131 lines
5.4 KiB
Ruby
131 lines
5.4 KiB
Ruby
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require 'test/unit'
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$:.unshift File.expand_path('../../../lib', __FILE__)
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require 'coderay'
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class ExamplesTest < Test::Unit::TestCase
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def test_examples
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# output as HTML div (using inline CSS styles)
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div = CodeRay.scan('puts "Hello, world!"', :ruby).div
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assert_equal <<-DIV, div
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<div class="CodeRay">
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<div class="code"><pre>puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">"</span><span style="color:#D20">Hello, world!</span><span style="color:#710">"</span></span></pre></div>
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</div>
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DIV
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# ...with line numbers
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div = CodeRay.scan(<<-CODE.chomp, :ruby).div(:line_numbers => :table)
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5.times do
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puts 'Hello, world!'
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end
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CODE
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assert_equal <<-DIV, div
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<table class="CodeRay"><tr>
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<td class="line-numbers" title="double click to toggle" ondblclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre><a href="#n1" name="n1">1</a>
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<a href="#n2" name="n2">2</a>
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<a href="#n3" name="n3">3</a>
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</pre></td>
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<td class="code"><pre><span style="color:#00D">5</span>.times <span style="color:#080;font-weight:bold">do</span>
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puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">'</span><span style="color:#D20">Hello, world!</span><span style="color:#710">'</span></span>
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<span style="color:#080;font-weight:bold">end</span></pre></td>
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</tr></table>
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DIV
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# output as standalone HTML page (using CSS classes)
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page = CodeRay.scan('puts "Hello, world!"', :ruby).page
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assert page[<<-PAGE]
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<body style="background-color: white;">
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<table class="CodeRay"><tr>
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<td class="line-numbers" title="double click to toggle" ondblclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre>
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</pre></td>
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<td class="code"><pre>puts <span class="string"><span class="delimiter">"</span><span class="content">Hello, world!</span><span class="delimiter">"</span></span></pre></td>
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</tr></table>
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</body>
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PAGE
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# keep scanned tokens for later use
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tokens = CodeRay.scan('{ "just": "an", "example": 42 }', :json)
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assert_kind_of CodeRay::TokensProxy, tokens
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assert_equal ["{", :operator, " ", :space, :begin_group, :key,
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"\"", :delimiter, "just", :content, "\"", :delimiter,
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:end_group, :key, ":", :operator, " ", :space,
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:begin_group, :string, "\"", :delimiter, "an", :content,
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"\"", :delimiter, :end_group, :string, ",", :operator,
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" ", :space, :begin_group, :key, "\"", :delimiter,
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"example", :content, "\"", :delimiter, :end_group, :key,
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":", :operator, " ", :space, "42", :integer,
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" ", :space, "}", :operator], tokens.tokens
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# produce a token statistic
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assert_equal <<-STATISTIC, tokens.statistic
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Code Statistics
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Tokens 26
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Non-Whitespace 15
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Bytes Total 31
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Token Types (7):
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type count ratio size (average)
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-------------------------------------------------------------
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TOTAL 26 100.00 % 1.2
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delimiter 6 23.08 % 1.0
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operator 5 19.23 % 1.0
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space 5 19.23 % 1.0
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key 4 15.38 % 0.0
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:begin_group 3 11.54 % 0.0
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:end_group 3 11.54 % 0.0
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content 3 11.54 % 4.3
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string 2 7.69 % 0.0
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integer 1 3.85 % 2.0
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STATISTIC
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# count the tokens
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assert_equal 26, tokens.count
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# produce a HTML div, but with CSS classes
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div = tokens.div(:css => :class)
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assert_equal <<-DIV, div
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<div class="CodeRay">
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<div class="code"><pre>{ <span class="key"><span class="delimiter">"</span><span class="content">just</span><span class="delimiter">"</span></span>: <span class="string"><span class="delimiter">"</span><span class="content">an</span><span class="delimiter">"</span></span>, <span class="key"><span class="delimiter">"</span><span class="content">example</span><span class="delimiter">"</span></span>: <span class="integer">42</span> }</pre></div>
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</div>
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DIV
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# highlight a file (HTML div); guess the file type base on the extension
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require 'coderay/helpers/file_type'
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assert_equal :ruby, CodeRay::FileType[__FILE__]
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# get a new scanner for Python
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python_scanner = CodeRay.scanner :python
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assert_kind_of CodeRay::Scanners::Python, python_scanner
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# get a new encoder for terminal
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terminal_encoder = CodeRay.encoder :term
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assert_kind_of CodeRay::Encoders::Terminal, terminal_encoder
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# scanning into tokens
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tokens = python_scanner.tokenize 'import this; # The Zen of Python'
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assert_equal ["import", :keyword, " ", :space, "this", :include,
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";", :operator, " ", :space, "# The Zen of Python", :comment], tokens
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# format the tokens
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term = terminal_encoder.encode_tokens(tokens)
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assert_equal "\e[1;31mimport\e[0m \e[33mthis\e[0m; \e[37m# The Zen of Python\e[0m", term
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# re-using scanner and encoder
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ruby_highlighter = CodeRay::Duo[:ruby, :div]
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div = ruby_highlighter.encode('puts "Hello, world!"')
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assert_equal <<-DIV, div
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<div class="CodeRay">
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<div class="code"><pre>puts <span style="background-color:hsla(0,100%,50%,0.05)"><span style="color:#710">"</span><span style="color:#D20">Hello, world!</span><span style="color:#710">"</span></span></pre></div>
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</div>
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DIV
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end
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end
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