diff --git a/test/Discord.Net.Tests/Discord.Net.Tests.csproj b/test/Discord.Net.Tests/Discord.Net.Tests.csproj
index bf2457187..204dca5c4 100644
--- a/test/Discord.Net.Tests/Discord.Net.Tests.csproj
+++ b/test/Discord.Net.Tests/Discord.Net.Tests.csproj
@@ -10,6 +10,9 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Tests.Permissions.cs" />
+  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="../../src/Discord.Net.Commands/Discord.Net.Commands.csproj" />
     <ProjectReference Include="../../src/Discord.Net.Core/Discord.Net.Core.csproj" />
diff --git a/test/Discord.Net.Tests/Tests.ChannelPermissions.cs b/test/Discord.Net.Tests/Tests.ChannelPermissions.cs
index ac8ede4e4..b37a1195e 100644
--- a/test/Discord.Net.Tests/Tests.ChannelPermissions.cs
+++ b/test/Discord.Net.Tests/Tests.ChannelPermissions.cs
@@ -1,10 +1,10 @@
-using System;
+using System;
 using System.Threading.Tasks;
 using Xunit;
 
 namespace Discord
 {
-    public partial class Tests
+    public class ChannelPermissionsTests
     {
         [Fact]
         public Task TestChannelPermission()
diff --git a/test/Discord.Net.Tests/Tests.GuildPermissions.cs b/test/Discord.Net.Tests/Tests.GuildPermissions.cs
index bb113d221..a562f4afb 100644
--- a/test/Discord.Net.Tests/Tests.GuildPermissions.cs
+++ b/test/Discord.Net.Tests/Tests.GuildPermissions.cs
@@ -1,10 +1,10 @@
-using System;
+using System;
 using System.Threading.Tasks;
 using Xunit;
 
 namespace Discord
 {
-    public partial class Tests
+    public class GuidPermissionsTests
     {
         [Fact]
         public Task TestGuildPermission()
diff --git a/test/Discord.Net.Tests/Tests.Permissions.cs b/test/Discord.Net.Tests/Tests.Permissions.cs
new file mode 100644
index 000000000..e22659d15
--- /dev/null
+++ b/test/Discord.Net.Tests/Tests.Permissions.cs
@@ -0,0 +1,706 @@
+using System;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace Discord
+{
+    public class PermissionsTests
+    {
+        private void TestHelper(ChannelPermissions value, ChannelPermission permission, bool expected = false)
+            => TestHelper(value.RawValue, (ulong)permission, expected);
+
+        private void TestHelper(GuildPermissions value, GuildPermission permission, bool expected = false)
+            => TestHelper(value.RawValue, (ulong)permission, expected);
+
+        /// <summary>
+        /// Tests the flag of the given permissions value to the expected output
+        /// and then tries to toggle the flag on and off
+        /// </summary>
+        /// <param name="rawValue"></param>
+        /// <param name="flagValue"></param>
+        /// <param name="expected"></param>
+        private void TestHelper(ulong rawValue, ulong flagValue, bool expected)
+        {
+            Assert.Equal(expected, Permissions.GetValue(rawValue, flagValue));
+
+            // check that toggling the bit works
+            Permissions.UnsetFlag(ref rawValue, flagValue);
+            Assert.Equal(false, Permissions.GetValue(rawValue, flagValue));
+            Permissions.SetFlag(ref rawValue, flagValue);
+            Assert.Equal(true, Permissions.GetValue(rawValue, flagValue));
+
+            // do the same, but with the SetValue method
+            Permissions.SetValue(ref rawValue, true, flagValue);
+            Assert.Equal(true, Permissions.GetValue(rawValue, flagValue));
+            Permissions.SetValue(ref rawValue, false, flagValue);
+            Assert.Equal(false, Permissions.GetValue(rawValue, flagValue));
+        }
+
+        /// <summary>
+        /// Tests that flag of the given permissions value to be the expected output
+        /// and then tries cycling through the states of the allow and deny values
+        /// for that flag
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="flag"></param>
+        /// <param name="expected"></param>
+        private void TestHelper(OverwritePermissions value, ChannelPermission flag, PermValue expected)
+        {
+            // check that the value matches
+            Assert.Equal(expected, Permissions.GetValue(value.AllowValue, value.DenyValue, flag));
+
+            // check toggling bits for both allow and deny
+            // have to make copies to get around read only property
+            ulong allow = value.AllowValue;
+            ulong deny = value.DenyValue;
+
+            // both unset should be inherit
+            Permissions.UnsetFlag(ref allow, (ulong)flag);
+            Permissions.UnsetFlag(ref deny, (ulong)flag);
+            Assert.Equal(PermValue.Inherit, Permissions.GetValue(allow, deny, flag));
+
+            // allow set should be allow
