430 lines
18 KiB
Python
430 lines
18 KiB
Python
import re
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from django.contrib.gis import forms
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from django.contrib.gis.forms import BaseGeometryWidget, OpenLayersWidget
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from django.contrib.gis.geos import GEOSGeometry
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from django.core.exceptions import ValidationError
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from django.test import SimpleTestCase, override_settings
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from django.utils.html import escape
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class GeometryFieldTest(SimpleTestCase):
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def test_init(self):
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"Testing GeometryField initialization with defaults."
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fld = forms.GeometryField()
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for bad_default in ('blah', 3, 'FoO', None, 0):
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with self.subTest(bad_default=bad_default):
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with self.assertRaises(ValidationError):
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fld.clean(bad_default)
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def test_srid(self):
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"Testing GeometryField with a SRID set."
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# Input that doesn't specify the SRID is assumed to be in the SRID
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# of the input field.
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fld = forms.GeometryField(srid=4326)
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geom = fld.clean('POINT(5 23)')
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self.assertEqual(4326, geom.srid)
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# Making the field in a different SRID from that of the geometry, and
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# asserting it transforms.
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fld = forms.GeometryField(srid=32140)
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tol = 0.0001
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xform_geom = GEOSGeometry('POINT (951640.547328465 4219369.26171664)', srid=32140)
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# The cleaned geometry is transformed to 32140 (the widget map_srid is 3857).
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cleaned_geom = fld.clean('SRID=3857;POINT (-10615777.40976205 3473169.895707852)')
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self.assertEqual(cleaned_geom.srid, 32140)
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self.assertTrue(xform_geom.equals_exact(cleaned_geom, tol))
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def test_null(self):
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"Testing GeometryField's handling of null (None) geometries."
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# Form fields, by default, are required (`required=True`)
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fld = forms.GeometryField()
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with self.assertRaisesMessage(ValidationError, "No geometry value provided."):
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fld.clean(None)
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# This will clean None as a geometry (See #10660).
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fld = forms.GeometryField(required=False)
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self.assertIsNone(fld.clean(None))
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def test_geom_type(self):
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"Testing GeometryField's handling of different geometry types."
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# By default, all geometry types are allowed.
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fld = forms.GeometryField()
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for wkt in ('POINT(5 23)', 'MULTIPOLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))', 'LINESTRING(0 0, 1 1)'):
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with self.subTest(wkt=wkt):
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# to_python() uses the SRID of OpenLayersWidget if the
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# converted value doesn't have an SRID.
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self.assertEqual(GEOSGeometry(wkt, srid=fld.widget.map_srid), fld.clean(wkt))
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pnt_fld = forms.GeometryField(geom_type='POINT')
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self.assertEqual(GEOSGeometry('POINT(5 23)', srid=pnt_fld.widget.map_srid), pnt_fld.clean('POINT(5 23)'))
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# a WKT for any other geom_type will be properly transformed by `to_python`
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self.assertEqual(
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GEOSGeometry('LINESTRING(0 0, 1 1)', srid=pnt_fld.widget.map_srid),
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pnt_fld.to_python('LINESTRING(0 0, 1 1)')
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)
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# but rejected by `clean`
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with self.assertRaises(ValidationError):
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pnt_fld.clean('LINESTRING(0 0, 1 1)')
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def test_to_python(self):
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"""
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to_python() either returns a correct GEOSGeometry object or
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a ValidationError.
