Plots.jl/test/runtests.jl
2022-02-07 20:22:58 +01:00

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using Plots: guidefont, series_annotations, PLOTS_SEED
using VisualRegressionTests
using RecipesBase
using StableRNGs
using TestImages
using LibGit2
using Random
using FileIO
using Plots
using Dates
using JSON
using Test
using Gtk
import GeometryBasics
import ImageMagick
@testset "Infrastructure" begin
@test_nowarn JSON.Parser.parse(
String(read(joinpath(dirname(pathof(Plots)), "..", ".zenodo.json"))),
)
end
@testset "Plotly standalone" begin
@test_nowarn Plots._init_ijulia_plotting()
@test Plots.plotly_local_file_path[] === nothing
temp = Plots.use_local_dependencies[]
withenv("PLOTS_HOST_DEPENDENCY_LOCAL" => true) do
Plots.__init__()
@test Plots.plotly_local_file_path[] isa String
@test isfile(Plots.plotly_local_file_path[])
@test Plots.use_local_dependencies[] = true
@test_nowarn Plots._init_ijulia_plotting()
end
Plots.plotly_local_file_path[] = nothing
Plots.use_local_dependencies[] = temp
end
for fn in (
"test_defaults.jl"
"test_pipeline.jl"
"test_axes.jl"
"test_layouts.jl"
"test_contours.jl"
"test_axis_letter.jl"
"test_components.jl"
"test_shorthands.jl"
"integration_dates.jl"
"test_recipes.jl"
"test_hdf5plots.jl"
"test_pgfplotsx.jl"
"test_plotly.jl"
)
@testset "$fn" begin
include(fn)
end
end
reference_dir(args...) =
joinpath(homedir(), ".julia", "dev", "PlotReferenceImages", args...)
function reference_file(backend, i, version)
refdir = reference_dir("Plots", string(backend))
fn = "ref$i.png"
versions = sort(VersionNumber.(readdir(refdir)), rev = true)
reffn = joinpath(refdir, string(version), fn)
for v in versions
tmpfn = joinpath(refdir, string(v), fn)
if isfile(tmpfn)
reffn = tmpfn
break
end
end
return reffn
end
reference_path(backend, version) = reference_dir("Plots", string(backend), string(version))
if !isdir(reference_dir())
mkpath(reference_dir())
LibGit2.clone(
"https://github.com/JuliaPlots/PlotReferenceImages.jl.git",
reference_dir(),
)
end
include("imgcomp.jl")
Random.seed!(PLOTS_SEED)
default(show = false, reuse = true) # don't actually show the plots
is_ci() = get(ENV, "CI", "false") == "true"
const PLOTS_IMG_TOL = parse(Float64, get(ENV, "PLOTS_IMG_TOL", is_ci() ? "1e-4" : "1e-5"))
## Uncomment the following lines to update reference images for different backends
# @testset "GR" begin
# image_comparison_facts(:gr, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:gr])
# end
#
# plotly()
# @testset "Plotly" begin
# image_comparison_facts(:plotly, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:plotlyjs])
# end
#
# pyplot()
# @testset "PyPlot" begin
# image_comparison_facts(:pyplot, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:pyplot])
# end
#
# pgfplotsx()
# @testset "PGFPlotsX" begin
# image_comparison_facts(:pgfplotsx, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:pgfplotsx])
# end
##
@testset "Axes" begin
p = plot()
axis = p.subplots[1][:xaxis]
@test typeof(axis) == Plots.Axis
@test Plots.discrete_value!(axis, "HI") == (0.5, 1)
@test Plots.discrete_value!(axis, :yo) == (1.5, 2)
@test Plots.ignorenan_extrema(axis) == (0.5, 1.5)
@test axis[:discrete_map] == Dict{Any,Any}(:yo => 2, "HI" => 1)
Plots.discrete_value!(axis, ["x$i" for i in 1:5])
Plots.discrete_value!(axis, ["x$i" for i in 0:2])
@test Plots.ignorenan_extrema(axis) == (0.5, 7.5)
end
@testset "NoFail" begin
# ensure backend with tested display
@test unicodeplots() == Plots.UnicodePlotsBackend()
@test backend() == Plots.UnicodePlotsBackend()
dsp = TextDisplay(IOContext(IOBuffer(), :color => true))
@testset "Plot" begin
plots = [
histogram([1, 0, 0, 0, 0, 0]),
plot([missing]),
plot([missing, missing]),
plot(fill(missing, 10)),
plot([missing; 1:4]),
plot([fill(missing, 10); 1:4]),
plot([1 1; 1 missing]),
plot(["a" "b"; missing "d"], [1 2; 3 4]),
]
for plt in plots
display(dsp, plt)
end
@test_nowarn plot(x -> x^2, 0, 2)
end
@testset "Bar" begin
p = bar([3, 2, 1], [1, 2, 3])
@test p isa Plots.Plot
@test display(dsp, p) isa Nothing
end
end
@testset "EmptyAnim" begin
anim = @animate for i in []
end
@test_throws ArgumentError gif(anim)
end
@testset "NaN-separated Segments" begin
segments(args...) = collect(iter_segments(args...))
