Struct sp_state_machine::TestExternalities

[+] Show declaration

pub struct TestExternalities<H: Hasher, N: ChangesTrieBlockNumber = u64> where
    H::Out: Codec + Ord,  { /* fields omitted */ }

[−] Expand description

Simple HashMap-based Externalities impl.

Implementations

impl<H: Hasher, N: ChangesTrieBlockNumber> TestExternalities<H, N> where
    H::Out: Ord + 'static + Codec, [−]

pub fn ext(&mut self) -> Ext<'_, H, N, InMemoryBackend<H>>[−]

Get externalities implementation.

pub fn new(storage: Storage) -> Self[−]

Create a new instance of TestExternalities with storage.

pub fn new_empty() -> Self[−]

New empty test externalities.

pub fn new_with_code(code: &[u8], storage: Storage) -> Self[−]

Create a new instance of TestExternalities with code and storage.

pub fn persist_offchain_overlay(&mut self)[−]

Move offchain changes from overlay to the persistent store.

pub fn offchain_db(&self) -> TestPersistentOffchainDB[−]

A shared reference type around the offchain worker storage.

pub fn insert(&mut self, k: StorageKey, v: StorageValue)[−]

Insert key/value into backend

pub fn register_extension<E: Any + Extension>(&mut self, ext: E)[−]

Registers the given extension for this instance.

pub fn changes_trie_storage(&mut self) -> &mut ChangesTrieInMemoryStorage<H, N>[−]

Get mutable reference to changes trie storage.

pub fn commit_all(&self) -> InMemoryBackend<H>[−]

Return a new backend with all pending value.

pub fn execute_with<R>(&mut self, execute: impl FnOnce() -> R) -> R[−]

Execute the given closure while self is set as externalities.

Returns the result of the given closure.

Trait Implementations

impl<H: Hasher, N: ChangesTrieBlockNumber> Debug for TestExternalities<H, N> where
    H::Out: Ord + Codec, [+]

[+] Show hidden undocumented items

fn fmt(&self, f: &mut Formatter<'_>) -> Result[−]

Formats the value using the given formatter.

impl<H: Hasher, N: ChangesTrieBlockNumber> Default for TestExternalities<H, N> where
    H::Out: Ord + 'static + Codec, [+]

[+] Show hidden undocumented items

fn default() -> Self[−]

Returns the "default value" for a type.

impl<H, N> ExtensionStore for TestExternalities<H, N> where
    H: Hasher,
    H::Out: Ord + Codec,
    N: ChangesTrieBlockNumber, [+]

[+] Show hidden undocumented items

fn extension_by_type_id(&mut self, type_id: TypeId) -> Option<&mut dyn Any>[−]

Tries to find a registered extension by the given type_id and returns it as a &mut dyn Any.

fn register_extension_with_type_id(
    &mut self,
    type_id: TypeId,
    extension: Box<dyn Extension>
) -> Result<(), Error>[−]

Register extension extension with speciifed type_id.

fn deregister_extension_by_type_id(
    &mut self,
    type_id: TypeId
) -> Result<(), Error>[−]

Deregister extension with speicifed 'type_id' and drop it.

impl<H: Hasher, N: ChangesTrieBlockNumber> From<Storage> for TestExternalities<H, N> where
    H::Out: Ord + 'static + Codec, [+]

[+] Show hidden undocumented items

fn from(storage: Storage) -> Self[−]

Performs the conversion.

impl<H: Hasher, N: ChangesTrieBlockNumber> PartialEq<TestExternalities<H, N>> for TestExternalities<H, N> where
    H::Out: Ord + 'static + Codec, [+]

[+] Show hidden undocumented items

fn eq(&self, other: &TestExternalities<H, N>) -> bool[−]

This doesn't test if they are in the same state, only if they contains the same data at this state

[+] Expand attributes

#[must_use]fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.