r.import: add testsuite

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@65835 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/r.import/testsuite/data/data2.asc

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+nrows        3
+xllcorner    1544385.000000000000
+yllcorner    1553655.000000000000
+cellsize     30.000000000000
+NODATA_value 255
+ 22 22 21 21
+ 22 22 22 21
+ 21 22 22 22

scripts/r.import/testsuite/data/data2.asc.aux.xml

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+<PAMDataset>
+  <Metadata>
+    <MDI key="AREA_OR_POINT">Area</MDI>
+    <MDI key="DataType">Thematic</MDI>
+  </Metadata>
+  <PAMRasterBand band="1">
+    <ColorInterp>Palette</ColorInterp>
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+      <MDI key="STATISTICS_MEAN">21.666666666667</MDI>
+      <MDI key="STATISTICS_MINIMUM">21</MDI>
+      <MDI key="STATISTICS_STDDEV">0.47140452079098</MDI>
+    </Metadata>
+  </PAMRasterBand>
+</PAMDataset>

scripts/r.import/testsuite/data/data2.prj

@@ -0,0 +1 @@
+PROJCS["Albers_Conical_Equal_Area",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Albers"],PARAMETER["standard_parallel_1",29.5],PARAMETER["standard_parallel_2",45.5],PARAMETER["latitude_of_origin",23],PARAMETER["central_meridian",-96],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1]]

scripts/r.import/testsuite/test_r_import.py

@@ -0,0 +1,50 @@
+from grass.gunittest.case import TestCase
+from grass.gunittest.main import test
+
+
+class TestRImportRegion(TestCase):
+
+    imported = 'test_r_import_imported'
+
+    @classmethod
+    def setUpClass(cls):
+        cls.runModule('g.region', raster='elevation')
+
+    def tearDown(cls):
+        """Remove imported map after each test method"""
+        cls.runModule('g.remove', flags='f', type='raster',
+                      name=cls.imported)
+
+    def test_import_estimate(self):
+        """Test e flag"""
+        self.assertModule('r.import', input='data/data2.asc', output=self.imported,
+                          resample='nearest', flags='e')
+        self.assertRasterDoesNotExist(name=self.imported)
+
+    def test_import_same_proj_tif(self):
+        """Import tif in same proj, default params"""
+        self.assertModule('r.import', input='data/data1.tif', output=self.imported,
+                          resample='bilinear')
+        reference = dict(north=223490, south=223390, east=636820, west=636710,
+                         nsres=10, ewres=10, datatype='FCELL')
+        self.assertRasterFitsInfo(raster=self.imported, reference=reference)
+
+    def test_import_asc_custom_res(self):
+        """Import ASC in different projection, with specified resolution"""
+        self.assertModule('r.import', input='data/data2.asc', output=self.imported,
+                          resample='nearest', resolution='value', resolution_value=30)
+        reference = dict(rows=3, cols=4,
+                         nsres=30, ewres=30, datatype='CELL')
+        self.assertRasterFitsInfo(raster=self.imported, reference=reference, precision=1.1)
+
+    def test_import_asc_region_extent(self):
+        """Import ASC in different projection in specified region"""
+        self.runModule('g.region', raster='elevation', n=223655, s=223600)
+        self.assertModule('r.import', input='data/data2.asc', output=self.imported,
+                          resample='nearest', extent='region', resolution='region')
+        reference = dict(north=223655, south=223600)
+        self.assertRasterFitsInfo(raster=self.imported, reference=reference, precision=1e-6)
+
+
+if __name__ == '__main__':
+    test()