Current File : //usr/local/lib/ruby/gems/2.5/gems/sqlite3-1.3.13/test/test_collation.rb
# -*- coding: utf-8 -*-
require 'helper'
module SQLite3
class TestCollation < SQLite3::TestCase
class Comparator
attr_reader :calls
def initialize
@calls = []
end
def compare left, right
@calls << [left, right]
left <=> right
end
end
def setup
@db = SQLite3::Database.new(':memory:')
@create = "create table ex(id int, data string)"
@db.execute(@create);
[ [1, 'hello'], [2, 'world'] ].each do |vals|
@db.execute('insert into ex (id, data) VALUES (?, ?)', vals)
end
end
def test_custom_collation
comparator = Comparator.new
@db.collation 'foo', comparator
assert_equal comparator, @db.collations['foo']
@db.execute('select data from ex order by 1 collate foo')
assert_equal 1, comparator.calls.length
end
def test_remove_collation
comparator = Comparator.new
@db.collation 'foo', comparator
@db.collation 'foo', nil
assert_nil @db.collations['foo']
assert_raises(SQLite3::SQLException) do
@db.execute('select data from ex order by 1 collate foo')
end
end
if RUBY_VERSION >= '1.9.1'
def test_encoding
comparator = Comparator.new
@db.collation 'foo', comparator
@db.execute('select data from ex order by 1 collate foo')
a, b = *comparator.calls.first
assert_equal Encoding.find('UTF-8'), a.encoding
assert_equal Encoding.find('UTF-8'), b.encoding
end
def test_encoding_default_internal
warn_before = $-w
$-w = false
before_enc = Encoding.default_internal
Encoding.default_internal = 'EUC-JP'
comparator = Comparator.new
@db.collation 'foo', comparator
@db.execute('select data from ex order by 1 collate foo')
a, b = *comparator.calls.first
assert_equal Encoding.find('EUC-JP'), a.encoding
assert_equal Encoding.find('EUC-JP'), b.encoding
ensure
Encoding.default_internal = before_enc
$-w = warn_before
end
end
end
end
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