Move common ctest fixtures into conftest.py

tardis/montecarlo/tests/conftest.py

@@ -0,0 +1,141 @@
+import os
+import pytest
+
+from ctypes import (
+        CDLL,
+        byref,
+        c_int64,
+        c_double,
+        c_ulong,
+        )
+
+from tardis import __path__ as path
+from tardis.montecarlo.struct import (
+    RPacket, StorageModel, RKState,
+    TARDIS_PACKET_STATUS_IN_PROCESS,
+    CONTINUUM_OFF,
+    BoundFreeTreatment
+)
+
+
+# Wrap the shared object containing C methods, which are tested here.
+@pytest.fixture(scope='session')
+def clib():
+    return CDLL(os.path.join(path[0], 'montecarlo', 'montecarlo.so'))
+
+
+@pytest.fixture(scope="function")
+def packet():
+    """Fixture to return `RPacket` object with default params initialized."""
+    return RPacket(
+        nu=0.4,
+        mu=0.3,
+        energy=0.9,
+        r=7.5e14,
+        tau_event=2.9e13,
+        nu_line=0.2,
+        current_shell_id=0,
+        next_line_id=1,
+        last_line=0,
+        close_line=0,
+        current_continuum_id=1,
+        virtual_packet_flag=1,
+        virtual_packet=0,
+        next_shell_id=1,
+        status=TARDIS_PACKET_STATUS_IN_PROCESS,
+        id=0,
+        chi_cont=6.652486e-16,
+        chi_bf_tmp_partial=(c_double * 2)(),
+        compute_chi_bf=True
+    )
+
+
+@pytest.fixture(scope="function")
+def model():
+    """
+    Fixture to return `StorageModel` object with default params initialized.
+    """
+    return StorageModel(
+        last_line_interaction_in_id=(c_int64 * 2)(*([0] * 2)),
+        last_line_interaction_shell_id=(c_int64 * 2)(*([0] * 2)),
+        last_interaction_type=(c_int64 * 2)(*([2])),
+        last_interaction_out_type=(c_int64 * 1)(*([0])),
+
+        no_of_shells=2,
+
+        r_inner=(c_double * 2)(*[6.912e14, 8.64e14]),
+        r_outer=(c_double * 2)(*[8.64e14, 1.0368e15]),
+
+        time_explosion=5.2e7,
+        inverse_time_explosion=1 / 5.2e7,
+
+        electron_densities=(c_double * 2)(*[1.0e9] * 2),
+        inverse_electron_densities=(c_double * 2)(*[1.0e-9] * 2),
+
+        line_list_nu=(c_double * 5)(*[
+            1.26318289e+16,
+            1.26318289e+16,
+            1.23357675e+16,
+            1.23357675e+16,
+            1.16961598e+16]),
+
+        continuum_list_nu=(c_double * 2)(*([1.e13] * 2)),
+
+        line_lists_tau_sobolevs=(c_double * 1000)(*([1.e-5] * 1000)),
+        line_lists_j_blues=(c_double * 2)(*([1.e-10] * 2)),
+        line_lists_j_blues_nd=0,
+
+        # Init to an explicit array
+        line_lists_Edotlu=(c_double * 3)(*[0.0, 0.0, 1.0]),
+
+        no_of_lines=5,
+        no_of_edges=2,
+
+        line_interaction_id=0,
+        line2macro_level_upper=(c_int64 * 2)(*([0] * 2)),
+
+        js=(c_double * 2)(*([0.0] * 2)),
+        nubars=(c_double * 2)(*([0.0] * 2)),
+
+        spectrum_start_nu=1.e14,
+        spectrum_delta_nu=293796608840.0,
+        spectrum_end_nu=6.e15,
+
+        spectrum_virt_start_nu=1e14,
+        spectrum_virt_end_nu=6e15,
+        spectrum_virt_nu=(c_double * 20000)(*([0.0] * 20000)),
+
+        sigma_thomson=6.652486e-25,
+        inverse_sigma_thomson=1 / 6.652486e-25,
+
+        inner_boundary_albedo=0.0,
+        reflective_inner_boundary=0,
+
+        chi_ff_factor=(c_double * 2)(*([1.0] * 2)),
+        t_electrons=(c_double * 2)(*([1.0e4] * 2)),
+
+        l_pop=(c_double * 20000)(*([2.0] * 20000)),
+        l_pop_r=(c_double * 20000)(*([3.0] * 20000)),
+        cont_status=CONTINUUM_OFF,
+        bf_treatment=BoundFreeTreatment.LIN_INTERPOLATION.value,
+        ff_heating_estimator=(c_double * 2)(*([0.0] * 2)),
+        cont_edge2macro_level=(c_int64 * 6)(*([1] * 6)),
+    )
+
+
+@pytest.fixture(scope="function")
+def mt_state():
+    """Fixture to return `RKState` object with default params initialized."""
+    return RKState(
+        key=(c_ulong * 624)(*([0] * 624)),
+        pos=0,
+        has_gauss=0,
+        gauss=0.0
+    )
+
+
+@pytest.fixture(scope="function")
+def mt_state_seeded(clib, mt_state):
+    seed = 23111963
+    clib.rk_seed(seed, byref(mt_state))
+    return mt_state