Add test for reference file as json on planetary computer (#10)

jsignell · web-flow · commit dfeab545f44d · 2023-03-10T09:50:57.000-05:00
diff --git a/README.md b/README.md
@@ -5,14 +5,18 @@ The goal is that as long as this library is in your env, you should never need t
 
 ## Example
 
+Search collection of COGs example:
+
 ```python
-from pystac_client import Client
+import pystac_client
 import xarray as xr
 
 
-client = Client.open("https://earth-search.aws.element84.com/v0")
+catalog = pystac_client.Client.open(
+    "https://earth-search.aws.element84.com/v0"
+)
 
-search = client.search(
+search = catalog.search(
     intersects=dict(type="Point", coordinates=[-105.78, 35.79]),
     collections=['sentinel-s2-l2a-cogs'],
     datetime="2020-04-01/2020-05-01",
@@ -21,6 +25,26 @@ search = client.search(
 xr.open_dataset(search, engine="stac")
 ```
 
+Reference file example:
+
+```python
+import planetary_computer
+import xarray as xr
+import pystac_client
+
+
+catalog = pystac_client.Client.open(
+    "https://planetarycomputer.microsoft.com/api/stac/v1",
+    modifier=planetary_computer.sign_inplace,
+)
+
+collection = catalog.get_collection("nasa-nex-gddp-cmip6")
+asset = collection.assets["ACCESS-CM2.historical"]
+
+xr.open_dataset(asset)
+```
+
+
 ## Install
 
 ```bash
diff --git a/environment.yaml b/environment.yaml
@@ -8,6 +8,7 @@ dependencies:
   - pystac
   - xarray
   # optional
+  - aiohttp
   - fsspec
   - planetary-computer
   - pystac-client
diff --git a/tests/cassettes/fixtures/simple_reference_file.yaml b/tests/cassettes/fixtures/simple_reference_file.yaml
@@ -0,0 +1,274 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate, br
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-requests/2.28.2
+    method: GET
+    uri: https://planetarycomputer.microsoft.com/api/stac/v1
+  response:
+    body:
+      string: !!binary |
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+    headers:
+      Access-Control-Allow-Credentials:
+      - 'true'
+      Access-Control-Allow-Origin:
+      - '*'
+      Content-Encoding:
+      - br
+      Content-Length:
+      - '2925'
+      Content-Type:
+      - application/json
+      Date:
+      - Fri, 10 Mar 2023 14:41:21 GMT
+      Strict-Transport-Security:
+      - max-age=15724800; includeSubDomains
+      Vary:
+      - Accept-Encoding
+      X-Azure-Ref:
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+      X-Cache:
+      - CONFIG_NOCACHE
+    status:
+      code: 200
+      message: OK
+- request:
+    body: null
+    headers:
+      Accept:
+      - '*/*'
+      Accept-Encoding:
+      - gzip, deflate, br
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-requests/2.28.2
+    method: GET
+    uri: https://planetarycomputer.microsoft.com/api/stac/v1/collections/nasa-nex-gddp-cmip6
+  response:
+    body:
+      string: !!binary |
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diff --git a/tests/conftest.py b/tests/conftest.py
@@ -1,3 +1,4 @@
+import planetary_computer
 import pystac
 import pystac_client
 import pytest
@@ -13,7 +14,7 @@
 
 @pytest.fixture(scope="module")
 def simple_item() -> pystac.Item:
-    path = "https://raw.githubusercontent.com/stac-utils/pystac/2.0/tests/data-files/examples/1.0.0/simple-item.json"
+    path = "https://raw.githubusercontent.com/stac-utils/pystac/v1.7.0/tests/data-files/examples/1.0.0/simple-item.json"
     return pystac.Item.from_file(path)
 
 
@@ -33,3 +34,14 @@ def simple_search() -> pystac_client.ItemSearch:
             collections=["sentinel-s2-l2a-cogs"],
             datetime="2020-05-01",
         )
+
+
+@pytest.fixture(scope="module")
+def simple_reference_file() -> pystac.Asset:
+    with vcr.use_cassette("tests/cassettes/fixtures/simple_reference_file.yaml"):
+        client = pystac_client.Client.open(
+            STAC_URLS["PLANETARY-COMPUTER"],
+            modifier=planetary_computer.sign_inplace,
+        )
+        collection = client.get_collection("nasa-nex-gddp-cmip6")
+        return collection.assets["ACCESS-CM2.historical"]
diff --git a/tests/test_core.py b/tests/test_core.py
@@ -21,3 +21,8 @@ def test_to_xarray_with_drop_variables_raises(simple_search):
 def test_to_xarray_with_bad_type():
     with pytest.raises(TypeError):
         to_xarray("foo")
+
+
+def test_to_xarray_reference_file(simple_reference_file):
+    ds = to_xarray(simple_reference_file)
+    assert ds
diff --git a/xpystac/core.py b/xpystac/core.py
@@ -34,7 +34,9 @@ def _(
 def _(obj: pystac.Asset, **kwargs) -> xarray.Dataset:
     open_kwargs = obj.extra_fields.get("xarray:open_kwargs", {})
 
-    if obj.media_type == pystac.MediaType.JSON and "index" in obj.roles:
+    if obj.media_type == pystac.MediaType.JSON and {"index", "references"}.intersection(
+        obj.roles
+    ):
         requests = _import_optional_dependency("requests")
         fsspec = _import_optional_dependency("fsspec")
         r = requests.get(obj.href)
