Enable IDE2000 (#39803)

Contributes to #24055

.editorconfig

@@ -246,6 +246,10 @@ file_header_template = Licensed to the .NET Foundation under one or more agreeme
 # IDE0161: Convert to file-scoped namespace
 dotnet_diagnostic.IDE0161.severity = warning
 
+# IDE2000: Disallow multiple blank lines
+dotnet_style_allow_multiple_blank_lines_experimental = false
+dotnet_diagnostic.IDE2000.severity = warning
+
 [**/{test,samples,perf}/**.{cs,vb}]
 # CA1018: Mark attributes with AttributeUsageAttribute
 dotnet_diagnostic.CA1018.severity = suggestion

src/Analyzers/Analyzers/test/MinimalStartupTest.cs

@@ -481,8 +481,6 @@ protected Task VerifyAnalyzerAsync(string source, params DiagnosticResult[] expe
         return test.RunAsync();
     }
 
-
-
     [Fact]
     public async Task StartupAnalyzer_AuthNoRouting()
     {

src/Analyzers/Analyzers/test/StartupFactsTest.cs

@@ -105,7 +105,6 @@ internal void Configure(IApplicationBuilder app)
         [nameof(NotAStartupClass)] = NotAStartupClass,
     };
 
-
     [Theory]
     [InlineData(nameof(BasicStartup), "ConfigureServices")]
     [InlineData(nameof(EnvironmentStartup), "ConfigureDevelopmentServices")]

src/Antiforgery/src/AntiforgeryServiceCollectionExtensions.cs

@@ -39,7 +39,6 @@ public static IServiceCollection AddAntiforgery(this IServiceCollection services
         services.TryAddSingleton<IAntiforgeryAdditionalDataProvider, DefaultAntiforgeryAdditionalDataProvider>();
         services.TryAddSingleton<ObjectPoolProvider, DefaultObjectPoolProvider>();
 
-
         services.TryAddSingleton<ObjectPool<AntiforgerySerializationContext>>(serviceProvider =>
         {
             var provider = serviceProvider.GetRequiredService<ObjectPoolProvider>();

src/Antiforgery/test/DefaultAntiforgeryTokenGeneratorTest.cs

@@ -261,7 +261,6 @@ public void IsCookieTokenValid_ValidToken_ReturnsTrue()
         Assert.True(isValid);
     }
 
-
     [Fact]
     public void TryValidateTokenSet_CookieTokenMissing()
     {
@@ -296,7 +295,6 @@ public void TryValidateTokenSet_FieldTokenMissing()
             claimUidExtractor: null,
             additionalDataProvider: null);
 
-
         // Act & Assert
         string message;
         var ex = Assert.Throws<ArgumentNullException>(

src/Azure/AzureAD/Authentication.AzureADB2C.UI/src/AzureAdB2COptions.cs

@@ -30,7 +30,6 @@ public class AzureADB2COptions
     /// </summary>
     public string JwtBearerSchemeName { get; internal set; }
 
-
     /// <summary>
     /// Gets or sets the client Id.
     /// </summary>

src/Caching/SqlServer/src/MonoSqlParameterCollectionExtensions.cs

@@ -25,7 +25,6 @@ public static SqlParameterCollection AddExpiresAtTimeMono(
         return parameters.AddWithValue(Columns.Names.ExpiresAtTime, SqlDbType.DateTime, utcTime.UtcDateTime);
     }
 
-
     public static SqlParameterCollection AddAbsoluteExpirationMono(
                 this SqlParameterCollection parameters,
                 DateTimeOffset? utcTime)

src/Components/Components/src/BindConverter.cs

@@ -411,7 +411,6 @@ private static string FormatDateTimeValueCore(DateTime value, CultureInfo? cultu
     [SuppressMessage("ApiDesign", "RS0026:Do not add multiple public overloads with optional parameters", Justification = "Required to maintain compatibility")]
     public static string FormatValue(DateTimeOffset value, CultureInfo? culture = null) => FormatDateTimeOffsetValueCore(value, format: null, culture);
 
