require "./spec_helper"

describe CLI::CommandRouter do
  it "should handle simple command as block" do
    router = CLI::CommandRouter.new
    x = 10
    router.add "plus" do |p|
      x += 5
    end
    router.handle "plus"
    x.should eq 15
  end

  it "should handle simple command as proc" do
    router = CLI::CommandRouter.new
    x = 10
    cb = ->(params : Hash(String, String)) { x += 5 }
    router.add "plus", &cb
    router.handle "plus"
    x.should eq 15
  end

  it "should handle command with argument" do
    router = CLI::CommandRouter.new
    x = 10
    router.add "plus {x}" do |params|
      x += params["x"].to_i32
    end
    router.handle "plus 5"
    x.should eq 15
  end

  it "should handle command with three arguments" do
    router = CLI::CommandRouter.new
    x = 0
    router.add "plus {x} {y} {z}" do |p|
      x = p["x"].to_i32 + p["y"].to_i32 + p["z"].to_i32
    end
    router.handle "plus 1 3 6"
    x.should eq 10
  end

  it "should match commands from begin of string" do
    router = CLI::CommandRouter.new
    x = 5
    router.add "plus" do |p|
      x += 10
    end
    router.add "mult and plus" do |p|
      x = x * 2 + 10
    end
    router.handle "mult and plus"
    x.should eq 20
  end
end