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test_provider_sensorthings.py
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test_provider_sensorthings.py
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"""QGIS Unit tests for the OGC SensorThings API provider.
From build dir, run: ctest -R PyQgsSensorThingsProvider -V
.. note:: This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
__author__ = "Nyall Dawson"
__date__ = "2023-11-08"
import hashlib
import tempfile
import unittest
from qgis.PyQt.QtCore import QVariant, QCoreApplication, QDateTime, Qt, QDate, QTime
from qgis.core import (
Qgis,
QgsProviderRegistry,
QgsVectorLayer,
QgsSettings,
QgsSensorThingsUtils,
QgsFeatureRequest,
QgsRectangle,
QgsSensorThingsExpansionDefinition
)
from qgis.testing import start_app, QgisTestCase
def sanitize(endpoint, x):
for prefix in ('/Locations',
'/HistoricalLocations',
'/Things',
'/FeaturesOfInterest',
'/MultiDatastreams'):
if x.startswith(prefix):
x = x[len(prefix):]
endpoint = endpoint + "_" + prefix[1:]
if len(endpoint + x) > 150:
ret = endpoint + hashlib.md5(x.encode()).hexdigest()
# print('Before: ' + endpoint + x)
# print('After: ' + ret)
return ret
return endpoint + x.replace("?", "_").replace("&", "_").replace("<", "_").replace(
">", "_"
).replace('"', "_").replace("'", "_").replace(" ", "_").replace(":", "_").replace(
"/", "_"
).replace(
"\n", "_"
).replace(
"$", "_"
)
class TestPyQgsSensorThingsProvider(QgisTestCase): # , ProviderTestCase):
@classmethod
def setUpClass(cls):
"""Run before all tests"""
super(TestPyQgsSensorThingsProvider, cls).setUpClass()
QCoreApplication.setOrganizationName("QGIS_Test")
QCoreApplication.setOrganizationDomain("TestPyQgsSensorThingsProvider.com")
QCoreApplication.setApplicationName("TestPyQgsSensorThingsProvider")
QgsSettings().clear()
start_app()
# On Windows we must make sure that any backslash in the path is
# replaced by a forward slash so that QUrl can process it
cls.basetestpath = tempfile.mkdtemp().replace("\\", "/")
@classmethod
def tearDownClass(cls):
"""Run after all tests"""
QgsSettings().clear()
# shutil.rmtree(cls.basetestpath, True)
cls.vl = (
None # so as to properly close the provider and remove any temporary file
)
super().tearDownClass()
def test_filter_for_wkb_type(self):
"""
Test constructing a valid filter string which will return only
features with a desired WKB type
"""
self.assertEqual(
QgsSensorThingsUtils.filterForWkbType(Qgis.SensorThingsEntity.Location, Qgis.WkbType.Point),
"location/type eq 'Point' or location/geometry/type eq 'Point'"
)
self.assertEqual(
QgsSensorThingsUtils.filterForWkbType(Qgis.SensorThingsEntity.Location, Qgis.WkbType.PointZ),
"location/type eq 'Point' or location/geometry/type eq 'Point'"
)
self.assertEqual(
QgsSensorThingsUtils.filterForWkbType(Qgis.SensorThingsEntity.FeatureOfInterest, Qgis.WkbType.Polygon),
"feature/type eq 'Polygon' or feature/geometry/type eq 'Polygon'"
)
self.assertEqual(
QgsSensorThingsUtils.filterForWkbType(Qgis.SensorThingsEntity.Location, Qgis.WkbType.LineString),
"location/type eq 'LineString' or location/geometry/type eq 'LineString'"
)
self.assertEqual(
QgsSensorThingsUtils.filterForWkbType(Qgis.SensorThingsEntity.MultiDatastream, Qgis.WkbType.Polygon),
"observedArea/type eq 'Polygon' or observedArea/geometry/type eq 'Polygon'"
)
def test_utils_string_to_entity(self):
self.assertEqual(
QgsSensorThingsUtils.stringToEntity("x"), Qgis.SensorThingsEntity.Invalid
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" thing "),
Qgis.SensorThingsEntity.Thing,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" LOCATION "),
Qgis.SensorThingsEntity.Location,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" HistoricalLocation "),
Qgis.SensorThingsEntity.HistoricalLocation,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" datastream "),
Qgis.SensorThingsEntity.Datastream,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" Sensor "),
Qgis.SensorThingsEntity.Sensor,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" ObservedProperty "),
Qgis.SensorThingsEntity.ObservedProperty,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" Observation "),
Qgis.SensorThingsEntity.Observation,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" FeatureOfInterest "),
Qgis.SensorThingsEntity.FeatureOfInterest,
)
self.assertEqual(
QgsSensorThingsUtils.stringToEntity(" MultiDataStream "),
Qgis.SensorThingsEntity.MultiDatastream,
)
def test_utils_string_to_entityset(self):
