Assert a container is a match for an expression.
Pseudocode: a.contains(b)
use assertables::*; // String contains substring let a: &str = "alfa"; let b: &str = "lf"; assert_contains!(a, b); // Range contains value let a = 1..5; let b = 2; assert_contains!(a, &b);
assert_contains
assert_contains_as_result
debug_assert_contains