Add Spectre.Cli to Spectre.Console

* Renames Spectre.Cli to Spectre.Console.Cli.
* Now uses Verify with Spectre.Console.Cli tests.
* Removes some duplicate definitions.

Closes #168

src/Spectre.Console.Tests/Data/Commands/AnimalCommand.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Linq;
+using Spectre.Console.Cli;
+using SystemConsole = System.Console;
+
+namespace Spectre.Console.Tests.Data
+{
+    public abstract class AnimalCommand<TSettings> : Command<TSettings>
+        where TSettings : CommandSettings
+    {
+        protected void DumpSettings(CommandContext context, TSettings settings)
+        {
+            if (context == null)
+            {
+                throw new ArgumentNullException(nameof(context));
+            }
+
+            if (settings == null)
+            {
+                throw new ArgumentNullException(nameof(settings));
+            }
+
+            var properties = settings.GetType().GetProperties();
+            foreach (var group in properties.GroupBy(x => x.DeclaringType).Reverse())
+            {
+                SystemConsole.WriteLine();
+                SystemConsole.ForegroundColor = ConsoleColor.Yellow;
+                SystemConsole.WriteLine(group.Key.FullName);
+                SystemConsole.ResetColor();
+
+                foreach (var property in group)
+                {
+                    SystemConsole.WriteLine($"  {property.Name} = {property.GetValue(settings)}");
+                }
+            }
+
+            if (context.Remaining.Raw.Count > 0)
+            {
+                SystemConsole.WriteLine();
+                SystemConsole.ForegroundColor = ConsoleColor.Yellow;
+                SystemConsole.WriteLine("Remaining:");
+                SystemConsole.ResetColor();
+                SystemConsole.WriteLine(string.Join(", ", context.Remaining));
+            }
+
+            SystemConsole.WriteLine();
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/CatCommand.cs

@@ -0,0 +1,13 @@
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public class CatCommand : AnimalCommand<CatSettings>
+    {
+        public override int Execute(CommandContext context, CatSettings settings)
+        {
+            DumpSettings(context, settings);
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/DogCommand.cs

@@ -0,0 +1,36 @@
+using System.ComponentModel;
+using System.Linq;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    [Description("The dog command.")]
+    public class DogCommand : AnimalCommand<DogSettings>
+    {
+        public override ValidationResult Validate(CommandContext context, DogSettings settings)
+        {
+            if (context is null)
+            {
+                throw new System.ArgumentNullException(nameof(context));
+            }
+
+            if (settings is null)
+            {
+                throw new System.ArgumentNullException(nameof(settings));
+            }
+
+            if (settings.Age > 100 && !context.Remaining.Raw.Contains("zombie"))
+            {
+                return ValidationResult.Error("Dog is too old...");
+            }
+
+            return base.Validate(context, settings);
+        }
+
+        public override int Execute(CommandContext context, DogSettings settings)
+        {
+            DumpSettings(context, settings);
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/EmptyCommand.cs

@@ -0,0 +1,12 @@
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public sealed class EmptyCommand : Command<EmptyCommandSettings>
+    {
+        public override int Execute(CommandContext context, EmptyCommandSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/GenericCommand.cs

@@ -0,0 +1,13 @@
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public sealed class GenericCommand<TSettings> : Command<TSettings>
+        where TSettings : CommandSettings
+    {
+        public override int Execute(CommandContext context, TSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/GiraffeCommand.cs

@@ -0,0 +1,14 @@
+using System.ComponentModel;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    [Description("The giraffe command.")]
+    public sealed class GiraffeCommand : Command<GiraffeSettings>
+    {
+        public override int Execute(CommandContext context, GiraffeSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/HorseCommand.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    [Description("The horse command.")]
+    public class HorseCommand : AnimalCommand<MammalSettings>
+    {
+        public override int Execute(CommandContext context, MammalSettings settings)
+        {
+            DumpSettings(context, settings);
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/InterceptingCommand.cs

@@ -0,0 +1,22 @@
+using System;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public sealed class InterceptingCommand<TSettings> : Command<TSettings>
+    where TSettings : CommandSettings
+    {
+        private readonly Action<CommandContext, TSettings> _action;
+
+        public InterceptingCommand(Action<CommandContext, TSettings> action)
+        {
+            _action = action ?? throw new ArgumentNullException(nameof(action));
+        }
+
+        public override int Execute(CommandContext context, TSettings settings)
+        {
+            _action(context, settings);
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/InvalidCommand.cs

@@ -0,0 +1,12 @@
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public sealed class InvalidCommand : Command<InvalidSettings>
+    {
+        public override int Execute(CommandContext context, InvalidSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/LionCommand.cs

@@ -0,0 +1,14 @@
+using System.ComponentModel;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    [Description("The lion command.")]
+    public class LionCommand : AnimalCommand<LionSettings>
+    {
+        public override int Execute(CommandContext context, LionSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/OptionVectorCommand.cs

@@ -0,0 +1,12 @@
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public class OptionVectorCommand : Command<OptionVectorSettings>
+    {
+        public override int Execute(CommandContext context, OptionVectorSettings settings)
+        {
+            return 0;
+        }
+    }
+}

src/Spectre.Console.Tests/Data/Commands/ThrowingCommand.cs

@@ -0,0 +1,17 @@
+using System;
+using Spectre.Console.Cli;
+
+namespace Spectre.Console.Tests.Data
+{
+    public sealed class ThrowingCommand : Command<ThrowingCommandSettings>
+    {
+        public override int Execute(CommandContext context, ThrowingCommandSettings settings)
+        {
+            throw new InvalidOperationException("W00t?");
+        }
+    }
+
+    public sealed class ThrowingCommandSettings : CommandSettings
+    {
+    }
+}