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity("x"),
Qgis.SensorThingsEntity.Invalid,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" things "),
Qgis.SensorThingsEntity.Thing,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" LOCATIONs "),
Qgis.SensorThingsEntity.Location,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" HistoricalLocations "),
Qgis.SensorThingsEntity.HistoricalLocation,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" datastreams "),
Qgis.SensorThingsEntity.Datastream,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" Sensors "),
Qgis.SensorThingsEntity.Sensor,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" ObservedProperties "),
Qgis.SensorThingsEntity.ObservedProperty,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" Observations "),
Qgis.SensorThingsEntity.Observation,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" FeaturesOfInterest "),
Qgis.SensorThingsEntity.FeatureOfInterest,
)
self.assertEqual(
QgsSensorThingsUtils.entitySetStringToEntity(" MultidataStreams "),
Qgis.SensorThingsEntity.MultiDatastream,
)
def test_utils_entity_to_set_string(self):
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Invalid),
'',
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Thing),
"Things"
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Location),
"Locations",
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.HistoricalLocation),
"HistoricalLocations",
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Datastream),
"Datastreams",
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Sensor),
"Sensors"
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.ObservedProperty),
"ObservedProperties",
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.Observation),
"Observations"
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.FeatureOfInterest),
"FeaturesOfInterest",
)
self.assertEqual(
QgsSensorThingsUtils.entityToSetString(Qgis.SensorThingsEntity.MultiDatastream),
"MultiDatastreams",
)
def test_expansion_definition(self):
"""
Test QgsSensorThingsExpansionDefinition
"""
expansion = QgsSensorThingsExpansionDefinition()
self.assertFalse(expansion.isValid())
self.assertFalse(expansion.asQueryString(Qgis.SensorThingsEntity.Invalid))
# test getters/setters
expansion = QgsSensorThingsExpansionDefinition(Qgis.SensorThingsEntity.ObservedProperty)
self.assertTrue(expansion.isValid())
self.assertEqual(expansion.childEntity(), Qgis.SensorThingsEntity.ObservedProperty)
self.assertEqual(expansion.limit(), 100)
self.assertFalse(expansion.filter())
self.assertEqual(repr(expansion), '<QgsSensorThingsExpansionDefinition: ObservedProperty limit 100>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Datastream), '$expand=ObservedProperty($top=100)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Datastream, ['$expand=Locations($top=101)']),
'$expand=ObservedProperty($top=100;$expand=Locations($top=101))')
expansion.setChildEntity(Qgis.SensorThingsEntity.Location)
self.assertEqual(expansion.childEntity(),
Qgis.SensorThingsEntity.Location)
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location limit 100>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations($top=100)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing, ['$expand=Datastreams($top=101)']),
'$expand=Locations($top=100;$expand=Datastreams($top=101))')
expansion.setLimit(-1)
self.assertEqual(expansion.limit(), -1)
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing,
['$expand=Datastreams($top=101)']),
'$expand=Locations($expand=Datastreams($top=101))')
expansion.setOrderBy('id')
self.assertEqual(expansion.orderBy(), 'id')
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location by id (asc)>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations($orderby=id)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing,
['$expand=Datastreams($top=101)']),
'$expand=Locations($orderby=id;$expand=Datastreams($top=101))')
expansion.setSortOrder(Qt.SortOrder.DescendingOrder)
self.assertEqual(expansion.sortOrder(), Qt.SortOrder.DescendingOrder)
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location by id (desc)>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations($orderby=id desc)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing, ['$expand=Datastreams($top=101)']),
'$expand=Locations($orderby=id desc;$expand=Datastreams($top=101))')
expansion.setLimit(3)
