GH4255: Introduce Verify for CodeGen Expectations

.editorconfig

@@ -20,4 +20,14 @@ indent_size = 4
 
 [*.js]
 indent_style = tab
-indent_size = 2
+indent_size = 2
+
+# Verify settings
+[*.{received,verified}.{txt,xml,json,cake}]
+charset = "utf-8-bom"
+end_of_line = lf
+indent_size = unset
+indent_style = unset
+insert_final_newline = false
+tab_width = unset
+trim_trailing_whitespace = false

.gitattributes

@@ -18,7 +18,7 @@
 #
 # Merging from the command prompt will add diff markers to the files if there
 # are conflicts (Merging from VS is not affected by the settings below, in VS
-# the diff markers are never inserted). Diff markers may cause the following 
+# the diff markers are never inserted). Diff markers may cause the following
 # file extensions to fail to load in VS. An alternative would be to treat
 # these files as binary and thus will always conflict and require user
 # intervention with every merge. To do so, just uncomment the entries below
@@ -47,9 +47,9 @@
 
 ###############################################################################
 # diff behavior for common document formats
-# 
+#
 # Convert binary document formats to text before diffing them. This feature
-# is only available from the command line. Turn it on by uncommenting the 
+# is only available from the command line. Turn it on by uncommenting the
 # entries below.
 ###############################################################################
 #*.doc   diff=astextplain
@@ -61,4 +61,13 @@
 #*.pdf   diff=astextplain
 #*.PDF   diff=astextplain
 #*.rtf   diff=astextplain
-#*.RTF   diff=astextplain
+#*.RTF   diff=astextplain
+
+###############################################################################
+# Verify files
+###############################################################################
+
+*.verified.txt text eol=lf working-tree-encoding=UTF-8
+*.verified.xml text eol=lf working-tree-encoding=UTF-8
+*.verified.json text eol=lf working-tree-encoding=UTF-8
+*.verified.cake text eol=lf working-tree-encoding=UTF-8

.gitignore

@@ -94,4 +94,7 @@ Thumbs.db
 .DS_Store
 
 # Generated Assembly info
-AssemblyInfo.Generated.cs
+AssemblyInfo.Generated.cs
+
+# Verify
+*.received

src/Cake.Core.Tests/Cake.Core.Tests.csproj

@@ -15,6 +15,8 @@
   <!-- Global packages -->
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="Spectre.Verify.Extensions" Version="22.3.0" />
+    <PackageReference Include="Verify.Xunit" Version="22.4.1" />
     <PackageReference Include="xunit" Version="2.6.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3">
       <PrivateAssets>all</PrivateAssets>
@@ -24,7 +26,6 @@
     <PackageReference Include="Castle.Core" Version="5.1.1" />
   </ItemGroup>
   <ItemGroup>
-    <EmbeddedResource Include="Unit\Scripting\CodeGen\Expected\Methods\*;Unit\Scripting\CodeGen\Expected\Properties\*" Exclude="bin\**;obj\**;**\*.xproj;packages\**;@(EmbeddedResource)" />
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
   </ItemGroup>
 </Project>

src/Cake.Core.Tests/Fixtures/MethodAliasGeneratorFixture.cs

@@ -13,32 +13,13 @@ namespace Cake.Core.Tests.Fixtures
 {
     public sealed class MethodAliasGeneratorFixture
     {
-        private readonly Assembly _assembly;
         private readonly MethodInfo[] _methods;
 
         public MethodAliasGeneratorFixture()
         {
-            _assembly = typeof(MethodAliasGeneratorFixture).GetTypeInfo().Assembly;
             _methods = typeof(MethodAliasGeneratorData).GetMethods();
         }
 
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2202:Do not dispose objects multiple times")]
-        public string GetExpectedCode(string name)
-        {
-            var resource = string.Concat("Cake.Core.Tests.Unit.Scripting.CodeGen.Expected.Methods.", name);
-            using (var stream = _assembly.GetManifestResourceStream(resource))
-            {
-                if (stream == null)
-                {
-                    throw new InvalidOperationException("Could not load manifest resource stream.");
-                }
-                using (var reader = new StreamReader(stream))
-                {
-                    return reader.ReadToEnd().NormalizeGeneratedCode();
-                }
-            }
-        }
-
         public string Generate(string name)
         {
             var method = _methods.SingleOrDefault(x => x.Name == name);

src/Cake.Core.Tests/Fixtures/PropertyAliasGeneratorFixture.cs

@@ -22,23 +22,6 @@ public PropertyAliasGeneratorFixture()
             _methods = typeof(PropertyAliasGeneratorData).GetMethods();
         }
 
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2202:Do not dispose objects multiple times")]
-        public string GetExpectedData(string name)
-        {
-            var resource = string.Concat("Cake.Core.Tests.Unit.Scripting.CodeGen.Expected.Properties.", name);
-            using (var stream = _assembly.GetManifestResourceStream(resource))
-            {
-                if (stream == null)
-                {
-                    throw new InvalidOperationException("Could not load manifest resource stream.");
-                }
-                using (var reader = new StreamReader(stream))
-                {
-                    return reader.ReadToEnd().NormalizeGeneratedCode();
-                }
-            }
-        }
-
         public string Generate(string name)
         {
             var method = _methods.SingleOrDefault(x => x.Name == name);

src/Cake.Core.Tests/Unit/Scripting/CodeGen/MethodAliasGeneratorTests.cs

@@ -2,14 +2,19 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Threading.Tasks;
 using Cake.Core.Scripting.CodeGen;
 using Cake.Core.Tests.Fixtures;
+using VerifyXunit;
 using Xunit;
+using static Cake.Core.Tests.VerifyConfig;
 
 namespace Cake.Core.Tests.Unit.Scripting.CodeGen
 {
+    [UsesVerify]
     public sealed class MethodAliasGeneratorTests
     {
+        [UsesVerify]
         public sealed class TheGeneratorMethod : IClassFixture<MethodAliasGeneratorFixture>
         {
             private readonly MethodAliasGeneratorFixture _fixture;
@@ -30,76 +35,70 @@ public void Should_Throw_If_Method_Is_Null()
             }
 
