instiki/test/unit/diff_test.rb

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#!/bin/env ruby
require File.dirname(__FILE__) + '/../test_helper'
2005-01-15 21:26:54 +01:00
require 'diff'
include Diff
class DiffTest < Test::Unit::TestCase
def test_init
assert(1 == 1, "tests working")
assert_nothing_raised("object created") do
s = SequenceMatcher.new "private Thread currentThread;",
"private volatile Thread currentThread;",
proc { |x| x == ' ' }
end
end
def test_matching_blocks
s = SequenceMatcher.new "abxcd", "abcd"
assert(s.get_matching_blocks == [[0, 0, 2], [3, 2, 2], [5, 4, 0]],
"get_matching_blocks works")
end
def test_ratio
s = SequenceMatcher.new "abcd", "bcde"
assert(s.ratio == 0.75, "ratio works")
assert(s.quick_ratio == 0.75, "quick_ratio works")
assert(s.real_quick_ratio == 1.0, "real_quick_ratio works")
end
def test_longest_match
s = SequenceMatcher.new(" abcd", "abcd abcd")
assert(s.find_longest_match(0, 5, 0, 9) == [0, 4, 5],
"find_longest_match works")
s = SequenceMatcher.new()
end
def test_opcodes
s = SequenceMatcher.new("qabxcd", "abycdf")
assert(s.get_opcodes == [
[:delete, 0, 1, 0, 0],
[:equal, 1, 3, 0, 2],
[:replace, 3, 4, 2, 3],
[:equal, 4, 6, 3, 5],
[:insert, 6, 6, 5, 6]], "get_opcodes works")
end
def test_count_leading
assert(Diff.count_leading(' abc', ' ') == 3,
"count_leading works")
end
def test_html2list
a = "here is the original text"
#p HTMLDiff.html2list(a)
end
def test_html_diff
a = "this was the original string"
b = "this is the super string"
assert_equal 'this <del class="diffmod">was </del>' +
'<ins class="diffmod">is </ins>the ' +
'<del class="diffmod">original </del>' +
'<ins class="diffmod">super </ins>string',
HTMLDiff.diff(a, b)
end
def test_html_diff_with_multiple_paragraphs
a = "<p>this was the original string</p>"
b = "<p>this is</p>\r\n<p>the super string</p>\r\n<p>around the world</p>"
assert_equal(
"<p>this <del class=\"diffmod\">was </del>" +
"<ins class=\"diffmod\">is</ins></p>\r\n<p>the " +
"<del class=\"diffmod\">original </del>" +
"<ins class=\"diffmod\">super </ins>string</p>\r\n" +
"<p><ins class=\"diffins\">around the world</ins></p>",
HTMLDiff.diff(a, b)
)
end
end