Tweak docs

docs/make.jl

@@ -9,7 +9,9 @@ TUTORIAL_DIR_JL = joinpath(dirname(@__DIR__), "test", "tutorial")
 TUTORIAL_DIR_MD = joinpath(@__DIR__, "src", "tutorial")
 
 for file in readdir(TUTORIAL_DIR_MD)
-    rm(joinpath(TUTORIAL_DIR_MD, file))
+    if endswith(file, ".md")
+        rm(joinpath(TUTORIAL_DIR_MD, file))
+    end
 end
 
 for file in readdir(TUTORIAL_DIR_JL)
@@ -38,7 +40,7 @@ pages = [
     "Home" => "index.md",
     "Tutorial" => [
         markdown_title(joinpath(TUTORIAL_DIR_MD, file)) => joinpath("tutorial", file)
-        for file in sort(readdir(TUTORIAL_DIR_MD))
+        for file in sort(readdir(TUTORIAL_DIR_MD)) if endswith(file, ".md")
     ],
     "API reference" => "api.md",
 ]

test/tutorial/1_basics.jl

@@ -103,23 +103,22 @@ weighttype(weighted_default)
 
 # You can use the `weight_function` keyword to specify a function which will transform edge metadata into a weight. This weight must always be the same type as the `default_weight`.
 
-weighted = MetaGraph(Graph(); EdgeData=Float64, weight_function=identity);
-weighted[:red] = nothing;
-weighted[:blue] = nothing;
-weighted[:yellow] = nothing;
-weighted[:red, :blue] = 1.0;
-weighted[:blue, :yellow] = 2.0;
+weighted = MetaGraph(Graph(); EdgeData=Float64, weight_function=ed -> ed^2);
+
+weighted[:alice] = nothing;
+weighted[:bob] = nothing;
+weighted[:alice, :bob] = 2.0;
 #-
 weight_matrix = Graphs.weights(weighted)
 #-
 size(weight_matrix)
-@test size(weight_matrix) == (3, 3)  #src
+@test size(weight_matrix) == (2, 2)  #src
 #-
-weight_matrix[1, 3]
-@test weight_matrix[1, 3] ≈ 1.0  #src
+weight_matrix[1, 2]
+@test weight_matrix[1, 2] ≈ 4.0  #src
 #-
-wf = get_weight_function(weighted)  # identity
-wf(5.2)
-@test wf(5.2) ≈ 5.2  #src
+wf = get_weight_function(weighted)
+wf(3)
+@test wf(3) == 9  #src
 
 # You can then use all functions from Graphs.jl that require weighted graphs (see the rest of the tutorial).

test/tutorial/2_graphs.jl

@@ -13,7 +13,12 @@ using Test  #src
 # We can make `MetaGraph`s based on (undirected) `Graph`s.
 
 cities = MetaGraph(
-    Graph(); VertexData=String, EdgeData=Int, weight_function=identity, default_weight=0
+    Graph();
+    Label=Symbol,
+    VertexData=String,
+    EdgeData=Int,
+    weight_function=identity,
+    default_weight=0,
 );
 
 # Let us add some cities and the distance between them:
@@ -88,7 +93,7 @@ zero(cities)
 diameter(cities)
 @test diameter(cities) == 344 + 878  #src
 #-
-ds = dijkstra_shortest_paths(cities, 2);
+ds = dijkstra_shortest_paths(cities, 2)
 @test Tuple(ds.dists) == (344, 0, 344 + 878)  #src
 
 # Finally, let us remove some edges and vertices