From 1fd5300a657c6922ac670579a9dbef877d5bcd7b Mon Sep 17 00:00:00 2001
From: Luke Preiner <luke.preiner@gmail.com>
Date: Thu, 7 Jan 2021 11:57:53 -0600
Subject: [PATCH] Added basic unit tests for DateTimeOffset

---
 CSharpDate.Test/DateTests.cs | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/CSharpDate.Test/DateTests.cs b/CSharpDate.Test/DateTests.cs
index 5f3483e..0f55135 100644
--- a/CSharpDate.Test/DateTests.cs
+++ b/CSharpDate.Test/DateTests.cs
@@ -56,6 +56,15 @@ public void CanConstructFromDateTime()
 			Assert.True(d1.Equals(d2));
 		}
 
+		[Fact]
+		public void CanConstructFromDateTimeOffset()
+		{
+			Date d1 = new Date(new DateTimeOffset(2001, 2, 3, 4, 5, 6, 7, TimeSpan.Zero).AddTicks(8));
+			Date d2 = new Date(2001, 2, 3);
+			Assert.Equal(d1, d2);
+			Assert.True(d1.Equals(d2));
+		}
+
 		[Fact]
 		public void ToDateRemovesAllTimePortion()
 		{
@@ -76,6 +85,17 @@ public void CanGetDateFromDateTime()
 			Assert.Equal(dt.Day, d.Day);
 		}
 
+		[Fact]
+		public void CanGetDateFromDateTimeOffset()
+		{
+			DateTimeOffset dto = new DateTimeOffset(2013, 4, 5, 6, 7, 8, 9, TimeSpan.Zero);
+			Date d = dto.ToDate();
+
+			Assert.Equal(dto.Year, d.Year);
+			Assert.Equal(dto.Month, d.Month);
+			Assert.Equal(dto.Day, d.Day);
+		}
+
 		[Fact]
 		public void CanAddYears()
 		{
@@ -220,6 +240,35 @@ public void CanExplicitCastToDateTime()
 			Assert.Equal(dt.Day, d.Day);
 		}
 
+		[Fact]
+		public void CanImplicitCastToDateTimeOffset()
+		{
+			Date d = new Date(2013, 4, 5);
+			DateTimeOffset dt = d;
+
+			Assert.Equal(d.Year, dt.Year);
+			Assert.Equal(d.Month, dt.Month);
+			Assert.Equal(d.Day, dt.Day);
+			Assert.Equal(d.DayOfWeek, dt.DayOfWeek);
+			Assert.Equal(d.DayOfYear, dt.DayOfYear);
+			Assert.Equal(0, dt.Hour);
+			Assert.Equal(0, dt.Minute);
+			Assert.Equal(0, dt.Second);
+			Assert.Equal(0, dt.Millisecond);
+		}
+
+		[Fact]
+		public void CanExplicitCastToDateTimeOffset()
+		{
+			DateTime dt = new DateTime(2000, 1, 2, 3, 4, 5);
+			DateTimeOffset dto = new DateTimeOffset(dt, TimeSpan.FromMinutes(1));
+			Date d = (Date)dto;
+
+			Assert.Equal(dto.Year, d.Year);
+			Assert.Equal(dto.Month, d.Month);
+			Assert.Equal(dto.Day, d.Day);
+		}
+
 		[Fact]
 		public void CanToShortString()
 		{