added common.py

tests/common.py

@@ -0,0 +1,59 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+def ok_(a, s=None):
+    if s is None:
+        assert a
+    else:
+        assert a, s
+
+def eq_(a, b, s=None):
+    if s is None:
+        assert a == b
+    else:
+        assert a == b, s
+
+def neq_(a, b, s=None):
+    if s is None:
+        assert a != b
+    else:
+        assert a != b, s
+
+def gt_(a, b, s=None):
+    if s is None:
+        assert a > b
+    else:
+        assert a > b, s
+
+def lt_(a, b, s=None):
+    if s is None:
+        assert a < b
+    else:
+        assert a < b, s
+
+def gte_(a, b, s=None):
+    if s is None:
+        assert a >= b
+    else:
+        assert a >= b, s
+
+def lte_(a, b, s=None):
+    if s is None:
+        assert a <= b
+    else:
+        assert a <= b, s
+
+def almost_eq_(a, b, tol=1e-6, s=None):
+    if s is None:
+        assert abs(a - b) < tol
+    else:
+        assert abs(a - b) < tol, s