def test_stop_is_idempotent(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
self.dbms.initdb()
self.dbms.start()
self.dbms.stop()
self.dbms.stop()
self.dbms.stop()
assert self.dbms.is_running() is False
def test_is_running_tries_bogus(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
self.dbms.initdb()
with pytest.raises(ValueError):
self.dbms.is_running(-1)
with pytest.raises(ValueError):
self.dbms.is_running(-10)
with pytest.raises(ValueError):
self.dbms.is_running(0)
def dbms(self, request):
cls = request.cls
cls.port = UNUSED_PORT
cls.dbms = pgtools.PostgresServer(port=cls.port)
cls.dbms.initdb()
cls.dbms.start()
yield
cls.dbms.destroy()
del cls.dbms
def test_is_running(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
assert self.dbms.is_running() is False
self.dbms.initdb()
assert self.dbms.is_running() is False
self.dbms.start()
assert self.dbms.is_running() is True
self.dbms.stop()
assert self.dbms.is_running() is False
def test_pid_returns_None_when_not_running(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
assert self.dbms.pid is None
self.dbms.initdb()
assert self.dbms.pid is None
self.dbms.start()
assert self.dbms.pid is not None
os.kill(self.dbms.pid, 0)
self.dbms.stop()
assert self.dbms.pid is None
def test_pid(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
self.dbms.initdb()
self.dbms.start()
pid = self.dbms.pid
# Weak test -- just check to see whether such a process exists.
os.kill(pid, 0)
self.dbms.stop()
with pytest.raises(OSError):
os.kill(pid, 0)
def test_destroy_handles_deleted_directory(self):
self.dbms = pgtools.PostgresServer(host='localhost', port=UNUSED_PORT)
self.dbms.initdb()
# Reach under the covers and pre-emptively delete the directory.
# (But first, some checking to prevent hideously
# self-destructive acts.)
assert self.dbms.base_pathname is not None
assert self.dbms.base_pathname != ''
assert self.dbms.base_pathname != '.'
shutil.rmtree(self.dbms.base_pathname)
self.dbms.destroy()
def test_start_raises_NotInitializedError_when_uninitialized(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
with pytest.raises(pgtools.NotInitializedError):
self.dbms.start()
def test_start_ok(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
self.dbms.initdb()
self.dbms.start()
assert self.dbms.is_running() is True
def test_start_port_value_error(self):
self.dbms = pgtools.PostgresServer(port='BOGUS')
self.dbms.initdb()
errors = CalledProcessError, RuntimeError
with pytest.raises(errors):
self.dbms.start()
def test_start_port_out_of_range(self):
self.dbms = pgtools.PostgresServer(port=99999999)
self.dbms.initdb()
errors = CalledProcessError, RuntimeError
with pytest.raises(errors):
self.dbms.start()
def test_start_host_bogus(self):
# Hostnames aren't checked until the postgres server starts up
self.dbms = pgtools.PostgresServer(host='no.such.host.exists')
self.dbms.initdb()
with pytest.raises(RuntimeError):
self.dbms.start()
def test___init__ok(self):
self.dbms = pgtools.PostgresServer(host='localhost', port=UNUSED_PORT)
def test_initdb_ok(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT)
self.dbms.initdb()
def test_initdb_base_pathname_bogus(self):
self.dbms = pgtools.PostgresServer(port=UNUSED_PORT,
base_pathname='/n&^fX:d#f9')
with pytest.raises((OSError, IOError)):
self.dbms.initdb()
def test_destroy_is_idempotent(self):
self.dbms = pgtools.PostgresServer(host='localhost', port=UNUSED_PORT)
self.dbms.destroy()
self.dbms.destroy()
self.dbms.destroy()
def test___str__(self):
self.dbms = pgtools.PostgresServer(host='localhost', port=UNUSED_PORT)
assert str(self.dbms) == (
'PostgreSQL server at %s:%s (with storage at %s)' %
(self.dbms.host, self.dbms.port, self.dbms.base_pathname))
def test___repr__(self):
self.dbms = pgtools.PostgresServer(host='localhost', port=UNUSED_PORT)
assert repr(self.dbms) == (
'PostgresServer(host=localhost, port=%s, '
'base_pathname=%s, superuser=%s)' %
(self.dbms.port, self.dbms.base_pathname, self.dbms.superuser))
