Macro test_util::assert_near
source ยท macro_rules! assert_near { ($x: expr, $y: expr, $delta: expr) => { ... }; }
Expand description
Asserts that x
and y
are within delta
of one another.
x
and y
must be of a common type that supports both subtraction and negation. (Note that it
would be natural to define this macro using abs()
, but when attempting to do so, the compiler
fails to apply its inference rule for under-constrained types. See
[https://github.com/rust-lang/reference/issues/104].)