    Had to open data source read-only.
    INFO: Open of `/home/mku/dev/cpp/qgis/QGIS/python/plugins/processing/tests/testdata/lines.gml'
          using driver `GML' successful.

    Layer name: lines
    Geometry: Line String
    Feature Count: 6
    Extent: (-1.000000, -3.000000) - (11.000000, 5.000000)
    Layer SRS WKT:
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,
                AUTHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4326"]]
    fid: String (0.0) NOT NULL