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test_wcs.py
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'''Tests for WCS calls'''
from datetime import datetime
import unittest
import owslib.util
import requests_mock
import numpy as np
import xarray as xr
import geoengine as ge
from . import UrllibMocker
class WcsTests(unittest.TestCase):
'''WCS test runner'''
def setUp(self) -> None:
ge.reset(False)
def test_ndvi(self):
with UrllibMocker() as m_urllib:
m_urllib.post('http://mock-instance/anonymous', json={
"id": "c4983c3e-9b53-47ae-bda9-382223bd5081",
"project": None,
"view": None
})
m_urllib.post('http://mock-instance/workflow',
json={
"id": "8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62"
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m_urllib.get('http://mock-instance/workflow/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/metadata',
json={
"type": "raster",
"dataType": "U8",
"spatialReference": "EPSG:4326",
"bands": [{
"name": "band",
"measurement": {
"type": "unitless"
}
}]
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
ge.initialize("http://mock-instance")
workflow_definition = {
"type": "Raster",
"operator": {
"type": "GdalSource",
"params": {
"data": {
"type": "internal",
"datasetId": "36574dc3-560a-4b09-9d22-d5945f2b8093"
}
}
}
}
workflow = ge.register_workflow(workflow_definition)
with requests_mock.Mocker() as m_requests, open("tests/responses/ndvi.tiff", "rb") as ndvi_tiff:
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?service=WCS&request=GetCapabilities&version=1.1.1',
text='''<?xml version="1.0" encoding="UTF-8"?>
<wcs:Capabilities version="1.1.1"
xmlns:wcs="http://www.opengis.net/wcs/1.1.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wcs/1.1.1 http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/schemas/wcs/1.1.1/wcsGetCapabilities.xsd" updateSequence="152">
<ows:ServiceIdentification>
<ows:Title>Web Coverage Service</ows:Title>
<ows:ServiceType>WCS</ows:ServiceType>
<ows:ServiceTypeVersion>1.1.1</ows:ServiceTypeVersion>
<ows:Fees>NONE</ows:Fees>
<ows:AccessConstraints>NONE</ows:AccessConstraints>
</ows:ServiceIdentification>
<ows:ServiceProvider>
<ows:ProviderName>Provider Name</ows:ProviderName>
</ows:ServiceProvider>
<ows:OperationsMetadata>
<ows:Operation name="GetCapabilities">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="DescribeCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="GetCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
</ows:OperationsMetadata>
<wcs:Contents>
<wcs:CoverageSummary>
<ows:Title>Workflow 8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</ows:Title>
<ows:WGS84BoundingBox>
<ows:LowerCorner>-180.0 -90.0</ows:LowerCorner>
<ows:UpperCorner>180.0 90.0</ows:UpperCorner>
</ows:WGS84BoundingBox>
<wcs:Identifier>8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</wcs:Identifier>
</wcs:CoverageSummary>
</wcs:Contents>
</wcs:Capabilities>''',
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?version=1.1.1&request=GetCoverage&service=WCS&identifier=8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62&boundingbox=-90.0,-180.0,90.0,180.0×equence=2014-04-01T12%3A00%3A00.000%2B00%3A00&format=image/tiff&store=False&crs=urn:ogc:def:crs:EPSG::4326&resx=-22.5&resy=45.0',
body=ndvi_tiff,
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
time = datetime.strptime(
'2014-04-01T12:00:00.000Z', ge.DEFAULT_ISO_TIME_FORMAT)
query = ge.QueryRectangle(
ge.BoundingBox2D(-180.0, -90.0, 180.0, 90.0),
ge.TimeInterval(time),
resolution=ge.SpatialResolution(360. / 8, 180. / 8),
)
array = workflow.get_array(query)
self.assertEqual(array.shape, (8, 8))
expected = np.array([
[255, 255, 21, 11, 255, 255, 255, 255],
[255, 100, 30, 255, 156, 94, 106, 37],
[255, 64, 255, 255, 255, 31, 207, 255],
[255, 255, 255, 255, 89, 255, 255, 255],
[255, 255, 243, 255, 186, 255, 255, 255],
[255, 255, 115, 255, 139, 255, 255, 255],
[255, 255, 255, 255, 255, 255, 255, 255],
[255, 255, 255, 255, 255, 255, 255, 255]])
self.assertTrue(np.array_equal(array, expected))
def test_error(self):
with UrllibMocker() as m_urllib:
m_urllib.post('http://mock-instance/anonymous', json={
"id": "c4983c3e-9b53-47ae-bda9-382223bd5081",
"project": None,
"view": None
})
m_urllib.post('http://mock-instance/workflow',
json={
"id": "8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62"
