Add tests for remaining types to verify Events is non-null

Author: halter73

src/Security/Authentication/test/BearerTokenTests.cs

@@ -23,4 +23,11 @@ protected override void RegisterAuth(AuthenticationBuilder services, Action<Bear
     {
         services.AddBearerToken(configure);
     }
+
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new BearerTokenOptions();
+        Assert.NotNull(options.Events);
+    }
 }

src/Security/Authentication/test/CookieTests.cs

@@ -32,6 +32,13 @@ protected override void RegisterAuth(AuthenticationBuilder services, Action<Cook
         services.AddCookie(configure);
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new CookieAuthenticationOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task NormalRequestPassesThrough()
     {

src/Security/Authentication/test/FacebookTests.cs

@@ -42,6 +42,13 @@ protected override void ConfigureDefaults(FacebookOptions o)
         o.SignInScheme = "auth1";
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new FacebookOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task ThrowsIfAppIdMissing()
     {

src/Security/Authentication/test/GoogleTests.cs

@@ -42,6 +42,13 @@ protected override void ConfigureDefaults(GoogleOptions o)
         o.SignInScheme = "auth1";
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new GoogleOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task ChallengeWillTriggerRedirection()
     {

src/Security/Authentication/test/MicrosoftAccountTests.cs

@@ -43,6 +43,13 @@ protected override void ConfigureDefaults(MicrosoftAccountOptions o)
         o.SignInScheme = "auth1";
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new MicrosoftAccountOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task ChallengeWillTriggerApplyRedirectEvent()
     {

src/Security/Authentication/test/OAuthTests.cs

@@ -31,6 +31,13 @@ protected override void RegisterAuth(AuthenticationBuilder services, Action<OAut
         });
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new OAuthOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task ThrowsIfClientIdMissing()
     {

src/Security/Authentication/test/OpenIdConnect/OpenIdConnectTests.cs

@@ -25,6 +25,13 @@ public class OpenIdConnectTests
     static readonly string nonceDelimiter = ".";
     const string DefaultHost = @"https://example.com";
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new OpenIdConnectOptions();
+        Assert.NotNull(options.Events);
+    }
+
     /// <summary>
     /// Tests RedirectForSignOutContext replaces the OpenIdConnectMesssage correctly.
     /// </summary>

src/Security/Authentication/test/TwitterTests.cs

@@ -41,6 +41,13 @@ protected override void ConfigureDefaults(TwitterOptions o)
         o.SignInScheme = "auth1";
     }
 
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new TwitterOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task ChallengeWillTriggerApplyRedirectEvent()
     {

src/Security/Authentication/test/WsFederation/WsFederationTest.cs

@@ -23,6 +23,13 @@ namespace Microsoft.AspNetCore.Authentication.WsFederation;
 
 public class WsFederationTest
 {
+    [Fact]
+    public void EventsPropertyIsInitializedOnConstruction()
+    {
+        var options = new WsFederationOptions();
+        Assert.NotNull(options.Events);
+    }
+
     [Fact]
     public async Task VerifySchemeDefaults()
     {