Annotate test code.

Author: JohanLarsson

PropertyChangedAnalyzers.Test/INPC022EqualToBackingField/CodeFix.cs

@@ -34,6 +34,7 @@ public class ReferenceType
         public static void Message()
         {
             var before = @"
+#pragma warning disable CS0169
 namespace N
 {
     using System;
@@ -70,6 +71,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
 }";
 
             var after = @"
+#pragma warning disable CS0169
 namespace N
 {
     using System;
@@ -111,6 +113,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
         public static void Check(string expressionBefore, string expressionAfter)
         {
             var before = @"
+#pragma warning disable CS0169
 namespace N
 {
     using System;
@@ -119,12 +122,12 @@ namespace N
 
     public class C: INotifyPropertyChanged
     {
-        private ReferenceType p;
-        private ReferenceType f;
+        private ReferenceType? p;
+        private ReferenceType? f;
 
         public event PropertyChangedEventHandler? PropertyChanged;
 
-        public ReferenceType P
+        public ReferenceType? P
         {
             get => this.p;
             set
@@ -147,6 +150,7 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
 }".AssertReplace("ReferenceEquals(value, ↓this.f)", expressionBefore);
 
             var after = @"
+#pragma warning disable CS0169
 namespace N
 {
     using System;
@@ -155,12 +159,12 @@ namespace N
 
     public class C: INotifyPropertyChanged
     {
-        private ReferenceType p;
-        private ReferenceType f;
+        private ReferenceType? p;
+        private ReferenceType? f;
 
         public event PropertyChangedEventHandler? PropertyChanged;
 
-        public ReferenceType P
+        public ReferenceType? P
         {
             get => this.p;
             set

PropertyChangedAnalyzers.Test/INPC022EqualToBackingField/Valid.cs

@@ -16,7 +16,6 @@ public static void NotifyingProperty()
 namespace N
 {
     using System.ComponentModel;
-    using System.Runtime.CompilerServices;
 
     public class C : INotifyPropertyChanged
     {
@@ -59,9 +58,6 @@ public static void WithBackingFieldStatementBodies()
             var code = @"
 namespace N
 {
-    using System.ComponentModel;
-    using System.Runtime.CompilerServices;
-
     public class C
     {
         private int p;
@@ -83,9 +79,6 @@ public static void WithBackingFieldStatementBodiesAssigningTwice()
             var code = @"
 namespace N
 {
-    using System.ComponentModel;
-    using System.Runtime.CompilerServices;
-
     public class C
     {
         private int p;
@@ -111,9 +104,6 @@ public static void WithBackingFieldExpressionBodies()
             var code = @"
 namespace N
 {
-    using System.ComponentModel;
-    using System.Runtime.CompilerServices;
-
     public class C
     {
         private int p;
@@ -379,24 +369,24 @@ namespace N
 {
     public class C<T> : I
     {
-        private T p;
+        private T? p;
 
-        public T P
+        public T? P
         {
             get => this.p;
             set => this.p = value;
         }
 
-        object I.P
+        object? I.P
         {
             get => this.p;
-            set => this.P = (T)value;
+            set => this.P = (T?)value;
         }
     }
 
     interface I
     {
-        object P { get; set; }
+        object? P { get; set; }
     }
 }";
 
@@ -508,7 +498,6 @@ public static void IntPropertiesAssignsPropertyReturnField()
 namespace ValidCode
 {
     using System.ComponentModel;
-    using System.Globalization;
     using System.Runtime.CompilerServices;
 
     public class C : INotifyPropertyChanged
@@ -556,7 +545,6 @@ public static void IntPropertiesAssignsFieldReturnsProperty()
 namespace ValidCode
 {
     using System.ComponentModel;
-    using System.Globalization;
     using System.Runtime.CompilerServices;
 
     public class C : INotifyPropertyChanged
@@ -648,6 +636,8 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
         public static void Issue102()
         {
             var code = @"
+#nullable disable
+#pragma warning disable CS0649
 namespace ValidCode.Repros
 {
     using System;
@@ -668,7 +658,7 @@ public sealed class C<T> : INotifyPropertyChanged, IDisposable, IC
         private T source;
         private bool disposed;
 
-        public event PropertyChangedEventHandler? PropertyChanged;
+        public event PropertyChangedEventHandler PropertyChanged;
 
         public T Source
         {
@@ -711,7 +701,7 @@ INotifyPropertyChanged IC.Source
             set => this.Source = (T)value;
         }
 
-        private void OnPropertyChanged([CallerMemberName] string? propertyName = null)
+        private void OnPropertyChanged([CallerMemberName] string propertyName = null)
         {
             this.PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
         }
@@ -751,6 +741,7 @@ public void Dispose()
         public static void TrySet()
         {
             var code = @"
+#pragma warning disable CS0169
 namespace N
 {
     using System.Collections.Generic;
@@ -796,10 +787,10 @@ protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName
         public static void IgnoreWhenNotGettingSame()
         {
             var code = @"
+#pragma warning disable CS0649
 namespace N
 {
     using System.ComponentModel;
-    using System.Runtime.CompilerServices;
 
     public class C : INotifyPropertyChanged
     {