1No vertices: 2Incidence matrix: 3Row ids: 4( ) 5Col ids: 6( ) 7 8One vertex: 9Incidence matrix: 10Row ids: 11( ) 12Col ids: 13( 0 ) 14 15Disconnected graph with multiple edges: 16Incidence matrix: 17[ 1 3 0 18 1 1 2 19 0 0 0 ] 20Row ids: 21( 0 3 5 ) 22Col ids: 23( 1 2 4 ) 24 25Checking non-bipartite graph. 26Incidence matrix: 27[ 1 3 0 28 1 1 2 29 0 0 0 ] 30Row ids: 31( 0 3 5 ) 32Col ids: 33( 1 2 4 ) 34 35Checking wrong type vector size error handling. 36