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import logging
import pytest
from pystac import Asset, Catalog, Collection, Item, Link
from pystac.errors import ExtensionNotImplemented
from pystac.extensions.ext import (
EXTENSION_NAME_MAPPING,
EXTENSION_NAMES,
AssetExt,
CatalogExt,
CollectionExt,
ItemExt,
LinkExt,
)
from tests.conftest import get_data_file
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger()
@pytest.fixture
def eo_ext_item() -> Item:
ext_item_uri = get_data_file("eo/eo-landsat-example.json")
return Item.from_file(ext_item_uri)
def test_ext_syntax_has(eo_ext_item: Item) -> None:
assert eo_ext_item.ext.has("eo") is True
assert eo_ext_item.ext.has("proj") is False
assert eo_ext_item.assets["B1"].ext.has("eo") is True
assert eo_ext_item.assets["B1"].ext.has("proj") is False
def test_ext_syntax_raises_if_ext_not_on_obj(eo_ext_item: Item) -> None:
with pytest.raises(ExtensionNotImplemented):
eo_ext_item.ext.proj.epsg
def test_ext_syntax_ext_can_be_added(eo_ext_item: Item) -> None:
eo_ext_item.ext.add("proj")
assert eo_ext_item.ext.proj.epsg is None
def test_ext_syntax_trying_to_add_invalid_ext_raises(item: Item) -> None:
with pytest.raises(KeyError, match="Extension 'foo' is not a valid extension"):
item.ext.add("foo") # type: ignore
def test_ext_syntax_ext_can_be_removed(eo_ext_item: Item) -> None:
original_n = len(eo_ext_item.stac_extensions)
eo_ext_item.ext.remove("eo")
with pytest.raises(
ExtensionNotImplemented, match="Extension 'eo' is not implemented"
):
eo_ext_item.ext.eo
assert len(eo_ext_item.stac_extensions) == original_n - 1
all_link_ext_props = {a for a in dir(LinkExt) if not a.startswith("_")} - {
"has",
"add",
"remove",
}
all_asset_ext_props = {a for a in dir(AssetExt) if not a.startswith("_")} - {
"has",
"add",
"remove",
}
all_item_ext_props = {a for a in dir(ItemExt) if not a.startswith("_")} - {
"has",
"add",
"remove",
}
all_collection_ext_props = {a for a in dir(CollectionExt) if not a.startswith("_")} - {
"has",
"add",
"remove",
}
all_catalog_ext_props = {a for a in dir(CatalogExt) if not a.startswith("_")} - {
"has",
"add",
"remove",
}
@pytest.mark.parametrize("name", all_link_ext_props)
def test_ext_syntax_every_prop_can_be_added_to_link(
link: Link, name: EXTENSION_NAMES
) -> None:
assert link.ext.has(name) is False
link.ext.add(name)
assert link.ext.has(name) is True
link.ext.remove(name)
with pytest.raises(
ExtensionNotImplemented, match=f"Extension '{name}' is not implemented"
):
getattr(link.ext, name)
@pytest.mark.parametrize("name", all_asset_ext_props)
def test_ext_syntax_every_prop_can_be_added_to_asset(
asset: Asset, name: EXTENSION_NAMES
) -> None:
assert asset.ext.has(name) is False
asset.ext.add(name)
assert asset.ext.has(name) is True
asset.ext.remove(name)
with pytest.raises(
ExtensionNotImplemented, match=f"Extension '{name}' is not implemented"
):
getattr(asset.ext, name)
@pytest.mark.parametrize("name", all_item_ext_props)
def test_ext_syntax_every_prop_can_be_added_to_item(
item: Item, name: EXTENSION_NAMES
) -> None:
assert item.ext.has(name) is False
item.ext.add(name)
assert item.ext.has(name) is True
item.ext.remove(name)
with pytest.raises(
ExtensionNotImplemented, match=f"Extension '{name}' is not implemented"
):
getattr(item.ext, name)
@pytest.mark.parametrize("name", all_collection_ext_props)
def test_ext_syntax_every_prop_can_be_added_to_collection(
collection: Collection, name: EXTENSION_NAMES
) -> None:
assert collection.ext.has(name) is False
collection.ext.add(name)
assert collection.ext.has(name) is True
collection.ext.remove(name)
with pytest.raises(
ExtensionNotImplemented, match=f"Extension '{name}' is not implemented"
):
getattr(collection.ext, name)
@pytest.mark.parametrize("name", all_catalog_ext_props)
def test_ext_syntax_every_prop_can_be_added_to_catalog(
catalog: Catalog, name: EXTENSION_NAMES
) -> None:
assert catalog.ext.has(name) is False
catalog.ext.add(name)
assert catalog.ext.has(name) is True
catalog.ext.remove(name)
with pytest.raises(
ExtensionNotImplemented, match=f"Extension '{name}' is not implemented"
):
getattr(catalog.ext, name)
def test_ext_syntax_every_name_has_a_prop() -> None:
assert {
*all_asset_ext_props,
*all_item_ext_props,
*all_collection_ext_props,
} == set(EXTENSION_NAME_MAPPING.keys())
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