Add Calendar localization. (#1915)

* Add Calendar localization.

* Some minor code cleanup.

Co-authored-by: Kevin Bost <kitokeboo@gmail.com>

Author: bombipappoo

MaterialDesignThemes.Wpf.Tests/CalendarFormatInfoTests.cs

@@ -0,0 +1,130 @@
+using System.Globalization;
+using Xunit;
+
+namespace MaterialDesignThemes.Wpf.Tests
+{
+    public class CalendarFormatInfoTests
+    {
+        [StaTheory]
+        [InlineData("en-US", "MMMM yyyy", "yyyy", "ddd,", "MMM d")]
+        [InlineData("fr-CA", "MMMM, yyyy", "yyyy", "ddd", "d MMM")]
+        [InlineData("ja-JP", "yyyy'年'M'月'", "yyyy年", "M月d日", "dddd")]
+        public void TestFromCultureInfo(string cultureName, string yearMonth, string componentThree, string componentTwo, string componentOne)
+        {
+            var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+
+            Assert.Equal(yearMonth, result.YearMonthPattern);
+            Assert.Equal(componentOne, result.ComponentOnePattern);
+            Assert.Equal(componentTwo, result.ComponentTwoPattern);
+            Assert.Equal(componentThree, result.ComponentThreePattern);
+        }
+
+        [Theory]
+        [InlineData("", "ddd", "", true)]
+        [InlineData("ddd", "ddd", "", true)]
+        [InlineData("dddd", "ddd", "", true)]
+        [InlineData("dddd ", "ddd", "", true)]
+        [InlineData("dddd,", "ddd", ",", true)]
+        [InlineData("dddd ,", "ddd", ",", true)]
+        [InlineData("dddd','", "ddd", ",", true)]
+        [InlineData("dddd' , '", "ddd", ",", true)]
+        [InlineData("ddddd", "ddd", "", true)]
+        [InlineData("ddddd,", "ddd", "", true)]
+        [InlineData("Xddd", "ddd", "", false)]
+        [InlineData("Xdddd", "ddd", "", false)]
+        [InlineData("X ddd", "ddd", "", false)]
+        [InlineData("X dddd", "ddd", "", false)]
+        [InlineData("X, ddd", "ddd", ",", false)]
+        [InlineData("X,ddd", "ddd", ",", false)]
+        [InlineData("X','ddd", "ddd", ",", false)]
+        [InlineData("X' , 'ddd", "ddd", ",", false)]
+        [InlineData("Xddddd", "ddd", "", false)]
+        [InlineData("X,ddddd", "ddd", "", false)]
+        public void CanParseDayOfWeek(string s, string pattern, string separator, bool isFirst)
+        {
+            var result = CalendarFormatInfo.DayOfWeekStyle.Parse(s);
+
+            Assert.Equal(pattern, result.Pattern);
+            Assert.Equal(separator, result.Separator);
+            Assert.Equal(isFirst, result.IsFirst);
+        }
+
+        [StaFact]
+        public void SettingYearPattern()
+        {
+            const string cultureName = "en-001";
+            CalendarFormatInfo.SetYearPattern(cultureName, "A");
+            var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+            Assert.Equal("A", result.ComponentThreePattern);
+
+            CalendarFormatInfo.SetYearPattern(cultureName, null);
+            result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+            Assert.Equal("yyyy", result.ComponentThreePattern);
+        }
+
+        [StaFact]
+        public void SettingYearPatternOfMultupleCultures()
+        {
+            string[] cultureNames = { "en-001", "en-150" };
+            CalendarFormatInfo.SetYearPattern(cultureNames, "B");
+            foreach (var cultureName in cultureNames)
+            {
+                var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+                Assert.Equal("B", result.ComponentThreePattern);
+            }
+        }
+
+        [StaFact]
+        public void SettingDayOfWeekStyle()
+        {
+            const string cultureName = "en-001";
+            CalendarFormatInfo.SetDayOfWeekStyle(cultureName, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
+            var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+            Assert.Equal("d MMM", result.ComponentOnePattern);
+            Assert.Equal("Z@", result.ComponentTwoPattern);
+
+            CalendarFormatInfo.SetDayOfWeekStyle(cultureName, new CalendarFormatInfo.DayOfWeekStyle("Y", "@", false));
+            result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+            Assert.Equal("Y", result.ComponentOnePattern);
+            Assert.Equal("d MMM@", result.ComponentTwoPattern);
+        }
+
+        [StaFact]
+        public void SettingDayOfWeekStyleOfMultupleCultures()
+        {
+            string[] cultureNames = { "en-001", "en-150" };
+            CalendarFormatInfo.SetDayOfWeekStyle(cultureNames, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
+            foreach (var cultureName in cultureNames)
+            {
+                var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+                Assert.Equal("d MMM", result.ComponentOnePattern);
+                Assert.Equal("Z@", result.ComponentTwoPattern);
+            }
+        }
+
+        [StaFact]
+        public void ResettingDayOfWeekStyle()
+        {
+            const string cultureName = "en-001";
+            CalendarFormatInfo.SetDayOfWeekStyle(cultureName, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
+            CalendarFormatInfo.ResetDayOfWeekStyle(cultureName);
+            var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+            Assert.Equal("d MMM", result.ComponentOnePattern);
+            Assert.Equal("ddd,", result.ComponentTwoPattern);
+        }
+
+        [StaFact]
+        public void ResettingDayOfWeekStyleOfMultupleCultures()
+        {
+            string[] cultureNames = { "en-001", "en-150" };
+            CalendarFormatInfo.SetDayOfWeekStyle(cultureNames, new CalendarFormatInfo.DayOfWeekStyle("Z", "@", true));
+            CalendarFormatInfo.ResetDayOfWeekStyle(cultureNames);
+            foreach (var cultureName in cultureNames)
+            {
+                var result = CalendarFormatInfo.FromCultureInfo(CultureInfo.GetCultureInfo(cultureName));
+                Assert.Equal("d MMM", result.ComponentOnePattern);
+                Assert.Equal("ddd,", result.ComponentTwoPattern);
+            }
+        }
+    }
+}