tests: sanity test for issue #290

src/FluentAssertions.Analyzers.Tests/Tips/SanityTests.cs

@@ -448,5 +448,51 @@ public class MyCollectionType { }";
                 })
             );
         }
+
+        [TestMethod]
+        [Implemented(Reason = "https://github.com/fluentassertions/fluentassertions.analyzers/issues/290")]
+        public void ShouldNotReportIssue290()
+        {
+            const string source = @"
+using FluentAssertions;
+using FluentAssertions.Extensions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+public class TestClass
+{
+    public static void Main()
+    {
+        IEnumerable<string> expectedOrderedNames = new[] { ""Alpha"", ""Bravo"", ""Charlie"" };
+        IEnumerable<Item> actual = GetSortedItems();
+
+        actual.Select(x => x.Name).Should().Equal(expectedOrderedNames);
+    }
+
+    static IEnumerable<Item> GetSortedItems() {
+        yield return new Item(""Bravo"", Guid.NewGuid());
+        yield return new Item(""Charlie"", Guid.NewGuid());
+        yield return new Item(""Alpha"", Guid.NewGuid());
+    }
+}
+
+public class Item
+{
+    public string Name { get; set; }
+    public Guid Id { get; set; }
+
+    public Item(string name, Guid id)
+    {
+        Name = name;
+        Id = id;
+    }
+}";
+
+            DiagnosticVerifier.VerifyDiagnostic(new DiagnosticVerifierArguments()
+                .WithSources(source)
+                .WithAllAnalyzers()
+                .WithPackageReferences(PackageReference.FluentAssertions_6_12_0)
+            );
+        }
     }
 }