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require_relative './helper'
class SpellCheckerTest < Test::Unit::TestCase
def test_spell_checker_corrects_mistypes
assert_spell 'foo', input: 'doo', dictionary: ['foo', 'fork']
assert_spell 'email', input: 'meail', dictionary: ['email', 'fail', 'eval']
assert_spell 'fail', input: 'fial', dictionary: ['email', 'fail', 'eval']
assert_spell 'fail', input: 'afil', dictionary: ['email', 'fail', 'eval']
assert_spell 'eval', input: 'eavl', dictionary: ['email', 'fail', 'eval']
assert_spell 'eval', input: 'veal', dictionary: ['email', 'fail', 'eval']
assert_spell 'sub!', input: 'suv!', dictionary: ['sub', 'gsub', 'sub!']
assert_spell 'sub', input: 'suv', dictionary: ['sub', 'gsub', 'sub!']
assert_spell %w(gsub! gsub), input: 'gsuv!', dictionary: %w(sub gsub gsub!)
assert_spell %w(sub! sub gsub!), input: 'ssub!', dictionary: %w(sub sub! gsub gsub!)
group_methods = %w(groups group_url groups_url group_path)
assert_spell 'groups', input: 'group', dictionary: group_methods
group_classes = %w(
GroupMembership
GroupMembershipPolicy
GroupMembershipDecorator
GroupMembershipSerializer
GroupHelper
Group
GroupMailer
NullGroupMembership
)
assert_spell 'GroupMembership', dictionary: group_classes, input: 'GroupMemberhip'
assert_spell 'GroupMembershipDecorator', dictionary: group_classes, input: 'GroupMemberhipDecorator'
names = %w(first_name_change first_name_changed? first_name_will_change!)
assert_spell names, input: 'first_name_change!', dictionary: names
assert_empty DidYouMean::SpellChecker.new(dictionary: ['proc']).correct('product_path')
assert_empty DidYouMean::SpellChecker.new(dictionary: ['fork']).correct('fooo')
end
def test_spell_checker_corrects_misspells
assert_spell 'descendants', input: 'dependents', dictionary: ['descendants']
assert_spell 'drag_to', input: 'drag', dictionary: ['drag_to']
assert_spell 'set_result_count', input: 'set_result', dictionary: ['set_result_count']
end
def test_spell_checker_sorts_results_by_simiarity
expected = %w(
name12345
name1234
name123
)
actual = DidYouMean::SpellChecker.new(dictionary: %w(
name12
name123
name1234
name12345
name123456
)).correct('name123456')
assert_equal expected, actual
end
def test_spell_checker_excludes_input_from_dictionary
assert_empty DidYouMean::SpellChecker.new(dictionary: ['input']).correct('input')
assert_empty DidYouMean::SpellChecker.new(dictionary: [:input]).correct('input')
assert_empty DidYouMean::SpellChecker.new(dictionary: ['input']).correct(:input)
end
private
def assert_spell(expected, input: , dictionary: )
corrections = DidYouMean::SpellChecker.new(dictionary: dictionary).correct(input)
assert_equal Array(expected), corrections, "Expected to suggest #{expected}, but got #{corrections.inspect}"
end
end
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