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location by id (desc), limit 3>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations($orderby=id desc;$top=3)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing, ['$expand=Datastreams($top=101)']),
'$expand=Locations($orderby=id desc;$top=3;$expand=Datastreams($top=101))')
expansion.setFilter('result eq 1')
self.assertEqual(expansion.filter(), 'result eq 1')
self.assertEqual(repr(expansion),
'<QgsSensorThingsExpansionDefinition: Location by id (desc), limit 3, filter \'result eq 1\'>')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing),
'$expand=Locations($orderby=id desc;$top=3;$filter=result eq 1)')
self.assertEqual(expansion.asQueryString(Qgis.SensorThingsEntity.Thing, ['$expand=Datastreams($top=101)']),
'$expand=Locations($orderby=id desc;$top=3;$filter=result eq 1;$expand=Datastreams($top=101))')
# test equality
expansion1 = QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.ObservedProperty)
expansion2 = QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.ObservedProperty)
self.assertEqual(expansion1, expansion2)
self.assertNotEqual(expansion1, QgsSensorThingsExpansionDefinition())
self.assertNotEqual(QgsSensorThingsExpansionDefinition(), expansion2)
self.assertEqual(QgsSensorThingsExpansionDefinition(),
QgsSensorThingsExpansionDefinition())
expansion2.setChildEntity(Qgis.SensorThingsEntity.Sensor)
self.assertNotEqual(expansion1, expansion2)
expansion2.setChildEntity(Qgis.SensorThingsEntity.ObservedProperty)
self.assertEqual(expansion1, expansion2)
expansion2.setOrderBy('x')
self.assertNotEqual(expansion1, expansion2)
expansion2.setOrderBy('')
self.assertEqual(expansion1, expansion2)
expansion2.setSortOrder(Qt.SortOrder.DescendingOrder)
self.assertNotEqual(expansion1, expansion2)
expansion2.setSortOrder(Qt.SortOrder.AscendingOrder)
self.assertEqual(expansion1, expansion2)
expansion2.setLimit(33)
self.assertNotEqual(expansion1, expansion2)
expansion2.setLimit(100)
self.assertEqual(expansion1, expansion2)
expansion2.setFilter('result eq 1')
self.assertNotEqual(expansion1, expansion2)
expansion2.setFilter('')
self.assertEqual(expansion1, expansion2)
# test to/from string
expansion = QgsSensorThingsExpansionDefinition()
string = expansion.toString()
self.assertFalse(string)
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertFalse(res.isValid())
expansion.setChildEntity(Qgis.SensorThingsEntity.Sensor)
expansion.setLimit(-1)
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.childEntity(), Qgis.SensorThingsEntity.Sensor)
self.assertFalse(res.orderBy())
self.assertEqual(res.limit(), -1)
expansion.setOrderBy('test')
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.childEntity(), Qgis.SensorThingsEntity.Sensor)
self.assertEqual(res.orderBy(), 'test')
self.assertEqual(res.sortOrder(), Qt.SortOrder.AscendingOrder)
self.assertEqual(res.limit(), -1)
expansion.setSortOrder(Qt.SortOrder.DescendingOrder)
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.childEntity(), Qgis.SensorThingsEntity.Sensor)
self.assertEqual(res.orderBy(), 'test')
self.assertEqual(res.sortOrder(), Qt.SortOrder.DescendingOrder)
self.assertEqual(res.limit(), -1)
expansion.setLimit(5)
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.childEntity(), Qgis.SensorThingsEntity.Sensor)
self.assertEqual(res.orderBy(), 'test')
self.assertEqual(res.sortOrder(), Qt.SortOrder.DescendingOrder)
self.assertEqual(res.limit(), 5)
expansion.setOrderBy('')
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.childEntity(), Qgis.SensorThingsEntity.Sensor)
self.assertFalse(res.orderBy())
self.assertEqual(res.limit(), 5)
expansion.setFilter('request eq 1:2')
string = expansion.toString()
res = QgsSensorThingsExpansionDefinition.fromString(string)
self.assertTrue(res.isValid())
self.assertEqual(res.filter(), expansion.filter())
def test_expansions_as_query_string(self):
"""
Test constructing query strings from a list of expansions
"""
self.assertFalse(
QgsSensorThingsUtils.asQueryString(Qgis.SensorThingsEntity.Invalid,
[])
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(Qgis.SensorThingsEntity.Thing,
[
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Location,
orderBy='id', limit=3)
]),
'$expand=Locations($orderby=id;$top=3)'
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(Qgis.SensorThingsEntity.Thing,
[
QgsSensorThingsExpansionDefinition(),
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Datastream,
orderBy='id', limit=3)
]),
'$expand=Datastreams($orderby=id;$top=3)'
