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require "cases/helper"
module ActiveRecord
class PostgresqlConnectionTest < ActiveRecord::TestCase
class NonExistentTable < ActiveRecord::Base
end
def setup
super
@connection = ActiveRecord::Base.connection
@connection.extend(LogIntercepter)
@connection.intercepted = true
end
def teardown
@connection.intercepted = false
@connection.logged = []
end
def test_encoding
assert_not_nil @connection.encoding
end
def test_collation
assert_not_nil @connection.collation
end
def test_ctype
assert_not_nil @connection.ctype
end
def test_default_client_min_messages
assert_equal "warning", @connection.client_min_messages
end
# Ensure, we can set connection params using the example of Generic
# Query Optimizer (geqo). It is 'on' per default.
def test_connection_options
params = ActiveRecord::Base.connection_config.dup
params[:options] = "-c geqo=off"
NonExistentTable.establish_connection(params)
# Verify the connection param has been applied.
expect = NonExistentTable.connection.query('show geqo').first.first
assert_equal 'off', expect
end
def test_tables_logs_name
@connection.tables('hello')
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_indexes_logs_name
@connection.indexes('items', 'hello')
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_table_exists_logs_name
@connection.table_exists?('items')
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_table_alias_length_logs_name
@connection.instance_variable_set("@table_alias_length", nil)
@connection.table_alias_length
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_current_database_logs_name
@connection.current_database
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_encoding_logs_name
@connection.encoding
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_schema_names_logs_name
@connection.schema_names
assert_equal 'SCHEMA', @connection.logged[0][1]
end
def test_reconnection_after_simulated_disconnection_with_verify
assert @connection.active?
original_connection_pid = @connection.query('select pg_backend_pid()')
# Fail with bad connection on next query attempt.
raw_connection = @connection.raw_connection
raw_connection_class = class << raw_connection ; self ; end
raw_connection_class.class_eval <<-CODE, __FILE__, __LINE__ + 1
def query_fake(*args)
if !( @called ||= false )
self.stubs(:status).returns(PGconn::CONNECTION_BAD)
@called = true
raise PGError
else
self.unstub(:status)
query_unfake(*args)
end
end
alias query_unfake query
alias query query_fake
CODE
begin
@connection.verify!
new_connection_pid = @connection.query('select pg_backend_pid()')
ensure
raw_connection_class.class_eval <<-CODE
alias query query_unfake
undef query_fake
CODE
end
assert_not_equal original_connection_pid, new_connection_pid, "Should have a new underlying connection pid"
end
# Must have with_manual_interventions set to true for this
# test to run.
# When prompted, restart the PostgreSQL server with the
# "-m fast" option or kill the individual connection assuming
# you know the incantation to do that.
# To restart PostgreSQL 9.1 on OS X, installed via MacPorts, ...
# sudo su postgres -c "pg_ctl restart -D /opt/local/var/db/postgresql91/defaultdb/ -m fast"
def test_reconnection_after_actual_disconnection_with_verify
skip "with_manual_interventions is false in configuration" unless ARTest.config['with_manual_interventions']
original_connection_pid = @connection.query('select pg_backend_pid()')
# Sanity check.
assert @connection.active?
puts 'Kill the connection now (e.g. by restarting the PostgreSQL ' +
'server with the "-m fast" option) and then press enter.'
$stdin.gets
@connection.verify!
assert @connection.active?
# If we get no exception here, then either we re-connected successfully, or
# we never actually got disconnected.
new_connection_pid = @connection.query('select pg_backend_pid()')
assert_not_equal original_connection_pid, new_connection_pid,
"umm -- looks like you didn't break the connection, because we're still " +
"successfully querying with the same connection pid."
# Repair all fixture connections so other tests won't break.
@fixture_connections.each do |c|
c.verify!
end
end
end
end
|
