Macro assertables::assert_set_joint

macro_rules! assert_set_joint {
    ($a:expr, $b:expr $(,)?) => { ... };
    ($a:expr, $b:expr, $($message:tt)+) => { ... };
}

Assert a set is joint with another.

• If true, return ().

• Otherwise, call panic! with a message and the values of the expressions with their debug representations.

Examples

// Return Ok
let a = [1, 2];
let b = [2, 3];
assert_set_joint!(&a, &b);
//-> ()

// Panic with error message
let result = panic::catch_unwind(|| {
let a = [1, 2];
let b = [3, 4];
assert_set_joint!(&a, &b);
//-> panic!
});
assert!(result.is_err());
let actual = result.unwrap_err().downcast::<String>().unwrap().to_string();
let expect = concat!(
    "assertion failed: `assert_set_joint!(left_set, right_set)`\n",
    "  left_set label: `&a`,\n",
    "  left_set debug: `[1, 2]`,\n",
    " right_set label: `&b`,\n",
    " right_set debug: `[3, 4]`,\n",
    "            left: `{1, 2}`,\n",
    "           right: `{3, 4}`"
);
assert_eq!(actual, expect);

This implementation uses [BTreeSet] to count items and sort them.

Related

• assert_set_joint
• assert_set_joint_as_result
• debug_assert_set_joint