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require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
require 'thor/parser'
describe Thor::Argument do
def argument(name, options={})
@argument ||= Thor::Argument.new(name, options)
end
describe "errors" do
it "raises an error if name is not supplied" do
lambda {
argument(nil)
}.should raise_error(ArgumentError, "Argument name can't be nil.")
end
it "raises an error if type is unknown" do
lambda {
argument(:task, :type => :unknown)
}.should raise_error(ArgumentError, "Type :unknown is not valid for arguments.")
end
it "raises an error if argument is required and have default values" do
lambda {
argument(:task, :type => :string, :default => "bar", :required => true)
}.should raise_error(ArgumentError, "An argument cannot be required and have default value.")
end
end
describe "#usage" do
it "returns usage for string types" do
argument(:foo, :type => :string).usage.should == "FOO"
end
it "returns usage for numeric types" do
argument(:foo, :type => :numeric).usage.should == "N"
end
it "returns usage for array types" do
argument(:foo, :type => :array).usage.should == "one two three"
end
it "returns usage for hash types" do
argument(:foo, :type => :hash).usage.should == "key:value"
end
end
end
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