_rules(
    self,
    fork_blocks: ForkBlocks<Block>,
    bad_blocks: BadBlocks<Block>
) -> Self

Sets custom block rules.

pub fn enable_offchain_indexing_api(self) -> Self

Enable the offchain indexing api.

pub fn set_no_genesis(self) -> Self

Disable writing genesis.

pub fn build_with_executor<RuntimeApi>(
    self,
    executor: Executor
) -> (Client<Backend, Executor, Block, RuntimeApi>, LongestChain<Backend, Block>) where
    Executor: CallExecutor<Block> + 'static,
    Backend: Backend<Block>,
    <Backend as Backend<Block>>::OffchainStorage: 'static, 

Build the test client with the given native executor.

impl<Block: BlockT, E, Backend, G: GenesisInit> TestClientBuilder<Block, LocalCallExecutor<Block, Backend, NativeExecutor<E>>, Backend, G>

pub fn build_with_native_executor<RuntimeApi, I>(
    self,
    executor: I
) -> (Client<Backend, LocalCallExecutor<Block, Backend, NativeExecutor<E>>, Block, RuntimeApi>, LongestChain<Backend, Block>) where
    I: Into<Option<NativeExecutor<E>>>,
    E: NativeExecutionDispatch + 'static,
    Backend: Backend<Block> + 'static, 

Build the test client with the given native executor.

Trait Implementations

impl<Block: BlockT, Executor, G: GenesisInit> Default for TestClientBuilder<Block, Executor, Backend<Block>, G>

fn default() -> Self

Returns the “default value” for a type.