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require 'cases/helper'
require 'models/topic'
module ActiveRecord
class BindParameterTest < ActiveRecord::TestCase
fixtures :topics
class LogListener
attr_accessor :calls
def initialize
@calls = []
end
def call(*args)
calls << args
end
end
def setup
super
@connection = ActiveRecord::Base.connection
@listener = LogListener.new
@pk = Topic.columns.find { |c| c.primary }
ActiveSupport::Notifications.subscribe('sql.active_record', @listener)
end
def teardown
ActiveSupport::Notifications.unsubscribe(@listener)
end
def test_binds_are_logged
return skip_bind_parameter_test unless supports_statement_cache?
sub = @connection.substitute_at(@pk, 0)
binds = [[@pk, 1]]
sql = "select * from topics where id = #{sub}"
@connection.exec_query(sql, 'SQL', binds)
message = @listener.calls.find { |args| args[4][:sql] == sql }
assert_equal binds, message[4][:binds]
end
def test_find_one_uses_binds
return skip_bind_parameter_test unless supports_statement_cache?
Topic.find(1)
binds = [[@pk, 1]]
message = @listener.calls.find { |args| args[4][:binds] == binds }
assert message, 'expected a message with binds'
end
def test_logs_bind_vars
return skip_bind_parameter_test unless supports_statement_cache?
pk = Topic.columns.find { |x| x.primary }
payload = {
:name => 'SQL',
:sql => 'select * from topics where id = ?',
:binds => [[pk, 10]]
}
event = ActiveSupport::Notifications::Event.new(
'foo',
Time.now,
Time.now,
123,
payload)
logger = Class.new(ActiveRecord::LogSubscriber) {
attr_reader :debugs
def initialize
super
@debugs = []
end
def debug str
@debugs << str
end
}.new
logger.sql event
assert_match([[pk.name, 10]].inspect, logger.debugs.first)
end
private
def skip_bind_parameter_test
skip('prepared statement caching is not supported')
end
def supports_statement_cache?
@connection.supports_statement_cache?
end
end
end
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