1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/cfg/diagnostics-cross-crate.rs b/tests/ui/cfg/diagnostics-cross-crate.rs
new file mode 100644
index 000000000..d2725c94b
--- /dev/null
+++ b/tests/ui/cfg/diagnostics-cross-crate.rs
@@ -0,0 +1,31 @@
+// aux-build:cfged_out.rs
+
+extern crate cfged_out;
+
+fn main() {
+    // There is no uwu at this path - no diagnostic.
+    cfged_out::uwu(); //~ ERROR cannot find function
+    //~^ NOTE not found in `cfged_out`
+
+    // It does exist here - diagnostic.
+    cfged_out::inner::uwu(); //~ ERROR cannot find function
+    //~^ NOTE found an item that was configured out
+    //~| NOTE not found in `cfged_out::inner`
+
+    // The module isn't found - we would like to get a diagnostic, but currently don't due to
+    // the awkward way the resolver diagnostics are currently implemented.
+    // FIXME(Nilstrieb): Also add a note to the cfg diagnostic here
+    cfged_out::inner::doesnt_exist::hello(); //~ ERROR failed to resolve
+    //~^ NOTE could not find `doesnt_exist` in `inner`
+
+    // It should find the one in the right module, not the wrong one.
+    cfged_out::inner::right::meow(); //~ ERROR cannot find function
+    //~^ NOTE found an item that was configured out
+    //~| NOTE not found in `cfged_out::inner::right
+    //~| NOTE the item is gated behind the `what-a-cool-feature` feature
+
+    // Exists in the crate root - diagnostic.
+    cfged_out::vanished(); //~ ERROR cannot find function
+    //~^ NOTE found an item that was configured out
+    //~| NOTE not found in `cfged_out`
+}