Struct cli_test_dir::TestDir

pub struct TestDir { /* fields omitted */ }

This code is inspired by the WorkDir pattern that BurntSushi uses to test CLI tools like ripgrep and xsv.

Methods

impl TestDir

fn new(bin_name: &str, test_name: &str) -> TestDir

Create a new TestDir for the current test. You must specify bin_name (the name of a binary built by the current crate) and test_name (a unique name for the current test).

If our output directory exists from a previous test run, it will be deleted.

fn cmd(&self) -> Command

Return a std::process::Command object that can be used to execute the binary.

fn src_path<P: AsRef<Path>>(&self, path: P) -> PathBuf

Return a path relative to the source directory of the current crate. Useful for finding fixtures.

fn create_file<P, S>(&self, path: P, contents: S) where P: AsRef<Path>, S: AsRef<[u8]>

Create a file in our test directory with the specified contents.

fn expect_path<P: AsRef<Path>>(&self, path: P)

If path does not point to valid path, fail the current test.

fn expect_file_contents<P, S>(&self, path: P, expected: S) where P: AsRef<Path>, S: AsRef<[u8]>

Verify that the file contains the specified data.

fn expect_contains<P>(&self, path: P, pattern: &str) where P: AsRef<Path>

Verify that the contents of the file match the specified pattern. Someday this should support std::str::pattern::Pattern so that we can support both strings and regular expressions, but that hasn't been stabilized yet.