added a test for increases code coverage

Author: simonschoelly

src/spring.jl

@@ -104,11 +104,11 @@ function iterate(network::Layout{M,P,T}, state) where {M, P, T}
         force[i] = force_vec
     end
     # Cool down
-    TEMP = initialtemp / state
+    temp = initialtemp / state
     # Now apply them, but limit to temperature
     for i = 1:N
         force_mag  = norm(force[i])
-        scale      = min(force_mag, TEMP)/force_mag
+        scale      = min(force_mag, temp)/force_mag
         locs[i]   += force[i] * scale
     end
 

test/runtests.jl

@@ -162,6 +162,14 @@ jagmesh_adj = jagmesh()
           locs = @time Buchheim.layout(n)
           @test typeof(locs) == Vector{Point{2, Float64}}
         end
+
+        # This testset is to cover a piece of code
+        # that was not covered anymore after fixing a bug
+        @testset "Test another Binary tree" begin
+            tree = [[5, 6], [6], [7, 8], [8], [], [9], [9], [], []]
+            locs = @time Buchheim.layout(tree)
+            @test typeof(locs) == Vector{Point{2, Float64}}
+        end
     end
 
 end