unikernel/duniverse/dune_/test/blackbox-tests/test-cases/virtual-libraries/lazy-load-impl.t

@@ -0,0 +1,34 @@
+This test demonstrates that an incorrect implementation prevents all rules from
+being loaded in the same directory
+
+  $ cat >dune-project <<EOF
+  > (lang dune 3.7)
+  > EOF
+
+We define an invalid library along with a rule and an executable that should be
+buildable despite the presence of this library
+
+  $ cat >dune <<EOF
+  > (library
+  >  (name foo)
+  >  (modules :standard \ foo)
+  >  (implements fake-dummy))
+  > (rule (with-stdout-to test (echo foo)))
+  > (executable
+  >  (name foo)
+  >  (modules foo))
+  > EOF
+
+  $ touch foo.ml
+  $ dune build ./test
+  File "dune", line 4, characters 13-23:
+  4 |  (implements fake-dummy))
+                   ^^^^^^^^^^
+  Error: Library "fake-dummy" not found.
+  [1]
+  $ dune build ./foo.exe
+  File "dune", line 4, characters 13-23:
+  4 |  (implements fake-dummy))
+                   ^^^^^^^^^^
+  Error: Library "fake-dummy" not found.
+  [1]