-
     /// <summary>
     /// Formats the provided <paramref name="value"/> as a <see cref="System.String"/>.
     /// </summary>

src/Components/Components/src/ComponentBase.cs

@@ -188,7 +188,6 @@ void IComponent.Attach(RenderHandle renderHandle)
         _renderHandle = renderHandle;
     }
 
-
     /// <summary>
     /// Sets parameters supplied by the component's parent in the render tree.
     /// </summary>

src/Components/Components/src/Rendering/RenderTreeBuilder.cs

@@ -170,7 +170,6 @@ public void AddAttribute(int sequence, string name)
             throw new InvalidOperationException($"Valueless attributes may only be added immediately after frames of type {RenderTreeFrameType.Element}");
         }
 
-
         _entries.AppendAttribute(sequence, name, BoxedTrue);
     }
 

src/Components/Components/test/EventCallbackTest.cs

@@ -27,7 +27,6 @@ public async Task EventCallbackOfT_Default()
         await callback.InvokeAsync();
     }
 
-
     [Fact]
     public async Task EventCallback_NullReceiver()
     {
@@ -38,7 +37,6 @@ public async Task EventCallback_NullReceiver()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
     }
@@ -53,7 +51,6 @@ public async Task EventCallbackOfT_NullReceiver()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
     }
@@ -70,7 +67,6 @@ public async Task EventCallback_Action_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -88,7 +84,6 @@ public async Task EventCallback_Action_IgnoresArg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -107,7 +102,6 @@ public async Task EventCallback_ActionT_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Null(arg);
         Assert.Equal(1, runCount);
@@ -127,7 +121,6 @@ public async Task EventCallback_ActionT_Arg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.NotNull(arg);
         Assert.Equal(1, runCount);
@@ -147,7 +140,6 @@ public async Task EventCallback_ActionT_Arg_ValueType()
         // Act
         await callback.InvokeAsync(17);
 
-
         // Assert
         Assert.Equal(17, arg);
         Assert.Equal(1, runCount);
@@ -183,7 +175,6 @@ public async Task EventCallback_FuncTask_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -201,7 +192,6 @@ public async Task EventCallback_FuncTask_IgnoresArg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -220,7 +210,6 @@ public async Task EventCallback_FuncTTask_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Null(arg);
         Assert.Equal(1, runCount);
@@ -240,7 +229,6 @@ public async Task EventCallback_FuncTTask_Arg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.NotNull(arg);
         Assert.Equal(1, runCount);
@@ -260,7 +248,6 @@ public async Task EventCallback_FuncTTask_Arg_ValueType()
         // Act
         await callback.InvokeAsync(17);
 
-
         // Assert
         Assert.Equal(17, arg);
         Assert.Equal(1, runCount);
@@ -296,7 +283,6 @@ public async Task EventCallbackOfT_Action_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -314,7 +300,6 @@ public async Task EventCallbackOfT_Action_IgnoresArg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -333,7 +318,6 @@ public async Task EventCallbackOfT_ActionT_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Null(arg);
         Assert.Equal(1, runCount);
@@ -353,7 +337,6 @@ public async Task EventCallbackOfT_ActionT_Arg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.NotNull(arg);
         Assert.Equal(1, runCount);
@@ -372,7 +355,6 @@ public async Task EventCallbackOfT_FuncTask_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -390,7 +372,6 @@ public async Task EventCallbackOfT_FuncTask_IgnoresArg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.Equal(1, runCount);
         Assert.Equal(1, component.Count);
@@ -409,7 +390,6 @@ public async Task EventCallbackOfT_FuncTTask_Null()
         // Act
         await callback.InvokeAsync();
 
-
         // Assert
         Assert.Null(arg);
         Assert.Equal(1, runCount);
@@ -429,7 +409,6 @@ public async Task EventCallbackOfT_FuncTTask_Arg()
         // Act
         await callback.InvokeAsync(new EventArgs());
 
-
         // Assert
         Assert.NotNull(arg);
         Assert.Equal(1, runCount);