improve coverage

JuliaPlots · Feb 7, 2022 · 231b10f · 231b10f
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Showing 3 changed files with 7 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -226,7 +226,7 @@ surfaceplot(
 
 #### Isosurface Plot
 
-Uses the `Marching Cubes` algorithm to extract an isosurface, where `isovalue` controls the surface isovalue. Using `centroid` enables plotting the triangulation centroids instead of the triangle vertices (better for small plots). Back face culling (hide not visible facets) can be activated using `cull=true`. One can use the legacy 'Marching Cubes' algorithm using `legacy=true`.
+Uses [`MarchingCubes.jl`](https://github.com/t-bltg/MarchingCubes.jl) to extract an isosurface, where `isovalue` controls the surface isovalue. Using `centroid` enables plotting the triangulation centroids instead of the triangle vertices (better for small plots). Back face culling (hide not visible facets) can be activated using `cull=true`. One can use the legacy 'Marching Cubes' algorithm using `legacy=true`.
 
 ```julia
 torus(x, y, z, r=0.2, R=0.5) = (√(x^2 + y^2) - R)^2 + z^2 - r^2

diff --git a/docs/generate_docs.jl b/docs/generate_docs.jl
@@ -287,7 +287,7 @@ $(examples.surfaceplot2)
 
 #### Isosurface Plot
 
-Uses the `Marching Cubes` algorithm to extract an isosurface, where `isovalue` controls the surface isovalue.
+Uses [`MarchingCubes.jl`](https://github.com/t-bltg/MarchingCubes.jl) to extract an isosurface, where `isovalue` controls the surface isovalue.
 Using `centroid` enables plotting the triangulation centroids instead of the triangle vertices (better for small plots).
 Back face culling (hide not visible facets) can be activated using `cull=true`.
 One can use the legacy 'Marching Cubes' algorithm using `legacy=true`.

diff --git a/test/tst_common.jl b/test/tst_common.jl
@@ -75,6 +75,11 @@ end
     @test UnicodePlots.colormap_callback([1, 2, 3]) isa Function
     @test UnicodePlots.colormap_callback(nothing) === nothing
 
+    # clamp in range
+    values = collect(1:10)
+    callback = UnicodePlots.colormap_callback(:viridis)
+    colors = [callback(v, values[2], values[end - 1]) for v in values]
+
     # en.wikipedia.org/wiki/ANSI_escape_code#8-bit
     @test UnicodePlots.rgb2ansi((0, 0, 0)) == 016  # black
     @test UnicodePlots.rgb2ansi((1, 0, 0)) == 196  # red