Functions
	_drawing (name)
Override	_low_mawp (float psi=LOW_MAWP_PSI)
	cfg ()
	he ()
	gn2_pair (cfg)
	tripped (cfg, he)
	tripped_bare (cfg, he)
	test_recording_the_network_moves_no_number (gn2_pair)
	test_the_network_block_is_the_contracts_and_its_rungs_telescope (gn2_pair)
	test_the_feed_diagnostics_build_from_the_recorded_network (gn2_pair, cfg)
	test_a_trip_ends_the_burn_where_it_happened (tripped)
	test_a_trip_is_unconverged_even_with_nothing_to_iterate (tripped_bare, tripped)
	test_the_diagnostics_read_a_tripped_burn (tripped)
	test_a_trip_is_a_fail_event_and_a_bad_limit_not_a_horizon (tripped)
	test_the_listing_marks_a_tripped_run (tripped)
	test_the_set_point_and_hardware_tools_do_not_use_a_tripped_burn (tripped, cfg, he, monkeypatch)
	test_the_sweep_leaves_a_tripped_case_out_of_the_swings_and_lists_it (tripped, cfg, he, monkeypatch)
	test_the_sweep_counts_a_flip_of_the_tank_that_runs_dry_first_only_when_it_strands_propellant (cfg, he, monkeypatch)
	test_the_legacy_optimiser_and_reconcile_refuse_a_tripped_burn (tripped, cfg, he, monkeypatch)
	_trip_now (session, vessel="FUT")
	test_a_trip_in_the_settle_raises_with_its_record (cfg, he, monkeypatch)
	test_a_trip_in_the_lead_in_fires_nothing_and_is_not_replayed (cfg, he, monkeypatch)

Variables
float	STUDY_LOCKUP_PSIA = 564.7
	feedtwin = pytest.importorskip("feedtwin", reason="lib/feedtwin is not installed")
	ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
	CFG = os.path.join(ROOT, "configs", "ethalox_6800N.yaml")
float	PSI = 6894.757293168361
float	ATM_PSI = 101325.0 / PSI
float	LOW_MAWP_PSI = 566.3
	pytestmark
	probes = dataclasses.replace(self.probes, network=False)

Detailed Description

Layer X records the whole feed network on every burn, and a vessel trip ends the burn.

Two lib/feedtwin features wired into ``engine/layerx/analysis.py`` (DATA-CONTRACT 2 and 4):

* **The network recorder** (``Probes(network=True)``, ``network_dict``). Recording only: a GN2 burn
  with it and one without give the same series and summary to the last bit, and the block it writes
  telescopes -- each side's rungs add up, step by step, to its first node minus the chamber.
* **The vessel trip** (``BurnEnd.tripped``, ``trip_record``). The AUDIT's case is a tank whose MAWP
  is restated below the pressure the burn reaches (AUDIT section 5, #1: Layer X then integrated the
  frozen frame to the 14 s horizon, 99,478 N s for a ~24,240 N s load). Here TK-FUEL is restated to
  566.3 psi on the helium drawing, which trips 0.575 s after Fire: the result must stop at the trip
  (series, burn time, impulse), say so (``tripped``, a ``fail`` event keyed ``trip``, ``converged``
  false, ``vessel_trip`` graded bad), and every tool that grades burns must count it as failing.
  The same with the AUDIT's own 600 psi, through the replay and the diagnostics, is in
  tests/test_layerx_integration_le4.py (LAYERX_GOLDEN=1).

Trips in the settle and in the lead-in cannot be reached from a drawing that passes preflight (the
T-0 lockup is checked against the MAWP), so those two paths are driven by tripping the session
directly, the way ``Session._check_limits`` does.

Function Documentation

◆ _drawing()

test_layerx_wire._drawing ( name )

protected

Definition at line 59 of file test_layerx_wire.py.

Referenced by gn2_pair(), and he().

◆ _low_mawp()

Override test_layerx_wire._low_mawp ( float psi = LOW_MAWP_PSI )

protected

Definition at line 63 of file test_layerx_wire.py.

Referenced by test_the_set_point_and_hardware_tools_do_not_use_a_tripped_burn(), tripped(), and tripped_bare().

◆ _trip_now()

test_layerx_wire._trip_now	(		session,
			vessel = "FUT" )

protected

Definition at line 373 of file test_layerx_wire.py.

