Remove xfail tests when new httpx is released

[simonw]

My httpx pull request adding raw_path support was just merged: encode/httpx#1357 - but it's not in a release yet.

I'm going to mark these tests as xfail so I can land this change - I'll remove that once an httpx release comes out that I can use to get the tests passing.

Originally posted by @simonw in #1000 (comment)

[simonw]

datasette/tests/test_html.py

Lines 145 to 149 in 9f6dd98

	@pytest.mark.xfail
	def test_row_strange_table_name_with_url_hash(app_client_with_hash):
	response = app_client_with_hash.get(
	"/fixtures/table%2Fwith%2Fslashes.csv/3", allow_redirects=False
	)

datasette/tests/test_html.py

Lines 539 to 564 in 9f6dd98

	@pytest.mark.xfail
	@pytest.mark.parametrize(
	"path,expected_classes",
	[
	("/", ["index"]),
	("/fixtures", ["db", "db-fixtures"]),
	("/fixtures?sql=select+1", ["query", "db-fixtures"]),
	(
	"/fixtures/simple_primary_key",
	["table", "db-fixtures", "table-simple_primary_key"],
	),
	(
	"/fixtures/neighborhood_search",
	["query", "db-fixtures", "query-neighborhood_search"],
	),
	(
	"/fixtures/table%2Fwith%2Fslashes.csv",
	["table", "db-fixtures", "table-tablewithslashescsv-fa7563"],
	),
	(
	"/fixtures/simple_primary_key/1",
	["row", "db-fixtures", "table-simple_primary_key"],
	),
	],
	)
	def test_css_classes_on_body(app_client, path, expected_classes):

datasette/tests/test_api.py

Lines 1190 to 1194 in 8f97b9b

	@pytest.mark.xfail
	def test_row_strange_table_name(app_client):
	response = app_client.get(
	"/fixtures/table%2Fwith%2Fslashes.csv/3.json?_shape=objects"
	)

datasette/tests/test_api.py

Lines 742 to 746 in 8f97b9b

	@pytest.mark.xfail
	def test_table_with_slashes_in_name(app_client):
	response = app_client.get(
	"/fixtures/table%2Fwith%2Fslashes.csv?_shape=objects&_format=json"
	)

[simonw]

Tracking ticket for the next HTTPX release is encode/httpx#1403

[simonw]

It's out! https://github.com/encode/httpx/releases/tag/0.17.0