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(Qgis.SensorThingsEntity.Thing,
[
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Datastream,
orderBy='id', limit=3)
]),
'$expand=Datastreams($orderby=id;$top=3)'
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(
Qgis.SensorThingsEntity.Observation,
[QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Datastream,
orderBy='id', limit=3)
]),
'$expand=Datastream($orderby=id;$top=3)'
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(Qgis.SensorThingsEntity.Thing,
[
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Location,
orderBy='id', limit=3),
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Sensor,
orderBy='description',
limit=30)
]),
'$expand=Locations($orderby=id;$top=3;$expand=Sensors($orderby=description;$top=30))'
)
self.assertEqual(
QgsSensorThingsUtils.asQueryString(
Qgis.SensorThingsEntity.Location,
[
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Thing,
orderBy='id', limit=3),
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.Datastream,
orderBy='description', limit=30),
QgsSensorThingsExpansionDefinition(
Qgis.SensorThingsEntity.ObservedProperty,
orderBy='name', limit=-1)
]),
'$expand=Things($orderby=id;$top=3;$expand=Datastreams($orderby=description;$top=30;$expand=ObservedProperty($orderby=name)))'
)
def test_fields_for_expanded_entity(self):
"""
Test calculating fields for an expanded entity
"""
fields = QgsSensorThingsUtils.fieldsForExpandedEntityType(
Qgis.SensorThingsEntity.Location,
[])
self.assertEqual([field.name() for field in fields],
['id', 'selfLink', 'name', 'description',
'properties'])
fields = QgsSensorThingsUtils.fieldsForExpandedEntityType(
Qgis.SensorThingsEntity.Location,
[Qgis.SensorThingsEntity.Thing])
self.assertEqual([field.name() for field in fields],
['id', 'selfLink', 'name', 'description',
'properties', 'Thing_id', 'Thing_selfLink',
'Thing_name', 'Thing_description',
'Thing_properties'])
fields = QgsSensorThingsUtils.fieldsForExpandedEntityType(
Qgis.SensorThingsEntity.Location,
[Qgis.SensorThingsEntity.Thing,
Qgis.SensorThingsEntity.Datastream])
self.assertEqual([field.name() for field in fields],
['id', 'selfLink', 'name', 'description',
'properties', 'Thing_id', 'Thing_selfLink',
'Thing_name', 'Thing_description',
'Thing_properties', 'Thing_Datastream_id',
'Thing_Datastream_selfLink', 'Thing_Datastream_name',
'Thing_Datastream_description',
'Thing_Datastream_unitOfMeasurement',
'Thing_Datastream_observationType',
'Thing_Datastream_properties',
'Thing_Datastream_phenomenonTimeStart',
'Thing_Datastream_phenomenonTimeEnd',
'Thing_Datastream_resultTimeStart',
'Thing_Datastream_resultTimeEnd'])
def test_expandable_targets(self):
"""
Test valid expansion targets for entity types
"""
self.assertEqual(QgsSensorThingsUtils.expandableTargets(
Qgis.SensorThingsEntity.Thing),
[Qgis.SensorThingsEntity.HistoricalLocation,
Qgis.SensorThingsEntity.Datastream
]
)
def test_filter_for_extent(self):
"""
Test constructing valid filter strings for features which intersect
an extent
"""
self.assertFalse(QgsSensorThingsUtils.filterForExtent('', QgsRectangle()))
self.assertFalse(QgsSensorThingsUtils.filterForExtent('test', QgsRectangle()))
self.assertFalse(QgsSensorThingsUtils.filterForExtent('', QgsRectangle(1, 2, 3, 4)))
self.assertEqual(QgsSensorThingsUtils.filterForExtent('test', QgsRectangle(1, 2, 3, 4)),
"geo.intersects(test, geography'Polygon ((1 2, 3 2, 3 4, 1 4, 1 2))')")
def test_combine_filters(self):
"""
Test combining multiple filter strings into one
"""
self.assertFalse(QgsSensorThingsUtils.combineFilters([]))
self.assertFalse(QgsSensorThingsUtils.combineFilters(['']))
self.assertEqual(QgsSensorThingsUtils.combineFilters(['', 'a eq 1']), 'a eq 1')
self.assertEqual(QgsSensorThingsUtils.combineFilters(['a eq 1', 'b eq 2']), '(a eq 1) and (b eq 2)')
self.assertEqual(QgsSensorThingsUtils.combineFilters(['a eq 1', '', 'b eq 2', 'c eq 3']),
'(a eq 1) and (b eq 2) and (c eq 3)')
def test_invalid_layer(self):
"""
Test construction of layers using bad URLs
"""
vl = QgsVectorLayer(
"url='http://fake.com/fake_qgis_http_endpoint'", "test", "sensorthings"
)
self.assertFalse(vl.isValid())
self.assertEqual(
vl.dataProvider().error().summary()[:32], "Connection failed: Error opening"
)
self.assertEqual(
vl.dataProvider().error().summary()[-25:], "No such file or directory"
)
def test_layer_invalid_json(self):
"""
Test that connecting to services which return non-parsable JSON
are cleanly handled (i.e. no crashes!)
