From 24db3d8b82e015d600f90046af424091bd1affd4 Mon Sep 17 00:00:00 2001
From: Julius Krumbiegel <julius.krumbiegel@gmail.com>
Date: Tue, 18 Jun 2024 17:40:44 +0200
Subject: [PATCH] test presence of preamble cell

---
 test/testsets/integrations/PlotlyJS.jl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/testsets/integrations/PlotlyJS.jl b/test/testsets/integrations/PlotlyJS.jl
index 077ad73..6c9c272 100644
--- a/test/testsets/integrations/PlotlyJS.jl
+++ b/test/testsets/integrations/PlotlyJS.jl
@@ -6,6 +6,13 @@ if Sys.iswindows()
 else
     test_example(joinpath(@__DIR__, "../../examples/integrations/PlotlyJS.qmd")) do json
         cells = json["cells"]
+        preamble_cell = cells[5]
+        outputs = preamble_cell["outputs"]
+        @test length(outputs) == 1
+        data = outputs[1]["data"]
+        @test keys(data) == Set(["text/html", "text/plain"])
+        @test startswith(data["text/html"], "<script type=\"text/javascript\">")
+        @test occursin("require.undef(\"plotly\")", data["text/html"])
         for nth in (6, 9)
             cell = cells[nth]
             outputs = cell["outputs"]