mirror of
https://github.com/flame-engine/flame.git
synced 2025-11-15 12:19:40 +08:00
af45ea6cc4
Added matcher closeToVector to help test equality of vectors. This matcher
follows standard Flutter convention for writing tests as expect(value, matcher);
provides meaningful description of the mismatch in case the test fails.
Also: fixed the name of the fails_assert_test, which wasn't running automatically because the file name did not end with _test.
43 lines
1.4 KiB
Dart
43 lines
1.4 KiB
Dart
import 'package:flame_test/src/close_to_vector.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:vector_math/vector_math_64.dart';
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void main() {
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group('closeToVector', () {
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test('matches normally', () {
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expect(Vector2.zero(), closeToVector(0, 0));
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expect(Vector2(-14, 99), closeToVector(-14, 99));
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expect(Vector2(1e-20, -1e-16), closeToVector(0, 0));
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expect(Vector2(1.0001, 2.0), closeToVector(1, 2, epsilon: 0.01));
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expect(Vector2(13, 14), closeToVector(10, 10, epsilon: 5));
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});
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test('fails on type mismatch', () {
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try {
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expect(3.14, closeToVector(0, 0));
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} on TestFailure catch (e) {
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expect(
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e.message,
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contains('Expected: a Vector2 object within 1e-15 of (0.0, 0.0)'),
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);
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expect(e.message, contains('Actual: <3.14>'));
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expect(e.message, contains('Which: is not an instance of Vector2'));
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}
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});
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test('fails on value mismatch', () {
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try {
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expect(Vector2(101, 217), closeToVector(100, 220));
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} on TestFailure catch (e) {
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expect(
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e.message,
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contains('Expected: a Vector2 object within 1e-15 of (100.0, 220.0)'),
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);
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expect(e.message, contains('Actual: Vector2:<[101.0,217.0]>'));
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expect(e.message, contains('Which: is at distance 3.16227766'));
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}
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});
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});
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}
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