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import mapnik
try:
import json
except ImportError:
import simplejson as json
chars = [
{
"name": "single_quote",
"test": "string with ' quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \' quote"}}'
},
{
"name": "escaped_single_quote",
"test": "string with \' quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \' quote"}}'
},
{
"name": "double_quote",
"test": 'string with " quote',
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\" quote"}}'
},
{
"name": "double_quote2",
"test": "string with \" quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\" quote"}}'
},
{
"name": "reverse_solidus", # backslash
"test": "string with \\ quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\\ quote"}}'
},
{
"name": "solidus", # forward slash
"test": "string with / quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with / quote"}}'
},
{
"name": "backspace",
"test": "string with \b quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\b quote"}}'
},
{
"name": "formfeed",
"test": "string with \f quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\f quote"}}'
},
{
"name": "newline",
"test": "string with \n quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\n quote"}}'
},
{
"name": "carriage_return",
"test": "string with \r quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\r quote"}}'
},
{
"name": "horiztonal_tab",
"test": "string with \t quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\t quote"}}'
},
# remainder are c++ reserved, but not json
{
"name": "vert_tab",
"test": "string with \v quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\u000b quote"}}'
},
{
"name": "alert",
"test": "string with \a quote",
"json": '{"type":"Feature","id":1,"geometry":null,"properties":{"name":"string with \\u0007 quote"}}'
}
]
ctx = mapnik.Context()
ctx.push('name')
def test_char_escaping():
for char in chars:
feat = mapnik.Feature(ctx, 1)
expected = char['test']
feat["name"] = expected
assert feat["name"] == expected
# confirm the python json module
# is working as we would expect
pyjson2 = json.loads(char['json'])
assert pyjson2['properties']['name'] == expected
# confirm our behavior is the same as python json module
# for the original string
geojson_feat_string = feat.to_geojson()
assert geojson_feat_string == char['json'], "Mapnik's json escaping is not to spec: actual(%s) and expected(%s) for %s" % (geojson_feat_string, char['json'], char['name'])
# and the round tripped string
pyjson = json.loads(geojson_feat_string)
assert pyjson['properties']['name'] == expected
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