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

  
puts "Hello, world!"





    PAGE
    
    # keep scanned tokens for later use
    tokens = CodeRay.scan('{ "just": "an", "example": 42 }', :json)
    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

    # 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  # => 26
    
    # produce a HTML div, but with CSS classes
    div = tokens.div(:css => :class)
    assert_equal <<-DIV, div


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



    DIV
    
    # highlight a file (HTML div); guess the file type base on the extension
    require 'coderay/helpers/file_type'
    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[1;31mimport\e[0m \e[33mthis\e[0m;  \e[37m# 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, div


  
puts "Hello, world!"



    DIV
  end
  
end