+            Permissions.SetFlag(ref allow, (ulong)flag);
+            Permissions.UnsetFlag(ref deny, (ulong)flag);
+            Assert.Equal(PermValue.Allow, Permissions.GetValue(allow, deny, flag));
+
+            // deny should be deny
+            Permissions.UnsetFlag(ref allow, (ulong)flag);
+            Permissions.SetFlag(ref deny, (ulong)flag);
+            Assert.Equal(PermValue.Deny, Permissions.GetValue(allow, deny, flag));
+
+            // allow takes precedence
+            Permissions.SetFlag(ref allow, (ulong)flag);
+            Permissions.SetFlag(ref deny, (ulong)flag);
+            Assert.Equal(PermValue.Allow, Permissions.GetValue(allow, deny, flag));
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Tests that text channel permissions get the right value
+        /// from the Has method.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasChannelPermissionText()
+        {
+            var value = ChannelPermissions.Text;
+            // check that the result of GetValue matches for all properties of text channel
+            TestHelper(value, ChannelPermission.CreateInstantInvite, true);
+            TestHelper(value, ChannelPermission.ManageChannels, true);
+            TestHelper(value, ChannelPermission.AddReactions, true);
+            TestHelper(value, ChannelPermission.ViewChannel, true);
+            TestHelper(value, ChannelPermission.SendMessages, true);
+            TestHelper(value, ChannelPermission.SendTTSMessages, true);
+            TestHelper(value, ChannelPermission.ManageMessages, true);
+            TestHelper(value, ChannelPermission.EmbedLinks, true);
+            TestHelper(value, ChannelPermission.AttachFiles, true);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, true);
+            TestHelper(value, ChannelPermission.MentionEveryone, true);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, true);
+            TestHelper(value, ChannelPermission.ManageRoles, true);
+            TestHelper(value, ChannelPermission.ManageWebhooks, true);
+
+            TestHelper(value, ChannelPermission.Connect, false);
+            TestHelper(value, ChannelPermission.Speak, false);
+            TestHelper(value, ChannelPermission.MuteMembers, false);
+            TestHelper(value, ChannelPermission.DeafenMembers, false);
+            TestHelper(value, ChannelPermission.MoveMembers, false);
+            TestHelper(value, ChannelPermission.UseVAD, false);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Tests that no channel permissions get the right value
+        /// from the Has method.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasChannelPermissionNone()
+        {
+            // check that none will fail all
+            var value = ChannelPermissions.None;
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, false);
+            TestHelper(value, ChannelPermission.ManageChannels, false);
+            TestHelper(value, ChannelPermission.AddReactions, false);
+            TestHelper(value, ChannelPermission.ViewChannel, false);
+            TestHelper(value, ChannelPermission.SendMessages, false);
+            TestHelper(value, ChannelPermission.SendTTSMessages, false);
+            TestHelper(value, ChannelPermission.ManageMessages, false);
+            TestHelper(value, ChannelPermission.EmbedLinks, false);
+            TestHelper(value, ChannelPermission.AttachFiles, false);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, false);
+            TestHelper(value, ChannelPermission.MentionEveryone, false);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, false);
+            TestHelper(value, ChannelPermission.ManageRoles, false);
+            TestHelper(value, ChannelPermission.ManageWebhooks, false);
+            TestHelper(value, ChannelPermission.Connect, false);
+            TestHelper(value, ChannelPermission.Speak, false);
+            TestHelper(value, ChannelPermission.MuteMembers, false);
+            TestHelper(value, ChannelPermission.DeafenMembers, false);
+            TestHelper(value, ChannelPermission.MoveMembers, false);
+            TestHelper(value, ChannelPermission.UseVAD, false);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Tests that the dm channel permissions get the right value
+        /// from the Has method.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasChannelPermissionDM()
+        {
+            // check that none will fail all
+            var value = ChannelPermissions.DM;
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, false);
+            TestHelper(value, ChannelPermission.ManageChannels, false);
