tests: Add tests on ctors

Author: angularsen

UnitsNet.Tests/QuantityTests.Ctor.cs

@@ -0,0 +1,96 @@
+using System.Diagnostics.CodeAnalysis;
+using JetBrains.Annotations;
+using UnitsNet.Units;
+using Xunit;
+
+namespace UnitsNet.Tests
+{
+    [UsedImplicitly]
+    public partial class QuantityTests
+    {
+        /// <summary>
+        /// Tests constructors of quantity types.
+        /// </summary>
+        public class Ctor
+        {
+            [Fact]
+            [SuppressMessage("ReSharper", "ObjectCreationAsStatement", Justification = "Only testing the ctor itself, not the resulting value.")]
+            public void DefaultCtorOfRepresentativeTypes_DoesNotThrow()
+            {
+                // double types
+                new Length();
+
+                // decimal types
+                new Information();
+
+                // logarithmic types
+                new Level();
+            }
+
+            [Fact]
+            public void DefaultCtorOfRepresentativeTypes_SetsValueToZeroAndUnitToBaseUnit()
+            {
+                // double types
+                Assert.Equal(0, new Mass().Value);
+                Assert.Equal(MassUnit.Kilogram, new Mass().Unit);
+
+                // decimal types
+                Assert.Equal(0, new Information().Value);
+                Assert.Equal(InformationUnit.Bit, new Information().Unit);
+
+                // logarithmic types
+                Assert.Equal(0, new Level().Value);
+                Assert.Equal(LevelUnit.Decibel, new Level().Unit);
+            }
+
+            [Fact]
+            public void CtorWithOnlyValueOfRepresentativeTypes_SetsValueToGivenValueAndUnitToBaseUnit()
+            {
+#pragma warning disable 618
+                // double types
+                Assert.Equal(5, new Mass(5L).Value);
+                Assert.Equal(5, new Mass(5d).Value);
+                Assert.Equal(5, new Mass(5m).Value);
+                Assert.Equal(MassUnit.Kilogram, new Mass(5L).Unit);
+                Assert.Equal(MassUnit.Kilogram, new Mass(5d).Unit);
+                Assert.Equal(MassUnit.Kilogram, new Mass(5m).Unit);
+
+                // decimal types
+                Assert.Equal(5, new Information(5L).Value);
+                Assert.Equal(5, new Information(5d).Value);
+                Assert.Equal(5, new Information(5m).Value);
+                Assert.Equal(InformationUnit.Bit, new Information(5L).Unit);
+                Assert.Equal(InformationUnit.Bit, new Information(5d).Unit);
+                Assert.Equal(InformationUnit.Bit, new Information(5m).Unit);
+
+                // logarithmic types
+                Assert.Equal(5, new Level(5L).Value);
+                Assert.Equal(5, new Level(5d).Value);
+                Assert.Equal(5, new Level(5m).Value);
+                Assert.Equal(LevelUnit.Decibel, new Level(5L).Unit);
+                Assert.Equal(LevelUnit.Decibel, new Level(5d).Unit);
+                Assert.Equal(LevelUnit.Decibel, new Level(5m).Unit);
+#pragma warning restore 618
+            }
+
+            [Fact]
+            public void CtorWithValueAndUnitOfRepresentativeTypes_SetsValueAndUnit()
+            {
+                // double types
+                var mass = new Mass(5L, MassUnit.Centigram);
+                Assert.Equal(5, mass.Value);
+                Assert.Equal(MassUnit.Centigram, mass.Unit);
+
+                // decimal types
+                var information = new Information(5, InformationUnit.Kibibit);
+                Assert.Equal(5, information.Value);
+                Assert.Equal(InformationUnit.Kibibit, information.Unit);
+
+                // logarithmic types
+                var level = new Level(5, LevelUnit.Neper);
+                Assert.Equal(5, level.Value);
+                Assert.Equal(LevelUnit.Neper, level.Unit);
+            }
+        }
+    }
+}

UnitsNet.Tests/UnitsNet.Tests.csproj

@@ -13,6 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="JetBrains.Annotations" Version="11.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0" />
     <PackageReference Include="xunit" Version="2.3.0-beta4-build3742" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.0-beta4-build3742" />