some new features

.venv/lib/python3.12/site-packages/scipy/constants/tests/test_codata.py

@@ -0,0 +1,57 @@
+from scipy.constants import find, value, ConstantWarning, c, speed_of_light
+from numpy.testing import (assert_equal, assert_, assert_almost_equal,
+                           suppress_warnings)
+import scipy.constants._codata as _cd
+
+
+def test_find():
+    keys = find('weak mixing', disp=False)
+    assert_equal(keys, ['weak mixing angle'])
+
+    keys = find('qwertyuiop', disp=False)
+    assert_equal(keys, [])
+
+    keys = find('natural unit', disp=False)
+    assert_equal(keys, sorted(['natural unit of velocity',
+                                'natural unit of action',
+                                'natural unit of action in eV s',
+                                'natural unit of mass',
+                                'natural unit of energy',
+                                'natural unit of energy in MeV',
+                                'natural unit of momentum',
+                                'natural unit of momentum in MeV/c',
+                                'natural unit of length',
+                                'natural unit of time']))
+
+
+def test_basic_table_parse():
+    c_s = 'speed of light in vacuum'
+    assert_equal(value(c_s), c)
+    assert_equal(value(c_s), speed_of_light)
+
+
+def test_basic_lookup():
+    assert_equal('%d %s' % (_cd.c, _cd.unit('speed of light in vacuum')),
+                 '299792458 m s^-1')
+
+
+def test_find_all():
+    assert_(len(find(disp=False)) > 300)
+
+
+def test_find_single():
+    assert_equal(find('Wien freq', disp=False)[0],
+                 'Wien frequency displacement law constant')
+
+
+def test_2002_vs_2006():
+    assert_almost_equal(value('magn. flux quantum'),
+                        value('mag. flux quantum'))
+
+
+def test_exact_values():
+    # Check that updating stored values with exact ones worked.
+    with suppress_warnings() as sup:
+        sup.filter(ConstantWarning)
+        for key in _cd.exact_values:
+            assert_((_cd.exact_values[key][0] - value(key)) / value(key) == 0)