"""
with tempfile.TemporaryDirectory() as temp_dir:
base_path = temp_dir.replace("\\", "/")
endpoint = base_path + "/fake_qgis_http_endpoint"
with open(sanitize(endpoint, ""), "wt", encoding="utf8") as f:
f.write(
"""
{
"value": ["""
)
vl = QgsVectorLayer(f"url='http://{endpoint}'", "test", "sensorthings")
self.assertFalse(vl.isValid())
self.assertIn("parse error", vl.dataProvider().error().summary())
def test_layer(self):
"""
Test construction of a basic layer using a valid SensorThings endpoint
"""
with tempfile.TemporaryDirectory() as temp_dir:
base_path = temp_dir.replace("\\", "/")
endpoint = base_path + "/fake_qgis_http_endpoint"
with open(sanitize(endpoint, ""), "wt", encoding="utf8") as f:
f.write(
"""
{
"value": [
{
"name": "Datastreams",
"url": "endpoint/Datastreams"
},
{
"name": "MultiDatastreams",
"url": "endpoint/MultiDatastreams"
},
{
"name": "FeaturesOfInterest",
"url": "endpoint/FeaturesOfInterest"
},
{
"name": "HistoricalLocations",
"url": "endpoint/HistoricalLocations"
},
{
"name": "Locations",
"url": "endpoint/Locations"
},
{
"name": "Observations",
"url": "endpoint/Observations"
},
{
"name": "ObservedProperties",
"url": "endpoint/ObservedProperties"
},
{
"name": "Sensors",
"url": "endpoint/Sensors"
},
{
"name": "Things",
"url": "endpointThings"
}
],
"serverSettings": {
}
}""".replace(
"endpoint", "http://" + endpoint
)
)
with open(
sanitize(endpoint, "/Locations?$top=0&$count=true&$filter=location/type eq 'Point' or location/geometry/type eq 'Point'"),
"wt",
encoding="utf8",
) as f:
f.write("""{"@iot.count":4962,"value":[]}""")
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=PointZ entity='Location'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
self.assertEqual(vl.storageType(), "OGC SensorThings API")
self.assertEqual(vl.wkbType(), Qgis.WkbType.PointZ)
# pessimistic "worst case" extent should be used
self.assertEqual(vl.extent(), QgsRectangle(-180, -90, 180, 90))
self.assertEqual(vl.featureCount(), 4962)
self.assertIn("Entity Type</td><td>Location</td>", vl.htmlMetadata())
self.assertIn(f'href="http://{endpoint}/Locations"', vl.htmlMetadata())
# As multipoint
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=MultiPointZ entity='Location'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), Qgis.WkbType.MultiPointZ)
# As line
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=MultiLineStringZ entity='Location'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), Qgis.WkbType.MultiLineStringZ)
# As polygon
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=MultiPolygonZ entity='Location'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), Qgis.WkbType.MultiPolygonZ)
def test_thing(self):
"""
Test a layer retrieving 'Thing' entities from a service
"""
with tempfile.TemporaryDirectory() as temp_dir:
base_path = temp_dir.replace("\\", "/")
endpoint = base_path + "/fake_qgis_http_endpoint"
with open(sanitize(endpoint, ""), "wt", encoding="utf8") as f:
f.write(
"""
{
"value": [
{
"name": "Things",
"url": "endpoint/Things"
}
],
"serverSettings": {
}
}""".replace(
"endpoint", "http://" + endpoint
)
)
with open(
sanitize(endpoint, "/Things?$top=0&$count=true"),
"wt",
encoding="utf8",
) as f:
f.write("""{"@iot.count":3,"value":[]}""")
