require 'test/unit' $:.unshift File.expand_path('../../../lib', __FILE__) require 'coderay' class ExamplesTest < Test::Unit::TestCase def normalize_html html html.gsub(''', "'").gsub('"', '"') end def test_examples # output as HTML div (using inline CSS styles) div = CodeRay.scan('puts "Hello, world!"', :ruby).div assert_equal <<-DIV, normalize_html(div)

puts "Hello, world!"

DIV # ...with line numbers div = CodeRay.scan(<<-CODE.chomp, :ruby).div(:line_numbers => :table) 5.times do puts 'Hello, world!' end CODE assert_equal <<-DIV, normalize_html(div)

1
2
3

5.times do
  puts 'Hello, world!'
end

DIV # output as standalone HTML page (using CSS classes) page = CodeRay.scan('puts "Hello, world!"', :ruby).page assert_match <<-PAGE, normalize_html(page)

1	puts "Hello, world!"

PAGE # keep scanned tokens for later use tokens = CodeRay.scan('{ "just": "an", "example": 42 }', :json) assert_kind_of CodeRay::TokensProxy, tokens assert_equal ["{", :operator, " ", :space, :begin_group, :key, "\"", :delimiter, "just", :content, "\"", :delimiter, :end_group, :key, ":", :operator, " ", :space, :begin_group, :string, "\"", :delimiter, "an", :content, "\"", :delimiter, :end_group, :string, ",", :operator, " ", :space, :begin_group, :key, "\"", :delimiter, "example", :content, "\"", :delimiter, :end_group, :key, ":", :operator, " ", :space, "42", :integer, " ", :space, "}", :operator], tokens.tokens # produce a token statistic assert_equal <<-STATISTIC, tokens.statistic Code Statistics Tokens 26 Non-Whitespace 15 Bytes Total 31 Token Types (7): type count ratio size (average) ------------------------------------------------------------- TOTAL 26 100.00 % 1.2 delimiter 6 23.08 % 1.0 operator 5 19.23 % 1.0 space 5 19.23 % 1.0 key 4 15.38 % 0.0 :begin_group 3 11.54 % 0.0 :end_group 3 11.54 % 0.0 content 3 11.54 % 4.3 string 2 7.69 % 0.0 integer 1 3.85 % 2.0 STATISTIC # count the tokens assert_equal 26, tokens.count # produce a HTML div, but with CSS classes div = tokens.div(:css => :class) assert_equal <<-DIV, normalize_html(div)

{ "just": "an", "example": 42 }

DIV # highlight a file (HTML div); guess the file type base on the extension assert_equal :ruby, CodeRay::FileType[__FILE__] # get a new scanner for Python python_scanner = CodeRay.scanner :python assert_kind_of CodeRay::Scanners::Python, python_scanner # get a new encoder for terminal terminal_encoder = CodeRay.encoder :term assert_kind_of CodeRay::Encoders::Terminal, terminal_encoder # scanning into tokens tokens = python_scanner.tokenize 'import this; # The Zen of Python' assert_equal ["import", :keyword, " ", :space, "this", :include, ";", :operator, " ", :space, "# The Zen of Python", :comment], tokens # format the tokens term = terminal_encoder.encode_tokens(tokens) assert_equal "\e[32mimport\e[0m \e[31mthis\e[0m; \e[1;30m# The Zen of Python\e[0m", term # re-using scanner and encoder ruby_highlighter = CodeRay::Duo[:ruby, :div] div = ruby_highlighter.encode('puts "Hello, world!"') assert_equal <<-DIV, normalize_html(div)

puts "Hello, world!"

DIV end end