python312Packages.kaleido: Add passthru.tests

Author: Pandapip1

pkgs/development/python-modules/kaleido/default.nix

@@ -3,6 +3,7 @@
   stdenv,
   python,
   buildPythonPackage,
+  callPackage,
   fetchurl,
   autoPatchelfHook,
   bash,
@@ -96,6 +97,8 @@ buildPythonPackage rec {
     #ln -s ${lato}/share/fonts/lato/* $out/${python.sitePackages}/kaleido/executable/xdg/fonts/truetype/lato/
   '';
 
+  passthru.tests.kaleido = callPackage ./tests.nix { };
+
   meta = {
     description = "Fast static image export for web-based visualization libraries with zero dependencies";
     homepage = "https://github.com/plotly/Kaleido";

pkgs/development/python-modules/kaleido/tests.nix

@@ -0,0 +1,15 @@
+{
+  runCommand,
+  python,
+  plotly,
+  pandas,
+  kaleido,
+}:
+
+runCommand "${kaleido.pname}-tests" {
+  nativeBuildInputs = [
+    python
+    plotly
+    pandas
+  ];
+} "python3 ${./tests.py}"

pkgs/development/python-modules/kaleido/tests.py

@@ -0,0 +1,11 @@
+import plotly.express as px
+import os
+import os.path
+
+out = os.environ["out"]
+if not os.path.exists(out):
+  os.makedirs(out)
+
+outfile = os.path.join(out, "figure.png")
+fig = px.scatter(px.data.iris(), x="sepal_length", y="sepal_width", color="species")
+fig.write_image(outfile, engine="kaleido")