Ensure right error type for get() on nonexistent (fsspec#695)

Author: martindurant

gcsfs/core.py

@@ -1622,7 +1622,7 @@ async def _get_file_request(
             headers=self._get_headers(headers),
             timeout=self.requests_timeout,
         ) as r:
-            r.raise_for_status()
+            validate_response(r.status, None, rpath)
             try:
                 size = int(r.headers["content-length"])
             except (KeyError, ValueError):

gcsfs/tests/test_core.py

@@ -1697,3 +1697,8 @@ def test_near_find(gcs):
     gcs.touch(f"{TEST_BUCKET}/inner/aa/file")
     out = gcs.find(f"{TEST_BUCKET}/inner/a")
     assert not out
+
+
+def test_get_error(gcs):
+    with pytest.raises(FileNotFoundError):
+        gcs.get_file(f"{TEST_BUCKET}/doesnotexist", "other")