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require 'gherkin/parser'
require 'gherkin/token_scanner'
require 'gherkin/token_matcher'
require 'gherkin/ast_builder'
require 'gherkin/errors'
require 'rspec'
module Gherkin
describe Parser do
it "parses a simple feature" do
parser = Parser.new
scanner = TokenScanner.new("Feature: test")
ast = parser.parse(scanner)
expect(ast).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "test",
children: []
},
comments: [],
type: :GherkinDocument
})
end
it "parses a complex feature" do
# This should include every significant type of thing within the language
feature_text = "@feature_tag\n" +
"Feature: feature name\n" +
" feature description\n" +
"\n" +
" Background: background name\n" +
" background description\n" +
" * a step\n" +
"\n" +
" @scenario_tag\n" +
" Scenario: scenario name\n" +
" scenario description\n" +
" * a step with a table\n" +
" | a table |\n" +
"\n" +
" @outline_tag\n" +
" Scenario Outline: outline name\n" +
" outline description\n" +
" * a step with a doc string\n" +
" \"\"\" content_type\n" +
" lots of text\n" +
" \"\"\"\n" +
" # Random file comment\n" +
" @example_tag\n" +
" Examples: examples name\n" +
" examples description\n" +
" | param |\n" +
" | value |\n"
parser = Parser.new
scanner = TokenScanner.new(feature_text)
ast = parser.parse(scanner)
expect(ast).to eq({
feature: {type: :Feature,
tags: [{type: :Tag,
location: {line: 1, column: 1},
name: "@feature_tag"}],
location: {line: 2, column: 1},
language: "en",
keyword: "Feature",
name: "feature name",
description: " feature description",
children: [{type: :Background,
location: {line: 5, column: 4},
keyword: "Background",
name: "background name",
description: " background description",
steps: [{type: :Step,
location: {line: 7, column: 5},
keyword: "* ",
text: "a step"}]},
{type: :Scenario,
tags: [{type: :Tag,
location: {line: 9, column: 3},
name: "@scenario_tag"}],
location: {line: 10, column: 3},
keyword: "Scenario",
name: "scenario name",
description: " scenario description",
steps: [{type: :Step,
location: {line: 12, column: 5},
keyword: "* ",
text: "a step with a table",
argument: {type: :DataTable,
location: {line: 13, column: 7},
rows: [{type: :TableRow,
location: {line: 13, column: 7},
cells: [{type: :TableCell,
location: {line: 13, column: 9},
value: "a table"}]}]}}]},
{type: :ScenarioOutline,
tags: [{type: :Tag,
location: {line: 15, column: 3},
name: "@outline_tag"}],
location: {line: 16, column: 3},
keyword: "Scenario Outline",
name: "outline name",
description: " outline description",
steps: [{type: :Step,
location: {line: 18, column: 5},
keyword: "* ",
text: "a step with a doc string",
argument: {type: :DocString,
location: {line: 19, column: 7},
contentType: "content_type",
content: " lots of text"}}],
examples: [{type: :Examples,
tags: [{type: :Tag,
location: {line: 23, column: 3},
name: "@example_tag"}],
location: {line: 24, column: 3},
keyword: "Examples",
name: "examples name",
description: " examples description",
tableHeader: {type: :TableRow,
location: {line: 26, column: 5},
cells: [{type: :TableCell,
location: {line: 26, column: 7},
value: "param"}]},
tableBody: [{type: :TableRow,
location: {line: 27, column: 5},
cells: [{type: :TableCell,
location: {line: 27, column: 7},
value: "value"}]}]}]}],
},
comments: [{type: :Comment,
location: {line: 22, column: 1},
text: " # Random file comment"}],
type: :GherkinDocument}
)
end
it "parses string feature" do
parser = Parser.new
ast = parser.parse("Feature: test")
expect(ast).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "test",
children: []
},
comments: [],
type: :GherkinDocument
})
end
it "parses io feature" do
parser = Parser.new
ast = parser.parse(StringIO.new("Feature: test"))
expect(ast).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "test",
children: []
},
comments: [],
type: :GherkinDocument
})
end
it "can parse multiple features" do
parser = Parser.new
ast1 = parser.parse(TokenScanner.new("Feature: test"))
ast2 = parser.parse(TokenScanner.new("Feature: test2"))
expect(ast1).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "test",
children: []
},
comments: [],
type: :GherkinDocument
})
expect(ast2).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "test2",
children: []
},
comments: [],
type: :GherkinDocument
})
end
it "can parse feature after parse error" do
parser = Parser.new
matcher = TokenMatcher.new
expect { parser.parse(TokenScanner.new("# a comment\n" +
"Feature: Foo\n" +
" Scenario: Bar\n" +
" Given x\n" +
" ```\n" +
" unclosed docstring\n"),
matcher)
}.to raise_error(ParserError)
ast = parser.parse(TokenScanner.new("Feature: Foo\n" +
" Scenario: Bar\n" +
" Given x\n" +
' """' + "\n" +
" closed docstring\n" +
' """' + "\n"),
matcher)
expect(ast).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "en",
keyword: "Feature",
name: "Foo",
children: [{
:type=>:Scenario,
:tags=>[],
:location=>{:line=>2, :column=>3},
:keyword=>"Scenario",
:name=>"Bar",
:steps=>[{
:type=>:Step,
:location=>{:line=>3, :column=>5},
:keyword=>"Given ",
:text=>"x",
:argument=>{:type=>:DocString,
:location=>{:line=>4, :column=>7},
:content=>"closed docstring"}}]}]
},
comments: [],
type: :GherkinDocument
})
end
it "can change the default language" do
parser = Parser.new
matcher = TokenMatcher.new("no")
scanner = TokenScanner.new("Egenskap: i18n support")
ast = parser.parse(scanner, matcher)
expect(ast).to eq({
feature: {
type: :Feature,
tags: [],
location: {line: 1, column: 1},
language: "no",
keyword: "Egenskap",
name: "i18n support",
children: []
},
comments: [],
type: :GherkinDocument
})
end
end
end
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