MockRequest.post constructor
Implementation
MockRequest.post(String path, String body, {Map<String,String> headers = const {}}) :
method = "POST",
uri = Uri(path:path),
this.headers = MockHeaders(headers),
super(Stream.fromIterable(Uint8List.fromList(body.codeUnits).map((e) => Uint8List.fromList([e])))) {
}