unikernel/duniverse/dune_/test/blackbox-tests/test-cases/github5273.t

@@ -0,0 +1,15 @@
+  $ cat > dune-project << EOF
+  > (lang dune 1.0)
+  > EOF
+  $ cat > dune << EOF
+  > (library (name 03))
+  > EOF
+  $ dune build
+  File "dune", line 1, characters 15-17:
+  1 | (library (name 03))
+                     ^^
+  Error: "03" is an invalid module name.
+  Module names must be non-empty, start with a letter, and composed only of the
+  following characters: 'A'..'Z', 'a'..'z', '_', ''' or '0'..'9'.
+  Hint: M03 would be a correct module name
+  [1]