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bb24b4938f
* change from build_runner to dart2js * add internalBootstrapBrowserTest to some of the tests * add internalBootstrapBrowserTest to all remaining tests * make tests build in paralel. Total time dropped from 586 to 177 seconds for 8 core MacBook * change isolates with pool * fixing analysis errors * skipping canvaskit tests for ios-safari * copy image files to the build directory * adding internalBootstrapBrowserTest to newly added tests * add internalBootstrapBrowserTest to faling path iterator test * necessary changes to make chrome windows work * in windows test in chrome instead of edge. our edge code was for legacy edge * do not run golden unit tests on Windows LUCI bots for now * addressing reviewer comments. Adding a method for deciding when to run integration tests. * remove lines that I forgot to remove * fixing analysis error. add issue for todo * add bootstap to a test file * adding bootstrap to another test * add internalBootstrapBrowserTest to a golden test * return test result in bat file. use archieve package to unzip * fixing logs for chrome_installer * use archieve and archieve entity instead of dynamic * adding comments for windows platform archieve part * addressing reviewer comments * change readme file
94 lines
3.8 KiB
Dart
94 lines
3.8 KiB
Dart
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:typed_data';
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import 'package:test/bootstrap/browser.dart';
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import 'package:test/test.dart';
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import 'package:ui/src/engine.dart';
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void main() {
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internalBootstrapBrowserTest(() => testMain);
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}
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void testMain() {
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group('Float Int conversions', (){
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test('Should convert signbit to 2\'s compliment', () {
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expect(signBitTo2sCompliment(0), 0);
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expect(signBitTo2sCompliment(0x7fffffff).toUnsigned(32), 0x7fffffff);
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expect(signBitTo2sCompliment(0x80000000), 0);
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expect(signBitTo2sCompliment(0x8f000000).toUnsigned(32), 0xf1000000);
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expect(signBitTo2sCompliment(0x8fffffff).toUnsigned(32), 0xf0000001);
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expect(signBitTo2sCompliment(0xffffffff).toUnsigned(32), 0x80000001);
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expect(signBitTo2sCompliment(0x8f000000), -251658240);
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expect(signBitTo2sCompliment(0x8fffffff), -268435455);
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expect(signBitTo2sCompliment(0xffffffff), -2147483647);
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});
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test('Should convert 2s compliment to signbit', () {
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expect(twosComplimentToSignBit(0), 0);
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expect(twosComplimentToSignBit(0x7fffffff), 0x7fffffff);
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expect(twosComplimentToSignBit(0), 0);
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expect(twosComplimentToSignBit(0xf1000000).toRadixString(16), 0x8f000000.toRadixString(16));
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expect(twosComplimentToSignBit(0xf0000001), 0x8fffffff);
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expect(twosComplimentToSignBit(0x80000001), 0xffffffff);
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expect(twosComplimentToSignBit(0x81234561), 0xfedcba9f);
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expect(twosComplimentToSignBit(-5), 0x80000005);
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});
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test('Should convert float to bits', () {
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Float32List floatList = Float32List(1);
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floatList[0] = 0;
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expect(float2Bits(floatList, 0), 0);
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floatList[0] = 0.1;
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expect(float2Bits(floatList, 0).toUnsigned(32).toRadixString(16), 0x3dcccccd.toRadixString(16));
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floatList[0] = 123456.0;
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expect(float2Bits(floatList, 0).toUnsigned(32).toRadixString(16), 0x47f12000.toRadixString(16));
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floatList[0] = -0.1;
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expect(float2Bits(floatList, 0).toUnsigned(32).toRadixString(16), 0xbdcccccd.toRadixString(16));
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floatList[0] = -123456.0;
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expect(float2Bits(floatList, 0).toUnsigned(32).toRadixString(16), 0xc7f12000.toRadixString(16));
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});
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});
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group('Comparison', () {
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test('Should compare equality based on ulps', () {
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// If number of floats between a=1.1 and b are below 16, equals should
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// return true.
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final double a = 1.1;
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int aBits = floatAs2sCompliment(a);
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double b = twosComplimentAsFloat(aBits + 1);
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expect(almostEqualUlps(a, b), true);
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b = twosComplimentAsFloat(aBits + 15);
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expect(almostEqualUlps(a, b), true);
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b = twosComplimentAsFloat(aBits + 16);
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expect(almostEqualUlps(a, b), false);
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// Test between variant of equalUlps.
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b = twosComplimentAsFloat(aBits + 1);
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expect(almostBequalUlps(a, b), true);
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b = twosComplimentAsFloat(aBits + 1);
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expect(almostBequalUlps(a, b), true);
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b = twosComplimentAsFloat(aBits + 2);
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expect(almostBequalUlps(a, b), false);
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});
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test('Should compare 2 coordinates based on ulps', () {
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double a = 1.1;
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int aBits = floatAs2sCompliment(a);
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double b = twosComplimentAsFloat(aBits + 1);
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expect(approximatelyEqual(5.0, a, 5.0, b), true);
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b = twosComplimentAsFloat(aBits + 16);
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expect(approximatelyEqual(5.0, a, 5.0, b), true);
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// Increase magnitude which should start checking with ulps rather than
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// fltEpsilon.
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a = 3000000.1;
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aBits = floatAs2sCompliment(a);
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b = twosComplimentAsFloat(aBits + 1);
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expect(approximatelyEqual(5.0, a, 5.0, b), true);
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b = twosComplimentAsFloat(aBits + 16);
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expect(approximatelyEqual(5.0, a, 5.0, b), false);
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});
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});
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}
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