with open(
sanitize(endpoint, "/Things?$top=2&$count=false"),
"wt",
encoding="utf8",
) as f:
f.write(
"""
{
"value": [
{
"@iot.selfLink": "endpoint/Things(1)",
"@iot.id": 1,
"name": "Thing 1",
"description": "Desc 1",
"properties": {
"owner": "owner 1"
},
"Locations@iot.navigationLink": "endpoint/Things(1)/Locations",
"HistoricalLocations@iot.navigationLink": "endpoint/Things(1)/HistoricalLocations",
"Datastreams@iot.navigationLink": "endpoint/Things(1)/Datastreams",
"MultiDatastreams@iot.navigationLink": "endpoint/Things(1)/MultiDatastreams"
},
{
"@iot.selfLink": "endpoint/Things(2)",
"@iot.id": 2,
"name": "Thing 2",
"description": "Desc 2",
"properties": {
"owner": "owner 2"
},
"Locations@iot.navigationLink": "endpoint/Things(2)/Locations",
"HistoricalLocations@iot.navigationLink": "endpoint/Things(2)/HistoricalLocations",
"Datastreams@iot.navigationLink": "endpoint/Things(2)/Datastreams",
"MultiDatastreams@iot.navigationLink": "endpoint/Things(2)/MultiDatastreams"
}
],
"@iot.nextLink": "endpoint/Things?$top=2&$skip=2"
}
""".replace(
"endpoint", "http://" + endpoint
)
)
with open(
sanitize(endpoint, "/Things?$top=2&$skip=2"),
"wt",
encoding="utf8",
) as f:
f.write(
"""
{
"value": [
{
"@iot.selfLink": "endpoint/Things(3)",
"@iot.id": 3,
"name": "Thing 3",
"description": "Desc 3",
"properties": {
"owner": "owner 3"
},
"Locations@iot.navigationLink": "endpoint/Things(3)/Locations",
"HistoricalLocations@iot.navigationLink": "endpoint/Things(3)/HistoricalLocations",
"Datastreams@iot.navigationLink": "endpoint/Things(3)/Datastreams",
"MultiDatastreams@iot.navigationLink": "endpoint/Things(3)/MultiDatastreams"
}
]
}
""".replace(
"endpoint", "http://" + endpoint
)
)
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=PointZ pageSize=2 entity='Thing'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
# basic layer properties tests
self.assertEqual(vl.storageType(), "OGC SensorThings API")
self.assertEqual(vl.wkbType(), Qgis.WkbType.NoGeometry)
self.assertTrue(vl.extent().isNull())
self.assertEqual(vl.featureCount(), 3)
self.assertFalse(vl.crs().isValid())
self.assertIn("Entity Type</td><td>Thing</td>", vl.htmlMetadata())
self.assertIn(f'href="http://{endpoint}/Things"', vl.htmlMetadata())
self.assertEqual(
[f.name() for f in vl.fields()],
[
"id",
"selfLink",
"name",
"description",
"properties",
],
)
self.assertEqual(
[f.type() for f in vl.fields()],
[
QVariant.String,
QVariant.String,
QVariant.String,
QVariant.String,
QVariant.Map,
],
)
# test retrieving all features from layer
features = list(vl.getFeatures())
self.assertEqual([f.id() for f in features], [0, 1, 2])
self.assertEqual([f["id"] for f in features], ["1", "2", "3"])
self.assertEqual(
[f["selfLink"][-10:] for f in features],
["/Things(1)", "/Things(2)", "/Things(3)"],
)
self.assertEqual(
[f["name"] for f in features], ["Thing 1", "Thing 2", "Thing 3"]
)
self.assertEqual(
[f["description"] for f in features], ["Desc 1", "Desc 2", "Desc 3"]
)
self.assertEqual(
[f["properties"] for f in features],
[{"owner": "owner 1"}, {"owner": "owner 2"}, {"owner": "owner 3"}],
)
def test_location(self):
"""
Test a layer retrieving 'Location' entities from a service
"""
with tempfile.TemporaryDirectory() as temp_dir:
