Merge pull request #529 from JuliaRobotics/hotfix/20Q3/fix_#528

Hotfix for lsf with tags filter and test

Author: dehann

src/LightDFG/services/LightDFG.jl

@@ -204,7 +204,7 @@ end
 function listFactors(dfg::LightDFG, regexFilter::Union{Nothing, Regex}=nothing; tags::Vector{Symbol}=Symbol[], solvable::Int=0)::Vector{Symbol}
     # factors = map(v -> v.dfgNode, filter(n -> n.dfgNode isa DFGFactor, vertices(dfg.g)))
     if length(tags) > 0
-        return map(v -> v.label, getFactor(dfg, regexFilter, tags=tags, solvable=solvable))
+        return map(v -> v.label, getFactors(dfg, regexFilter, tags=tags, solvable=solvable))
     end
     factors = collect(keys(dfg.g.factors))
     if regexFilter != nothing

test/testBlocks.jl

@@ -898,6 +898,9 @@ function testGroup!(fg, v1, v2, f0, f1)
         @test ls(fg, tags=[:POSE]) == []
         @test issetequal(ls(fg, tags=[:POSE, :LANDMARK]), ls(fg, tags=[:VARIABLE]))
 
+        @test lsf(fg, tags=[:NONE]) == []
+        @test lsf(fg, tags=[:PRIOR]) == [:af1] 
+
         # Regexes
         @test ls(fg, r"a") == [v1.label]
         @test lsf(fg, r"abf*") == [f1.label]