improving test coverage for float precision variants in backends

tests/unit_tests/backends/test_collisions_methods.py

@@ -67,7 +67,12 @@ def test_pair_indices(i, idx, is_first_in_pair, gamma, expected):
             ((4, 5, 4.5, 3, 0.1), (0, 1, 2, 3, 4, 5), 5),
         ),
     )
-    def test_adaptive_sdm_end(backend_class, dt_left, cell_start, expected):
+    def test_adaptive_sdm_end(
+        backend_class, dt_left, cell_start, expected, double_precision
+    ):
+        if backend_class.__name__ == "Numba" and not double_precision:
+            pytest.skip()  # TODO #1144
+
         # Arrange
         backend = backend_class()
         dt_left = backend.Storage.from_ndarray(np.asarray(dt_left))
@@ -161,7 +166,11 @@ def test_scale_prob_for_adaptive_sdm_gamma(
         is_first_in_pair,
         expected_dt_left,
         expected_n_substep,
+        double_precision,
     ):
+        if backend_class.__name__ == "Numba" and not double_precision:
+            pytest.skip()  # TODO #1144
+
         # Arrange
         backend = backend_class()
         _gamma = backend.Storage.from_ndarray(np.asarray(gamma))
@@ -208,7 +217,10 @@ def test_scale_prob_for_adaptive_sdm_gamma(
         "backend_class, scheme",
         ((CPU, "counting_sort"), (CPU, "counting_sort_parallel"), (GPU, "default")),
     )
-    def test_cell_caretaker(backend_class, scheme):
+    def test_cell_caretaker(backend_class, scheme, double_precision):
+        if backend_class.__name__ == "Numba" and not double_precision:
+            pytest.skip()  # TODO #1144
+
         # Arrange
         backend = backend_class()
         idx = [0, 3, 2, 4]

tests/unit_tests/backends/test_freezing_methods.py

@@ -100,7 +100,7 @@ def test_freeze_singular(backend_class):
     # pylint: disable=too-many-locals
     def test_freeze_time_dependent(backend_class, double_precision, plot=False):
         if backend_class.__name__ == "Numba" and not double_precision:
-            pytest.skip()
+            pytest.skip()  # TODO #1144
 
         # Arrange
         seed = 44

tests/unit_tests/backends/test_moments_methods.py

@@ -15,7 +15,11 @@
         (0, 1, 1.5, 0),
     ],
 )
-def test_moments_range(backend_class, min_x, max_x, value, expected):
+# pylint: disable=too-many-arguments
+def test_moments_range(backend_class, min_x, max_x, value, expected, double_precision):
+    if backend_class.__name__ == "Numba" and not double_precision:
+        pytest.skip()  # TODO #1144
+
     # Arrange
     backend = backend_class(Formulae())
 

tests/unit_tests/backends/test_physics_methods.py

@@ -1,12 +1,16 @@
 # pylint: disable=missing-module-docstring,missing-class-docstring,missing-function-docstring
 import numpy as np
+import pytest
 
 from PySDM.physics import si
 
 
 class TestPhysicsMethods:  # pylint: disable=too-few-public-methods
     @staticmethod
-    def test_temperature_pressure_RH(backend_class):
+    def test_temperature_pressure_RH(backend_class, double_precision):
+        if backend_class.__name__ == "Numba" and not double_precision:
+            pytest.skip()  # TODO #1144
+
         # Arrange
         backend = backend_class()
         sut = backend.temperature_pressure_RH

tests/unit_tests/conftest.py

@@ -7,3 +7,8 @@
 @pytest.fixture(params=(CPU, GPU))
 def backend_class(request):
     return request.param
+
+
+@pytest.fixture(params=(True, False))
+def double_precision(request):
+    return request.param

tests/unit_tests/dynamics/test_relaxed_velocity.py

@@ -42,14 +42,19 @@ def constant_timescale_fixture(request):
     return request.param
 
 
-def test_small_timescale(default_attributes, constant_timescale, backend_class):
+def test_small_timescale(
+    default_attributes, constant_timescale, backend_class, double_precision
+):
     """
     When the fall velocity is initialized to 0 and relaxation is very quick,
     the velocity should quickly approach the terminal velocity
     """
+    if backend_class.__name__ == "Numba" and not double_precision:
+        pytest.skip()  # TODO #1144
 
     builder = Builder(
-        n_sd=len(default_attributes["multiplicity"]), backend=backend_class()
+        n_sd=len(default_attributes["multiplicity"]),
+        backend=backend_class(double_precision=double_precision),
     )
 
     builder.set_environment(Box(dt=1, dv=1))