Add CultureInfo.InvariantCulture to floating point number formatting (kubernetes-client#1541)

* Add CultureInfo.InvariantCulture to floating point number formatting

* Remove unused using statement in KubernetesYamlTests.cs

Author: tg123

src/KubernetesClient/FloatEmitter.cs

@@ -1,3 +1,4 @@
+using System.Globalization;
 using YamlDotNet.Core;
 using YamlDotNet.Core.Events;
 using YamlDotNet.Serialization;
@@ -18,10 +19,10 @@ public override void Emit(ScalarEventInfo eventInfo, IEmitter emitter)
             {
                 // Floating point numbers should always render at least one zero (e.g. 1.0f => '1.0' not '1')
                 case double d:
-                    emitter.Emit(new Scalar(d.ToString("0.0######################")));
+                    emitter.Emit(new Scalar(d.ToString("0.0######################", CultureInfo.InvariantCulture)));
                     break;
                 case float f:
-                    emitter.Emit(new Scalar(f.ToString("0.0######################")));
+                    emitter.Emit(new Scalar(f.ToString("0.0######################", CultureInfo.InvariantCulture)));
                     break;
                 default:
                     base.Emit(eventInfo, emitter);

tests/KubernetesClient.Tests/KubernetesYamlTests.cs

@@ -1,6 +1,7 @@
 using k8s.Models;
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Text;
 using System.Threading.Tasks;
@@ -1095,5 +1096,21 @@ public void LoadFromStringCRDMerge()
             Assert.Equal("v1beta2", crd.Spec.Versions[0].Name);
             Assert.Equal("v1", crd.Spec.Versions[1].Name);
         }
+
+        [Fact]
+        public void NoGlobalization()
+        {
+            var old = CultureInfo.CurrentCulture;
+            try
+            {
+                CultureInfo.CurrentCulture = CultureInfo.CreateSpecificCulture("fr-fr");
+                var yaml = KubernetesYaml.Serialize(new Dictionary<string, double>() { ["hello"] = 10.01 });
+                Assert.Equal("hello: 10.01", yaml);
+            }
+            finally
+            {
+                CultureInfo.CurrentCulture = old;
+            }
+        }
     }
 }