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m_urllib.get('http://mock-instance/workflow/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/metadata',
json={
"type": "raster",
"dataType": "U8",
"spatialReference": "EPSG:4326",
"bands": [{
"name": "band",
"measurement": {
"type": "unitless"
}
}]
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
ge.initialize("http://mock-instance")
workflow_definition = {
"type": "Raster",
"operator": {
"type": "GdalSource",
"params": {
"data": {
"type": "internal",
"datasetId": "36574dc3-560a-4b09-9d22-d5945f2b8093"
}
}
}
}
workflow = ge.register_workflow(workflow_definition)
with requests_mock.Mocker() as m_requests:
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?service=WCS&request=GetCapabilities&version=1.1.1',
text='''<?xml version="1.0" encoding="UTF-8"?>
<wcs:Capabilities version="1.1.1"
xmlns:wcs="http://www.opengis.net/wcs/1.1.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wcs/1.1.1 http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/schemas/wcs/1.1.1/wcsGetCapabilities.xsd" updateSequence="152">
<ows:ServiceIdentification>
<ows:Title>Web Coverage Service</ows:Title>
<ows:ServiceType>WCS</ows:ServiceType>
<ows:ServiceTypeVersion>1.1.1</ows:ServiceTypeVersion>
<ows:Fees>NONE</ows:Fees>
<ows:AccessConstraints>NONE</ows:AccessConstraints>
</ows:ServiceIdentification>
<ows:ServiceProvider>
<ows:ProviderName>Provider Name</ows:ProviderName>
</ows:ServiceProvider>
<ows:OperationsMetadata>
<ows:Operation name="GetCapabilities">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="DescribeCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="GetCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
</ows:OperationsMetadata>
<wcs:Contents>
<wcs:CoverageSummary>
<ows:Title>Workflow 8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</ows:Title>
<ows:WGS84BoundingBox>
<ows:LowerCorner>-180.0 -90.0</ows:LowerCorner>
<ows:UpperCorner>180.0 90.0</ows:UpperCorner>
</ows:WGS84BoundingBox>
<wcs:Identifier>8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</wcs:Identifier>
</wcs:CoverageSummary>
</wcs:Contents>
</wcs:Capabilities>''',
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?version=1.1.1&request=GetCoverage&service=WCS&identifier=8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62&boundingbox=-90.0,-180.0,90.0,180.0×equence=2014-04-01T12%3A00%3A00.000%2B00%3A00&format=image/tiff&store=False&crs=urn:ogc:def:crs:EPSG::4326&resx=-22.5&resy=45.0',
json={
"error": "Operator",
"message": 'Operator: Could not open gdal dataset for file path '
'"test_data/raster/modis_ndvi/MOD13A2_M_NDVI_2004-04-01.TIFF"'
},
status_code=400,
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
time = datetime.strptime(
'2014-04-01T12:00:00.000Z', ge.DEFAULT_ISO_TIME_FORMAT)
query = ge.QueryRectangle(
ge.BoundingBox2D(-180.0, -90.0, 180.0, 90.0),
ge.TimeInterval(time, time),
resolution=ge.SpatialResolution(360. / 8, 180. / 8),
)
with self.assertRaises(owslib.util.ServiceException) as ctx:
workflow.get_array(query)
self.assertEqual(str(ctx.exception),
'{"error": "Operator", "message": "Operator: Could not open gdal dataset for file path '
'\\"test_data/raster/modis_ndvi/MOD13A2_M_NDVI_2004-04-01.TIFF\\""}')
def test_ndvi_xarray(self):
with UrllibMocker() as m_urllib:
m_urllib.post('http://mock-instance/anonymous', json={
"id": "c4983c3e-9b53-47ae-bda9-382223bd5081",
"project": None,
"view": None
})
m_urllib.post('http://mock-instance/workflow',
json={
"id": "8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62"
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
m_urllib.get('http://mock-instance/workflow/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/metadata',
json={
"type": "raster",
"dataType": "U8",
"spatialReference": "EPSG:4326",
"bands": [{
"name": "band",
"measurement": {
"type": "unitless"
}
}]
},
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'})
ge.initialize("http://mock-instance")
workflow_definition = {
"type": "Raster",
"operator": {
"type": "GdalSource",
"params": {
"data": {
"type": "internal",
"datasetId": "36574dc3-560a-4b09-9d22-d5945f2b8093"
}
}
}
}
workflow = ge.register_workflow(workflow_definition)
with requests_mock.Mocker() as m_requests, open("tests/responses/ndvi.tiff", "rb") as ndvi_tiff:
