import re from django.contrib.gis import forms from django.contrib.gis.forms import BaseGeometryWidget, OpenLayersWidget from django.contrib.gis.geos import GEOSGeometry from django.forms import ValidationError from django.test import SimpleTestCase, override_settings from django.utils.html import escape class GeometryFieldTest(SimpleTestCase): def test_init(self): "Testing GeometryField initialization with defaults." fld = forms.GeometryField() for bad_default in ('blah', 3, 'FoO', None, 0): with self.subTest(bad_default=bad_default): with self.assertRaises(ValidationError): fld.clean(bad_default) def test_srid(self): "Testing GeometryField with a SRID set." # Input that doesn't specify the SRID is assumed to be in the SRID # of the input field. fld = forms.GeometryField(srid=4326) geom = fld.clean('POINT(5 23)') self.assertEqual(4326, geom.srid) # Making the field in a different SRID from that of the geometry, and # asserting it transforms. fld = forms.GeometryField(srid=32140) tol = 0.0000001 xform_geom = GEOSGeometry('POINT (951640.547328465 4219369.26171664)', srid=32140) # The cleaned geometry is transformed to 32140 (the widget map_srid is 3857). cleaned_geom = fld.clean('SRID=3857;POINT (-10615777.40976205 3473169.895707852)') self.assertEqual(cleaned_geom.srid, 32140) self.assertTrue(xform_geom.equals_exact(cleaned_geom, tol)) def test_null(self): "Testing GeometryField's handling of null (None) geometries." # Form fields, by default, are required (`required=True`) fld = forms.GeometryField() with self.assertRaisesMessage(forms.ValidationError, "No geometry value provided."): fld.clean(None) # This will clean None as a geometry (See #10660). fld = forms.GeometryField(required=False) self.assertIsNone(fld.clean(None)) def test_geom_type(self): "Testing GeometryField's handling of different geometry types." # By default, all geometry types are allowed. fld = forms.GeometryField() for wkt in ('POINT(5 23)', 'MULTIPOLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))', 'LINESTRING(0 0, 1 1)'): with self.subTest(wkt=wkt): # to_python() uses the SRID of OpenLayersWidget if the # converted value doesn't have an SRID. self.assertEqual(GEOSGeometry(wkt, srid=fld.widget.map_srid), fld.clean(wkt)) pnt_fld = forms.GeometryField(geom_type='POINT') self.assertEqual(GEOSGeometry('POINT(5 23)', srid=pnt_fld.widget.map_srid), pnt_fld.clean('POINT(5 23)')) # a WKT for any other geom_type will be properly transformed by `to_python` self.assertEqual( GEOSGeometry('LINESTRING(0 0, 1 1)', srid=pnt_fld.widget.map_srid), pnt_fld.to_python('LINESTRING(0 0, 1 1)') ) # but rejected by `clean` with self.assertRaises(forms.ValidationError): pnt_fld.clean('LINESTRING(0 0, 1 1)') def test_to_python(self): """ to_python() either returns a correct GEOSGeometry object or a ValidationError. """ good_inputs = [ 'POINT(5 23)', 'MULTIPOLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))', 'LINESTRING(0 0, 1 1)', ] bad_inputs = [ 'POINT(5)', 'MULTI POLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))', 'BLAH(0 0, 1 1)', '{"type": "FeatureCollection", "features": [' '{"geometry": {"type": "Point", "coordinates": [508375, 148905]}, "type": "Feature"}]}', ] fld = forms.GeometryField() # to_python returns the same GEOSGeometry for a WKT for geo_input in good_inputs: with self.subTest(geo_input=geo_input): self.assertEqual(GEOSGeometry(geo_input, srid=fld.widget.map_srid), fld.to_python(geo_input)) # but raises a ValidationError for any other string for geo_input in bad_inputs: with self.subTest(geo_input=geo_input): with self.assertRaises(forms.ValidationError): fld.to_python(geo_input) def test_to_python_different_map_srid(self): f = forms.GeometryField(widget=OpenLayersWidget) json = '{ "type": "Point", "coordinates": [ 5.0, 23.0 ] }' self.assertEqual(GEOSGeometry('POINT(5 