+            TestHelper(value, ChannelPermission.AddReactions, false);
+            TestHelper(value, ChannelPermission.ViewChannel, true);
+            TestHelper(value, ChannelPermission.SendMessages, true);
+            TestHelper(value, ChannelPermission.SendTTSMessages, false);
+            TestHelper(value, ChannelPermission.ManageMessages, false);
+            TestHelper(value, ChannelPermission.EmbedLinks, true);
+            TestHelper(value, ChannelPermission.AttachFiles, true);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, true);
+            TestHelper(value, ChannelPermission.MentionEveryone, false);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, true);
+            TestHelper(value, ChannelPermission.ManageRoles, false);
+            TestHelper(value, ChannelPermission.ManageWebhooks, false);
+            TestHelper(value, ChannelPermission.Connect, true);
+            TestHelper(value, ChannelPermission.Speak, true);
+            TestHelper(value, ChannelPermission.MuteMembers, false);
+            TestHelper(value, ChannelPermission.DeafenMembers, false);
+            TestHelper(value, ChannelPermission.MoveMembers, false);
+            TestHelper(value, ChannelPermission.UseVAD, true);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Tests that the group channel permissions get the right value
+        /// from the Has method.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasChannelPermissionGroup()
+        {
+            var value = ChannelPermissions.Group;
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, false);
+            TestHelper(value, ChannelPermission.ManageChannels, false);
+            TestHelper(value, ChannelPermission.AddReactions, false);
+            TestHelper(value, ChannelPermission.ViewChannel, false);
+            TestHelper(value, ChannelPermission.SendMessages, true);
+            TestHelper(value, ChannelPermission.SendTTSMessages, true);
+            TestHelper(value, ChannelPermission.ManageMessages, false);
+            TestHelper(value, ChannelPermission.EmbedLinks, true);
+            TestHelper(value, ChannelPermission.AttachFiles, true);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, false);
+            TestHelper(value, ChannelPermission.MentionEveryone, false);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, false);
+            TestHelper(value, ChannelPermission.ManageRoles, false);
+            TestHelper(value, ChannelPermission.ManageWebhooks, false);
+            TestHelper(value, ChannelPermission.Connect, true);
+            TestHelper(value, ChannelPermission.Speak, true);
+            TestHelper(value, ChannelPermission.MuteMembers, false);
+            TestHelper(value, ChannelPermission.DeafenMembers, false);
+            TestHelper(value, ChannelPermission.MoveMembers, false);
+            TestHelper(value, ChannelPermission.UseVAD, true);
+
+            return Task.CompletedTask;
+        }
+
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Tests that the voice channel permissions get the right value
+        /// from the Has method.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasChannelPermissionVoice()
+        {
+            // make a flag with all possible values for Voice channel permissions
+            var value = ChannelPermissions.Voice;
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, true);
+            TestHelper(value, ChannelPermission.ManageChannels, true);
+            TestHelper(value, ChannelPermission.AddReactions, false);
+            TestHelper(value, ChannelPermission.ViewChannel, false);
+            TestHelper(value, ChannelPermission.SendMessages, false);
+            TestHelper(value, ChannelPermission.SendTTSMessages, false);
+            TestHelper(value, ChannelPermission.ManageMessages, false);
+            TestHelper(value, ChannelPermission.EmbedLinks, false);
+            TestHelper(value, ChannelPermission.AttachFiles, false);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, false);
+            TestHelper(value, ChannelPermission.MentionEveryone, false);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, false);
+            TestHelper(value, ChannelPermission.ManageRoles, true);
+            TestHelper(value, ChannelPermission.ManageWebhooks, false);
+            TestHelper(value, ChannelPermission.Connect, true);
+            TestHelper(value, ChannelPermission.Speak, true);
+            TestHelper(value, ChannelPermission.MuteMembers, true);
+            TestHelper(value, ChannelPermission.DeafenMembers, true);