             [Theory]
-            [InlineData("NonGeneric_ExtensionMethodWithNoParameters")]
-            [InlineData("NonGeneric_ExtensionMethodWithParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithGenericParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithGenericExpressionParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithGenericExpressionArrayParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithGenericExpressionParamsArrayParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithReturnValue")]
-            [InlineData("NonGeneric_ExtensionMethodWithParameterArray")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalObjectParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalBooleanParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalStringParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalEnumParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalCharParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalDecimalParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableTParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableBooleanParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableCharParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableEnumParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableDecimalParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableLongParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOptionalNullableDoubleParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithReservedKeywordParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithOutputParameter")]
-            [InlineData("NonGeneric_ExtensionMethodWithGenericCollectionOfNestedType")]
-            [InlineData("NonGeneric_ExtensionMethodWithParameterAttributes")]
-            [InlineData("NonGeneric_ExtensionMethodWithDynamicReturnValue")]
-            public void Should_Return_Correct_Generated_Code_For_Non_Generic_Methods(string name)
+            [InlineData("ExtensionMethodWithNoParameters")]
+            [InlineData("ExtensionMethodWithParameter")]
+            [InlineData("ExtensionMethodWithGenericParameter")]
+            [InlineData("ExtensionMethodWithGenericExpressionParameter")]
+            [InlineData("ExtensionMethodWithGenericExpressionArrayParameter")]
+            [InlineData("ExtensionMethodWithGenericExpressionParamsArrayParameter")]
+            [InlineData("ExtensionMethodWithReturnValue")]
+            [InlineData("ExtensionMethodWithParameterArray")]
+            [InlineData("ExtensionMethodWithOptionalObjectParameter")]
+            [InlineData("ExtensionMethodWithOptionalBooleanParameter")]
+            [InlineData("ExtensionMethodWithOptionalStringParameter")]
+            [InlineData("ExtensionMethodWithOptionalEnumParameter")]
+            [InlineData("ExtensionMethodWithOptionalCharParameter")]
+            [InlineData("ExtensionMethodWithOptionalDecimalParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableTParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableBooleanParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableCharParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableEnumParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableDecimalParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableLongParameter")]
+            [InlineData("ExtensionMethodWithOptionalNullableDoubleParameter")]
+            [InlineData("ExtensionMethodWithReservedKeywordParameter")]
+            [InlineData("ExtensionMethodWithOutputParameter")]
+            [InlineData("ExtensionMethodWithGenericCollectionOfNestedType")]
+            [InlineData("ExtensionMethodWithParameterAttributes")]
+            [InlineData("ExtensionMethodWithDynamicReturnValue")]
+            public Task Should_Return_Correct_Generated_Code_For_Non_Generic_Methods(string name)
             {
-                // Given
-                var expected = _fixture.GetExpectedCode(name);
-
-                // When
-                var result = _fixture.Generate(name);
+                // Given / When
+                var result = _fixture.Generate("NonGeneric_" + name);
 
                 // Then
-                Assert.Equal(expected, result);
+                return VerifyCake(result)
+                    .UseParameters(name);
             }
 
             [Theory]
             [InlineData("Generic_ExtensionMethod")]
             [InlineData("Generic_ExtensionMethodWithParameter")]
             [InlineData("Generic_ExtensionMethodWithGenericReturnValue")]
             [InlineData("Generic_ExtensionMethodWithGenericReturnValueAndTypeParamConstraints")]
-            public void Should_Return_Correct_Generated_Code_For_Generic_Methods(string name)
+            public Task Should_Return_Correct_Generated_Code_For_Generic_Methods(string name)
             {
-                // Given
-                var expected = _fixture.GetExpectedCode(name);
-
-                // When
+                // Given / When
                 var result = _fixture.Generate(name);
 
                 // Then
-                Assert.Equal(expected, result);
+                return VerifyCake(result)
+                    .UseParameters(name);
             }
 
             [Theory]
             [InlineData("Obsolete_ImplicitWarning_NoMessage")]
             [InlineData("Obsolete_ImplicitWarning_WithMessage")]
             [InlineData("Obsolete_ExplicitWarning_WithMessage")]
             [InlineData("Obsolete_ExplicitError_WithMessage")]
-            public void Should_Return_Correct_Generated_Code_For_Obsolete_Methods(string name)
+            public Task Should_Return_Correct_Generated_Code_For_Obsolete_Methods(string name)
             {
-                // Given
-                var expected = _fixture.GetExpectedCode(name);
-
-                // When
+                // Given / When
                 var result = _fixture.Generate(name);
 
                 // Then
-                Assert.Equal(expected, result);
+                return VerifyCake(result)
+                    .UseParameters(name);
             }
         }
     }