v.db.droprow: added test, thanks to Sanjeet Bhatti

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@74243 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/v.db.droprow/testsuite/test_v_db_droprow.py

@@ -0,0 +1,53 @@
+"""
+Created on Sun Jun 09 01:52:34 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 TestVDbDropRow(TestCase):
+    """Test v.db.droprow script"""
+
+    mapName = 'elevation'
+    inputMap = 'rand5k_elev'
+    outputMap = 'rand5k_elev_filt'
+    values = 'min=56.12\nmax=155.157'
+
+    @classmethod
+    def setUpClass(cls):
+        """Create maps in a small region."""
+        cls.use_temp_region()
+        cls.runModule('g.region', raster=cls.mapName, flags='p')
+
+    @classmethod
+    def tearDownClass(cls):
+        """Remove temporary region"""
+        cls.del_temp_region()
+
+        cls.runModule('g.remove', flags='f', type='vector',
+                      name=(cls.inputMap, cls.outputMap))
+
+    def test_drop_row_check(self):
+        """Drop vector object from a vector map"""
+        run_command('v.random', output=self.inputMap, n=5000)
+        run_command('v.db.addtable', map=self.inputMap,
+                    column="elevation double precision")
+        run_command('v.what.rast', map=self.inputMap,
+                    raster=self.mapName, column=self.mapName)
+
+        module = SimpleModule('v.db.droprow', input=self.inputMap,
+                              output=self.outputMap, where='elevation IS NULL')
+        self.assertModule(module)
+
+        self.assertVectorFitsUnivar(map=self.outputMap, column='elevation',
+                                    reference=self.values, precision=5)
+
+if __name__ == '__main__':
+    test()