Struct pallet_migrations::mock_helpers::MockedMigrations

pub struct MockedMigrations;

Allows to set the migrations to run at runtime instead of compile-time.

It achieves this by using the storage to store the migrations to run.

Implementations

impl MockedMigrations

pub fn set(migrations: Vec<(MockedMigrationKind, u32)>)

Set the migrations to run.

Trait Implementations

impl MockedMigrations for MockedMigrations

fn set_fail_after(steps: u32)

The migration should fail after n steps.

fn set_success_after(steps: u32)

The migration should succeed after n steps.

impl SteppedMigrations for MockedMigrations

fn len() -> u32

The number of migrations that Self aggregates.

fn nth_id(n: u32) -> Option<Vec<u8>>

The nth SteppedMigration::id.

fn nth_step( n: u32, cursor: Option<Vec<u8>>, _meter: &mut WeightMeter ) -> Option<Result<Option<Vec<u8>>, SteppedMigrationError>>

Do a SteppedMigration::step on the nth migration.

fn nth_transactional_step( n: u32, cursor: Option<Vec<u8>>, meter: &mut WeightMeter ) -> Option<Result<Option<Vec<u8>>, SteppedMigrationError>>

Do a SteppedMigration::transactional_step on the nth migration.

fn nth_max_steps(n: u32) -> Option<Option<u32>>

The SteppedMigration::max_steps of the nth migration.

fn cursor_max_encoded_len() -> usize

The maximal encoded length across all cursors.

fn identifier_max_encoded_len() -> usize

The maximal encoded length across all identifiers.

fn integrity_test() -> Result<(), &'static str>

Assert the integrity of the migrations.