2 files changed, 154 insertions, 0 deletions

diff --git a/src/test/WixToolsetTest.Data/TupleDefinitionFixture.cs b/src/test/WixToolsetTest.Data/TupleDefinitionFixture.cs
new file mode 100644
index 00000000..53aa2196
--- /dev/null
+++ b/src/test/WixToolsetTest.Data/TupleDefinitionFixture.cs
@@ -0,0 +1,135 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.Data
+{
+    using WixToolset.Data;
+    using WixToolset.Data.Tuples;
+    using Xunit;
+
+    public class TupleDefinitionFixture
+    {
+        [Fact]
+        public void CanCreateFileTuple()
+        {
+            var tuple = TupleDefinitions.File.CreateTuple();
+            Assert.IsType<FileTuple>(tuple);
+            Assert.Same(TupleDefinitions.File, tuple.Definition);
+        }
+
+        [Fact]
+        public void CanCreateFileTupleByName()
+        {
+            var tuple = TupleDefinitions.ByName("File").CreateTuple();
+            Assert.IsType<FileTuple>(tuple);
+            Assert.Same(TupleDefinitions.File, tuple.Definition);
+        }
+
+        //[Fact]
+        //public void CanCreateFileTupleByType()
+        //{
+        //    var tuple = TupleDefinitions.CreateTuple<FileTuple>();
+        //    Assert.Same(TupleDefinitions.File, tuple.Definition);
+        //}
+
+        [Fact]
+        public void CanSetComponentFieldInFileTupleByCasting()
+        {
+            var fileTuple = (FileTuple)TupleDefinitions.File.CreateTuple();
+            fileTuple.Component_ = "Foo";
+            Assert.Equal("Foo", fileTuple.Component_);
+        }
+
+        [Fact]
+        public void CanCheckNameofField()
+        {
+            var fileTuple = new FileTuple();
+            Assert.Equal("Component_", fileTuple.Definition.FieldDefinitions[1].Name);
+            Assert.Null(fileTuple.Fields[0]);
+            fileTuple.Component_ = "Foo";
+            Assert.Equal("Component_", fileTuple.Fields[1].Name);
+            Assert.Same(fileTuple.Definition.FieldDefinitions[1].Name, fileTuple.Fields[1].Name);
+        }
+
+        [Fact]
+        public void CanSetComponentFieldInFileTupleByNew()
+        {
+            var fileTuple = new FileTuple();
+            fileTuple.Component_ = "Foo";
+            Assert.Equal("Foo", fileTuple.Component_);
+        }
+
+        [Fact]
+        public void CanGetContext()
+        {
+            using (new IntermediateFieldContext("bar"))
+            {
+                var fileTuple = new FileTuple();
+                fileTuple.Component_ = "Foo";
+
+                var field = fileTuple[FileTupleFields.Component_];
+                Assert.Equal("Foo", field.AsString());
+                Assert.Equal("bar", field.Context);
+            }
+        }
+
+        [Fact]
+        public void CanSetInNestedContext()
+        {
+            var fileTuple = new FileTuple();
+
+            using (new IntermediateFieldContext("bar"))
+            {
+                fileTuple.Component_ = "Foo";
+
+                var field = fileTuple[FileTupleFields.Component_];
+                Assert.Equal("Foo", field.AsString());
+                Assert.Equal("bar", field.Context);
+
+                using (new IntermediateFieldContext("baz"))
+                {
+                    fileTuple.Component_ = "Foo2";
+
+                    field = fileTuple[FileTupleFields.Component_];
+                    Assert.Equal("Foo2", field.AsString());
+                    Assert.Equal("baz", field.Context);
+
+                    Assert.Equal("Foo", (string)field.PreviousValue);
+                    Assert.Equal("bar", field.PreviousValue.Context);
+                }
+
+                fileTuple.Component_ = "Foo3";
+
+                field = fileTuple[FileTupleFields.Component_];
+                Assert.Equal("Foo3", field.AsString());
+                Assert.Equal("bar", field.Context);
+
+                Assert.Equal("Foo2", (string)field.PreviousValue);
+                Assert.Equal("baz", field.PreviousValue.Context);
+
+                Assert.Equal("Foo", (string)field.PreviousValue.PreviousValue);
+                Assert.Equal("bar", field.PreviousValue.PreviousValue.Context);
+            }
+
+            fileTuple.Component_ = "Foo4";
+
+            var fieldOutside = fileTuple[FileTupleFields.Component_];
+            Assert.Equal("Foo4", fieldOutside.AsString());
+            Assert.Null(fieldOutside.Context);
+        }
+
+        //[Fact]
+        //public void CanSetComponentFieldInFileTuple()
+        //{
+        //    var fileTuple = TupleDefinitions.File.CreateTuple<FileTuple>();
+        //    fileTuple.Component_ = "Foo";
+        //    Assert.Equal("Foo", fileTuple.Component_);
+        //}
+
+        //[Fact]
+        //public void CanThrowOnMismatchTupleType()
+        //{
+        //    var e = Assert.Throws<InvalidCastException>(() => TupleDefinitions.File.CreateTuple<ComponentTuple>());
+        //    Assert.Equal("Requested wrong type WixToolset.Data.Tuples.ComponentTuple, actual type WixToolset.Data.Tuples.FileTuple", e.Message);
+        //}
+    }
+}
diff --git a/src/test/WixToolsetTest.Data/WixToolsetTest.Data.csproj b/src/test/WixToolsetTest.Data/WixToolsetTest.Data.csproj
new file mode 100644
index 00000000..fe0d99c5
--- /dev/null
+++ b/src/test/WixToolsetTest.Data/WixToolsetTest.Data.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0-preview-20170628-02" />
+    <PackageReference Include="xunit" Version="2.2.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\WixToolset.Data\WixToolset.Data.csproj" />
+  </ItemGroup>
+
+</Project>