1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136


//! # Usage
//! Add ```must``` to your Cargo.toml file.
//!
//! ```ignore
//! [dev-dependencies]
//! must = "0.1.*"
//! ```
//!
//! And add
//!
//! ```ignore
//! #[cfg_attr(test, macro_use)]
//! #[cfg(test)]
//! extern crate must;
//! ```
//!
//! to your [root module][].
//!
//! Then add
//!
//! ```ignore
//! use must::prelude::*;
//! ```
//!
//! your test module.
//!
//! # Examples
//!
//! ```rust
//! #[macro_use] extern crate must;
//! use must::prelude::*;
//! # fn main() {
//! // fail!() is optional, and if not called, it will panic on drop.
//! // but as it's value is not used, it will be dropped right after one assertion chain.
//!
//!
//! Some(5u8).must_be_some_and(|val| {
//!     // fail! macro supports formatting, but value is printed without manually printing it.
//!     val.must_be(5).or(fail!("your msg {}", "and args"));
//! }).or(fail!());
//! // fail!() macro captures location, so you can know source of panic without backtrace.
//!
//!
//! fn double(x: usize) -> usize {
//!     x * 2
//! }
//!
//! 10.must_be_in_range(10..);
//! 10.must_not_be_in_range(..10);
//! double(10).must_be_in_range(..);
//! double(10).must_not_be_in_range(..20);
//! # }
//! ```
//!
//!
//!
//!
//! [root module]:https://doc.rust-lang.org/book/crates-and-modules.html




pub mod result;
pub mod marker;
pub mod prelude;
pub mod error_renderer;
pub mod matcher;

///
///
/// fail!() - Just capture source location.
///
/// fail!("") - Add message.
///
/// fail!("{:?}", var) - Add message.
///
#[macro_export]
macro_rules! fail {
    () => {{
        fn fail_with_src(err: &$crate::result::Error) {
            let src = $crate::error_renderer::Source {
                filename: file!(),
                line: line!(),
                column: column!(),
            };

            let renderer = &$crate::error_renderer::ErrRenderer {
			    err: err,
			    src: Some(src),
                msg: None,
		    };
            panic!("{}", renderer);
        }

        fail_with_src
    }};

     ($fmt:expr) => {{
        let f = |ref err: &$crate::result::Error| {
            let src = $crate::error_renderer::Source {
                filename: file!(),
                line: line!(),
                column: column!(),
            };

            let renderer = &$crate::error_renderer::ErrRenderer {
			    err: err,
			    src: Some(src),
                msg: Some(format!($fmt)),
		    };
            panic!("{}", renderer);
        };

        f
    }};

    ($fmt:expr, $($arg:tt)*) => {{
        let f = |ref err: &$crate::result::Error| {
            let src = $crate::error_renderer::Source {
                filename: file!(),
                line: line!(),
                column: column!(),
            };

            let renderer = &$crate::error_renderer::ErrRenderer {
			    err: err,
			    src: Some(src),
                msg: Some(format!($fmt, $($arg)* )),
		    };
            panic!("{}", renderer);
        };

        f
    }};
}