93 lines
2.5 KiB
Ruby
Executable file
93 lines
2.5 KiB
Ruby
Executable file
#!/usr/bin/env ruby
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require File.expand_path(File.dirname(__FILE__) + '/../test_helper')
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require 'diff'
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include Diff
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class DiffTest < Test::Unit::TestCase
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def test_init
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assert_nothing_raised {
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s = SequenceMatcher.new('private Thread currentThread;',
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'private volatile Thread currentThread;') { |x| x == ' ' }
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}
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end
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def test_matching_blocks
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s = SequenceMatcher.new 'abxcd', 'abcd'
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assert_equal [[0, 0, 2], [3, 2, 2], [5, 4, 0]], s.get_matching_blocks
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end
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def test_ratio
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s = SequenceMatcher.new 'abcd', 'bcde'
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assert_equal 0.75, s.ratio, 0.001
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assert_equal 0.75, s.quick_ratio, 0.001
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assert_equal 1.0, s.real_quick_ratio, 0.001
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end
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def test_longest_match
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s = SequenceMatcher.new(' abcd', 'abcd abcd')
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assert_equal [0, 4, 5], s.find_longest_match(0, 5, 0, 9)
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end
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def test_opcodes
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s = SequenceMatcher.new('qabxcd', 'abycdf')
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assert_equal(
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[
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[:delete, 0, 1, 0, 0],
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[:equal, 1, 3, 0, 2],
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[:replace, 3, 4, 2, 3],
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[:equal, 4, 6, 3, 5],
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[:insert, 6, 6, 5, 6]
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],
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s.get_opcodes)
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end
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def test_count_leading
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assert_equal 3, Diff.count_leading(' abc', ' ')
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end
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def test_html2list
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a = "here is the original text"
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assert_equal(
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['here ', 'is ', 'the ', 'original ', 'text'],
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HTMLDiff.html2list(a))
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end
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def test_html_diff
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a = 'this was the original string'
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b = 'this is the super string'
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assert_equal('this <del class="diffmod">was </del>' +
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'<ins class="diffmod">is </ins>the ' +
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'<del class="diffmod">original </del>' +
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'<ins class="diffmod">super </ins>string',
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HTMLDiff.diff(a, b))
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end
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def test_html_diff_with_multiple_paragraphs
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a = "<p>this was the original string</p>"
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b = "<p>this is</p>\r\n<p>the super string</p>\r\n<p>around the world</p>"
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assert_equal(
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"<p>this <del class=\"diffmod\">was </del>" +
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"<ins class=\"diffmod\">is</ins></p>\r\n<p>the " +
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"<del class=\"diffmod\">original </del>" +
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"<ins class=\"diffmod\">super </ins>string</p>\r\n" +
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"<p><ins class=\"diffins\">around the world</ins></p>",
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HTMLDiff.diff(a, b)
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)
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end
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# FIXME this test fails (ticket #67, http://dev.instiki.org/ticket/67)
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def test_html_diff_preserves_endlines_in_pre
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a = "<pre>\na\nb\nc\n</pre>"
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b = ''
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assert_equal(
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"<pre>\n<del class=\"diffdel\">a\nb\nc\n</del></pre>",
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HTMLDiff.diff(a, b))
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end
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end
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