Struct TXErrorAssertions 

pub struct TXErrorAssertions { /* private fields */ }

Provides assertion methods for failed transactions.

This struct wraps a transaction error and provides helper methods for asserting specific error conditions in tests.

Implementations

impl TXErrorAssertions

pub fn with_anchor_error(&self, error_name: &str) -> Result<()>

Asserts that the transaction failed with a specific Anchor error.

This uses string matching to find the error in the transaction logs, looking for the last program log containing the string “AnchorError” and matching the error name.

pub fn with_error(&self, error_name: &str) -> Result<()>

Asserts that the transaction failed with a specific error message.

This method checks the transaction logs for an error message containing the specified error name and error code.

pub fn with_custom_error(&self, error_code: u32) -> Result<()>

Asserts that the transaction failed with a specific custom error code.

This is useful for checking SPL Token errors and other program-specific error codes.

pub fn with_program_error<T: Into<ProgramError>>(&self, err: T) -> Result<()>

Asserts that the transaction failed with a specific program error.

pub fn error(&self) -> &TXError

Returns the underlying transaction error for custom assertions.