https://github.com/killercup/assert_tokens_eq

Like Rust's built-in assert_eq macro, but for token streams. Passes them through rustfmt, and shows a pretty diff
https://github.com/killercup/assert_tokens_eq

macros rust testing

Last synced: 11 days ago
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Like Rust's built-in assert_eq macro, but for token streams. Passes them through rustfmt, and shows a pretty diff

• Host: GitHub
• URL: https://github.com/killercup/assert_tokens_eq
• Owner: killercup
• License: apache-2.0
• Created: 2019-07-30T20:11:57.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2023-07-11T17:23:36.000Z (over 1 year ago)
• Last Synced: 2024-10-12T03:25:01.135Z (27 days ago)
• Topics: macros, rust, testing
• Language: Rust
• Homepage: http://docs.rs/assert_tokens_eq
• Size: 51.8 KB
• Stars: 14
• Watchers: 4
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-APACHE

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README

        
# assert_tokens_eq

Like Rust's built-in `assert_eq` macro, but for token streams.

Passes them through rustfmt,

and shows a pretty diff

(powered by [pretty_assertions]).

[pretty_assertions]: https://crates.io/crates/pretty_assertions

## How it works

You write:

```rust

let got = something_that_generates_rust_code();

let expected = quote! {

    #[no_mangle]

    extern "C" fn foo(

        input: *const ::libc::c_char,

        input_len: ::libc::size_t,

        input3: *const ::libc::c_int,

        input3_len: ::libc::size_t,

    ) {

        fn foo(input: Arc, input2: Arc) {}

        unimplemented!()

    }

};

assert_tokens_eq!(got, expected);

```

and you get:

![](./screenshot.png)

## License

Licensed under either of

 * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)

 * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)

at your option.

### Contribution

Unless you explicitly state otherwise, any contribution intentionally

submitted for inclusion in the work by you, as defined in the Apache-2.0

license, shall be dual licensed as above, without any additional terms or

conditions.