tests: yet another lib heuristic unit test

This one should have been the first one.

Author: knocte

tests/FSharpLint.Core.Tests/Rules/Smells/NoAsyncRunSynchronouslyInLibrary.fs

@@ -135,6 +135,13 @@ let Foo() =
 [<TestFixture>]
 type TestNoAsyncRunSynchronouslyInLibraryHeuristic() =
 
+    [<Test>]
+    member this.``Unlikely to be library if contains "tests" in name``() =
+        Assert.AreEqual(
+            LibraryHeuristicResultByProjectName.Unlikely,
+            howLikelyProjectIsLibrary "IntegrationTests"
+        )
+
     [<Test>]
     member this.``Unlikely to be library if contains "test" in name``() =
         Assert.AreEqual(