Updated .gitignore and fixed compile errors

Author: kalintsenkov

.gitignore

@@ -22,6 +22,9 @@ bld/
 [Bb]in/
 [Oo]bj/
 
+# IntelliJ IDEA cache/options directory
+.idea/
+
 # Visual Studo 2015 cache/options directory
 .vs/
 

src/MyTested.AspNetCore.Mvc.Http/Builders/Http/HttpResponseTestBuilder.cs

@@ -430,7 +430,7 @@ private CookieOptions GetCookieOptions(SetCookieHeaderValue cookie)
 
         private void ValidateHeaderValues(string name, string expectedValue, StringValues headerValues)
         {
-            if (!headerValues.Contains(expectedValue) && string.Join(",", headerValues) != expectedValue)
+            if (!headerValues.Contains(expectedValue) && string.Join(",", headerValues.ToArray()) != expectedValue)
             {
                 this.ThrowNewHttpResponseAssertionException(
                     "headers",

test/MyTested.AspNetCore.Mvc.Test.Setups/MyTested.AspNetCore.Mvc.Test.Setups.csproj

@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
+    <NoWarn>$(NoWarn);ASP0026</NoWarn>
     <AssemblyName>MyTested.AspNetCore.Mvc.Test.Setups</AssemblyName>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <AssemblyOriginatorKeyFile>../../tools/Key.snk</AssemblyOriginatorKeyFile>