Geografic-Information-System/scripts/v.db.update/testsuite/test_v_db_update.py

"""
Created on Sun Jun 08 22:14:26 2018

@author: Sanjeet Bhatti
"""

from grass.gunittest.case import TestCase
from grass.gunittest.main import test
from grass.gunittest.gmodules import SimpleModule

from grass.script.core import run_command


class TestVDbUpdate(TestCase):
    """Test v.db.update script"""

    mapName = "mygeodetic_pts"

    @classmethod
    def setUpClass(cls):
        """Copy vect"""
        run_command("g.copy", vector="geodetic_pts,mygeodetic_pts")

    @classmethod
    def tearDownClass(cls):
        """Remove vector"""
        run_command("v.db.dropcolumn", map=cls.mapName, columns="zval")
        run_command("g.remove", flags="f", type="vector", name=cls.mapName)

    def test_update(self):
        """update value test"""
        run_command("v.db.addcolumn", map=self.mapName, column="zval double precision")

        module = SimpleModule(
            "v.db.update",
            map=self.mapName,
            column="zval",
            query_column="CAST(z_value AS double precision)",
            where="z_value <> 'N/A'",
        )
        self.assertModule(module)


if __name__ == "__main__":
    test()