Update test_spectrum.py

fix indentation and white spaces, change clearness to clearsky

pvlib/tests/test_spectrum.py

@@ -316,6 +316,7 @@ def test_spectral_factor_caballero_supplied_ambiguous():
         spectrum.spectral_factor_caballero(1, 1, 1, module_type=None,
                                            coefficients=None)
 
+
 @pytest.mark.parametrize("module_type,expected", [
     ('asi', np.array([1.15534029, 1.1123772, 1.08286684])),
     ('fs-2', np.array([1.0694323, 1.04948777, 1.03556288])),
@@ -328,43 +329,50 @@ def test_spectral_factor_pelland(module_type, expected):
     ams = np.array([1.0, 1.5, 2.0])
     kcs = np.array([0.4, 0.6, 0.8])
     out = spectrum.spectral_factor_pelland(ams, kcs,
-                                             module_type=module_type)
+                                           module_type=module_type)
     assert np.allclose(expected, out, atol=1e-3)
 
+
 def test_spectral_factor_pelland_supplied():
     # use the multisi coeffs
     coeffs = (
         0.9847, -0.05237, 0.03034)
     out = spectrum.spectral_factor_pelland(1.5, 0.8, coefficients=coeffs)
     expected = 1.00860641
     assert_allclose(out, expected, atol=1e-3)
-
+
+
 def test_spectral_factor_pelland_supplied_redundant():
     # Error when specifying both module_type and coefficients
     coeffs = (
         0.9847, -0.05237, 0.03034)
     with pytest.raises(ValueError):
         spectrum.spectral_factor_pelland(1.5, 0.8, module_type='multisi',
-                                           coefficients=coeffs)
+                                         coefficients=coeffs)
+
 
 def test_spectral_factor_pelland_supplied_ambiguous():
     # Error when specifying neither module_type nor coefficients
     with pytest.raises(ValueError):
         spectrum.spectral_factor_pelland(1.5, 0.8, module_type=None,
-                                           coefficients=None)
-
+                                         coefficients=None)
+
+
 def test_spectral_factor_pelland_low_airmass():
     with pytest.warns(UserWarning, match='Exceptionally low air mass'):
-        _ = spectrum.spectral_factor_pelland(0.1, 0.8, 'multisi')        
+        _ = spectrum.spectral_factor_pelland(0.1, 0.8, 'multisi')
+
 
 def test_spectral_factor_pelland_high_airmass():
     with pytest.warns(UserWarning, match='Exceptionally high air mass'):
         _ = spectrum.spectral_factor_pelland(12, 0.8, 'multisi')
-
-def test_spectral_factor_pelland_low_clearnessindex():
-    with pytest.raises(ValueError, match='Clearness index cannot be negative'):
-        _ = spectrum.spectral_factor_pelland(1.5, -0.8, 'multisi')        
 
-def test_spectral_factor_pelland_high_clearnessindex():
-    with pytest.raises(ValueError, match='Clearness index cannot be >1'):
+
+def test_spectral_factor_pelland_low_clearskyindex():
+    with pytest.raises(ValueError, match='Clearsky index cannot be negative'):
+        _ = spectrum.spectral_factor_pelland(1.5, -0.8, 'multisi')
+
+
+def test_spectral_factor_pelland_high_clearskysindex():
+    with pytest.raises(ValueError, match='Clearsky index cannot be >1'):
         _ = spectrum.spectral_factor_pelland(1.5, 1.8, 'multisi')