[GRASS-SVN] r67964 - in grass/trunk/raster/r.grow.distance: . testsuite

[svn_grass at osgeo.org]

Author: lucadelu
Date: 2016-02-26 07:01:54 -0800 (Fri, 26 Feb 2016)
New Revision: 67964

Added:
   grass/trunk/raster/r.grow.distance/testsuite/
   grass/trunk/raster/r.grow.distance/testsuite/r_grow_distance_test.py
Log:
r.grow.distance: added test thanks to aandre (#2937)

Added: grass/trunk/raster/r.grow.distance/testsuite/r_grow_distance_test.py
===================================================================
--- grass/trunk/raster/r.grow.distance/testsuite/r_grow_distance_test.py	                        (rev 0)
+++ grass/trunk/raster/r.grow.distance/testsuite/r_grow_distance_test.py	2016-02-26 15:01:54 UTC (rev 67964)
@@ -0,0 +1,52 @@
+"""
+Name:      r_grow_distance_test
+Purpose:   This script is to demonstrate a unit test for r.grow.distance
+           module.
+"""
+
+from grass.gunittest.case import TestCase
+from grass.gunittest.main import test
+
+
+class TestGrowDistance(TestCase):
+    """Test case for grow distance module"""
+
+    # Setup variables to be used for outputs
+    distance = 'test_distance'
+    lakes = 'lakes'
+    elevation = 'elevation'
+
+    @classmethod
+    def setUpClass(cls):
+        """Ensures expected computational region and setup"""
+        # Always use the computational region of the raster elevation
+        cls.use_temp_region()
+        cls.runModule('g.region', raster=cls.elevation)
+
+    @classmethod
+    def tearDownClass(cls):
+        """Remove the temporary region"""
+        cls.del_temp_region()
+
+    def tearDown(self):
+        """Remove the outputs created from the grow distance module
+
+        This is executed after each test run.
+        """
+        self.runModule('g.remove', flags='f', type='raster',
+                       name=self.distance)
+
+    def test_grow(self):
+        """Test to see if the outputs are created"""
+        # run the grow distance module
+        self.assertModule('r.grow.distance', input=self.lakes,
+                          distance=self.distance)
+        # check to see if distance output is in mapset
+        self.assertRasterExists(self.distance,
+                                msg='distance output was not created')
+        self.assertRasterMinMax(self.distance, 0, 5322,
+                                msg='distance output not in range')
+
+
+if __name__ == '__main__':
+    test()