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help text tests pass

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This commit is contained in:
Yaakov 2021-09-25 23:22:16 +10:00
parent 5b242dd42f
commit 3028f83d19
2 changed files with 40 additions and 16 deletions
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55
tests/console.tests/CommandTreeTests.cs
View file

@ -62,8 +62,8 @@ Group
Commands:
one : bar/1 command
two : bar/1 command
"));
two : bar/2 command
".TrimStart()));
}
[TestCase((object)new string[] { "foo" }, ExpectedResult = "foo command")]
@ -71,7 +71,7 @@ Commands:
[TestCase((object)new string[] { "bar", "two" }, ExpectedResult = "bar/2 command")]
public string FindsCommand(string[] args)
{
var command = tree.FindCommand(args);
var command = tree.FindCommand(ImmutableStack<ICommandTree>.Empty, args);
return command?.Description;
}
@ -110,7 +110,7 @@ Commands:
{
ImmutableArray<ICommandTree> SubTrees { get; }
ImmutableArray<ICommand> Commands { get; }
ICommand FindCommand(ReadOnlySpan<string> args);
ICommand FindCommand(IImmutableStack<ICommandTree> path, ReadOnlySpan<string> args);
}
class DefaultCommandTree : ICommandTree
@ -128,7 +128,7 @@ Commands:
public ImmutableArray<ICommandTree> SubTrees { get; }
public ImmutableArray<ICommand> Commands { get; }
public ICommand FindCommand(ReadOnlySpan<string> args)
public ICommand FindCommand(IImmutableStack<ICommandTree> path, ReadOnlySpan<string> args)
{
if (args.Length > 0)
{
@ -144,26 +144,26 @@ Commands:
{
if (tree.Name == args[0])
{
return tree.FindCommand(args[1..]);
return tree.FindCommand(path.Push(this), args[1..]);
}
}
}
return new DefaultHelpTextCommand(this);
return new DefaultHelpTextCommand(path.Push(this));
}
}
class DefaultHelpTextCommand : ICommand
{
public DefaultHelpTextCommand(ICommandTree tree)
public DefaultHelpTextCommand(IImmutableStack<ICommandTree> path)
{
this.CommandTree = tree ?? throw new ArgumentNullException(nameof(tree));
this.Path = path;
}
public string Name => "help";
public string Description => "Print help text";
public ICommandTree CommandTree { get; }
public IImmutableStack<ICommandTree> Path { get; }
public ValueTask<int> ExecuteAsync()
{
@ -171,17 +171,38 @@ Commands:
return ValueTask.FromResult(1); // TODO: const
}
public string GetHelpText() => CommandTree.BuildHelpText();
public string GetHelpText() => CommandTreeExtensions.BuildHelpText(Path);
}
static class ICommandTreeExtensions
static class CommandTreeExtensions
{
public static string BuildHelpText(this ICommandTree tree)
public static ICommand? FindCommand(this ICommandTree tree, ReadOnlySpan<string> args)
{
if (tree is null)
{
throw new ArgumentNullException(nameof(tree));
}
return tree.FindCommand(ImmutableStack<ICommandTree>.Empty, args);
}
public static string BuildHelpText(IImmutableStack<ICommandTree> path)
{
var sb = new StringBuilder();
sb.AppendLine("Group");
sb.Append(" ");
sb.AppendLine(tree.Name);
var pathNodes = path.ToArray();
for (var i = pathNodes.Length - 1; i > 0; i--)
{
sb.Append(pathNodes[i].Name);
sb.Append(' ');
}
var tree = pathNodes[0];
sb.Append(tree.Name);
sb.Append(" : ");
sb.AppendLine(tree.Description);
sb.AppendLine();
if (!tree.SubTrees.IsEmpty)
@ -194,13 +215,15 @@ Commands:
{
sb.Append(" ");
sb.Append(child.Name);
for (var i = 0; i < maxSpacing; i++)
for (var i = 0; i < maxSpacing - child.Name.Length; i++)
{
sb.Append(' ');
}
sb.Append(": ");
sb.AppendLine(child.Description);
}
sb.AppendLine();
}
if (!tree.Commands.IsEmpty)
@ -213,7 +236,7 @@ Commands:
{
sb.Append(" ");
sb.Append(command.Name);
for (var i = 0; i < maxSpacing; i++)
for (var i = 0; i < maxSpacing - command.Name.Length; i++)
{
sb.Append(' ');
}

1
tests/console.tests/console.tests.csproj
View file

@ -4,6 +4,7 @@
<TargetFramework>net5.0</TargetFramework>
<IsPackable>false</IsPackable>
<RootNamespace>Shamir.Console.Tests</RootNamespace>
<Nullable>annotations</Nullable>
</PropertyGroup>
<ItemGroup>