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# -*- encoding: utf-8 -*-
require 'cucumber/core/gherkin/parser'
require 'cucumber/core/gherkin/writer'
module Cucumber
module Core
module Gherkin
describe Parser do
let(:receiver) { double }
let(:parser) { Parser.new(receiver) }
let(:visitor) { double }
def parse
parser.document(source)
end
context "for invalid gherkin" do
let(:source) { Gherkin::Document.new(path, "\nnot gherkin\n\nFeature: \n") }
let(:path) { 'path_to/the.feature' }
it "raises an error" do
expect { parse }.to raise_error(ParseError) do |error|
expect( error.message ).to match(/not gherkin/)
expect( error.message ).to match(/#{path}/)
end
end
end
RSpec::Matchers.define :a_null_feature do
match do |actual|
allow( visitor ).to receive(:feature).and_throw
actual.describe_to( visitor )
end
end
context "for empty files" do
let(:source) { Gherkin::Document.new(path, '') }
let(:path) { 'path_to/the.feature' }
it "creates a NullFeature" do
expect( receiver ).to receive(:feature).with(a_null_feature)
parse
end
end
include Writer
def self.source(&block)
let(:source) { gherkin(&block) }
end
def feature
result = nil
allow( receiver ).to receive(:feature) { |feature| result = feature }
parse
result
end
context "when the Gherkin has a language header" do
source do
feature(language: 'ja', keyword: '機能')
end
it "sets the language from the Gherkin" do
expect( feature.language.iso_code ).to eq 'ja'
end
end
context "a Scenario with a DocString" do
source do
feature do
scenario do
step do
doc_string("content")
end
end
end
end
it "parses doc strings without error" do
allow( visitor ).to receive(:feature).and_yield(visitor)
allow( visitor ).to receive(:scenario).and_yield(visitor)
allow( visitor ).to receive(:step).and_yield(visitor)
location = double
expected = Ast::DocString.new("content", "", location)
expect( visitor ).to receive(:doc_string).with(expected)
feature.describe_to(visitor)
end
end
context "a Scenario with a DataTable" do
source do
feature do
scenario do
step do
table do
row "name", "surname"
row "rob", "westgeest"
end
end
end
end
end
it "parses the DataTable" do
visitor = double
allow( visitor ).to receive(:feature).and_yield(visitor)
allow( visitor ).to receive(:scenario).and_yield(visitor)
allow( visitor ).to receive(:step).and_yield(visitor)
expected = Ast::DataTable.new([['name', 'surname'], ['rob', 'westgeest']], Ast::Location.new('foo.feature', 23))
expect( visitor ).to receive(:data_table).with(expected)
feature.describe_to(visitor)
end
end
context "a feature file with a comments on different levels" do
source do
comment 'feature comment'
feature do
comment 'scenario comment'
scenario do
comment 'step comment'
step
end
comment 'scenario outline comment'
scenario_outline do
comment 'outline step comment'
step
comment 'examples comment'
examples do
row
row
end
end
end
end
it "the comments are distibuted to down the ast tree from the feature" do
visitor = double
expect( visitor ).to receive(:feature) do |feature|
expect( feature.comments.join ).to eq "# feature comment"
visitor
end.and_yield(visitor)
expect( visitor ).to receive(:scenario) do |scenario|
expect( scenario.comments.join ).to eq " # scenario comment"
end.and_yield(visitor)
expect( visitor ).to receive(:step) do |step|
expect( step.comments.join ).to eq " # step comment"
end.and_yield(visitor)
expect( visitor ).to receive(:scenario_outline) do |scenario_outline|
expect( scenario_outline.comments.join ).to eq " # scenario outline comment"
end.and_yield(visitor)
expect( visitor ).to receive(:outline_step) do |outline_step|
expect( outline_step.comments.join ).to eq " # outline step comment"
end.and_yield(visitor)
expect( visitor ).to receive(:examples_table) do |examples_table|
expect( examples_table.comments.join ).to eq " # examples comment"
end
feature.describe_to(visitor)
end
end
context "a Scenario Outline" do
source do
feature do
scenario_outline 'outline name' do
step 'passing <arg>'
examples do
row 'arg'
row '1'
row '2'
end
examples do
row 'arg'
row 'a'
end
end
end
end
it "creates a scenario outline node" do
allow( visitor ).to receive(:feature).and_yield(visitor)
expect( visitor ).to receive(:scenario_outline) do |outline|
expect( outline.name ).to eq 'outline name'
end
feature.describe_to(visitor)
end
it "creates a step node for each step of the scenario outline" do
allow( visitor ).to receive(:feature).and_yield(visitor)
allow( visitor ).to receive(:scenario_outline).and_yield(visitor)
allow( visitor ).to receive(:examples_table)
expect( visitor ).to receive(:outline_step) do |step|
expect( step.name ).to eq 'passing <arg>'
end
feature.describe_to(visitor)
end
it "creates an examples table node for each examples table" do
allow( visitor ).to receive(:feature).and_yield(visitor)
allow( visitor ).to receive(:scenario_outline).and_yield(visitor)
allow( visitor ).to receive(:outline_step)
expect( visitor ).to receive(:examples_table).exactly(2).times.and_yield(visitor)
expect( visitor ).to receive(:examples_table_row) do |row|
expect( row.number ).to eq 1
expect( row.values ).to eq ['1']
end.once.ordered
expect( visitor ).to receive(:examples_table_row) do |row|
expect( row.number ).to eq 2
expect( row.values ).to eq ['2']
end.once.ordered
expect( visitor ).to receive(:examples_table_row) do |row|
expect( row.number ).to eq 1
expect( row.values ).to eq ['a']
end.once.ordered
feature.describe_to(visitor)
end
end
context "a Scenario Outline with no Examples" do
source do
feature(language: 'not-a-language')
end
it "throws an error" do
expect { feature.describe_to(double.as_null_object) }.to raise_error(ParseError)
end
end
end
end
end
end
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