beCloseTo method
Asserts an numeric value is close to another value within a specified value.
delta
The maximum amount of which the two values may differ.
Implementation
NumericAssertions beCloseTo(num nearbyValue, {required num delta}) {
var diff = nearbyValue - subject!;
if (diff < 0) diff = -diff;
final isClose = diff <= delta;
if (isReversed) {
Execute.assertion.forCondition(isClose).failWith(
'$subjectLabel\n $subject\nshould not be close to\n $nearbyValue\nwith tolerance $delta\n but does.',
);
} else {
Execute.assertion.forCondition(!isClose).failWith(
'$subjectLabel\n $subject\nshould be close to\n $nearbyValue\nwith tolerance $delta\n but does not.',
);
}
return NumericAssertions(subject);
}