add test for #52161

Author: fatteneder

test/relocatedepot.jl

@@ -93,6 +93,41 @@ if !test_relocated_depot
         end
     end
 
+    @testset "#52161" begin
+        # Take the src file from the precompiled RelocationTestPkg1, which is located in depot1, and
+        # add it as an include_dependency() to a new pkg Foo, which will be precompiled into depot2.
+        # Foo should be fully relocatable and the include_dependency() should refer to depot1.
+        pkgname = "Foo"
+        test_harness() do
+            # make RelocationTestPkg1 loadable
+            depot1 = @__DIR__
+            push!(LOAD_PATH, depot1)
+            push!(DEPOT_PATH, depot1)
+            # precompile Foo into another depot
+            mktempdir() do depot2
+                pushfirst!(LOAD_PATH, depot2)
+                pushfirst!(DEPOT_PATH, depot2)
+                foofile = joinpath(depot2, "Foo.jl")
+                write(foofile, """
+                    module Foo
+                    using RelocationTestPkg1
+                    srcfile = joinpath(pkgdir(RelocationTestPkg1), "src", "RelocationTestPkg1.jl")
+                    @show srcfile
+                    include_dependency(srcfile)
+                    end
+                """)
+                pkg = Base.identify_package(pkgname)
+                Base.require(pkg)
+                cachefile = joinpath(depot2, "compiled", "v1.11", "Foo.ji")
+                _, (deps, _, _), _... = Base.parse_cache_header(cachefile)
+                @test map(x -> x.filename, deps) ==
+                    [ joinpath(depot2, "Foo.jl"),
+                      joinpath(depot1, "RelocationTestPkg1", "src", "RelocationTestPkg1.jl") ]
+            end
+        end
+    end
+
+
 else
 
     @testset "load stdlib from test/relocatedepot" begin