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"""
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good_inputs = [
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'POINT(5 23)',
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'MULTIPOLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))',
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'LINESTRING(0 0, 1 1)',
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]
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bad_inputs = [
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'POINT(5)',
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'MULTI POLYGON(((0 0, 0 1, 1 1, 1 0, 0 0)))',
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'BLAH(0 0, 1 1)',
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'{"type": "FeatureCollection", "features": ['
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'{"geometry": {"type": "Point", "coordinates": [508375, 148905]}, "type": "Feature"}]}',
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]
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fld = forms.GeometryField()
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# to_python returns the same GEOSGeometry for a WKT
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for geo_input in good_inputs:
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with self.subTest(geo_input=geo_input):
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self.assertEqual(GEOSGeometry(geo_input, srid=fld.widget.map_srid), fld.to_python(geo_input))
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# but raises a ValidationError for any other string
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for geo_input in bad_inputs:
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with self.subTest(geo_input=geo_input):
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with self.assertRaises(ValidationError):
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fld.to_python(geo_input)
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def test_to_python_different_map_srid(self):
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f = forms.GeometryField(widget=OpenLayersWidget)
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json = '{ "type": "Point", "coordinates": [ 5.0, 23.0 ] }'
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self.assertEqual(GEOSGeometry('POINT(5 23)', srid=f.widget.map_srid), f.to_python(json))
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def test_field_with_text_widget(self):
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class PointForm(forms.Form):
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pt = forms.PointField(srid=4326, widget=forms.TextInput)
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form = PointForm()
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cleaned_pt = form.fields['pt'].clean('POINT(5 23)')
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self.assertEqual(cleaned_pt, GEOSGeometry('POINT(5 23)', srid=4326))
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self.assertEqual(4326, cleaned_pt.srid)
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with self.assertRaisesMessage(ValidationError, 'Invalid geometry value.'):
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form.fields['pt'].clean('POINT(5)')
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point = GEOSGeometry('SRID=4326;POINT(5 23)')
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form = PointForm(data={'pt': 'POINT(5 23)'}, initial={'pt': point})
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self.assertFalse(form.has_changed())
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def test_field_string_value(self):
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"""
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Initialization of a geometry field with a valid/empty/invalid string.
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Only the invalid string should trigger an error log entry.
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"""
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class PointForm(forms.Form):
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pt1 = forms.PointField(srid=4326)
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pt2 = forms.PointField(srid=4326)
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pt3 = forms.PointField(srid=4326)
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form = PointForm({
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'pt1': 'SRID=4326;POINT(7.3 44)', # valid
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'pt2': '', # empty
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'pt3': 'PNT(0)', # invalid
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})
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with self.assertLogs('django.contrib.gis', 'ERROR') as logger_calls:
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output = str(form)
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# The first point can't use assertInHTML() due to non-deterministic
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# ordering of the rendered dictionary.
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pt1_serialized = re.search(r'<textarea [^>]*>({[^<]+})<', output)[1]
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pt1_json = pt1_serialized.replace('"', '"')
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pt1_expected = GEOSGeometry(form.data['pt1']).transform(3857, clone=True)
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self.assertJSONEqual(pt1_json, pt1_expected.json)
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self.assertInHTML(
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'<textarea id="id_pt2" class="vSerializedField required" cols="150"'
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' rows="10" name="pt2"></textarea>',
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output
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)
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self.assertInHTML(
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'<textarea id="id_pt3" class="vSerializedField required" cols="150"'
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' rows="10" name="pt3"></textarea>',
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output
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)
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# Only the invalid PNT(0) triggers an error log entry.
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# Deserialization is called in form clean and in widget rendering.
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self.assertEqual(len(logger_calls.records), 2)
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self.assertEqual(
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logger_calls.records[0].getMessage(),
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"Error creating geometry from value 'PNT(0)' (String input "
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"unrecognized as WKT EWKT, and HEXEWKB.)"
