diff --git a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Append.Tests.fs b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Append.Tests.fs
index 32010192..eec1fe99 100644
--- a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Append.Tests.fs
+++ b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Append.Tests.fs
@@ -95,6 +95,7 @@ module SideEffects =
 
     [<Theory; ClassData(typeof<TestImmTaskSeq>)>]
     let ``TaskSeq-appendSeq consumes whole sequence once incl after-effects`` variant =
+        // TODO use variant
         let mutable i = 0
 
         let ts = taskSeq {
@@ -110,6 +111,7 @@ module SideEffects =
 
     [<Theory; ClassData(typeof<TestImmTaskSeq>)>]
     let ``TaskSeq-prependSeq consumes whole sequence once incl after-effects`` variant =
+        // TODO use variant
         let mutable i = 0
 
         taskSeq {
diff --git a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Except.Tests.fs b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Except.Tests.fs
index db49b2c0..5df3da4b 100644
--- a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Except.Tests.fs
+++ b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Except.Tests.fs
@@ -52,6 +52,7 @@ module EmptySeq =
 
     [<Theory; ClassData(typeof<TestEmptyVariants>)>]
     let ``TaskSeq-except no side effect in exclude seq if source seq is empty`` variant =
+        // TODO use variant
         let mutable i = 0
 
         let exclude = taskSeq {
@@ -98,6 +99,7 @@ module Immutable =
 
     [<Theory; ClassData(typeof<TestImmTaskSeq>)>]
     let ``TaskSeq-exceptOfSeq removes duplicates`` variant =
+        // TODO use variant
         TaskSeq.ofList [ 1; 1; 2; 3; 4; 12; 12; 12; 13; 13; 13; 13; 13; 99 ]
         |> TaskSeq.exceptOfSeq [ 1..10 ]
         |> TaskSeq.toArrayAsync
diff --git a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Pick.Tests.fs b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Pick.Tests.fs
index e03c236b..7ba4b361 100644
--- a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Pick.Tests.fs
+++ b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Pick.Tests.fs
@@ -128,6 +128,7 @@ module Immutable =
 
     [<Theory; ClassData(typeof<TestImmTaskSeq>)>]
     let ``TaskSeq-pick happy path first item of seq`` variant = task {
+        // TODO use variant
         let! first =
             Gen.sideEffectTaskSeqMicro 50L<µs> 1000L<µs> 50
             |> TaskSeq.pick (fun x -> if x = 1 then Some $"first{x}" else None) // dummy tasks seq starts at 1
diff --git a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Realworld.fs b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Realworld.fs
index f7c8594f..2860f3b0 100644
--- a/src/FSharp.Control.TaskSeq.Test/TaskSeq.Realworld.fs
+++ b/src/FSharp.Control.TaskSeq.Test/TaskSeq.Realworld.fs
@@ -44,8 +44,6 @@ type AsyncBufferedReader(output: ITestOutputHelper, data, blockSize) =
                 let! bytesRead = buffered.ReadAsync(mem, 0, mem.Length) // offset refers to offset in target buffer, not source
                 lastPos <- buffered.Position
 
-                let x: seq<Guid> = seq { 1 } |> Seq.cast
-
                 if bytesRead > 0 then
                     current <- ValueSome mem
                     return true
@@ -102,20 +100,9 @@ type ``Real world tests``(output: ITestOutputHelper) =
 
     [<Fact(Skip = "Broken test, faulty streaming test-implementation")>]
     let ``Reading a 10MB buffered IAsync stream from start to finish`` () = task {
-        let mutable count = 0
         use reader = AsyncBufferedReader(output, Array.init 2048 byte, 256)
         let expected = Array.init 256 byte
 
-        let ts = taskSeq {
-            for data in reader do
-                do count <- count + 1
-
-                if count > 40960 then
-                    failwith "Too far!!!!!!" // ensuring we don't end up in an endless loop
-
-                yield data
-        }
-
         // the following is extremely slow, which is why we just use F#'s comparison instead
         // Using this takes 67s, compared to 0.25s using normal F# comparison.
         // reader |> TaskSeq.toArray |> should equal expected // VERY SLOW!!
diff --git a/src/FSharp.Control.TaskSeq.Test/TaskSeq.ToXXX.Tests.fs b/src/FSharp.Control.TaskSeq.Test/TaskSeq.ToXXX.Tests.fs
index 082fe98d..306dcbde 100644
--- a/src/FSharp.Control.TaskSeq.Test/TaskSeq.ToXXX.Tests.fs
+++ b/src/FSharp.Control.TaskSeq.Test/TaskSeq.ToXXX.Tests.fs
@@ -138,6 +138,7 @@ module SideEffects =
 
     [<Theory; ClassData(typeof<TestSideEffectTaskSeq>)>]
     let ``TaskSeq-toListAsync should execute side effects multiple times`` variant = task {
+        // TODO use variant
         let tq = Gen.sideEffectTaskSeq 10
         let! (results1: list<_>) = tq |> TaskSeq.toListAsync
         let! (results2: list<_>) = tq |> TaskSeq.toListAsync