Trait TestHeader 

pub trait TestHeader: BlockHeader {
    // Required methods
    fn set_parent_hash(&mut self, hash: FixedBytes<32>);
    fn set_block_number(&mut self, number: u64);
    fn set_timestamp(&mut self, timestamp: u64);
    fn set_state_root(&mut self, state_root: FixedBytes<32>);
    fn set_difficulty(&mut self, difficulty: Uint<256, 4>);

    // Provided method
    fn set_number(&mut self, number: u64) { ... }
}

Available on crate feature node-api and (crate features arbitrary or test-utils) only.

A helper trait for Headers that allows for mutable access to the headers values.

This allows for modifying the header for testing and mocking purposes.

Required Methods

fn set_parent_hash(&mut self, hash: FixedBytes<32>)

Updates the parent block hash.

fn set_block_number(&mut self, number: u64)

Updates the block number.

fn set_timestamp(&mut self, timestamp: u64)

Updates the block’s timestamp.

fn set_state_root(&mut self, state_root: FixedBytes<32>)

Updates the block state root.

fn set_difficulty(&mut self, difficulty: Uint<256, 4>)

Updates the block difficulty.

Provided Methods

fn set_number(&mut self, number: u64)

Updates the block number (alias for CLI compatibility).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl HeaderMut for Header