code: def test_placename_to_wkt_invalid():
      # tests empty bbox exception in response to bad query
      with pytest.raises(ValueError) as e:
          wkt = placename_to_wkt("!@#$%^")
      assert 'Unable to find a matching location for "!@#$%^"' in str(
          e.value
      )
  
file_path: sentinelsat/tests/test_geographic.py
imports: from datetime import datetime
  import re
  import geojson
  import pytest
  from sentinelsat import geojson_to_wkt, read_geojson, SentinelAPI, placename_to_wkt
label_desc: Use image node_id 7 for calling a global function with example usage: test_placename_to_wkt_invalid() without return types