Referenced by test_a_trip_in_the_lead_in_fires_nothing_and_is_not_replayed(), and test_a_trip_in_the_settle_raises_with_its_record().

◆ cfg()

test_layerx_wire.cfg ( )

Definition at line 69 of file test_layerx_wire.py.

◆ gn2_pair()

test_layerx_wire.gn2_pair ( cfg )

One GN2 burn as Layer X runs it (network recorded) and the same burn with the recorder off.

Definition at line 79 of file test_layerx_wire.py.

References _drawing().

◆ he()

test_layerx_wire.he ( )

Definition at line 74 of file test_layerx_wire.py.

References _drawing().

◆ test_a_trip_ends_the_burn_where_it_happened()

test_layerx_wire.test_a_trip_ends_the_burn_where_it_happened ( tripped )

Definition at line 191 of file test_layerx_wire.py.

◆ test_a_trip_in_the_lead_in_fires_nothing_and_is_not_replayed()

test_layerx_wire.test_a_trip_in_the_lead_in_fires_nothing_and_is_not_replayed	(	cfg,
		he,
		monkeypatch )

Definition at line 405 of file test_layerx_wire.py.

References _trip_now().

◆ test_a_trip_in_the_settle_raises_with_its_record()

test_layerx_wire.test_a_trip_in_the_settle_raises_with_its_record	(	cfg,
		he,
		monkeypatch )

Definition at line 381 of file test_layerx_wire.py.

References _trip_now().

◆ test_a_trip_is_a_fail_event_and_a_bad_limit_not_a_horizon()

test_layerx_wire.test_a_trip_is_a_fail_event_and_a_bad_limit_not_a_horizon ( tripped )

Definition at line 243 of file test_layerx_wire.py.

◆ test_a_trip_is_unconverged_even_with_nothing_to_iterate()

test_layerx_wire.test_a_trip_is_unconverged_even_with_nothing_to_iterate	(		tripped_bare,
			tripped )

Definition at line 224 of file test_layerx_wire.py.

◆ test_recording_the_network_moves_no_number()

test_layerx_wire.test_recording_the_network_moves_no_number ( gn2_pair )

Definition at line 127 of file test_layerx_wire.py.

◆ test_the_diagnostics_read_a_tripped_burn()

test_layerx_wire.test_the_diagnostics_read_a_tripped_burn ( tripped )

Definition at line 231 of file test_layerx_wire.py.

◆ test_the_feed_diagnostics_build_from_the_recorded_network()

test_layerx_wire.test_the_feed_diagnostics_build_from_the_recorded_network	(		gn2_pair,
			cfg )

Definition at line 168 of file test_layerx_wire.py.

◆ test_the_legacy_optimiser_and_reconcile_refuse_a_tripped_burn()

test_layerx_wire.test_the_legacy_optimiser_and_reconcile_refuse_a_tripped_burn	(	tripped,
		cfg,
		he,
		monkeypatch )

Definition at line 352 of file test_layerx_wire.py.

◆ test_the_listing_marks_a_tripped_run()

test_layerx_wire.test_the_listing_marks_a_tripped_run ( tripped )

Definition at line 259 of file test_layerx_wire.py.

◆ test_the_network_block_is_the_contracts_and_its_rungs_telescope()

test_layerx_wire.test_the_network_block_is_the_contracts_and_its_rungs_telescope ( gn2_pair )

Definition at line 136 of file test_layerx_wire.py.

◆ test_the_set_point_and_hardware_tools_do_not_use_a_tripped_burn()

test_layerx_wire.test_the_set_point_and_hardware_tools_do_not_use_a_tripped_burn	(	tripped,
		cfg,
		he,
		monkeypatch )

Definition at line 270 of file test_layerx_wire.py.

References _low_mawp().

◆ test_the_sweep_counts_a_flip_of_the_tank_that_runs_dry_first_only_when_it_strands_propellant()

test_layerx_wire.test_the_sweep_counts_a_flip_of_the_tank_that_runs_dry_first_only_when_it_strands_propellant	(	cfg,
		he,
		monkeypatch )

Sweep 20261102-122930-2c5489 on LE4 (3): the nominal emptied LOX first, two Cd cases emptied fuel
first with 0.003 kg of LOX left, and the page said '2 inputs break a limit: measure these first'. A
run grades which tank empties first as information and the propellant left over at 0.2 kg (limits.py);
the sweep grades a flip by the same residual.

