db.univar: added test, thanks to Sanjeet Bhatti

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@74260 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/db.univar/testsuite/test_db_univar.py

@@ -0,0 +1,48 @@
+"""
+Created on Sun Jun 07 21:01:34 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
+
+
+class TestDbUnivar(TestCase):
+    """Test db.univar script"""
+
+    columnName = 'heights'
+    mapName = 'samples'
+
+    @classmethod
+    def setUpClass(cls):
+        """Use temp region"""
+        cls.use_temp_region()
+        cls.runModule('g.region', raster='elevation', flags='p')
+
+    @classmethod
+    def tearDownClass(cls):
+        """Remove temporary region"""
+        cls.runModule('g.remove', flags='f', type='raster', name='elevation')
+        cls.del_temp_region()
+
+        run_command('v.db.droptable', map='samples', flags='f')
+
+    def test_calculate(self):
+        """run db.univar"""
+        run_command('v.random', output=self.mapName, n=100, overwrite='True')
+        run_command('v.db.addtable', map=self.mapName,
+                    column="heights double precision")
+        run_command('v.what.rast', map=self.mapName, raster='elevation',
+                    column=self.columnName)
+        run_command('v.db.select', map=self.mapName)
+
+        module = SimpleModule('db.univar', table=self.mapName,
+                              column=self.columnName)
+        self.assertModule(module)
+
+if __name__ == '__main__':
+    test()