Reorganize result tests

MPF.Test/Core/Data/ResultTests.cs

@@ -0,0 +1,42 @@
+using MPF.Core.Data;
+using Xunit;
+
+namespace MPF.Test.Core.Data
+{
+    public class ResultTests
+    {
+        [Fact]
+        public void EmptySuccessTest()
+        {
+            var actual = Result.Success();
+            Assert.True(actual);
+            Assert.Empty(actual.Message);
+        }
+
+        [Fact]
+        public void CustomMessageSuccessTest()
+        {
+            string message = "Success!";
+            var actual = Result.Success(message);
+            Assert.True(actual);
+            Assert.Equal(message, actual.Message);
+        }
+
+        [Fact]
+        public void EmptyFailureTest()
+        {
+            var actual = Result.Failure();
+            Assert.False(actual);
+            Assert.Empty(actual.Message);
+        }
+
+        [Fact]
+        public void CustomMessageFailureTest()
+        {
+            string message = "Failure!";
+            var actual = Result.Failure(message);
+            Assert.False(actual);
+            Assert.Equal(message, actual.Message);
+        }
+    }
+}

MPF.Test/ResultTest.cs

@@ -1,30 +0,0 @@
-using MPF.Core.Data;
-using Xunit;
-
-namespace MPF.Test
-{
-    public class ResultTest
-    {
-        [Fact]
-        public void ResultSuccessTest()
-        {
-            Result actual = Result.Success();
-            Assert.Empty(actual.Message);
-
-            string message = "Success!";
-            actual = Result.Success(message);
-            Assert.Equal(message, actual.Message);
-        }
-
-        [Fact]
-        public void ResultFailureTest()
-        {
-            Result actual = Result.Failure();
-            Assert.Empty(actual.Message);
-
-            string message = "Failure!";
-            actual = Result.Failure(message);
-            Assert.Equal(message, actual.Message);
-        }
-    }
-}