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)
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class SpecializedFieldTest(SimpleTestCase):
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def setUp(self):
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self.geometries = {
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'point': GEOSGeometry("SRID=4326;POINT(9.052734375 42.451171875)"),
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'multipoint': GEOSGeometry("SRID=4326;MULTIPOINT("
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"(13.18634033203125 14.504356384277344),"
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"(13.207969665527 14.490966796875),"
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"(13.177070617675 14.454917907714))"),
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'linestring': GEOSGeometry("SRID=4326;LINESTRING("
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"-8.26171875 -0.52734375,"
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"-7.734375 4.21875,"
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"6.85546875 3.779296875,"
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"5.44921875 -3.515625)"),
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'multilinestring': GEOSGeometry("SRID=4326;MULTILINESTRING("
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"(-16.435546875 -2.98828125,"
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"-17.2265625 2.98828125,"
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"-0.703125 3.515625,"
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"-1.494140625 -3.33984375),"
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"(-8.0859375 -5.9765625,"
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"8.525390625 -8.7890625,"
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"12.392578125 -0.87890625,"
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"10.01953125 7.646484375))"),
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'polygon': GEOSGeometry("SRID=4326;POLYGON("
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"(-1.669921875 6.240234375,"
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"-3.8671875 -0.615234375,"
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"5.9765625 -3.955078125,"
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"18.193359375 3.955078125,"
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"9.84375 9.4921875,"
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"-1.669921875 6.240234375))"),
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'multipolygon': GEOSGeometry("SRID=4326;MULTIPOLYGON("
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"((-17.578125 13.095703125,"
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"-17.2265625 10.8984375,"
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"-13.974609375 10.1953125,"
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"-13.359375 12.744140625,"
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"-15.732421875 13.7109375,"
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"-17.578125 13.095703125)),"
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"((-8.525390625 5.537109375,"
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"-8.876953125 2.548828125,"
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"-5.888671875 1.93359375,"
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"-5.09765625 4.21875,"
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"-6.064453125 6.240234375,"
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"-8.525390625 5.537109375)))"),
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'geometrycollection': GEOSGeometry("SRID=4326;GEOMETRYCOLLECTION("
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"POINT(5.625 -0.263671875),"
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"POINT(6.767578125 -3.603515625),"
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"POINT(8.525390625 0.087890625),"
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"POINT(8.0859375 -2.13134765625),"
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"LINESTRING("
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"6.273193359375 -1.175537109375,"
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"5.77880859375 -1.812744140625,"
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"7.27294921875 -2.230224609375,"
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"7.657470703125 -1.25244140625))"),
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}
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def assertMapWidget(self, form_instance):
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"""
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Make sure the MapWidget js is passed in the form media and a MapWidget
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is actually created
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"""
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self.assertTrue(form_instance.is_valid())
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rendered = form_instance.as_p()
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self.assertIn('new MapWidget(options);', rendered)
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self.assertIn('map_srid: 3857,', rendered)
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self.assertIn('gis/js/OLMapWidget.js', str(form_instance.media))
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def assertTextarea(self, geom, rendered):
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"""Makes sure the wkt and a textarea are in the content"""
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self.assertIn('<textarea ', rendered)
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self.assertIn('required', rendered)
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ogr = geom.ogr
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ogr.transform(3857)
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self.assertIn(escape(ogr.json), rendered)
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# map_srid in openlayers.html template must not be localized.
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@override_settings(USE_L10N=True, USE_THOUSAND_SEPARATOR=True)
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def test_pointfield(self):
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class PointForm(forms.Form):
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p = forms.PointField()
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geom = self.geometries['point']
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form = PointForm(data={'p': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(PointForm().is_valid())
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invalid = PointForm(data={'p': 'some invalid geom'})
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self.assertFalse(invalid.is_valid())
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self.assertIn('Invalid geometry value', str(invalid.errors))
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for invalid in [geo for key, geo in self.geometries.items() if key != 'point']:
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self.assertFalse(PointForm(data={'p': invalid.wkt}).is_valid())
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def test_multipointfield(self):
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class PointForm(forms.Form):
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p = forms.MultiPointField()
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geom = self.geometries['multipoint']
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form = PointForm(data={'p': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(PointForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'multipoint']:
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self.assertFalse(PointForm(data={'p': invalid.wkt}).is_valid())
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def test_linestringfield(self):
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class LineStringForm(forms.Form):
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f = forms.LineStringField()
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geom = self.geometries['linestring']
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form = LineStringForm(data={'f': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(LineStringForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'linestring']:
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self.assertFalse(LineStringForm(data={'p': invalid.wkt}).is_valid())
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def test_multilinestringfield(self):
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class LineStringForm(forms.Form):
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f = forms.MultiLineStringField()
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geom = self.geometries['multilinestring']
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form = LineStringForm(data={'f': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(LineStringForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'multilinestring']:
