Add more end-to-end style tests for Logging

- ANSI color output when using `printstyled`

- Correct output when using `show` and `display`
with long output.

test/Logging.jl

@@ -59,6 +59,11 @@ using Pluto.WorkspaceManager: poll
         end
         """,
         "StructWithCustomShowThatLogs()", # 21
+        """
+        printstyled(stdout, "hello", color=:red)
+        """, # 22
+        "show(collect(1:500))", # 23
+        "display(collect(1:500))", # 24
     ]))
 
     @testset "Stdout" begin
@@ -123,6 +128,25 @@ using Pluto.WorkspaceManager: poll
         end
     end
 
+    @testset "ANSI Color Output" begin
+        update_run!(🍭, notebook, notebook.cells[22])
+        msg = only(notebook.cells[22].logs)["msg"][1]
+
+        @test startswith(msg, Base.text_colors[:red])
+        @test endswith(msg, Base.text_colors[:default])
+    end
+
+    @testset "show(...) and display(...) behavior" begin
+        update_run!(🍭, notebook, notebook.cells[23:24])
+
+        msg_show = only(notebook.cells[23].logs)["msg"][1]
+        msg_display = only(notebook.cells[24].logs)["msg"][1]
+
+        # Both should contain the first and last elements, but only `show` should contain the middle element
+        @test contains(msg_show, "250") && contains(msg_show, "500") && contains(msg_show, "1")
+        @test !contains(msg_display, "250") && contains(msg_display, "500") && contains(msg_display, "1")
+    end
+
     @testset "Logging respects maxlog" begin
         @testset "Single log" begin