Move Spectre.Console.Cli to it's own package

test/Spectre.Console.Cli.Tests/Unit/CommandAppTests.Constructor.cs

@@ -0,0 +1,104 @@
+namespace Spectre.Console.Tests.Unit.Cli;
+
+public sealed partial class CommandAppTests
+{
+    public class NullableSettings : CommandSettings
+    {
+        public NullableSettings(bool? detailed, string[] extra)
+        {
+            Detailed = detailed;
+            Extra = extra;
+        }
+
+        [CommandOption("-d")]
+        public bool? Detailed { get; }
+
+        [CommandArgument(0, "[extra]")]
+        public string[] Extra { get; }
+    }
+
+    public class NullableWithInitSettings : CommandSettings
+    {
+        [CommandOption("-d")]
+        public bool? Detailed { get; init; }
+
+        [CommandArgument(0, "[extra]")]
+        public string[] Extra { get; init; }
+    }
+
+    public class NullableCommand : Command<NullableSettings>
+    {
+        public override int Execute(CommandContext context, NullableSettings settings) => 0;
+    }
+
+    public class NullableWithInitCommand : Command<NullableWithInitSettings>
+    {
+        public override int Execute(CommandContext context, NullableWithInitSettings settings) => 0;
+    }
+
+    [Fact]
+    public void Should_Populate_Nullable_Objects_In_Settings()
+    {
+        // Given
+        var fixture = new CommandAppTester();
+        fixture.Configure(configurator =>
+        {
+            configurator.SetApplicationName("myapp");
+            configurator.AddCommand<NullableCommand>("null");
+        });
+
+        // When
+        var result = fixture.Run("null");
+
+        // Then
+        result.Settings.ShouldBeOfType<NullableSettings>().And(settings =>
+        {
+            settings.Detailed.ShouldBeNull();
+            settings.Extra.ShouldBeNull();
+        });
+    }
+
+    [Fact]
+    public void Should_Populate_Nullable_Objects_With_Init_In_Settings()
+    {
+        // Given
+        var fixture = new CommandAppTester();
+        fixture.Configure(configurator =>
+        {
+            configurator.SetApplicationName("myapp");
+            configurator.AddCommand<NullableWithInitCommand>("null");
+        });
+
+        // When
+        var result = fixture.Run("null");
+
+        // Then
+        result.Settings.ShouldBeOfType<NullableWithInitSettings>().And(settings =>
+        {
+            settings.Detailed.ShouldBeNull();
+            settings.Extra.ShouldBeNull();
+        });
+    }
+
+    [Fact]
+    public void Should_Populate_Regular_Settings()
+    {
+        // Given
+        var fixture = new CommandAppTester();
+        fixture.Configure(configurator =>
+        {
+            configurator.SetApplicationName("myapp");
+            configurator.AddCommand<NullableCommand>("null");
+        });
+
+        // When
+        var result = fixture.Run("null", "-d", "true", "first-item");
+
+        // Then
+        result.Settings.ShouldBeOfType<NullableSettings>().And(settings =>
+        {
+            settings.Detailed.ShouldBe(true);
+            settings.Extra.ShouldBe(new[] { "first-item" });
+        });
+    }
+}