Struct ExpectFile

pub struct ExpectFile { /* private fields */ }

Self-updating file.

ExpectFile::assert_eq updates the file when the UPDATE_EXPECT environment variable is set.

Implementations

impl ExpectFile

pub fn assert_eq(&self, actual: &[u8])

Checks whether file’s contents are equal to actual.

When the UPDATE_EXPECT environment variable is set, the file is updated or created with the data from actual.

Panics

Will panic when the file’s contents don’t equal actual and UPDATE_EXPECT is not set or if writing to stdout or updating the file fails.

Trait Implementations

impl Debug for ExpectFile

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

Formats the value using the given formatter.