added ciao test for reverse coarse radius warning

test/ciao/reverse/boundary_circle_valid_radius_coarse.coffee

@@ -0,0 +1,39 @@
+
+#> bounding circle
+path: '/v1/reverse?layers=coarse&point.lat=40.744243&point.lon=-73.990342&boundary.circle.radius=999.9'
+
+#? 200 ok
+response.statusCode.should.be.equal 200
+response.should.have.header 'charset', 'utf8'
+response.should.have.header 'content-type', 'application/json; charset=utf-8'
+
+#? valid geocoding block
+should.exist json.geocoding
+should.exist json.geocoding.version
+should.exist json.geocoding.attribution
+should.exist json.geocoding.query
+should.exist json.geocoding.engine
+should.exist json.geocoding.engine.name
+should.exist json.geocoding.engine.author
+should.exist json.geocoding.engine.version
+should.exist json.geocoding.timestamp
+
+#? valid geojson
+json.type.should.be.equal 'FeatureCollection'
+json.features.should.be.instanceof Array
+
+#? expected errors
+should.not.exist json.geocoding.errors
+
+#? expected warnings
+should.exist json.geocoding.warnings
+json.geocoding.warnings.should.eql [ 'boundary.circle.radius is not applicable for coarse reverse' ]
+
+#? inputs
+json.geocoding.query['size'].should.eql 10
+json.geocoding.query['layers'].should.eql 'coarse'
+json.geocoding.query['point.lat'].should.eql 40.744243
+json.geocoding.query['point.lon'].should.eql -73.990342
+json.geocoding.query['boundary.circle.lat'].should.eql 40.744243
+json.geocoding.query['boundary.circle.lon'].should.eql -73.990342
+json.geocoding.query['boundary.circle.radius'].should.eql 999.9