# %TEST-EXEC: btest -g G1 t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest -g G1,G2 t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest -g - t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest -g G1,- t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest --groups=-G3 t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest --groups=-G3,-G1 t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest t1 t2 t3 t4 t5 >>output 2>&1
# %TEST-EXEC: btest-diff output

%TEST-START-FILE t1
@TEST-GROUP: G1
@TEST-EXEC: exit 0
%TEST-END-FILE

%TEST-START-FILE t2
@TEST-GROUP: G1
@TEST-EXEC: exit 0
%TEST-END-FILE

%TEST-START-FILE t3
@TEST-GROUP: G2
@TEST-EXEC: exit 0
%TEST-END-FILE

%TEST-START-FILE t4
@TEST-EXEC: exit 0
%TEST-END-FILE

%TEST-START-FILE t5
@TEST-GROUP: G3
@TEST-EXEC: exit 0
%TEST-END-FILE