positional args unittest in

Author: cosminbasca

graalpython/com.oracle.graal.python.test/src/tests/test_args.py

@@ -0,0 +1,61 @@
+# Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# The Universal Permissive License (UPL), Version 1.0
+#
+# Subject to the condition set forth below, permission is hereby granted to any
+# person obtaining a copy of this software, associated documentation and/or
+# data (collectively the "Software"), free of charge and under any and all
+# copyright rights in the Software, and any and all patent rights owned or
+# freely licensable by each licensor hereunder covering either (i) the
+# unmodified Software as contributed to or provided by such licensor, or (ii)
+# the Larger Works (as defined below), to deal in both
+#
+# (a) the Software, and
+#
+# (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
+# one is included with the Software each a "Larger Work" to which the Software
+# is contributed by such licensors),
+#
+# without restriction, including without limitation the rights to copy, create
+# derivative works of, display, perform, and distribute the Software and make,
+# use, sell, offer for sale, import, export, have made, and have sold the
+# Software and the Larger Work(s), and to sublicense the foregoing rights on
+# either these or other terms.
+#
+# This license is subject to the following condition:
+#
+# The above copyright notice and either this complete permission notice or at a
+# minimum a reference to the UPL must be included in all copies or substantial
+# portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+
+def assert_raises(err, fn, *args, **kwargs):
+    raised = False
+    try:
+        fn(*args, **kwargs)
+    except err:
+        raised = True
+    assert raised
+
+
+def test_positional_args():
+    def foo(a, b, c):
+        return a, b, c
+
+    assert foo(1, 2, 3) == (1, 2, 3)
+    assert foo(a=1, b=2, c=3) == (1, 2, 3)
+    assert foo(c=3, a=1, b=2) == (1, 2, 3)
+    assert foo(1, 2, c=3) == (1, 2, 3)
+    assert foo(1, b=2, c=3) == (1, 2, 3)
+    assert_raises(TypeError, foo, (1,), c=3)
+    assert_raises(SyntaxError, exec, 'foo(a=1, 2, 3)')
+    assert_raises(TypeError, foo, (1, 2), b=2)