diff --git a/src/VisualStudio/IntegrationTest/IntegrationTests/AbstractEditorTest.cs b/src/VisualStudio/IntegrationTest/IntegrationTests/AbstractEditorTest.cs
index f95a535f64b758f45e82641fcbe1a7c93490da6a..c35225ae608050bbe8b891ec1ae5b46c4e61f75f 100644
--- a/src/VisualStudio/IntegrationTest/IntegrationTests/AbstractEditorTest.cs
+++ b/src/VisualStudio/IntegrationTest/IntegrationTests/AbstractEditorTest.cs
@@ -68,6 +68,8 @@ protected void SetUpEditor(string markupCode)
         {
             MarkupTestFile.GetPosition(markupCode, out string code, out int caretPosition);
 
+            VisualStudio.Editor.DismissCompletionSessions();
+
             var originalValue = VisualStudio.Workspace.IsPrettyListingOn(LanguageName);
 
             VisualStudio.Workspace.SetPrettyListing(LanguageName, false);
diff --git a/src/VisualStudio/IntegrationTest/TestUtilities/InProcess/TextViewWindow_InProc.cs b/src/VisualStudio/IntegrationTest/TestUtilities/InProcess/TextViewWindow_InProc.cs
index 02b920b85c118d8399515d1175735e67ceb635c3..918c16370b6e602f39d78f4314c6370eb69e11ed 100644
--- a/src/VisualStudio/IntegrationTest/TestUtilities/InProcess/TextViewWindow_InProc.cs
+++ b/src/VisualStudio/IntegrationTest/TestUtilities/InProcess/TextViewWindow_InProc.cs
@@ -487,6 +487,13 @@ public void DismissLightBulbSession()
                 broker.DismissSession(view);
             });
 
+        public void DismissCompletionSessions()
+            => ExecuteOnActiveView(view =>
+            {
+                var broker = GetComponentModel().GetService<ICompletionBroker>();
+                broker.DismissAllSessions(view);
+            });
+
         protected abstract bool HasActiveTextView();
 
         protected abstract IWpfTextView GetActiveTextView();
diff --git a/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/Editor_OutOfProc.cs b/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/Editor_OutOfProc.cs
index 5fcd85318f8393e94afecd44cb261680e967b816..ddea1064fea7d964b8c9313982eb1d330f3f1434 100644
--- a/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/Editor_OutOfProc.cs
+++ b/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/Editor_OutOfProc.cs
@@ -14,6 +14,7 @@
 using Microsoft.VisualStudio.IntegrationTest.Utilities.InProcess;
 using Microsoft.VisualStudio.IntegrationTest.Utilities.Input;
 using UIAutomationClient;
+using Xunit;
 
 namespace Microsoft.VisualStudio.IntegrationTest.Utilities.OutOfProcess
 {
@@ -233,7 +234,10 @@ public bool IsUseSuggestionModeOn()
             => _editorInProc.IsUseSuggestionModeOn();
 
         public void SetUseSuggestionMode(bool value)
-            => _editorInProc.SetUseSuggestionMode(value);
+        {
+            Assert.False(IsCompletionActive());
+            _editorInProc.SetUseSuggestionMode(value);
+        }
 
         public void WaitForActiveView(string viewName)
             => _editorInProc.WaitForActiveView(viewName);
diff --git a/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/TextViewWindow_OutOfProc.cs b/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/TextViewWindow_OutOfProc.cs
index a89f88e20250ba4a06c774b0ee0105f91b9e7bbb..c92bef4aaca6974072e89409de0bbc23a2447426 100644
--- a/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/TextViewWindow_OutOfProc.cs
+++ b/src/VisualStudio/IntegrationTest/TestUtilities/OutOfProcess/TextViewWindow_OutOfProc.cs
@@ -77,6 +77,12 @@ public bool IsLightBulbSessionExpanded()
         public void DismissLightBulbSession()
             => _textViewWindowInProc.DismissLightBulbSession();
 
+        public void DismissCompletionSessions()
+        {
+            WaitForCompletionSet();
+            _textViewWindowInProc.DismissCompletionSessions();
+        }
+
         public string[] GetLightBulbActions()
             => _textViewWindowInProc.GetLightBulbActions();