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require "helper"
require "thor/parser"
describe Thor::Option do
def parse(key, value)
Thor::Option.parse(key, value)
end
def option(name, options = {})
@option ||= Thor::Option.new(name, options)
end
describe "#parse" do
describe "with value as a symbol" do
describe "and symbol is a valid type" do
it "has type equals to the symbol" do
expect(parse(:foo, :string).type).to eq(:string)
expect(parse(:foo, :numeric).type).to eq(:numeric)
end
it "has no default value" do
expect(parse(:foo, :string).default).to be nil
expect(parse(:foo, :numeric).default).to be nil
end
end
describe "equals to :required" do
it "has type equals to :string" do
expect(parse(:foo, :required).type).to eq(:string)
end
it "has no default value" do
expect(parse(:foo, :required).default).to be nil
end
end
describe "and symbol is not a reserved key" do
it "has type equal to :string" do
expect(parse(:foo, :bar).type).to eq(:string)
end
it "has no default value" do
expect(parse(:foo, :bar).default).to be nil
end
end
end
describe "with value as hash" do
it "has default type :hash" do
expect(parse(:foo, :a => :b).type).to eq(:hash)
end
it "has default value equal to the hash" do
expect(parse(:foo, :a => :b).default).to eq(:a => :b)
end
end
describe "with value as array" do
it "has default type :array" do
expect(parse(:foo, [:a, :b]).type).to eq(:array)
end
it "has default value equal to the array" do
expect(parse(:foo, [:a, :b]).default).to eq([:a, :b])
end
end
describe "with value as string" do
it "has default type :string" do
expect(parse(:foo, "bar").type).to eq(:string)
end
it "has default value equal to the string" do
expect(parse(:foo, "bar").default).to eq("bar")
end
end
describe "with value as numeric" do
it "has default type :numeric" do
expect(parse(:foo, 2.0).type).to eq(:numeric)
end
it "has default value equal to the numeric" do
expect(parse(:foo, 2.0).default).to eq(2.0)
end
end
describe "with value as boolean" do
it "has default type :boolean" do
expect(parse(:foo, true).type).to eq(:boolean)
expect(parse(:foo, false).type).to eq(:boolean)
end
it "has default value equal to the boolean" do
expect(parse(:foo, true).default).to eq(true)
expect(parse(:foo, false).default).to eq(false)
end
end
describe "with key as a symbol" do
it "sets the name equal to the key" do
expect(parse(:foo, true).name).to eq("foo")
end
end
describe "with key as an array" do
it "sets the first items in the array to the name" do
expect(parse([:foo, :bar, :baz], true).name).to eq("foo")
end
it "sets all other items as aliases" do
expect(parse([:foo, :bar, :baz], true).aliases).to eq([:bar, :baz])
end
end
end
it "returns the switch name" do
expect(option("foo").switch_name).to eq("--foo")
expect(option("--foo").switch_name).to eq("--foo")
end
it "returns the human name" do
expect(option("foo").human_name).to eq("foo")
expect(option("--foo").human_name).to eq("foo")
end
it "converts underscores to dashes" do
expect(option("foo_bar").switch_name).to eq("--foo-bar")
end
it "can be required and have default values" do
option = option("foo", :required => true, :type => :string, :default => "bar")
expect(option.default).to eq("bar")
expect(option).to be_required
end
it "boolean options cannot be required" do
expect do
option("foo", :required => true, :type => :boolean)
end.to raise_error(ArgumentError, "An option cannot be boolean and required.")
end
it "allows type predicates" do
expect(parse(:foo, :string)).to be_string
expect(parse(:foo, :boolean)).to be_boolean
expect(parse(:foo, :numeric)).to be_numeric
end
it "raises an error on method missing" do
expect do
parse(:foo, :string).unknown?
end.to raise_error(NoMethodError)
end
describe "#usage" do
it "returns usage for string types" do
expect(parse(:foo, :string).usage).to eq("[--foo=FOO]")
end
it "returns usage for numeric types" do
expect(parse(:foo, :numeric).usage).to eq("[--foo=N]")
end
it "returns usage for array types" do
expect(parse(:foo, :array).usage).to eq("[--foo=one two three]")
end
it "returns usage for hash types" do
expect(parse(:foo, :hash).usage).to eq("[--foo=key:value]")
end
it "returns usage for boolean types" do
expect(parse(:foo, :boolean).usage).to eq("[--foo], [--no-foo]")
end
it "does not use padding when no aliases are given" do
expect(parse(:foo, :boolean).usage).to eq("[--foo], [--no-foo]")
end
it "documents a negative option when boolean" do
expect(parse(:foo, :boolean).usage).to include("[--no-foo]")
end
it "uses banner when supplied" do
expect(option(:foo, :required => false, :type => :string, :banner => "BAR").usage).to eq("[--foo=BAR]")
end
it "checks when banner is an empty string" do
expect(option(:foo, :required => false, :type => :string, :banner => "").usage).to eq("[--foo]")
end
describe "with required values" do
it "does not show the usage between brackets" do
expect(parse(:foo, :required).usage).to eq("--foo=FOO")
end
end
describe "with aliases" do
it "does not show the usage between brackets" do
expect(parse([:foo, "-f", "-b"], :required).usage).to eq("-f, -b, --foo=FOO")
end
it "does not negate the aliases" do
expect(parse([:foo, "-f", "-b"], :boolean).usage).to eq("-f, -b, [--foo], [--no-foo]")
end
end
end
end
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