BaseCscTestCase

class lsst.ts.hexrotcomm.BaseCscTestCase

Bases: BaseCscTestCase

A variant of salobj.BaseCscTestCase that captures all but the last controller state in make_csc.

Methods Summary

assert_next_sample(topic[, flush, timeout])	Wait for the next data sample for the specified topic, check specified fields for equality, and return the data.
assert_next_summary_state(state[, flush, ...])	Wait for and check the next summaryState event.
basic_make_csc(initial_state, config_dir, ...)	Make and return a CSC.
check_bad_commands([bad_commands, good_commands])	Check that bad commands fail.
check_bin_script(name, index, exe_name[, ...])	Test running the CSC command line script.
check_standard_state_transitions(...[, ...])	Test standard CSC state transitions.
make_csc([initial_state, config_dir, ...])	Create a CSC and remote and wait for them to start.
next_index()	Get the next SAL index.
run([result])	Set a random LSST_DDS_PARTITION_PREFIX and set LSST_SITE=test for every test.

Methods Documentation

async assert_next_sample(topic: ReadTopic, flush: bool = False, timeout: float = 60, **kwargs: Any) → BaseMsgType

Wait for the next data sample for the specified topic, check specified fields for equality, and return the data.

Parameters

topictopics.ReadTopic

Topic to read, e.g. remote.evt_logMessage.

flushbool, optional

Flush the read queue before waiting?

timeoutdouble, optional

Time limit for getting the data sample (sec).

kwargsdict

Dict of field_name: expected_value The specified fields will be checked for equality.

Returns

datatopic data type

The data read.

Raises

asyncio.TimeoutError

If no message is available within the specified time limit.

async assert_next_summary_state(state: State, flush: bool = False, timeout: float = 60, remote: lsst.ts.salobj.remote.Remote | None = None) → None

Wait for and check the next summaryState event.

Parameters

statelsst.ts.salobj.State or int

Desired summary state.

flushbool, optional

Flush the read queue before waiting?

timeoutfloat, optional

Time limit for getting the data sample (sec).

remoteRemote, optional

Remote to use; self.remote if None.

Raises

asyncio.TimeoutError

If summary state is not seen within the specified time limit.

abstract basic_make_csc(initial_state: lsst.ts.salobj.sal_enums.State | int, config_dir: str | pathlib.Path | None, simulation_mode: int, **kwargs: Any) → BaseCsc

Make and return a CSC.

Parameters

initial_statelsst.ts.salobj.State or int

The initial state of the CSC.

config_dirstr or pathlib.Path or None

Directory of configuration files, or None for the standard configuration directory (obtained from ConfigureCsc._get_default_config_dir).

simulation_modeint

Simulation mode.

kwargsdict

Extra keyword arguments, if needed.

async check_bad_commands(bad_commands: collections.abc.Sequence[str] | None = None, good_commands: collections.abc.Sequence[str] | None = None) → None

Check that bad commands fail.

Parameters

bad_commandsList`[`str] or None, optional

Names of bad commands to try, or None for all commands.

good_commandsList`[`str] or None, optional

Names of good commands to skip, or None to skip none.

Notes

If a command appears in both lists, it is considered a good command, so it is skipped.

async check_bin_script(name: str, index: int | None, exe_name: str, cmdline_args: list[str] = []) → None

Test running the CSC command line script.

Parameters

namestr

Name of SAL component, e.g. “MTRotator”

indexint or None

SAL index of component.

exe_namestr

Name of executable, e.g. “run_rotator.py”

cmdline_argsList [str]

Additional command-line arguments, such as “–simulate”.

async check_standard_state_transitions(enabled_commands: Sequence[str], skip_commands: collections.abc.Sequence[str] | None = None, override: str = '', timeout: float = 60) → None

Test standard CSC state transitions.

Parameters

enabled_commandsList [str]

List of CSC-specific commands that are valid in the enabled state. Need not include the standard commands, which are “disable” and “setLogLevel” (which is valid in any state).

skip_commandsList [str] or None, optional

List of commands to skip.

overridestr, optional

Configuration override file to apply when the CSC is taken from state State.STANDBY to State.DISABLED.

timeoutfloat, optional

Time limit for state transition commands (seconds).

Raises

asyncio.TimeoutError

If any state transition takes longer than the specified time limit.

Notes

timeout is only used for state transition commands that are expected to succceed. STD_TIMEOUT is used for things that should happen quickly:

• Commands that should fail, due to the CSC being in the wrong state.

• The summaryState event after each state transition:

make_csc(initial_state: State = State.STANDBY, config_dir: str | pathlib.Path | None = None, simulation_mode: int = 0, log_level: int | None = None, timeout: float = 60, **kwargs: dict[str, Any]) → BaseCsc

Create a CSC and remote and wait for them to start.

The csc is accessed as self.csc and the remote as self.remote.

This override reads and checks all but the last controllerState event during startup, in addition to the summaryState event.

Parameters

namestr

Name of SAL component.

initial_statelsst.ts.salobj.State or int, optional

The initial state of the CSC. Defaults to STANDBY.

config_dirstr, optional

Directory of configuration files, or None (the default) for the standard configuration directory (obtained from ConfigureCsc._get_default_config_dir).

simulation_modeint, optional

Simulation mode. Defaults to 0 because not all CSCs support simulation. However, tests of CSCs that support simulation will almost certainly want to set this nonzero.

log_levelint or None, optional

Logging level, such as logging.INFO. If None then do not set the log level, leaving the default behavior of SalInfo: increase the log level to INFO.

timeoutfloat

Time limit for the CSC to start (seconds).

**kwargsdict

Extra keyword arguments for basic_make_csc. For a configurable CSC this may include override, especially if initial_state is DISABLED or ENABLED.

Notes

Adds a logging.StreamHandler if one is not already present.

next_index() → int

Get the next SAL index.

run(result: Any = None) → None

Set a random LSST_DDS_PARTITION_PREFIX and set LSST_SITE=test for every test.

Unlike setUp, a user cannot forget to override this. (This is also a good place for context managers).