Use different formatter for different currency (#1432)

* Use different formatter for different currency

* Add functional tests for currency fraction digit format

* Revert "Add functional tests for currency fraction digit format"

This reverts commit bd8aab33847425f4dcfd0d76ce310c918729b2fd.

* Add TestCurrencyFormattingLogic in UnitConverterViewModelUnitTests

* Fix InitializeMultipleConverterTest

* Add comment for a line of code

* Add default case for switch in ConvertToLocalizedString

* Remove trailing decimal
Disable decimal input if maxFractionDigits is 0
Fix input may be blocked after switched active

* Fix: UpdateIsDecimalEnabled should do nothing for non-currency converter

* Remove unnecessary SetValue method

* Add a comment

* Add functional UI Tests for currency converter
Reset currency before tests
Fix: input is blocked after switching to currency with less fractional digits

* Set Priority=0 for currency format related tests

* Truncate digits in display value after switcing
To fix incorrect result after switching currency with less fractional digits

src/CalculatorUITestFramework/CalculatorApp.cs

@@ -35,6 +35,14 @@ namespace CalculatorUITestFramework
             AppName.Click();
         }
 
+        /// <summary>
+        /// Click the window (to lose focus on components)
+        /// </summary>
+        public static void ClickOnWindow()
+        {
+            Window.Click();
+        }
+
         /// <summary>
         /// If the the Dock Panel for the History and Memory lists is not displayed, resize the window
         /// Two attempts are made, the the lable is not found a "not found" exception is thrown

src/CalculatorUITestFramework/UnitConverterOperatorsPanel.cs

@@ -13,5 +13,7 @@ namespace CalculatorUITestFramework
         public NumberPad NumberPad = new NumberPad();
         public WindowsElement ClearButton => this.session.TryFindElementByAccessibilityId("ClearEntryButtonPos0");
         public WindowsElement BackSpaceButton => this.session.TryFindElementByAccessibilityId("BackSpaceButtonSmall");
+        public WindowsElement Units1 => this.session.TryFindElementByAccessibilityId("Units1");
+        public WindowsElement Units2 => this.session.TryFindElementByAccessibilityId("Units2");
     }
 }

src/CalculatorUITestFramework/UnitConverterPage.cs

@@ -64,5 +64,44 @@ namespace CalculatorUITestFramework
             }
         }
 
+        /// <summary>
+        /// Ensure Units1 and Units2 are the same 
+        /// </summary>
+        public void EnsureSameUnitsAreSelected()
+        {
+            CalculatorApp.ClickOnWindow();
+            UnitConverterOperators.Units1.SendKeys(OpenQA.Selenium.Keys.Home);
+            UnitConverterOperators.Units1.SendKeys(OpenQA.Selenium.Keys.Enter);
+
+            CalculatorApp.ClickOnWindow();
+            UnitConverterOperators.Units2.SendKeys(OpenQA.Selenium.Keys.Home);
+            UnitConverterOperators.Units2.SendKeys(OpenQA.Selenium.Keys.Enter);
+
+            CalculatorApp.ClickOnWindow();
+        }
+
+        /// <summary>
+        /// Select value in Units1 ComboBox
+        /// </summary>
+        /// <param name="value">Value in ComboBox Units1</param>
+        public void SelectUnits1(string value)
+        {
+            CalculatorApp.ClickOnWindow();
+            UnitConverterOperators.Units1.SendKeys(value);
+            UnitConverterOperators.Units1.SendKeys(OpenQA.Selenium.Keys.Enter);
+            CalculatorApp.ClickOnWindow();
+        }
+
+        /// <summary>
+        /// Select value in Units2 ComboBox
+        /// </summary>
+        /// <param name="value">Value in ComboBox Units2</param>
+        public void SelectUnits2(string value)
+        {
+            CalculatorApp.ClickOnWindow();
+            UnitConverterOperators.Units2.SendKeys(value);
+            UnitConverterOperators.Units2.SendKeys(OpenQA.Selenium.Keys.Enter);
+            CalculatorApp.ClickOnWindow();
+        }
     }
 }