+            TestHelper(value, ChannelPermission.MoveMembers, true);
+            TestHelper(value, ChannelPermission.UseVAD, true);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Test that that the Has method of <see cref="Discord.GuildPermissions"/> 
+        /// returns the correct value when no permissions are set.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasGuildPermissionNone()
+        {
+            var value = GuildPermissions.None;
+
+            TestHelper(value, GuildPermission.CreateInstantInvite, false);
+            TestHelper(value, GuildPermission.KickMembers, false);
+            TestHelper(value, GuildPermission.BanMembers, false);
+            TestHelper(value, GuildPermission.Administrator, false);
+            TestHelper(value, GuildPermission.ManageChannels, false);
+            TestHelper(value, GuildPermission.ManageGuild, false);
+            TestHelper(value, GuildPermission.AddReactions, false);
+            TestHelper(value, GuildPermission.ViewAuditLog, false);
+            TestHelper(value, GuildPermission.ReadMessages, false);
+            TestHelper(value, GuildPermission.SendMessages, false);
+            TestHelper(value, GuildPermission.SendTTSMessages, false);
+            TestHelper(value, GuildPermission.ManageMessages, false);
+            TestHelper(value, GuildPermission.EmbedLinks, false);
+            TestHelper(value, GuildPermission.AttachFiles, false);
+            TestHelper(value, GuildPermission.ReadMessageHistory, false);
+            TestHelper(value, GuildPermission.MentionEveryone, false);
+            TestHelper(value, GuildPermission.UseExternalEmojis, false);
+            TestHelper(value, GuildPermission.Connect, false);
+            TestHelper(value, GuildPermission.Speak, false);
+            TestHelper(value, GuildPermission.MuteMembers, false);
+            TestHelper(value, GuildPermission.MoveMembers, false);
+            TestHelper(value, GuildPermission.UseVAD, false);
+            TestHelper(value, GuildPermission.ChangeNickname, false);
+            TestHelper(value, GuildPermission.ManageNicknames, false);
+            TestHelper(value, GuildPermission.ManageRoles, false);
+            TestHelper(value, GuildPermission.ManageWebhooks, false);
+            TestHelper(value, GuildPermission.ManageEmojis, false);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Test that that the Has method of <see cref="Discord.GuildPermissions"/> 
+        /// returns the correct value when all permissions are set.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasGuildPermissionAll()
+        {
+            var value = GuildPermissions.All;
+
+            TestHelper(value, GuildPermission.CreateInstantInvite, true);
+            TestHelper(value, GuildPermission.KickMembers, true);
+            TestHelper(value, GuildPermission.BanMembers, true);
+            TestHelper(value, GuildPermission.Administrator, true);
+            TestHelper(value, GuildPermission.ManageChannels, true);
+            TestHelper(value, GuildPermission.ManageGuild, true);
+            TestHelper(value, GuildPermission.AddReactions, true);
+            TestHelper(value, GuildPermission.ViewAuditLog, true);
+            TestHelper(value, GuildPermission.ReadMessages, true);
+            TestHelper(value, GuildPermission.SendMessages, true);
+            TestHelper(value, GuildPermission.SendTTSMessages, true);
+            TestHelper(value, GuildPermission.ManageMessages, true);
+            TestHelper(value, GuildPermission.EmbedLinks, true);
+            TestHelper(value, GuildPermission.AttachFiles, true);
+            TestHelper(value, GuildPermission.ReadMessageHistory, true);
+            TestHelper(value, GuildPermission.MentionEveryone, true);
+            TestHelper(value, GuildPermission.UseExternalEmojis, true);
+            TestHelper(value, GuildPermission.Connect, true);
+            TestHelper(value, GuildPermission.Speak, true);
+            TestHelper(value, GuildPermission.MuteMembers, true);
+            TestHelper(value, GuildPermission.MoveMembers, true);
+            TestHelper(value, GuildPermission.UseVAD, true);
+            TestHelper(value, GuildPermission.ChangeNickname, true);
+            TestHelper(value, GuildPermission.ManageNicknames, true);
+            TestHelper(value, GuildPermission.ManageRoles, true);
+            TestHelper(value, GuildPermission.ManageWebhooks, true);
+            TestHelper(value, GuildPermission.ManageEmojis, true);
+
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Tests for the <see cref="Discord.Permissions"/> class.
