Updated all packages to their latest versions - pre-releases included.

src/Chapter02.Tests/Listing02.01.Tests.cs

@@ -17,31 +17,24 @@ public void Main_WriteNumbers()
 42
 0x2A";
 
-            const string netCoreApp3expected =
+            string expected = // netcoreapp3.0 and later
 @"42
 1.618034
 1.618033988749895
 1.618033988749895
 6.023E+23
 42
 0x2A";
-            string expected;
+
             string netCoreVersion = NetCore.GetNetCoreVersion();
-            if(netCoreVersion.StartsWith("2.1"))
+            if (string.Compare(netCoreVersion, "3") < 0)
             {
                 expected = netCoreApp2expected;
             }
-            else if(netCoreVersion.StartsWith("3"))
-            {
-                expected = netCoreApp3expected;
-            }
-            else
-            {
-                throw new System.Exception(".NET Core Version ({netCoreVersion}) not handled.");
-            }
 
             IntelliTect.TestTools.Console.ConsoleAssert.Expect(
                     expected, Program.Main);
+
         }
     }
 }

src/Chapter04.Tests/Chapter04.Tests.csproj

@@ -6,6 +6,9 @@
   </PropertyGroup>
   <Import Project="..\Versioning.targets" />
   <Import Project="..\ChapterTests.targets"/>
+  <ItemGroup>
+    <Compile Include="..\Shared\NetCore.cs" Link="NetCore.cs" />
+  </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0-preview-20170727-01" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.2.0-beta" />

src/Chapter04.Tests/Listing04.07.UnexpectedInequality.Tests.cs

@@ -8,19 +8,32 @@ public class ProgramTests
         [TestMethod]
         public void MainTest()
         {
-            const string expected =
-                @"4.2 != 4.2000002861023
+            const string netCoreApp2expected =
+@"4.2 != 4.2000002861023
 4.2 != 4.20000028610229
 (float)4.2M != 4.2F
 4.20000028610229 != 4.2
 4.2F != 4.2D
 4.19999980926514 != 4.2
-4.2F != 4.2D";
+4.2F != 4.2D";
 
-            IntelliTect.TestTools.Console.ConsoleAssert.Expect(
-                expected, Program.Main);
-
-            // Removed 4.20000028610229 != 4.20000028610229 ... in .Net Core float conversions seem to be more accurate
+            string expected =
+                @"4.2 != 4.2000002861023
+4.2 != 4.200000286102295
+(float)4.2M != 4.2000003F
+4.200000286102295 != 4.2
+4.2000003F != 4.2D
+4.199999809265137 != 4.2
+4.2F != 4.2D";
+
+            string netCoreVersion = NetCore.GetNetCoreVersion();
+            if (string.Compare(netCoreVersion, "3") < 0)
+            {
+                expected = netCoreApp2expected;
+            }
+
+            IntelliTect.TestTools.Console.ConsoleAssert.Expect(
+                    expected, Program.Main);
         }
     }
 }