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require "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
expect do
argument(nil)
end.to raise_error(ArgumentError, "Argument name can't be nil.")
end
it "raises an error if type is unknown" do
expect do
argument(:command, type: :unknown)
end.to raise_error(ArgumentError, "Type :unknown is not valid for arguments.")
end
it "raises an error if argument is required and has default values" do
expect do
argument(:command, type: :string, default: "bar", required: true)
end.to raise_error(ArgumentError, "An argument cannot be required and have default value.")
end
it "raises an error if enum isn't enumerable" do
expect do
argument(:command, type: :string, enum: "bar")
end.to raise_error(ArgumentError, "An argument cannot have an enum other than an enumerable.")
end
end
describe "#usage" do
it "returns usage for string types" do
expect(argument(:foo, type: :string).usage).to eq("FOO")
end
it "returns usage for numeric types" do
expect(argument(:foo, type: :numeric).usage).to eq("N")
end
it "returns usage for array types" do
expect(argument(:foo, type: :array).usage).to eq("one two three")
end
it "returns usage for hash types" do
expect(argument(:foo, type: :hash).usage).to eq("key:value")
end
end
describe "#print_default" do
it "prints arrays in a copy pasteable way" do
expect(argument(:foo, {
required: false,
type: :array,
default: ["one","two"]
}).print_default).to eq('"one" "two"')
end
it "prints arrays with a single string default as before" do
expect(argument(:foo, {
required: false,
type: :array,
default: "foobar"
}).print_default).to eq("foobar")
end
it "prints none arrays as default" do
expect(argument(:foo, {
required: false,
type: :numeric,
default: 13,
}).print_default).to eq(13)
end
end
end
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