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pub use predicates;
pub use predicates_tree;
#[macro_export]
macro_rules! assert_that {
($value:expr, $pred:expr $(,)?) => {{
use $crate::predicates::prelude::*;
use $crate::predicates_tree::CaseTreeExt;
use predicate::*;
if let Some(case) = $pred.find_case(false, $value) {
panic!("{}", case.tree());
};
}};
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_success() {
assert_that!(&(), always());
assert_that!(&(), never().not());
assert_that!(&(2 + 2), eq(4));
}
#[test]
fn test_accept_trailing_comma() {
assert_that!(
"Always have a needle in your haystack",
str::contains("needle"),
);
}
#[test]
#[should_panic(expected = "(var == 5 && var > 3)\n└── var == 5\n")]
fn test_failure_shows_tree() {
assert_that!(&(2 + 2), eq(5).and(gt(3)))
}
}