diff --git a/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DiagramsSpec.scala b/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DiagramsSpec.scala
index 643ac93f69..b1953901bd 100644
--- a/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DiagramsSpec.scala
+++ b/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DiagramsSpec.scala
@@ -23,9 +23,11 @@ import org.scalatest.exceptions.TestFailedException
 import org.scalatest.funspec.AnyFunSpec
 import org.scalatest.matchers.should.Matchers
 
+// SKIP-SCALATESTJS,NATIVE-START
 import scala.concurrent.ExecutionContext.Implicits.global
 import scala.concurrent.duration.{Duration, SECONDS}
 import scala.concurrent.{Await, Future}
+// SKIP-SCALATESTJS,NATIVE-END
 
 class DiagramsSpec extends AnyFunSpec with Matchers with Diagrams {
 
diff --git a/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DirectDiagrammedAssertionsSpec.scala b/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DirectDiagrammedAssertionsSpec.scala
index 060d2ea6ef..526e875f1b 100644
--- a/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DirectDiagrammedAssertionsSpec.scala
+++ b/jvm/diagrams-test/src/test/scala/org/scalatest/diagrams/DirectDiagrammedAssertionsSpec.scala
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/*package org.scalatest.diagrams
+package org.scalatest.diagrams
 
 import org.scalatest.SharedHelpers.thisLineNumber
 import java.util.Date
@@ -22,6 +22,12 @@ import org.scalatest.exceptions.TestCanceledException
 import org.scalatest.exceptions.TestFailedException
 import org.scalatest.funspec.AnyFunSpec
 
+// SKIP-SCALATESTJS,NATIVE-START
+import scala.concurrent.ExecutionContext.Implicits.global
+import scala.concurrent.duration.{Duration, SECONDS}
+import scala.concurrent.{Await, Future}
+// SKIP-SCALATESTJS,NATIVE-END
+
 class DirectDiagrammedAssertionsSpec extends AnyFunSpec with org.scalatest.matchers.should.Matchers {
 
   val fileName: String = "DirectDiagrammedAssertionsSpec.scala"
@@ -2584,6 +2590,15 @@ class DirectDiagrammedAssertionsSpec extends AnyFunSpec with org.scalatest.match
             |org.scalatest.diagrams.Diagrams.assert(java.math.BigInteger.ZERO == java.math.BigInteger.ZERO)
           """.stripMargin)
       }
+
+      // scala js and native does not support Await.result
+      // SKIP-SCALATESTJS,NATIVE-START
+      it("should invoke future one time only") {
+        var count = 0
+        org.scalatest.diagrams.Diagrams.assert(Await.result(Future { count = count + 1; 42 }, Duration(1, SECONDS)) == 42)
+        count shouldBe 1
+      }
+      // SKIP-SCALATESTJS,NATIVE-END
     }
 
     describe("The org.scalatest.diagrams.Diagrams.assert(boolean, clue) method") {
@@ -5042,6 +5057,15 @@ class DirectDiagrammedAssertionsSpec extends AnyFunSpec with org.scalatest.match
             |org.scalatest.diagrams.Diagrams.assert(java.math.BigDecimal.ZERO == java.math.BigDecimal.ZERO, "this is a clue")
           """.stripMargin)
       }
+
+      // scala js and native does not support Await.result
+      // SKIP-SCALATESTJS,NATIVE-START
+      it("should invoke future one time only") {
+        var count = 0
+        org.scalatest.diagrams.Diagrams.assert(Await.result(Future { count = count + 1; 42 }, Duration(1, SECONDS)) == 42, "this is a clue")
+        count shouldBe 1
+      }
+      // SKIP-SCALATESTJS,NATIVE-END
     }
 
     describe("The org.scalatest.diagrams.Diagrams.assume(boolean) method") {
@@ -7500,6 +7524,15 @@ class DirectDiagrammedAssertionsSpec extends AnyFunSpec with org.scalatest.match
             |org.scalatest.diagrams.Diagrams.assume(java.math.BigDecimal.ZERO == java.math.BigDecimal.ZERO)
           """.stripMargin)
       }
+
+      // scala js and native does not support Await.result
+      // SKIP-SCALATESTJS,NATIVE-START
+      it("should invoke future one time only") {
+        var count = 0
+        org.scalatest.diagrams.Diagrams.assume(Await.result(Future { count = count + 1; 42 }, Duration(1, SECONDS)) == 42)
+        count shouldBe 1
+      }
+      // SKIP-SCALATESTJS,NATIVE-END
     }
 
     describe("The org.scalatest.diagrams.Diagrams.assume(boolean, clue) method") {
@@ -9958,9 +9991,18 @@ class DirectDiagrammedAssertionsSpec extends AnyFunSpec with org.scalatest.match
             |org.scalatest.diagrams.Diagrams.assume(java.math.BigDecimal.ZERO == java.math.BigDecimal.ZERO, "this is a clue")
           """.stripMargin)
       }
+
+      // scala js and native does not support Await.result
+      // SKIP-SCALATESTJS,NATIVE-START
+      it("should invoke future one time only") {
+        var count = 0
+        org.scalatest.diagrams.Diagrams.assume(Await.result(Future { count = count + 1; 42 }, Duration(1, SECONDS)) == 42, "this is a clue")
+        count shouldBe 1
+      }
+      // SKIP-SCALATESTJS,NATIVE-END
     }
 
   }
 
-}*/
+}