Definition at line 324 of file test_layerx_wire.py.

◆ test_the_sweep_leaves_a_tripped_case_out_of_the_swings_and_lists_it()

test_layerx_wire.test_the_sweep_leaves_a_tripped_case_out_of_the_swings_and_lists_it	(	tripped,
		cfg,
		he,
		monkeypatch )

Definition at line 282 of file test_layerx_wire.py.

◆ tripped()

test_layerx_wire.tripped	(		cfg,
			he )

The early trip as the router runs a burn: erosion replay, flight asked for, diagnostics on.
The flight is a stub that counts its calls: a tripped burn must not be flown.

Definition at line 101 of file test_layerx_wire.py.

References _low_mawp().

◆ tripped_bare()

test_layerx_wire.tripped_bare	(		cfg,
			he )

The same trip as the sweep burns it: no replay, no flight, so no passes decide ``converged``.

Definition at line 118 of file test_layerx_wire.py.

References _low_mawp().

Variable Documentation

◆ ATM_PSI

float test_layerx_wire.ATM_PSI = 101325.0 / PSI

Definition at line 47 of file test_layerx_wire.py.

◆ CFG

test_layerx_wire.CFG = os.path.join(ROOT, "configs", "ethalox_6800N.yaml")

Definition at line 45 of file test_layerx_wire.py.

◆ feedtwin

test_layerx_wire.feedtwin = pytest.importorskip("feedtwin", reason="lib/feedtwin is not installed")

Definition at line 37 of file test_layerx_wire.py.

◆ LOW_MAWP_PSI

float test_layerx_wire.LOW_MAWP_PSI = 566.3

Definition at line 51 of file test_layerx_wire.py.

◆ probes

test_layerx_wire.probes = dataclasses.replace(self.probes, network=False)

Definition at line 91 of file test_layerx_wire.py.

◆ PSI

float test_layerx_wire.PSI = 6894.757293168361

Definition at line 46 of file test_layerx_wire.py.

◆ pytestmark

test_layerx_wire.pytestmark

Initial value:

=  pytest.mark.skipif(
    not (shipped_drawings_dir() / "copv_study_he.json").is_file()
    or not (shipped_drawings_dir() / "copv_study_gn2.json").is_file(),
    reason="feed-twin's shipped drawings are not next to this checkout")

Definition at line 53 of file test_layerx_wire.py.

◆ ROOT

test_layerx_wire.ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

Definition at line 44 of file test_layerx_wire.py.

◆ STUDY_LOCKUP_PSIA

float test_layerx_wire.STUDY_LOCKUP_PSIA = 564.7

Definition at line 33 of file test_layerx_wire.py.

Functions

Variables

Detailed Description

Function Documentation

◆ _drawing()

◆ _low_mawp()

◆ _trip_now()

◆ cfg()

◆ gn2_pair()

◆ he()

◆ test_a_trip_ends_the_burn_where_it_happened()

◆ test_a_trip_in_the_lead_in_fires_nothing_and_is_not_replayed()

◆ test_a_trip_in_the_settle_raises_with_its_record()

◆ test_a_trip_is_a_fail_event_and_a_bad_limit_not_a_horizon()

◆ test_a_trip_is_unconverged_even_with_nothing_to_iterate()

◆ test_recording_the_network_moves_no_number()

◆ test_the_diagnostics_read_a_tripped_burn()

◆ test_the_feed_diagnostics_build_from_the_recorded_network()

◆ test_the_legacy_optimiser_and_reconcile_refuse_a_tripped_burn()

◆ test_the_listing_marks_a_tripped_run()

◆ test_the_network_block_is_the_contracts_and_its_rungs_telescope()

◆ test_the_set_point_and_hardware_tools_do_not_use_a_tripped_burn()

◆ test_the_sweep_counts_a_flip_of_the_tank_that_runs_dry_first_only_when_it_strands_propellant()

◆ test_the_sweep_leaves_a_tripped_case_out_of_the_swings_and_lists_it()

◆ tripped()

◆ tripped_bare()

Variable Documentation

◆ ATM_PSI

◆ CFG

◆ feedtwin

◆ LOW_MAWP_PSI

◆ probes

◆ PSI

◆ pytestmark

◆ ROOT

◆ STUDY_LOCKUP_PSIA