start adding tests

ReferenceTests/src/tests/examples2d.jl

@@ -271,6 +271,25 @@ end
     st
 end
 
+@reference_test "Label rotations" begin
+    N = 18  # number of rotations
+    fig, ax, _ = scatter(0:1; axis = (; xlabel = "a nice and long x label for this axis", ylabel = "a nice and long y label for this axis"))
+    st = Stepper(fig)
+
+    #=
+    record(fig, "rot.gif") do io
+        for rot in LinRange(0, 2π, N)
+            ax.xlabelrotation[] = rot
+            ax.ylabelrotation[] = rot
+            recordframe!(io)
+        end
+    end
+    =#
+
+    Makie.step!(st)
+    st
+end
+
 @reference_test "Errorbars x y low high" begin
     x = 1:10
     y = sin.(x)

src/makielayout/types.jl

@@ -503,6 +503,8 @@ end
         labelvisible = true
         "The gap between the label and the ticks."
         labelpadding = 5f0
+        "The label rotation in radians."
+        labelrotation = 0f0
         "The font family of the tick labels."
         ticklabelfont = :regular
         "The font size of the tick labels."