Added AsyncTestSpec.executeAfterDelay

Author: viktor-podzigun

test-dom/src/main/scala/scommons/react/test/dom/AsyncTestSpec.scala

@@ -78,4 +78,18 @@ trait AsyncTestSpec extends AsyncFlatSpec
 
     promise.future
   }
+
+  def executeAfterDelay(millis: Int)(block: => Assertion): Future[Assertion] = {
+    val promise = Promise[Assertion]()
+
+    dom.window.setTimeout({ () =>
+      try {
+        promise.success(block)
+      } catch {
+        case NonFatal(ex) => promise.failure(ex)
+      }
+    }, millis.toDouble)
+
+    promise.future
+  }
 }

test-dom/src/test/scala/scommons/react/test/dom/AsyncTestSpecTest.scala

@@ -26,10 +26,40 @@ class AsyncTestSpecTest extends AsyncTestSpec {
     //given
     val value = 5
 
+    //when
+    val resultF = eventually {
+      value shouldBe 1
+    }
+    
+    //then
+    resultF.failed.map { result =>
+      result.getMessage should include ("5 was not equal to 1")
+    }
+  }
+
+  it should "run successfully after delay when executeAfterDelay" in {
+    //given
+    val delay = 500
+    val value = 5
+
     //when & then
-    eventually {
+    executeAfterDelay(delay) {
+      value shouldBe 5
+    }
+  }
+
+  it should "fail if not succeeded after delay when executeAfterDelay" in {
+    //given
+    val delay = 500
+    val value = 5
+
+    //when
+    val resultF = executeAfterDelay(delay) {
       value shouldBe 1
-    }.failed.map { result =>
+    }
+    
+    //then
+    resultF.failed.map { result =>
       result.getMessage should include ("5 was not equal to 1")
     }
   }