Struct Diff

pub struct Diff {
    expected: Option<String>,
    expected_name: Option<String>,
    expected_file: Option<PathBuf>,
    actual: Option<String>,
    actual_name: Option<String>,
    normalizers: Vec<(String, String)>,
    drop_bomb: DropBomb,
}

Fields

expected: Option<String>

expected_name: Option<String>

expected_file: Option<PathBuf>

actual: Option<String>

actual_name: Option<String>

normalizers: Vec<(String, String)>

drop_bomb: DropBomb

Implementations

impl Diff

pub fn new() -> Self

Construct a bare diff invocation.

pub fn expected_file<P: AsRef<Path>>(&mut self, path: P) -> &mut Self

Specify the expected output for the diff from a file.

pub fn expected_text<T: AsRef<[u8]>>( &mut self, name: &str, text: T, ) -> &mut Self

Specify the expected output for the diff from a given text string.

pub fn actual_file<P: AsRef<Path>>(&mut self, path: P) -> &mut Self

Specify the actual output for the diff from a file.

pub fn actual_text<T: AsRef<[u8]>>(&mut self, name: &str, text: T) -> &mut Self

Specify the actual output for the diff from a given text string.

pub fn normalize<R: Into<String>, I: Into<String>>( &mut self, regex: R, replacement: I, ) -> &mut Self

Specify a regex that should replace text in the “actual” text that will be compared.

fn run_common(&self) -> (&str, &str, String, String)

pub fn run(&mut self)

pub fn run_fail(&mut self)

fn maybe_bless_expected_file(&self, actual: &str) -> bool

If we have an expected file to write into, and RUSTC_BLESS_TEST is set, then write the actual output into the file and return true.

We assume that RUSTC_BLESS_TEST contains the path to the original test’s source directory. That lets us bless the original snapshot file in the source tree, not the copy in rmake_out that we would normally use.

Trait Implementations

impl Debug for Diff

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 200 bytes