+        /// 
+        /// Test that that the Has method of <see cref="Discord.GuildPermissions"/> 
+        /// returns the correct value when webhook permissions are set.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestPermissionsHasGuildPermissionWebhook()
+        {
+            var value = GuildPermissions.Webhook;
+
+            TestHelper(value, GuildPermission.CreateInstantInvite, false);
+            TestHelper(value, GuildPermission.KickMembers, false);
+            TestHelper(value, GuildPermission.BanMembers, false);
+            TestHelper(value, GuildPermission.Administrator, false);
+            TestHelper(value, GuildPermission.ManageChannels, false);
+            TestHelper(value, GuildPermission.ManageGuild, false);
+            TestHelper(value, GuildPermission.AddReactions, false);
+            TestHelper(value, GuildPermission.ViewAuditLog, false);
+            TestHelper(value, GuildPermission.ReadMessages, false);
+            TestHelper(value, GuildPermission.SendMessages, true);
+            TestHelper(value, GuildPermission.SendTTSMessages, true);
+            TestHelper(value, GuildPermission.ManageMessages, false);
+            TestHelper(value, GuildPermission.EmbedLinks, true);
+            TestHelper(value, GuildPermission.AttachFiles, true);
+            TestHelper(value, GuildPermission.ReadMessageHistory, false);
+            TestHelper(value, GuildPermission.MentionEveryone, false);
+            TestHelper(value, GuildPermission.UseExternalEmojis, false);
+            TestHelper(value, GuildPermission.Connect, false);
+            TestHelper(value, GuildPermission.Speak, false);
+            TestHelper(value, GuildPermission.MuteMembers, false);
+            TestHelper(value, GuildPermission.MoveMembers, false);
+            TestHelper(value, GuildPermission.UseVAD, false);
+            TestHelper(value, GuildPermission.ChangeNickname, false);
+            TestHelper(value, GuildPermission.ManageNicknames, false);
+            TestHelper(value, GuildPermission.ManageRoles, false);
+            TestHelper(value, GuildPermission.ManageWebhooks, false);
+            TestHelper(value, GuildPermission.ManageEmojis, false);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Test <see cref="Discord.OverwritePermissions"/>
+        /// for when all text permissions are allowed and denied
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestOverwritePermissionsText()
+        {
+            // allow all for text channel
+            var value = new OverwritePermissions(ChannelPermissions.Text.RawValue, ChannelPermissions.None.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Allow);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Allow);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Allow);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Allow);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Allow);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Inherit);
+
+            value = new OverwritePermissions(ChannelPermissions.None.RawValue, ChannelPermissions.Text.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Deny);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Deny);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Deny);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Deny);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Deny);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Inherit);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Test <see cref="Discord.OverwritePermissions"/>
+        /// for when none of the permissions are set.
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestOverwritePermissionsNone()
+        {
+            // allow all for text channel
+            var value = new OverwritePermissions(ChannelPermissions.None.RawValue, ChannelPermissions.None.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Inherit);
+
+            value = new OverwritePermissions();
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Inherit);
+
+            value = OverwritePermissions.InheritAll;
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Inherit);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Test <see cref="Discord.OverwritePermissions"/>
+        /// for when all dm permissions are allowed and denied
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestOverwritePermissionsDM()
+        {
+            // allow all for text channel
+            var value = new OverwritePermissions(ChannelPermissions.DM.RawValue, ChannelPermissions.None.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Allow);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Allow);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Allow);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Allow);
+
+            value = new OverwritePermissions(ChannelPermissions.None.RawValue, ChannelPermissions.DM.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Deny);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Deny);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Deny);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Deny);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Test <see cref="Discord.OverwritePermissions"/>
+        /// for when all group permissions are allowed and denied
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestOverwritePermissionsGroup()
+        {
+            // allow all for group channels
+            var value = new OverwritePermissions(ChannelPermissions.Group.RawValue, ChannelPermissions.None.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Allow);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Allow);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Allow);
+
+            value = new OverwritePermissions(ChannelPermissions.None.RawValue, ChannelPermissions.Group.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Deny);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Deny);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Deny);
+
+            return Task.CompletedTask;
+        }
+
+        /// <summary>
+        /// Test <see cref="Discord.OverwritePermissions"/>
+        /// for when all group permissions are allowed and denied
+        /// </summary>
+        /// <returns></returns>
+        [Fact]
+        public Task TestOverwritePermissionsVoice()
+        {
+            // allow all for group channels
+            var value = new OverwritePermissions(ChannelPermissions.Voice.RawValue, ChannelPermissions.None.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Allow);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Allow);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Allow);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Allow);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Allow);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Allow);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Allow);
+
+            value = new OverwritePermissions(ChannelPermissions.None.RawValue, ChannelPermissions.Voice.RawValue);
+
+            TestHelper(value, ChannelPermission.CreateInstantInvite, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageChannels, PermValue.Deny);
+            TestHelper(value, ChannelPermission.AddReactions, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ViewChannel, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.SendTTSMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageMessages, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.EmbedLinks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.AttachFiles, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ReadMessageHistory, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.MentionEveryone, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.UseExternalEmojis, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.ManageRoles, PermValue.Deny);
+            TestHelper(value, ChannelPermission.ManageWebhooks, PermValue.Inherit);
+            TestHelper(value, ChannelPermission.Connect, PermValue.Deny);
+            TestHelper(value, ChannelPermission.Speak, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MuteMembers, PermValue.Deny);
+            TestHelper(value, ChannelPermission.DeafenMembers, PermValue.Deny);
+            TestHelper(value, ChannelPermission.MoveMembers, PermValue.Deny);
+            TestHelper(value, ChannelPermission.UseVAD, PermValue.Deny);
+
+            return Task.CompletedTask;
+        }
+    }
+}