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internal/Calculator.UIAutomationLibrary/Components/Pages/DateCalculatorLfm.cs

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+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+namespace Calculator.UIAutomationLibrary.Components
+{
+    public class DateCalculatorLfm
+    {
+        public DateCalculatorLfm(DateCalculatorPom dateCalculatorPom)
+        {
+            this.ObjectModel = dateCalculatorPom;
+        }
+
+        public DateCalculatorPom ObjectModel { get; }
+
+        public void EnsureDateDifferenceMode()
+        {
+            this.OpenModeSelector();
+            this.ObjectModel.ModeSelector.AllItems[0].Select();
+        }
+
+        public void EnsureAddSubtractMode()
+        {
+            this.OpenModeSelector();
+            this.ObjectModel.ModeSelector.AllItems[1].Select();
+        }
+
+        private void OpenModeSelector()
+        {
+            using (var waiter = this.ObjectModel.ModeSelector.GetExpandedWaiter())
+            {
+                this.ObjectModel.ModeSelector.Expand();
+                waiter.TryWait();
+            }
+        }
+    }
+}