aves/test/utils/math_utils_test.dart
2023-08-16 22:29:52 +02:00

35 lines
1.1 KiB
Dart

import 'dart:ui';
import 'package:aves/utils/math_utils.dart';
import 'package:test/test.dart';
void main() {
test('highest power of 2 that is smaller than or equal to the number', () {
expect(highestPowerOf2(1024), 1024);
expect(highestPowerOf2(42), 32);
expect(highestPowerOf2(0), 0);
expect(highestPowerOf2(-42), 0);
expect(highestPowerOf2(.5), 0);
expect(highestPowerOf2(1.5), 1);
});
test('smallest power of 2 that is larger than or equal to the number', () {
expect(smallestPowerOf2(1024), 1024);
expect(smallestPowerOf2(42), 64);
expect(smallestPowerOf2(0), 1);
expect(smallestPowerOf2(-42), 1);
expect(smallestPowerOf2(.5), 1);
expect(smallestPowerOf2(1.5), 2);
});
test('rounding to a given precision after the decimal', () {
expect(roundToPrecision(1.2345678, decimals: 3), 1.235);
expect(roundToPrecision(0, decimals: 3), 0);
});
test('segment intersection', () {
const s1 = (Offset(1, 1), Offset(3, 2));
const s2 = (Offset(1, 4), Offset(2, -1));
expect(segmentIntersection(s1, s2), const Offset(17 / 11, 14 / 11));
});
}