From 882caaf77b845a57b9c01444cd07ec5c5e7567f8 Mon Sep 17 00:00:00 2001
From: Cyrus Najmabadi <cyrus.najmabadi@gmail.com>
Date: Sun, 29 Mar 2020 19:12:18 -0700
Subject: [PATCH] Add test

---
 .../RemoveUnnecessaryCastTests.cs               | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/Analyzers/CSharp/Tests/RemoveUnnecessaryCast/RemoveUnnecessaryCastTests.cs b/src/Analyzers/CSharp/Tests/RemoveUnnecessaryCast/RemoveUnnecessaryCastTests.cs
index 0fda4e81f01..d7234195fcb 100644
--- a/src/Analyzers/CSharp/Tests/RemoveUnnecessaryCast/RemoveUnnecessaryCastTests.cs
+++ b/src/Analyzers/CSharp/Tests/RemoveUnnecessaryCast/RemoveUnnecessaryCastTests.cs
@@ -5128,6 +5128,23 @@ private void goo()
 }");
         }
 
+        [WorkItem(36631, "https://github.com/dotnet/roslyn/issues/36631")]
+        [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsRemoveUnnecessaryCast)]
+        public async Task TestFormattableString7()
+        {
+            await TestMissingInRegularAndScriptAsync(
+            @"
+using System;
+
+class C
+{
+    private void goo()
+    {
+        object x = [|(IFormattable)$@""""|];
+    }
+}");
+        }
+
         [WorkItem(34326, "https://github.com/dotnet/roslyn/issues/34326")]
         [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsRemoveUnnecessaryCast)]
         public async Task TestMissingOnInterfaceCallOnNonSealedClass()
-- 
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