src/ports/postgres/modules/dbscan/test/unit_tests/test_dbscan.py_in

# coding=utf-8
#
# 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.

import sys
import numpy as np
from os import path

# Add modules to the pythonpath.
sys.path.append(path.dirname(path.dirname(path.dirname(path.dirname(path.abspath(__file__))))))
sys.path.append(path.dirname(path.dirname(path.dirname(path.abspath(__file__)))))

import unittest
from mock import *
import plpy_mock as plpy

m4_changequote(`<!', `!>')

class DBSCANTestCase(unittest.TestCase):

    def setUp(self):
        self.plpy_mock = Mock(spec='error')
        patches = {
            'plpy': plpy
        }
        # we need to use MagicMock() instead of Mock() for the plpy.execute mock
        # to be able to iterate on the return value
        self.plpy_mock_execute = MagicMock()
        plpy.execute = self.plpy_mock_execute

        self.module_patcher = patch.dict('sys.modules', patches)
        self.module_patcher.start()

        self.default_dict = {
            'schema_madlib' : "madlib",
            'source_table' : "source",
            'output_table' : "output",
            'id_column' : "id_in",
            'expr_point' : "data",
            'eps' : 20,
            'min_samples' : 4,
            'metric' : 'squared_dist_norm2',
            'algorithm' : 'brute'
        }
        import dbscan.dbscan
        self.module = dbscan.dbscan

    def tearDown(self):
        self.module_patcher.stop()

    def test_validate_dbscan(self):

        self.module.input_tbl_valid = Mock()
        self.module.output_tbl_valid = Mock()
        self.module.cols_in_tbl_valid = Mock()
        self.module.is_var_valid = Mock(return_value = True)
        self.module.get_expr_type = Mock(return_value = 'double precision[]')

        self.module._validate_dbscan(**self.default_dict)

if __name__ == '__main__':
    unittest.main()

# ---------------------------------------------------------------------