add tests for ot.uils

Author: rflamary

test/test_utils.py

@@ -7,6 +7,7 @@
 
 import ot
 import numpy as np
+import sys
 
 
 def test_parmap():
@@ -123,3 +124,79 @@ def test_clean_zeros():
 
     assert len(a) == n - nz
     assert len(b) == n - nz2
+
+
+def test_cost_normalization():
+
+    C = np.random.rand(10, 10)
+
+    # does nothing
+    M0 = ot.utils.cost_normalization(C)
+    np.testing.assert_allclose(C, M0)
+
+    M = ot.utils.cost_normalization(C, 'median')
+    np.testing.assert_allclose(np.median(M), 1)
+
+    M = ot.utils.cost_normalization(C, 'max')
+    np.testing.assert_allclose(M.max(), 1)
+
+    M = ot.utils.cost_normalization(C, 'log')
+    np.testing.assert_allclose(M.max(), np.log(1 + C).max())
+
+    M = ot.utils.cost_normalization(C, 'loglog')
+    np.testing.assert_allclose(M.max(), np.log(1 + np.log(1 + C)).max())
+
+
+def test_check_params():
+
+    res1 = ot.utils.check_params(first='OK', second=20)
+    assert res1 is True
+
+    res0 = ot.utils.check_params(first='OK', second=None)
+    assert res0 is False
+
+
+def test_deprecated_func():
+
+    @ot.utils.deprecated('deprecated text for fun')
+    def fun():
+        pass
+
+    def fun2():
+        pass
+
+    @ot.utils.deprecated('deprecated text for class')
+    class Class():
+        pass
+
+    if sys.version_info < (3, 5):
+        print('Not tested')
+    else:
+        assert ot.utils._is_deprecated(fun) is True
+
+        assert ot.utils._is_deprecated(fun2) is False
+
+
+def test_BaseEstimator():
+
+    class Class(ot.utils.BaseEstimator):
+
+        def __init__(self, first='spam', second='eggs'):
+
+            self.first = first
+            self.second = second
+
+    cl = Class()
+
+    names = cl._get_param_names()
+    assert 'first' in names
+    assert 'second' in names
+
+    params = cl.get_params()
+    assert 'first' in params
+    assert 'second' in params
+
+    params['first'] = 'spam again'
+    cl.set_params(**params)
+
+    assert cl.first == 'spam again'