test_planetEphemeris

test_planetEphemeris.test_module(show_plots, setRAN, setDEC, setLST, setRate)

Module Unit Test

test_planetEphemeris.test_zero_base_requires_local_body()

Verify that zeroBase rejects bodies owned by another instance.

Validation Test Description

A module configured with Earth and Moon selects Mars as its translational origin. Initialization must stop with a BasiliskError because Mars is not propagated by that module instance.

test_planetEphemeris.test_zero_base_translation()

Verify that zeroBase translates positions and velocities only.

Validation Test Description

Two identical modules propagate the same oriented bodies. One retains the default heliocentric origin while the other selects Earth as zeroBase. The relative outputs are compared with differences of the heliocentric outputs at three simulation times.

Test Parameter Discussion

Mixed-case "EaRtH" verifies case-insensitive body-name matching. The bodies use distinct orbits and attitudes so position, velocity, and orientation behavior are all observable.

Description of Variables Being Tested

The test checks PositionVector, VelocityVector, J20002Pfix, J20002Pfix_dot, computeOrient, and PlanetName.