Michael Handschuh
c7df4e9fb3
Adds static methods of the form Parse.<TypeName>(string str) that use CultureInfo.InvariantCulture. These are to be used when parsing strings. It's still safe (from the CA1304/CA1305 perspective) to use the ToDecimal extension method for decimals. Adds string extension methods for common operations that will now require CultureInfo.InvariantCulture. These are to be used when converting values to strings, such as ToStringInvariant()/ToStringInvariant(format), but also useful for searching within strings, StartsWithInvariant, EndsWithInvariant and IndexOfInvariant.
104 lines
3.7 KiB
C#
104 lines
3.7 KiB
C#
/*
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* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
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* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Globalization;
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using NUnit.Framework;
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namespace QuantConnect.Tests.Common
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{
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[TestFixture]
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public class ParseTests
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{
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[Test]
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public void DoubleIsTheSameAs_DoubleDotParse_WithInvariantCulture()
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{
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var str = "1,123.45608";
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var expected = double.Parse(str, CultureInfo.InvariantCulture);
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var actual = Parse.Double(str);
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Assert.IsInstanceOf<double>(actual);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void DecimalIsTheSameAs_DecimalDotParse_WithInvariantCulture()
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{
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var str = "1,123.45608";
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var expected = decimal.Parse(str, CultureInfo.InvariantCulture);
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var actual = Parse.Decimal(str);
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Assert.IsInstanceOf<decimal>(actual);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void DecimalSupports_NumberStyles()
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{
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var str = "1e-3";
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var expected = 0.001m;
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var actual = Parse.Decimal(str, NumberStyles.AllowExponent);
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Assert.IsInstanceOf<decimal>(expected);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void LongIsTheSameAs_LongDotParse_WithInvariantCulture()
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{
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var str = "1123";
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var expected = long.Parse(str, CultureInfo.InvariantCulture);
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var actual = Parse.Long(str);
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Assert.IsInstanceOf<long>(actual);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void IntIsTheSameAs_IntDotParse_WithInvariantCulture()
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{
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var str = "1123";
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var expected = int.Parse(str, CultureInfo.InvariantCulture);
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var actual = Parse.Int(str);
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Assert.IsInstanceOf<int>(actual);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void DateTimeIsTheSameAs_DateTimeDotParse_WithInvariantCulture()
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{
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var str = "7/29/2019";
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var expected = DateTime.Parse(str, CultureInfo.InvariantCulture);
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var actual = Parse.DateTime(str);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void DateTimeWithFormat_IsTheSameAs_DateTimeDotParse_WithFormatAndInvariantCulture()
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{
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var str = "07+29+2019";
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var format = "MM+dd+2019";
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var expected = DateTime.ParseExact(str, format, CultureInfo.InvariantCulture);
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var actual = Parse.DateTimeExact(str, format);
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Assert.AreEqual(expected, actual);
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}
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[Test]
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public void DateTimeExact_IsTheSameAs_DateTimeDotParseExact_WithFormatAndInvariantCulture()
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{
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var str = "07/29-2019Q14.22";
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var format = "MM/dd-yyyyQHH.mm";
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var expected = DateTime.ParseExact(str, format, CultureInfo.InvariantCulture);
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var actual = Parse.DateTimeExact(str, format);
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Assert.AreEqual(expected, actual);
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}
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}
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} |