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test_wms.py
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'''Tests for WMS calls'''
from datetime import datetime
import textwrap
import unittest
from PIL import Image
import numpy as np
import geoengine_openapi_client
import geoengine as ge
from geoengine.colorizer import Colorizer
from geoengine.types import RasterBandDescriptor, SingleBandRasterColorizer
from tests.ge_test import GeoEngineTestInstance
from . import UrllibMocker
class WmsTests(unittest.TestCase):
'''WMS test runner'''
def setUp(self) -> None:
ge.reset(False)
def test_ndvi_image(self):
with UrllibMocker() as m, \
open("tests/responses/wms-ndvi.png", "rb") as ndvi_png, \
open("tests/responses/4326.gml", "rb") as epsg4326_gml:
m.post('http://mock-instance/anonymous', json={
"id": "c4983c3e-9b53-47ae-bda9-382223bd5081",
"project": None,
"view": None
})
m.post('http://mock-instance/workflow',
json={
"id": "5b9508a8-bd34-5a1c-acd6-75bb832d2d38"
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m.get('http://mock-instance/workflow/5b9508a8-bd34-5a1c-acd6-75bb832d2d38/metadata',
json={
"type": "raster",
"dataType": "U8",
"spatialReference": "EPSG:4326",
"bands": [{
"name": "band",
"measurement": {
"type": "unitless"
}
}]
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m.get('http://epsg.io/4326.gml?download', body=epsg4326_gml)
# Unfortunately, we need a separate library to catch the request from the WMS call
with open("tests/responses/wms_capabilities.xml", "r", encoding="utf-8") as wms_capabilities:
m.get(
# pylint: disable=line-too-long
'http://mock-instance/wms/5b9508a8-bd34-5a1c-acd6-75bb832d2d38?service=WMS&request=GetCapabilities&version=1.3.0',
text=wms_capabilities.read())
m.get(
# pylint: disable=line-too-long
'http://mock-instance/wms/5b9508a8-bd34-5a1c-acd6-75bb832d2d38?version=1.3.0&service=WMS&request=GetMap&width=200&height=100&bbox=-90.0%2C-180.0%2C90.0%2C180.0&format=image/png&layers=5b9508a8-bd34-5a1c-acd6-75bb832d2d38&crs=EPSG%3A4326&styles=custom%3A%7B%22band%22%3A%200%2C%20%22bandColorizer%22%3A%20%7B%22breakpoints%22%3A%20%5B%7B%22color%22%3A%20%5B0%2C%200%2C%200%2C%20255%5D%2C%20%22value%22%3A%200.0%7D%2C%20%7B%22color%22%3A%20%5B255%2C%20255%2C%20255%2C%20255%5D%2C%20%22value%22%3A%20255.0%7D%5D%2C%20%22noDataColor%22%3A%20%5B0%2C%200%2C%200%2C%200%5D%2C%20%22overColor%22%3A%20%5B0%2C%200%2C%200%2C%200%5D%2C%20%22type%22%3A%20%22linearGradient%22%2C%20%22underColor%22%3A%20%5B0%2C%200%2C%200%2C%200%5D%7D%2C%20%22type%22%3A%20%22singleBand%22%7D&time=2014-04-01T12%3A00%3A00.000%2B00%3A00',
body=ndvi_png,
)
ge.initialize("http://mock-instance")
workflow_definition = {
"type": "Raster",
"operator": {
"type": "GdalSource",
"params": {
"data": {
"type": "internal",
"datasetId": "36574dc3-560a-4b09-9d22-d5945f2b8093"
}
}
}
}
time = datetime.strptime(
'2014-04-01T12:00:00.000Z', ge.DEFAULT_ISO_TIME_FORMAT)
workflow = ge.register_workflow(workflow_definition)
img = workflow.wms_get_map_as_image(
ge.QueryRectangle(
ge.BoundingBox2D(-180.0, -90.0, 180.0, 90.0),
ge.TimeInterval(time),
resolution=ge.SpatialResolution(1.8, 1.8)
),
raster_colorizer=SingleBandRasterColorizer(
band=0,
band_colorizer=Colorizer.linear_with_mpl_cmap(color_map="gray", min_max=(0.0, 255.0), n_steps=2)
),
)