nan10 = fill(NaN, 10)
@test segments(11:20) == [1:10]
@test segments([NaN]) == []
@test segments(nan10) == []
@test segments([nan10; 1:5]) == [11:15]
@test segments([1:5; nan10]) == [1:5]
@test segments([nan10; 1:5; nan10; 1:5; nan10]) == [11:15, 26:30]
@test segments([NaN; 1], 1:10) == [2:2, 4:4, 6:6, 8:8, 10:10]
@test segments([nan10; 1:15], [1:15; nan10]) == [11:15]
end
@testset "Utils" begin
zipped = (
[(1, 2)],
[("a", "b")],
[(1, "a"), (2, "b")],
[(1, 2), (3, 4)],
[(1, 2, 3), (3, 4, 5)],
[(1, 2, 3, 4), (3, 4, 5, 6)],
[(1, 2.0), (missing, missing)],
[(1, missing), (missing, "a")],
[(missing, missing)],
[(missing, missing, missing), ("a", "b", "c")],
)
for z in zipped
@test isequal(collect(zip(Plots.RecipesPipeline.unzip(z)...)), z)
@test isequal(
collect(zip(Plots.RecipesPipeline.unzip(GeometryBasics.Point.(z))...)),
z,
)
end
op1 = Plots.process_clims((1.0, 2.0))
op2 = Plots.process_clims((1, 2.0))
data = randn(100, 100)
@test op1(data) == op2(data)
@test Plots.process_clims(nothing) ==
Plots.process_clims(missing) ==
Plots.process_clims(:auto)
@test (==)(
Plots.texmath2unicode(
raw"Equation $y = \alpha \cdot x + \beta$ and eqn $y = \sin(x)^2$",
),
raw"Equation y = α ⋅ x + β and eqn y = sin(x)²",
)
end
@testset "Backends" begin
@testset "UnicodePlots" begin
@test unicodeplots() == Plots.UnicodePlotsBackend()
@test backend() == Plots.UnicodePlotsBackend()
io = IOContext(IOBuffer(), :color => true)
# lets just make sure it runs without error
p = plot(rand(10))
@test p isa Plots.Plot
@test show(io, p) isa Nothing
p = bar(randn(10))
@test p isa Plots.Plot
@test show(io, p) isa Nothing
p = plot([1, 2], [3, 4])
annotate!(p, [(1.5, 3.2, Plots.text("Test", :red, :center))])
hline!(p, [3.1])
@test p isa Plots.Plot
@test show(io, p) isa Nothing
p = plot([Dates.Date(2019, 1, 1), Dates.Date(2019, 2, 1)], [3, 4])
hline!(p, [3.1])
annotate!(p, [(Dates.Date(2019, 1, 15), 3.2, Plots.text("Test", :red, :center))])
@test p isa Plots.Plot
@test show(io, p) isa Nothing
p = plot([Dates.Date(2019, 1, 1), Dates.Date(2019, 2, 1)], [3, 4])
annotate!(p, [(Dates.Date(2019, 1, 15), 3.2, :auto)])
hline!(p, [3.1])
@test p isa Plots.Plot
@test show(io, p) isa Nothing
end
@testset "PlotlyJS" begin
@test plotlyjs() == Plots.PlotlyJSBackend()
@test backend() == Plots.PlotlyJSBackend()
p = plot(rand(10))
@test p isa Plots.Plot
@test_broken display(p) isa Nothing
end
@testset "GR" begin
ENV["PLOTS_TEST"] = "true"
ENV["GKSwstype"] = "100"
@test gr() == Plots.GRBackend()
@test backend() == Plots.GRBackend()
@static if haskey(ENV, "APPVEYOR")
@info "Skipping GR image comparison tests on AppVeyor"
else
image_comparison_facts(
:gr,
tol = PLOTS_IMG_TOL,
skip = Plots._backend_skips[:gr],
)
end
end
end