Geografic-Information-System/scripts/v.db.addcolumn/testsuite/test_v_db_addcolumn.py

"""
Created on Sun Jun 09 11:28:34 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
from grass.script.utils import decode


class TestVDbAddColumn(TestCase):
    """Test v.db.addcolumn script"""

    @classmethod
    def setUpClass(cls):
        """Copy vector."""
        run_command("g.copy", vector="roadsmajor,myroads")

    @classmethod
    def tearDownClass(cls):
        """Remove copied vector"""
        run_command("g.remove", type="vector", name="myroads", flags="f")

    def test_add_single_column_check(self):
        """Add column to the attribute table"""
        module = SimpleModule(
            "v.db.addcolumn", map="myroads", columns="slope double precision"
        )
        self.assertModule(module)

        m = SimpleModule("v.info", map="myroads", flags="c")
        self.assertModule(m)
        self.assertRegexpMatches(decode(m.outputs.stdout), "slope")

    def test_add_two_columns_check(self):
        """Add two column to the attribute table"""
        module = SimpleModule(
            "v.db.addcolumn",
            map="myroads",
            columns="slope_2 double precision, \
                              myname varchar(15)",
        )
        self.assertModule(module)

        m = SimpleModule("v.info", map="myroads", flags="c")
        self.assertModule(m)
        self.assertRegexpMatches(decode(m.outputs.stdout), "slope_2")
        self.assertRegexpMatches(decode(m.outputs.stdout), "myname")


if __name__ == "__main__":
    test()