self.assertEqual(img, Image.open("tests/responses/wms-ndvi.png"))
def test_image_error(self):
# TODO: use `enterContext(cm)` instead of `with cm: ` in Python 3.11
with GeoEngineTestInstance() as ge_instance:
ge_instance.wait_for_ready()
ge.initialize(ge_instance.address())
dataset_name = ge.add_dataset(
data_store=ge.volumes()[0],
properties=ge.AddDatasetProperties(
name=f'{ge.get_session().user_id}:to_fail',
display_name="To Fail",
description="",
source_operator="GdalSource",
symbology=None,
provenance=None,
),
meta_data=geoengine_openapi_client.MetaDataDefinition(
geoengine_openapi_client.GdalMetaDataStatic.from_dict({
"type": "GdalStatic",
"time": None,
"params": geoengine_openapi_client.GdalDatasetParameters.from_dict({
"filePath": "does_not_exist",
"rasterbandChannel": 1,
"geoTransform": ge.GeoTransform(
x_min=-180,
y_max=90,
x_pixel_size=0.1,
y_pixel_size=-0.1,
).to_api_dict(),
"width": 3600,
"height": 1800,
"fileNotFoundHandling": geoengine_openapi_client.FileNotFoundHandling.ERROR, # !!!
"noDataValue": None,
"propertiesMapping": None,
"gdalOpenOptions": None,
"gdalConfigOptions": None,
"allowAlphabandAsMask": True
}),
"resultDescriptor": ge.RasterResultDescriptor(
"U8",
[RasterBandDescriptor("band", ge.UnitlessMeasurement())],
"EPSG:4326",
spatial_bounds=ge.SpatialPartition2D(-180.0, -90.0, 180.0, 90.0),
spatial_resolution=ge.SpatialResolution(0.1, 0.1)
).to_api_dict().to_dict(),
})
),
)
workflow = ge.register_workflow(ge.workflow_builder.operators.GdalSource(dataset_name))
with self.assertRaises(ge.OGCXMLError) as ctx:
workflow.wms_get_map_as_image(
ge.QueryRectangle(
spatial_bounds=ge.BoundingBox2D(-180.0, -90.0, 180.0, 90.0),
time_interval=ge.TimeInterval(np.datetime64('2004-04-01T12:00:00')),
resolution=ge.SpatialResolution(1.8, 1.8)
),
raster_colorizer=SingleBandRasterColorizer(
band=0,
band_colorizer=Colorizer.linear_with_mpl_cmap(color_map="gray", min_max=(0.0, 255.0), n_steps=2)
),
)
self.assertEqual(str(ctx.exception),
'OGC API error: \n Could not open gdal dataset for file path '
'"test_data/does_not_exist"\n ')
def test_result_descriptor(self):
with UrllibMocker() as m:
m.post('http://mock-instance/anonymous', json={
"id": "c4983c3e-9b53-47ae-bda9-382223bd5081",
"project": None,
"view": None
})
m.get('http://mock-instance/workflow/5b9508a8-bd34-5a1c-acd6-75bb832d2d38/metadata',
json={
"type": "raster",
"dataType": "U8",
"spatialReference": "EPSG:4326",
"bands": [{
"name": "band",
"measurement": {
"type": "unitless"
}
}],
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m.get('http://mock-instance/workflow/foo/metadata',
status_code=404,
json={
'error': 'NotFound',
'message': 'Not Found',
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
ge.initialize("http://mock-instance")
workflow = ge.workflow_by_id(
'5b9508a8-bd34-5a1c-acd6-75bb832d2d38')
result_descriptor = workflow.get_result_descriptor()
expected_repr = '''\
Data type: U8
Spatial Reference: EPSG:4326
Bands:
band: unitless
'''
self.assertEqual(
repr(result_descriptor),
textwrap.dedent(expected_repr)
)
with self.assertRaises(ge.NotFoundException) as exception:
workflow = ge.workflow_by_id('foo')
result_descriptor = workflow.get_result_descriptor()
self.assertEqual(str(exception.exception),
'NotFound: Not Found')
if __name__ == '__main__':
unittest.main()