add tests for engines key effect

Author: jkrumbiegel

tests/docs/smoke-all/engine-reordering/julia-engine/_quarto.yml

@@ -0,0 +1,3 @@
+project:
+  type: default
+engines: ["julia"]

tests/docs/smoke-all/engine-reordering/julia-engine/notebook.qmd

@@ -0,0 +1,10 @@
+```{julia}
+using Test
+@test haskey(
+  Base.loaded_modules,
+  Base.PkgId(
+    Base.UUID("38328d9c-a911-4051-bc06-3f7f556ffeda"),
+    "QuartoNotebookWorker",
+  )
+)
+```

tests/docs/smoke-all/engine-reordering/jupyter-engine/_quarto.yml

@@ -0,0 +1,3 @@
+project:
+  type: default
+engines: ["jupyter"]

tests/docs/smoke-all/engine-reordering/jupyter-engine/notebook.qmd

@@ -0,0 +1,10 @@
+```{julia}
+using Test
+@test haskey(
+  Base.loaded_modules,
+  Base.PkgId(
+    Base.UUID("7073ff75-c697-5162-941a-fcdaad2a7d2a"),
+    "IJulia",
+  )
+)
+```