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self.assertFalse(LineStringForm(data={'p': invalid.wkt}).is_valid())
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def test_polygonfield(self):
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class PolygonForm(forms.Form):
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p = forms.PolygonField()
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geom = self.geometries['polygon']
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form = PolygonForm(data={'p': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(PolygonForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'polygon']:
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self.assertFalse(PolygonForm(data={'p': invalid.wkt}).is_valid())
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def test_multipolygonfield(self):
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class PolygonForm(forms.Form):
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p = forms.MultiPolygonField()
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geom = self.geometries['multipolygon']
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form = PolygonForm(data={'p': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(PolygonForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'multipolygon']:
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self.assertFalse(PolygonForm(data={'p': invalid.wkt}).is_valid())
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def test_geometrycollectionfield(self):
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class GeometryForm(forms.Form):
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g = forms.GeometryCollectionField()
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geom = self.geometries['geometrycollection']
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form = GeometryForm(data={'g': geom})
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self.assertTextarea(geom, form.as_p())
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self.assertMapWidget(form)
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self.assertFalse(GeometryForm().is_valid())
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for invalid in [geo for key, geo in self.geometries.items() if key != 'geometrycollection']:
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self.assertFalse(GeometryForm(data={'g': invalid.wkt}).is_valid())
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class OSMWidgetTest(SimpleTestCase):
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def setUp(self):
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self.geometries = {
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'point': GEOSGeometry("SRID=4326;POINT(9.052734375 42.451171875)"),
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}
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def test_osm_widget(self):
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class PointForm(forms.Form):
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p = forms.PointField(widget=forms.OSMWidget)
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geom = self.geometries['point']
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form = PointForm(data={'p': geom})
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rendered = form.as_p()
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self.assertIn("ol.source.OSM()", rendered)
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self.assertIn("id: 'id_p',", rendered)
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def test_default_lat_lon(self):
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self.assertEqual(forms.OSMWidget.default_lon, 5)
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self.assertEqual(forms.OSMWidget.default_lat, 47)
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self.assertEqual(forms.OSMWidget.default_zoom, 12)
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class PointForm(forms.Form):
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p = forms.PointField(
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widget=forms.OSMWidget(attrs={
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'default_lon': 20,
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'default_lat': 30,
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'default_zoom': 17,
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}),
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)
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form = PointForm()
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rendered = form.as_p()
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self.assertIn("options['default_lon'] = 20;", rendered)
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self.assertIn("options['default_lat'] = 30;", rendered)
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self.assertIn("options['default_zoom'] = 17;", rendered)
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class GeometryWidgetTests(SimpleTestCase):
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def test_get_context_attrs(self):
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"""The Widget.get_context() attrs argument overrides self.attrs."""
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widget = BaseGeometryWidget(attrs={'geom_type': 'POINT'})
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context = widget.get_context('point', None, attrs={'geom_type': 'POINT2'})
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self.assertEqual(context['geom_type'], 'POINT2')
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def test_subwidgets(self):
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widget = forms.BaseGeometryWidget()
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self.assertEqual(
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list(widget.subwidgets('name', 'value')),
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[{
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'is_hidden': False,
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'attrs': {
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'map_srid': 4326,
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'map_width': 600,
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'geom_type': 'GEOMETRY',
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'map_height': 400,
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'display_raw': False,
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},
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'name': 'name',
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'template_name': '',
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'value': 'value',
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'required': False,
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}]
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)
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def test_custom_serialization_widget(self):
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class CustomGeometryWidget(forms.BaseGeometryWidget):
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template_name = 'gis/openlayers.html'
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deserialize_called = 0
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def serialize(self, value):
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return value.json if value else ''
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def deserialize(self, value):
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self.deserialize_called += 1
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return GEOSGeometry(value)
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class PointForm(forms.Form):
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p = forms.PointField(widget=CustomGeometryWidget)
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point = GEOSGeometry("SRID=4326;POINT(9.052734375 42.451171875)")
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form = PointForm(data={'p': point})
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self.assertIn(escape(point.json), form.as_p())
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CustomGeometryWidget.called = 0
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widget = form.fields['p'].widget
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# Force deserialize use due to a string value
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self.assertIn(escape(point.json), widget.render('p', point.json))
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self.assertEqual(widget.deserialize_called, 1)
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form = PointForm(data={'p': point.json})
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self.assertTrue(form.is_valid())
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self.assertEqual(form.cleaned_data['p'].srid, 4326)
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