diff --git a/tests/src/test/scala/cats/tests/EitherTTests.scala b/tests/src/test/scala/cats/tests/EitherTTests.scala
index 9f344cc2e5d..d4df6a55106 100644
--- a/tests/src/test/scala/cats/tests/EitherTTests.scala
+++ b/tests/src/test/scala/cats/tests/EitherTTests.scala
@@ -119,6 +119,24 @@ class EitherTTests extends CatsSuite {
     }
   }
 
+  test("toNested") {
+    forAll { (eithert: EitherT[List, String, Int]) =>
+      eithert.toNested.map(_.toEither) should === (eithert.value)
+    }
+  }
+
+  test("toNestedValidated") {
+    forAll { (eithert: EitherT[List, String, Int]) =>
+      eithert.toNestedValidated.map(_.toValidated) should === (eithert.value)
+    }
+  }
+
+  test("toNestedValidatedNel") {
+    forAll { (eithert: EitherT[List, String, Int]) =>
+      eithert.toNestedValidatedNel.map(_.toValidatedNel) should === (eithert.value)
+    }
+  }
+
   test("withValidated") {
     forAll { (eithert: EitherT[List, String, Int], f: String => Char, g: Int => Double) =>
       eithert.withValidated(_.bimap(f, g)) should === (eithert.bimap(f, g))