/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.giraph.jython;
import org.junit.Test;
import org.python.core.PyClass;
import org.python.core.PyDictionary;
import org.python.core.PyInteger;
import org.python.core.PyList;
import org.python.core.PyObject;
import org.python.util.PythonInterpreter;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class TestJythonBasic {
private static final double DELTA = 0.0000001;
@Test
public void testBasic() {
String jython =
"class Foo:\n" +
" def __init__(self):\n" +
" self.map = {\"32\": 32, \"4.3\": 4.3}\n" +
" self.list = [ 2, 9, 11 ]\n" +
" self.ival = 17\n" +
"\n" +
"def get_map(foo):\n" +
" return foo.map\n" +
"\n" +
"def get_list(foo):\n" +
" return foo.list\n" +
"\n" +
"def get_ival(foo):\n" +
" return foo.ival\n" +
"";
PythonInterpreter interpreter = new PythonInterpreter();
interpreter.exec(jython);
PyObject fooClass = interpreter.get("Foo");
assertTrue(fooClass instanceof PyClass);
PyObject getMapFunc = interpreter.get("get_map");
PyObject getListFunc = interpreter.get("get_list");
PyObject getIValFunc = interpreter.get("get_ival");
PyObject foo = fooClass.__call__();
PyObject mapResult = getMapFunc.__call__(foo);
assertTrue(mapResult instanceof PyDictionary);
PyDictionary pyMapResult = ((PyDictionary) mapResult);
assertEquals(2, pyMapResult.size());
Object thirtyTwo = pyMapResult.get("32");
assertTrue(thirtyTwo instanceof Integer);
assertEquals(32, ((Integer) thirtyTwo).intValue());
Object fourPointThree = pyMapResult.get("4.3");
assertTrue(fourPointThree instanceof Double);
assertEquals(4.3, (Double) fourPointThree, DELTA);
PyObject listResult = getListFunc.__call__(foo);
assertTrue(listResult instanceof PyList);
PyList pyListResult = (PyList) listResult;
assertEquals(3, pyListResult.size());
assertEquals(2, pyListResult.get(0));
assertEquals(9, pyListResult.get(1));
assertEquals(11, pyListResult.get(2));
PyObject ivalResult = getIValFunc.__call__(foo);
assertTrue(ivalResult instanceof PyInteger);
assertEquals(17, ((PyInteger) ivalResult).getValue());
}
}