1 files changed, 139 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Tools.Tests/ProtoToolsPlatformTaskTest.cs b/src/csharp/Grpc.Tools.Tests/ProtoToolsPlatformTaskTest.cs
new file mode 100644
index 0000000000..54723b74fc
--- /dev/null
+++ b/src/csharp/Grpc.Tools.Tests/ProtoToolsPlatformTaskTest.cs
@@ -0,0 +1,139 @@
+#region Copyright notice and license
+
+// Copyright 2018 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#endregion
+
+using System.Runtime.InteropServices;  // For NETCORE tests.
+using Microsoft.Build.Framework;
+using Moq;
+using NUnit.Framework;
+
+namespace Grpc.Tools.Tests
+{
+    public class ProtoToolsPlatformTaskTest
+    {
+        ProtoToolsPlatform _task;
+        int _cpuMatched, _osMatched;
+
+        [OneTimeSetUp]
+        public void SetUp()
+        {
+            var mockEng = new Mock<IBuildEngine>();
+            _task = new ProtoToolsPlatform() { BuildEngine = mockEng.Object };
+            _task.Execute();
+        }
+
+        [OneTimeTearDown]
+        public void TearDown()
+        {
+            Assert.AreEqual(1, _cpuMatched, "CPU type detection failed");
+            Assert.AreEqual(1, _osMatched, "OS detection failed");
+        }
+
+#if NETCORE
+        // PlatformAttribute not yet available in NUnit, coming soon:
+        // https://github.com/nunit/nunit/pull/3003.
+        // Use same test case names as under the full framework.
+        [Test]
+        public void CpuIsX86()
+        {
+            if (RuntimeInformation.OSArchitecture == Architecture.X86)
+            {
+                _cpuMatched++;
+                Assert.AreEqual("x86", _task.Cpu);
+            }
+        }
+
+        [Test]
+        public void CpuIsX64()
+        {
+            if (RuntimeInformation.OSArchitecture == Architecture.X64)
+            {
+                _cpuMatched++;
+                Assert.AreEqual("x64", _task.Cpu);
+            }
+        }
+
+        [Test]
+        public void OsIsWindows()
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                _osMatched++;
+                Assert.AreEqual("windows", _task.Os);
+            }
+        }
+
+        [Test]
+        public void OsIsLinux()
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+            {
+                _osMatched++;
+                Assert.AreEqual("linux", _task.Os);
+            }
+        }
+
+        [Test]
+        public void OsIsMacOsX()
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+            {
+                _osMatched++;
+                Assert.AreEqual("macosx", _task.Os);
+            }
+        }
+
+#else  // !NETCORE, i.e. full framework.
+
+        [Test, Platform("32-Bit")]
+        public void CpuIsX86()
+        {
+            _cpuMatched++;
+            Assert.AreEqual("x86", _task.Cpu);
+        }
+
+        [Test, Platform("64-Bit")]
+        public void CpuIsX64()
+        {
+            _cpuMatched++;
+            Assert.AreEqual("x64", _task.Cpu);
+        }
+
+        [Test, Platform("Win")]
+        public void OsIsWindows()
+        {
+            _osMatched++;
+            Assert.AreEqual("windows", _task.Os);
+        }
+
+        [Test, Platform("Linux")]
+        public void OsIsLinux()
+        {
+            _osMatched++;
+            Assert.AreEqual("linux", _task.Os);
+        }
+
+        [Test, Platform("MacOSX")]
+        public void OsIsMacOsX()
+        {
+            _osMatched++;
+            Assert.AreEqual("macosx", _task.Os);
+        }
+
+#endif  // NETCORE
+    };
+}