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require 'cucumber/cucumber_expressions/cucumber_expression'
require 'cucumber/cucumber_expressions/parameter_type_registry'
module Cucumber
module CucumberExpressions
describe CucumberExpression do
it "documents match arguments" do
parameter_registry = ParameterTypeRegistry.new
### [capture-match-arguments]
expr = "I have {int} cuke(s)"
expression = CucumberExpression.new(expr, parameter_registry)
args = expression.match("I have 7 cukes")
expect(args[0].value(nil)).to eq(7)
### [capture-match-arguments]
end
it "matches word" do
expect(match("three {word} mice", "three blind mice")).to eq(['blind'])
end
it('matches double quoted string') do
expect(match('three {string} mice', 'three "blind" mice')).to eq(['blind'])
end
it('matches multiple double quoted strings') do
expect(match('three {string} and {string} mice', 'three "blind" and "crippled" mice')).to eq(['blind', 'crippled'])
end
it('matches single quoted string') do
expect(match('three {string} mice', "three 'blind' mice")).to eq(['blind'])
end
it('matches multiple single quoted strings') do
expect(match('three {string} and {string} mice', "three 'blind' and 'crippled' mice")).to eq(['blind', 'crippled'])
end
it('does not match misquoted string') do
expect(match('three {string} mice', 'three "blind\' mice')).to eq(nil)
end
it('matches single quoted string with double quotes') do
expect(match('three {string} mice', 'three \'"blind"\' mice')).to eq(['"blind"'])
end
it('matches double quoted string with single quotes') do
expect(match('three {string} mice', 'three "\'blind\'" mice')).to eq(["'blind'"])
end
it('matches double quoted string with escaped double quote') do
expect(match('three {string} mice', 'three "bl\\"nd" mice')).to eq(['bl"nd'])
end
it('matches single quoted string with escaped single quote') do
expect(match('three {string} mice', "three 'bl\\'nd' mice")).to eq(["bl'nd"])
end
it 'matches escaped parentheses' do
expect(match('three \\(exceptionally) {string} mice', 'three (exceptionally) "blind" mice')).to eq(['blind'])
end
it "matches escaped slash" do
expect(match("12\\/2020", "12/2020")).to eq([])
end
it "matches int" do
expect(match("{int}", "22")).to eq([22])
end
it "doesn't match float as int" do
expect(match("{int}", "1.22")).to be_nil
end
it "matches int as float" do
expect(match("{float}", "0")).to eq([0.0])
end
it "matches float" do
expect(match("{float}", "")).to eq(nil)
expect(match("{float}", ".")).to eq(nil)
expect(match("{float}", ",")).to eq(nil)
expect(match("{float}", "-")).to eq(nil)
expect(match("{float}", "E")).to eq(nil)
expect(match("{float}", "1,")).to eq(nil)
expect(match("{float}", ",1")).to eq(nil)
expect(match("{float}", "1.")).to eq(nil)
expect(match("{float}", "1")).to eq([1])
expect(match("{float}", "-1")).to eq([-1])
expect(match("{float}", "1.1")).to eq([1.1])
expect(match("{float}", "1,000")).to eq(nil)
expect(match("{float}", "1,000,0")).to eq(nil)
expect(match("{float}", "1,000.1")).to eq(nil)
expect(match("{float}", "1,000,10")).to eq(nil)
expect(match("{float}", "1,0.1")).to eq(nil)
expect(match("{float}", "1,000,000.1")).to eq(nil)
expect(match("{float}", "-1.1")).to eq([-1.1])
expect(match("{float}", ".1")).to eq([0.1])
expect(match("{float}", "-.1")).to eq([-0.1])
expect(match("{float}", "-.1000001")).to eq([-0.1000001])
expect(match("{float}", "1E1")).to eq([10.0])
expect(match("{float}", ".1E1")).to eq([1])
expect(match("{float}", "E1")).to eq(nil)
expect(match("{float}", "-.1E-1")).to eq([-0.01])
expect(match("{float}", "-.1E-2")).to eq([-0.001])
expect(match("{float}", "-.1E+1")).to eq([-1])
expect(match("{float}", "-.1E+2")).to eq([-10])
expect(match("{float}", "-.1E1")).to eq([-1])
expect(match("{float}", "-.1E2")).to eq([-10])
end
it "matches anonymous" do
expect(match("{}", "0.22")).to eq(["0.22"])
end
'[]()$.|?*+'.split('').each do |char|
it "does not allow parameter type with #{char}" do
expect {match("{#{char}string}", "something")}.to raise_error("Illegal character '#{char}' in parameter name {#{char}string}")
end
end
it "throws unknown parameter type" do
expect {match("{unknown}", "something")}.to raise_error('Undefined parameter type {unknown}')
end
it "does not allow optional parameter types" do
expect {match("({int})", "3")}.to raise_error('Parameter types cannot be optional: ({int})')
end
it "does allow escaped optional parameter types" do
expect(match("\\({int})", "(3)")).to eq([3])
end
it "does not allow text/parameter type alternation" do
expect {match("x/{int}", "3")}.to raise_error('Parameter types cannot be alternative: x/{int}')
end
it "does not allow parameter type/text alternation" do
expect {match("{int}/x", "3")}.to raise_error('Parameter types cannot be alternative: {int}/x')
end
it "exposes source" do
expr = "I have {int} cuke(s)"
expect(CucumberExpression.new(expr, ParameterTypeRegistry.new).source).to eq(expr)
end
it "delegates transform to custom object" do
parameter_type_registry = ParameterTypeRegistry.new
parameter_type_registry.define_parameter_type(
ParameterType.new(
'widget',
/\w+/,
Object,
-> (s) {
self.create_widget(s)
},
false,
true
)
)
expression = CucumberExpression.new(
'I have a {widget}',
parameter_type_registry
)
class World
def create_widget(s)
"widget:#{s}"
end
end
args = expression.match("I have a bolt")
expect(args[0].value(World.new)).to eq('widget:bolt')
end
describe "escapes special characters" do
%w(\\ [ ] ^ $ . | ? * +).each do |character|
it "escapes #{character}" do
expr = "I have {int} cuke(s) and #{character}"
expression = CucumberExpression.new(expr, ParameterTypeRegistry.new)
arg1 = expression.match("I have 800 cukes and #{character}")[0]
expect(arg1.value(nil)).to eq(800)
end
end
end
def match(expression, text)
cucumber_expression = CucumberExpression.new(expression, ParameterTypeRegistry.new)
args = cucumber_expression.match(text)
return nil if args.nil?
args.map {|arg| arg.value(nil)}
end
end
end
end
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