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?version=1.1.1&request=GetCoverage&service=WCS&identifier=8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62&boundingbox=-90.0,-180.0,90.0,180.0×equence=2014-04-01T12%3A00%3A00.000%2B00%3A00&format=image/tiff&store=False&crs=urn:ogc:def:crs:EPSG::4326&resx=-22.5&resy=45.0',
body=ndvi_tiff,
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
m_requests.get(
# pylint: disable=line-too-long
'http://mock-instance/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?service=WCS&request=GetCapabilities&version=1.1.1',
text='''<?xml version="1.0" encoding="UTF-8"?>
<wcs:Capabilities version="1.1.1"
xmlns:wcs="http://www.opengis.net/wcs/1.1.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/wcs/1.1.1 http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62/schemas/wcs/1.1.1/wcsGetCapabilities.xsd" updateSequence="152">
<ows:ServiceIdentification>
<ows:Title>Web Coverage Service</ows:Title>
<ows:ServiceType>WCS</ows:ServiceType>
<ows:ServiceTypeVersion>1.1.1</ows:ServiceTypeVersion>
<ows:Fees>NONE</ows:Fees>
<ows:AccessConstraints>NONE</ows:AccessConstraints>
</ows:ServiceIdentification>
<ows:ServiceProvider>
<ows:ProviderName>Provider Name</ows:ProviderName>
</ows:ServiceProvider>
<ows:OperationsMetadata>
<ows:Operation name="GetCapabilities">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="DescribeCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
<ows:Operation name="GetCoverage">
<ows:DCP>
<ows:HTTP>
<ows:Get xlink:href="http://localhost:3030/wcs/8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62?"/>
</ows:HTTP>
</ows:DCP>
</ows:Operation>
</ows:OperationsMetadata>
<wcs:Contents>
<wcs:CoverageSummary>
<ows:Title>Workflow 8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</ows:Title>
<ows:WGS84BoundingBox>
<ows:LowerCorner>-180.0 -90.0</ows:LowerCorner>
<ows:UpperCorner>180.0 90.0</ows:UpperCorner>
</ows:WGS84BoundingBox>
<wcs:Identifier>8df9b0e6-e4b4-586e-90a3-6cf0f08c4e62</wcs:Identifier>
</wcs:CoverageSummary>
</wcs:Contents>
</wcs:Capabilities>''',
request_headers={'Authorization': 'Bearer c4983c3e-9b53-47ae-bda9-382223bd5081'},
)
time = datetime.strptime(
'2014-04-01T12:00:00.000Z', ge.DEFAULT_ISO_TIME_FORMAT)
query = ge.QueryRectangle(
ge.BoundingBox2D(-180.0, -90.0, 180.0, 90.0),
ge.TimeInterval(time),
resolution=ge.SpatialResolution(360. / 8, 180. / 8),
)
array = workflow.get_xarray(query)
self.assertEqual(array.shape, (1, 8, 8))
expected = xr.DataArray(
np.array([[
[255, 255, 21, 11, 255, 255, 255, 255],
[255, 100, 30, 255, 156, 94, 106, 37],
[255, 64, 255, 255, 255, 31, 207, 255],
[255, 255, 255, 255, 89, 255, 255, 255],
[255, 255, 243, 255, 186, 255, 255, 255],
[255, 255, 115, 255, 139, 255, 255, 255],
[255, 255, 255, 255, 255, 255, 255, 255],
[255, 255, 255, 255, 255, 255, 255, 255]
]], dtype=np.uint8),
coords={
'band': [1],
'x': [-157.5, -112.5, -67.5, -22.5, 22.5, 67.5, 112.5, 157.5],
'y': [78.75, 56.25, 33.75, 11.25, -11.25, -33.75, -56.25, -78.75],
'spatial_ref': 0,
},
dims=["band", "y", "x"],
attrs={
# 'AREA_OR_POINT': 'Area', # TODO: not included in min_version
# 'transform': TODO: could be "(45.0, 0.0, -180.0, 0.0, -22.5, 90.0, 0.0, 0.0, 1.0)" or "Affine ..."
# 'crs': " TODO: could be "CRS.from_wkt(..." or "CRS.from_epsg(..."
'res': (45.0, -22.5),
'scale_factor': 1.0,
'_FillValue': 0.0,
'add_offset': 0.0,
},
)
# test actual array data
self.assertTrue(np.array_equal(array.data, expected.data), msg=f'{array.data} \n!=\n {expected.data}')
# test dims
self.assertEqual(array.dims, expected.dims, msg=f'{array.dims} \n!=\n {expected.dims}')
# test coords
self.assertTrue(
np.array_equal(
array.coords,
expected.coords),
msg=f'{array.coords} \n!=\n {expected.coords}')
# test attributes
# Since OWSLib produces different outputs depending on its version, we don't test equality on attributes.
# Instead, we only check the expected attributes (the ones we need) and ignore the rest.
# Problematic attributes are:
# "AREA_OR_POINT": This is not available with OWSLib min_version.
# "transform": This used to be a tuple but in newer versions it is an instance of "Affine".
# "crs": OWS "CRS.from_wkt(..." or "CRS.from_epsg(..." depending on the OWSLib version.
self.assertEqual(
array.attrs, array.attrs | expected.attrs, msg=f'{array.attrs} \n!=\n {expected.attrs}'
)
if __name__ == '__main__':
unittest.main()