Added test case for #62

Author: niemyjski

Source/Tests/Plugins/PluginTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Linq;
+using System.Threading.Tasks;
 using Exceptionless.Dependency;
 using Exceptionless.Plugins;
 using Exceptionless.Plugins.Default;
@@ -52,6 +53,20 @@ public void EnvironmentInfo_IncorrectEventType(string eventType) {
             Assert.Equal(0, context.Event.Data.Count);
         }
 
+        [Fact]
+        public void EnvironmentInfo_CanRunInParallel() {
+            var client = new ExceptionlessClient();
+            var ev = new Event { Type = Event.KnownTypes.SessionStart };
+            var plugin = new EnvironmentInfoPlugin();
+
+            Parallel.For(0, 10000, i => {
+                var context = new EventPluginContext(client, ev);
+                plugin.Run(context);
+                Assert.Equal(1, context.Event.Data.Count);
+                Assert.NotNull(context.Event.Data[Event.KnownDataKeys.EnvironmentInfo]);
+            });
+        }
+
         [Fact]
         public void EnvironmentInfo_ShouldAddSessionStart() {
             var client = new ExceptionlessClient();