base_path = temp_dir.replace("\\", "/")
endpoint = base_path + "/fake_qgis_http_endpoint"
with open(sanitize(endpoint, ""), "wt", encoding="utf8") as f:
f.write(
"""
{
"value": [
{
"name": "Locations",
"url": "endpoint/Locations"
}
],
"serverSettings": {
}
}""".replace(
"endpoint", "http://" + endpoint
)
)
with open(
sanitize(endpoint, "/Locations?$top=0&$count=true&$filter=location/type eq 'Point' or location/geometry/type eq 'Point'"),
"wt",
encoding="utf8",
) as f:
f.write("""{"@iot.count":3,"value":[]}""")
with open(
sanitize(endpoint, "/Locations?$top=2&$count=false&$filter=location/type eq 'Point' or location/geometry/type eq 'Point'"),
"wt",
encoding="utf8",
) as f:
f.write(
"""
{
"value": [
{
"@iot.selfLink": "endpoint/Locations(1)",
"@iot.id": 1,
"name": "Location 1",
"description": "Desc 1",
"encodingType": "application/geo+json",
"location": {
"type": "Point",
"coordinates": [
11.6,
52.1
]
},
"properties": {
"owner": "owner 1"
},
"Things@iot.navigationLink": "endpoint/Locations(1)/Things",
"HistoricalLocations@iot.navigationLink": "endpoint/Locations(1)/HistoricalLocations"
},
{
"@iot.selfLink": "endpoint/Locations(2)",
"@iot.id": 2,
"name": "Location 2",
"description": "Desc 2",
"encodingType": "application/geo+json",
"location": {
"type": "Point",
"coordinates": [
12.6,
53.1
]
},
"properties": {
"owner": "owner 2"
},
"Things@iot.navigationLink": "endpoint/Locations(2)/Things",
"HistoricalLocations@iot.navigationLink": "endpoint/Locations(2)/HistoricalLocations"
}
],
"@iot.nextLink": "endpoint/Locations?$top=2&$skip=2&$filter=location/type eq 'Point' or location/geometry/type eq 'Point'"
}
""".replace(
"endpoint", "http://" + endpoint
)
)
with open(
sanitize(endpoint, "/Locations?$top=2&$skip=2&$filter=location/type eq 'Point' or location/geometry/type eq 'Point'"),
"wt",
encoding="utf8",
) as f:
f.write(
"""
{
"value": [
{
"@iot.selfLink": "endpoint/Locations(3)",
"@iot.id": 3,
"name": "Location 3",
"description": "Desc 3",
"encodingType": "application/geo+json",
"location": {
"type": "Point",
"coordinates": [
13.6,
55.1
]
},
"properties": {
"owner": "owner 3"
},
"Things@iot.navigationLink": "endpoint/Locations(3)/Things",
"HistoricalLocations@iot.navigationLink": "endpoint/Locations(3)/HistoricalLocations"
}
]
}
""".replace(
"endpoint", "http://" + endpoint
)
)
vl = QgsVectorLayer(
f"url='http://{endpoint}' type=PointZ pageSize=2 entity='Location'",
"test",
"sensorthings",
)
self.assertTrue(vl.isValid())
# basic layer properties tests
self.assertEqual(vl.storageType(), "OGC SensorThings API")
self.assertEqual(vl.wkbType(), Qgis.WkbType.PointZ)
# pessimistic "worst case" extent should initially be used
self.assertEqual(vl.extent(), QgsRectangle(-180, -90, 180, 90))
self.assertEqual(vl.featureCount(), 3)
self.assertEqual(vl.crs().authid(), "EPSG:4326")
self.assertIn("Entity Type</td><td>Location</td>", vl.htmlMetadata())
self.assertIn(f'href="http://{endpoint}/Locations"', vl.htmlMetadata())
self.assertEqual(
[f.name() for f in vl.fields()],
[
"id",
"selfLink",
"name",
"description",
"properties",
],
)
self.assertEqual(
[f.type() for f in vl.fields()],
[
QVariant.String,
QVariant.String,
QVariant.String,
QVariant.String,
QVariant.Map,
],
)