"a stroke is found in a very simple network"
"a ring with a branch is recognized as one stroke"
"more strokes are recognized in a ring with multiple branches"
"sfnetworks objects can be used in input"
"proper attributes are returned for a very simple network"
"proper attributes are returned for a more complex network"
"two linesegments are always merged if threshold is zero"
"a more complex network with no threshold form a stroke"
"a more complex network with threshold does not form strokes"
"attributes cannot be returned if not in flow mode"
"Stroke attributes can be returned only if `flow_mode = TRUE`)"
"edges can be split if flow_mode is false"
"edges are not split if flow_mode is true"
"a ring is recognized as a stroke also in flow_mode"
"strokes can be formed starting from a given edge"
"strokes can be formed starting from a given a list of edge ids"
"same strokes can be formed when one of the edges is reversed"
"attributes can't be returned if edge is specified"
"from_edge is not compatible with attributes or flow_mode"
"a ring is recognized when from_edge is specified"
"flow mode does not break edges on a real dataset"

flow mode does not break edges on a real dataset