Refactor null assertions in RSS tests for clarity and consistency

Author: a-gubskiy

tests/X.Web.RSS.Tests/RSSTests.cs

@@ -3,6 +3,7 @@
 using System.Globalization;
 using System.IO;
 using System.Net;
+using System.Net.Http;
 using System.Text;
 using System.Threading.Tasks;
 using X.Web.RSS.Enumerators;
@@ -62,11 +63,8 @@ public async Task Test()
     {
         var serializer = new RssDocumentSerializer();
 
-        var request = WebRequest.Create("https://feeds.bbci.co.uk/news/world/rss.xml");
-        var response = await request.GetResponseAsync();
-        var stream = response.GetResponseStream();
-        var streamReader = new StreamReader(stream);
-        var xml = await streamReader.ReadToEndAsync();
+        using var http = new HttpClient();
+        var xml = await http.GetStringAsync("https://feeds.bbci.co.uk/news/world/rss.xml");
 
         var rss = serializer.Deserialize(xml);
 

tests/X.Web.RSS.Tests/Validators/RssDateTest.cs

@@ -184,7 +184,7 @@ public void SetString_Null_DateNull()
         rssDate.DateString = null;
 
         // Assert
-        Assert.Equal(null, rssDate.Date);
+        Assert.Null(rssDate.Date);
     }
 
     [Fact]

tests/X.Web.RSS.Tests/Validators/RssTtlTest.cs

@@ -136,6 +136,6 @@ public void SetTtl_Zero_StringNull()
         rssTtl.TTL = 0;
 
         // Assert
-        Assert.Equal(null, rssTtl.TTL);
+        Assert.Null(rssTtl.TTL);
     }
 }

tests/X.Web.RSS.Tests/Validators/RssUrlTest.cs

@@ -98,7 +98,7 @@ public void SetString_Null_UriNull()
         rssUrl.Url = null;
 
         // Assert
-        Assert.Equal(null, rssUrl.Url);
+        Assert.Null(rssUrl.Url);
     }
 
     [Fact]
@@ -111,7 +111,7 @@ public void SetUri_Null_StringNull()
         rssUrl.Url = null;
 
         // Assert
-        Assert.Equal(null, rssUrl.Url);
+        Assert.Null(rssUrl.Url);
     }
 
     [Fact]

tests/X.Web.RSS.Tests/X.Web.RSS.Tests.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <LangVersion>default</LangVersion>
+    <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>