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v/vlib/json/json_encode_map_test.v

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import json
struct Test {
optional_string ?string
optional_array ?[]string
optional_struct_array ?[]string
optional_map ?map[string]string
}
fn test_main() {
test := Test{}
encoded := json.encode(test)
assert dump(encoded) == '{}'
test2 := Test{
optional_map: {
'foo': 'bar'
}
}
encoded2 := json.encode(test2)
assert dump(encoded2) == '{"optional_map":{"foo":"bar"}}'
}