[skip ci] Apply formatting changes

tests/test_core.py

@@ -11,34 +11,35 @@ def test_source():
     my_source = openmc.Source()
 
     # sets the location of the source to x=0 y=0 z=0
-    my_source.space = openmc.stats.Point((4.,5.,6.))
+    my_source.space = openmc.stats.Point((4.0, 5.0, 6.0))
 
     # sets the direction to isotropic
     my_source.angle = openmc.stats.Isotropic()
 
     # sets the energy distribution to 100% 14MeV neutrons
     my_source.energy = openmc.stats.Discrete([14e6], [1])
 
-    my_source.particle = 'neutron'
+    my_source.particle = "neutron"
 
     my_source = my_source
     return my_source
 
+
 @pytest.fixture
 def test_model():
     # initialises a new source object
     my_source = openmc.Source()
 
     # sets the location of the source to x=0 y=0 z=0
-    my_source.space = openmc.stats.Point((1.,2.,3.))
+    my_source.space = openmc.stats.Point((1.0, 2.0, 3.0))
 
     # sets the direction to isotropic
     my_source.angle = openmc.stats.Isotropic()
 
     # sets the energy distribution to 100% 14MeV neutrons
     my_source.energy = openmc.stats.Discrete([15e6], [1])
 
-    my_source.particle = 'photon'
+    my_source.particle = "photon"
 
     settings = openmc.Settings()
     settings.particles = 1
@@ -60,16 +61,17 @@ def test_source_sample_initial_particles(test_source):
     particles = test_source.sample_initial_particles(n_samples=42)
     for particle in particles:
         assert particle.E == 14e6
-        assert str(particle.particle) == 'neutron'
-        assert particle.r == (4.,5.,6.)
+        assert str(particle.particle) == "neutron"
+        assert particle.r == (4.0, 5.0, 6.0)
     assert len(particles) == 42
 
+
 def test_model_sample_initial_particles(test_model):
     particles = test_model.sample_initial_particles(n_samples=43)
     for particle in particles:
         assert particle.E == 15e6
-        assert str(particle.particle) == 'photon'
-        assert particle.r == (1.,2.,3.)
+        assert str(particle.particle) == "photon"
+        assert particle.r == (1.0, 2.0, 3.0)
     assert len(particles) == 43