| // Copyright (c) 2015, Google Inc. Please see the AUTHORS file for details. |
| // All rights reserved. Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| import 'dart:typed_data'; |
| |
| import 'package:test/test.dart'; |
| |
| import 'package:vector_math/vector_math.dart'; |
| import 'package:vector_math/vector_math_lists.dart'; |
| |
| import 'test_utils.dart'; |
| |
| void testVector4ListWithOffset() { |
| final list = Vector4List(12, 1); |
| list[0] = Vector4(1.0, 2.0, 3.0, 4.0); |
| relativeTest(list[0].x, 1.0); |
| relativeTest(list[0].y, 2.0); |
| relativeTest(list[0].z, 3.0); |
| relativeTest(list[0].w, 4.0); |
| relativeTest(list.buffer[0], 0.0); // unset |
| relativeTest(list.buffer[1], 1.0); |
| relativeTest(list.buffer[2], 2.0); |
| relativeTest(list.buffer[3], 3.0); |
| relativeTest(list.buffer[4], 4.0); |
| relativeTest(list.buffer[5], 0.0); // unset |
| } |
| |
| void testVector4ListView() { |
| final buffer = Float32List(12); |
| final list = Vector4List.view(buffer, 1, 5); |
| // The list length should be (12 - 1) ~/ 5 == 2. |
| expect(list.length, 2); |
| list[0] = Vector4(1.0, 2.0, 3.0, 4.0); |
| list[1] = Vector4(5.0, 6.0, 7.0, 8.0); |
| expect(buffer[0], 0.0); |
| expect(buffer[1], 1.0); |
| expect(buffer[2], 2.0); |
| expect(buffer[3], 3.0); |
| expect(buffer[4], 4.0); |
| expect(buffer[5], 0.0); |
| expect(buffer[6], 5.0); |
| expect(buffer[7], 6.0); |
| expect(buffer[8], 7.0); |
| expect(buffer[9], 8.0); |
| expect(buffer[10], 0.0); |
| expect(buffer[11], 0.0); |
| } |
| |
| void testVector4ListViewTightFit() { |
| final buffer = Float32List(12); |
| final list = Vector4List.view(buffer, 2, 5); |
| // The list length should be (12 - 2) ~/ 5 == 2 as the stride of the last |
| // element is negligible. |
| expect(list.length, 2); |
| list[0] = Vector4(1.0, 2.0, 3.0, 4.0); |
| list[1] = Vector4(5.0, 6.0, 7.0, 8.0); |
| expect(buffer[0], 0.0); |
| expect(buffer[1], 0.0); |
| expect(buffer[2], 1.0); |
| expect(buffer[3], 2.0); |
| expect(buffer[4], 3.0); |
| expect(buffer[5], 4.0); |
| expect(buffer[6], 0.0); |
| expect(buffer[7], 5.0); |
| expect(buffer[8], 6.0); |
| expect(buffer[9], 7.0); |
| expect(buffer[10], 8.0); |
| expect(buffer[11], 0.0); |
| } |
| |
| void testVector4ListFromList() { |
| final input = List<Vector4>(3); |
| input[0] = Vector4(1.0, 2.0, 3.0, 4.0); |
| input[1] = Vector4(5.0, 6.0, 7.0, 8.0); |
| input[2] = Vector4(9.0, 10.0, 11.0, 12.0); |
| final list = Vector4List.fromList(input, 2, 5); |
| expect(list.buffer.length, 17); |
| expect(list.buffer[0], 0.0); |
| expect(list.buffer[1], 0.0); |
| expect(list.buffer[2], 1.0); |
| expect(list.buffer[3], 2.0); |
| expect(list.buffer[4], 3.0); |
| expect(list.buffer[5], 4.0); |
| expect(list.buffer[6], 0.0); |
| expect(list.buffer[7], 5.0); |
| expect(list.buffer[8], 6.0); |
| expect(list.buffer[9], 7.0); |
| expect(list.buffer[10], 8.0); |
| expect(list.buffer[11], 0.0); |
| expect(list.buffer[12], 9.0); |
| expect(list.buffer[13], 10.0); |
| expect(list.buffer[14], 11.0); |
| expect(list.buffer[15], 12.0); |
| expect(list.buffer[16], 0.0); |
| } |
| |
| void testVector4ListSetValue() { |
| final list = Vector4List(2); |
| |
| list.setValues(1, 1.0, 2.0, 3.0, 4.0); |
| |
| expect(list.buffer[0], 0.0); |
| expect(list.buffer[1], 0.0); |
| expect(list.buffer[2], 0.0); |
| expect(list.buffer[3], 0.0); |
| expect(list.buffer[4], 1.0); |
| expect(list.buffer[5], 2.0); |
| expect(list.buffer[6], 3.0); |
| expect(list.buffer[7], 4.0); |
| } |
| |
| void testVector4ListSetZero() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.setZero(1); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 0.0); |
| expect(list.buffer[5], 0.0); |
| expect(list.buffer[6], 0.0); |
| expect(list.buffer[7], 0.0); |
| } |
| |
| void testVector4ListAdd() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.add(1, $v4(2.0, 2.0, 2.0, 2.0)); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 7.0); |
| expect(list.buffer[5], 8.0); |
| expect(list.buffer[6], 9.0); |
| expect(list.buffer[7], 10.0); |
| } |
| |
| void testVector4ListAddScaled() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.addScaled(1, $v4(2.0, 2.0, 2.0, 2.0), 2.0); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 9.0); |
| expect(list.buffer[5], 10.0); |
| expect(list.buffer[6], 11.0); |
| expect(list.buffer[7], 12.0); |
| } |
| |
| void testVector4ListSub() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.sub(1, $v4(2.0, 2.0, 2.0, 2.0)); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 3.0); |
| expect(list.buffer[5], 4.0); |
| expect(list.buffer[6], 5.0); |
| expect(list.buffer[7], 6.0); |
| } |
| |
| void testVector4ListMultiply() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.multiply(1, $v4(2.0, 3.0, 4.0, 5.0)); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 10.0); |
| expect(list.buffer[5], 18.0); |
| expect(list.buffer[6], 28.0); |
| expect(list.buffer[7], 40.0); |
| } |
| |
| void testVector4ListScale() { |
| final list = Vector4List.view( |
| Float32List.fromList([1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0])); |
| |
| list.scale(1, 2.0); |
| |
| expect(list.buffer[0], 1.0); |
| expect(list.buffer[1], 2.0); |
| expect(list.buffer[2], 3.0); |
| expect(list.buffer[3], 4.0); |
| expect(list.buffer[4], 10.0); |
| expect(list.buffer[5], 12.0); |
| expect(list.buffer[6], 14.0); |
| expect(list.buffer[7], 16.0); |
| } |
| |
| void main() { |
| group('Vector4List', () { |
| test('with offset', testVector4ListWithOffset); |
| test('view', testVector4ListView); |
| test('view tight fit', testVector4ListViewTightFit); |
| test('fromList', testVector4ListFromList); |
| test('setValue', testVector4ListSetValue); |
| test('setZero', testVector4ListSetZero); |
| test('add', testVector4ListAdd); |
| test('addScaled', testVector4ListAddScaled); |
| test('sub', testVector4ListSub); |
| test('multiply', testVector4ListMultiply); |
| test('scale', testVector4ListScale); |
| }); |
| } |