remove method ambiguity

Author: matbesancon

Project.toml

@@ -14,6 +14,15 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
+[compat]
+ArnoldiMethod = "0.0.4"
+ColorTypes = "0.9"
+Colors = "0.11"
+Compose = "0.7"
+LightGraphs = "1.1"
+VisualRegressionTests = ">= 0.2"
+julia = "1"
+
 [extras]
 Cairo = "159f3aea-2a34-519c-b102-8c37f9878175"
 ImageMagick = "6218d12a-5da1-5696-b52f-db25d2ecc6d1"
@@ -22,8 +31,3 @@ VisualRegressionTests = "34922c18-7c2a-561c-bac1-01e79b2c4c92"
 
 [targets]
 test = ["Test", "Cairo", "ImageMagick", "VisualRegressionTests"]
-
-[compat]
-"Compose" = ">= 0.7"
-"LightGraphs" = ">= 1.1"
-"VisualRegressionTests" = ">= 0.2"

src/layout.jl

@@ -173,7 +173,8 @@ function spring_layout(g::AbstractGraph,
 end
 
 using Random: MersenneTwister
-function spring_layout(g::AbstractGraph; seed::Integer=0, kws...)
+
+function spring_layout(g::AbstractGraph, seed::Integer, kws...)
     rng = MersenneTwister(seed)
     spring_layout(g, 2 .* rand(rng, nv(g)) .- 1.0, 2 .* rand(rng,nv(g)) .- 1.0; kws...)
 end

test/runtests.jl

@@ -41,8 +41,7 @@ karate_edges = Edge.([
 g = SimpleGraph(karate_edges)
 h = LightGraphs.WheelGraph(10)
 
-
-test_layout(g::AbstractGraph; kws...) = spring_layout(g; seed=2017, kws...)
+test_layout(g::AbstractGraph; kws...) = spring_layout(g, 2017, kws...)
 
 # plot and save function for visual regression tests
 function plot_and_save(fname, g; gplot_kwargs...)