♻️🧪Use CultureScope in tests to revert CurrentCulture changes

Use `CultureScope` instead of try-catch, simpler syntax.
Add `CultureScope` to some test cases that previously did not revert their changes to CurrentCulture, to avoid flaky tests.

# Conflicts:
#	CodeGen/Generators/UnitsNetGen/UnitTestBaseClassGenerator.cs
#	UnitsNet.Tests/Helpers/CultureScope.cs

Author: angularsen

CodeGen/Generators/UnitsNetGen/UnitTestBaseClassGenerator.cs

@@ -822,20 +822,13 @@ public void BaseDimensionsShouldNeverBeNull()
         [Fact]
         public void ToString_ReturnsValueAndUnitAbbreviationInCurrentCulture()
         {{
-            var prevCulture = Thread.CurrentThread.CurrentCulture;
-            Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(""en-US"");
-            try {{");
+            using var _ = new CultureScope(""en-US"");");
             foreach (var unit in _quantity.Units)
             {
                 Writer.WL($@"
-                Assert.Equal(""1{GetEnglishAbbreviation(unit)}"", new {_quantity.Name}(1, {GetUnitFullName(unit)}).ToString());");
+            Assert.Equal(""1{GetEnglishAbbreviation(unit)}"", new {_quantity.Name}(1, {GetUnitFullName(unit)}).ToString());");
             }
             Writer.WL($@"
-            }}
-            finally
-            {{
-                Thread.CurrentThread.CurrentCulture = prevCulture;
-            }}
         }}
 
         [Fact]
@@ -855,19 +848,11 @@ public void ToString_WithSwedishCulture_ReturnsUnitAbbreviationForEnglishCulture
         [Fact]
         public void ToString_SFormat_FormatsNumberWithGivenDigitsAfterRadixForCurrentCulture()
         {{
-            var oldCulture = CultureInfo.CurrentCulture;
-            try
-            {{
-                CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
-                Assert.Equal(""0.1{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s1""));
-                Assert.Equal(""0.12{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s2""));
-                Assert.Equal(""0.123{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s3""));
-                Assert.Equal(""0.1235{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s4""));
-            }}
-            finally
-            {{
-                CultureInfo.CurrentCulture = oldCulture;
-            }}
+            var _ = new CultureScope(CultureInfo.InvariantCulture);
+            Assert.Equal(""0.1{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s1""));
+            Assert.Equal(""0.12{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s2""));
+            Assert.Equal(""0.123{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s3""));
+            Assert.Equal(""0.1235{_baseUnitEnglishAbbreviation}"", new {_quantity.Name}(0.123456, {_baseUnitFullName}).ToString(""s4""));
         }}
 
         [Fact]

README.md

@@ -98,7 +98,7 @@ var oneKg = Mass.FromKilograms(1);
 
 // ToString() uses CurrentCulture for abbreviation language number formatting. This is consistent with the behavior of the .NET Framework,
 // where DateTime.ToString() uses CurrentCulture for the whole string, likely because mixing an english date format with a russian month name might be confusing.
-Thread.CurrentThread.CurrentCulture = russian;
+CultureInfo.CurrentCulture = russian;
 string kgRu = oneKg.ToString(); // "1 кг"
 
 // ToString() with specific culture and custom string format pattern
@@ -362,7 +362,7 @@ double convertedValue = UnitConverter.Convert(
 ### Example: WPF app using IValueConverter to parse input
 
 Src: [Samples/MvvmSample.Wpf](https://github.com/angularsen/UnitsNet/tree/master/Samples/MvvmSample.Wpf)
-                             
+
 ![wpfmvvmsample_219w](https://user-images.githubusercontent.com/787816/34913417-094332e2-f8fd-11e7-9d8a-92db105fbbc9.png)
 
 The purpose of this app is to show how to create an `IValueConverter` in order to bind XAML to quantities.

UnitsNet.Tests/CustomCode/StonePoundsTests.cs

@@ -2,6 +2,7 @@
 // Copyright 2013 Andreas Gullberg Larsen (andreas.larsen84@gmail.com). Maintained at https://github.com/angularsen/UnitsNet.
 
 using System.Globalization;
+using UnitsNet.Tests.Helpers;
 using Xunit;
 
 namespace UnitsNet.Tests
@@ -33,7 +34,7 @@ public void StonePoundsRoundTrip()
         [Fact]
         public void StonePoundsToString_FormatsNumberInCurrentCulture()
         {
-            CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("en-US");
+            using var _ = new CultureScope("en-US");
             StonePounds stonePounds = Mass.FromStonePounds(3500, 1).StonePounds;
 
             Assert.Equal("3,500 st 1 lb", stonePounds.ToString());