v.db.droprow: remove randomness from testsuite to fix failing tests (#1824)

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

@@ -9,7 +9,6 @@ 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):
@@ -18,7 +17,7 @@ class TestVDbDropRow(TestCase):
     mapName = "elevation"
     inputMap = "rand5k_elev"
     outputMap = "rand5k_elev_filt"
-    values = "min=56.12\nmax=155.157"
+    values = "min=100.013\nmax=149.102"
 
     @classmethod
     def setUpClass(cls):
@@ -37,9 +36,9 @@ class TestVDbDropRow(TestCase):
 
     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.mkgrid", map=self.inputMap, grid=[10, 10], type="point")
         run_command(
-            "v.db.addtable", map=self.inputMap, column="elevation double precision"
+            "v.db.addcolumn", map=self.inputMap, column="elevation double precision"
         )
         run_command(
             "v.what.rast", map=self.inputMap, raster=self.mapName, column=self.mapName
@@ -49,12 +48,15 @@ class TestVDbDropRow(TestCase):
             "v.db.droprow",
             input=self.inputMap,
             output=self.outputMap,
-            where="elevation IS NULL",
+            where="elevation < 100",
         )
         self.assertModule(module)
 
         self.assertVectorFitsUnivar(
-            map=self.outputMap, column="elevation", reference=self.values, precision=5
+            map=self.outputMap,
+            column="elevation",
+            reference=self.values,
+            precision=0.001,
         )