23)', srid=f.widget.map_srid), f.to_python(json)) def test_field_with_text_widget(self): class PointForm(forms.Form): pt = forms.PointField(srid=4326, widget=forms.TextInput) form = PointForm() cleaned_pt = form.fields['pt'].clean('POINT(5 23)') self.assertEqual(cleaned_pt, GEOSGeometry('POINT(5 23)', srid=4326)) self.assertEqual(4326, cleaned_pt.srid) with self.assertRaisesMessage(ValidationError, 'Invalid geometry value.'): form.fields['pt'].clean('POINT(5)') point = GEOSGeometry('SRID=4326;POINT(5 23)') form = PointForm(data={'pt': 'POINT(5 23)'}, initial={'pt': point}) self.assertFalse(form.has_changed()) def test_field_string_value(self): """ Initialization of a geometry field with a valid/empty/invalid string. Only the invalid string should trigger an error log entry. """ class PointForm(forms.Form): pt1 = forms.PointField(srid=4326) pt2 = forms.PointField(srid=4326) pt3 = forms.PointField(srid=4326) form = PointForm({ 'pt1': 'SRID=4326;POINT(7.3 44)', # valid 'pt2': '', # empty 'pt3': 'PNT(0)', # invalid }) with self.assertLogs('django.contrib.gis', 'ERROR') as logger_calls: output = str(form) # The first point can't use assertInHTML() due to non-deterministic # ordering of the rendered dictionary. pt1_serialized = re.search(r'', output ) self.assertInHTML( '', output ) # Only the invalid PNT(0) triggers an error log entry. # Deserialization is called in form clean and in widget rendering. self.assertEqual(len(logger_calls.records), 2) self.assertEqual( logger_calls.records[0].getMessage(), "Error creating geometry from value 'PNT(0)' (String input " "unrecognized as WKT EWKT, and HEXEWKB.)" ) class SpecializedFieldTest(SimpleTestCase): def setUp(self): self.geometries = { 'point': GEOSGeometry("SRID=4326;POINT(9.052734375 42.451171875)"), 'multipoint': GEOSGeometry("SRID=4326;MULTIPOINT(" "(13.18634033203125 14.504356384277344)," "(13.207969665527 14.490966796875)," "(13.177070617675 14.454917907714))"), 'linestring': GEOSGeometry("SRID=4326;LINESTRING(" "-8.26171875 -0.52734375," "-7.734375 4.21875," "6.85546875 3.779296875," "5.44921875 -3.515625)"), 'multilinestring': GEOSGeometry("SRID=4326;MULTILINESTRING(" "(-16.435546875 -2.98828125," "-17.2265625 2.98828125," "-0.703125 3.515625," "-1.494140625 -3.33984375)," "(-8.0859375 -5.9765625," "8.525390625 -8.7890625," "12.392578125 -0.87890625," "10.01953125 7.646484375))"), 'polygon': GEOSGeometry("SRID=4326;POLYGON(" "(-1.669921875 6.240234375," "-3.8671875 -0.615234375," "5.9765625 -3.955078125," "18.193359375 3.955078125," "9.84375 9.4921875," "-1.669921875 6.240234375))"), 'multipolygon': GEOSGeometry("SRID=4326;MULTIPOLYGON(" "((-17.578125 13.095703125," "-17.2265625 10.8984375," "-13.974609375 10.1953125," "-13.359375 12.744140625," "-15.732421875 13.7109375," "-17.578125 13.095703125))," "((-8.525390625 5.537109375," "-8.876953125 2.548828125," "-5.888671875 1.93359375," "-5.09765625 4.21875," "-6.064453125 6.240234375," "-8.525390625 5.537109375)))"), 'geometrycollection': GEOSGeometry("SRID=4326;GEOMETRYCOLLECTION(" "POINT(5.625 -0.263671875)," "POINT(6.767578125 -3.603515625)," "POINT(8.525390625 0.087890625)," "POINT(8.0859375 -2.13134765625)," "LINESTRING(" "6.273193359375 -1.175537109375," "5.77880859375 -1.812744140625," "7.27294921875 -2.230224609375," "7.657470703125 -1.25244140625))"), } def assertMapWidget(self, form_instance): """ Make sure the MapWidget js is passed in the form media and a MapWidget is actually created """ self.assertTrue(form_instance.is_valid()) rendered = form_instance.as_p() self.assertIn('new MapWidget(options);', rendered) self.assertIn('map_srid: 3857,', rendered) self.assertIn('gis/js/OLMapWidget.js', str(form_instance.media)) def assertTextarea(self, geom, rendered): """Makes sure the wkt and a textarea are in the content""" self.assertIn('