1 files changed, 61 insertions, 0 deletions
diff --git a/tests/run-make/incremental-debugger-visualizer/rmake.rs b/tests/run-make/incremental-debugger-visualizer/rmake.rs
new file mode 100644
index 00000000000..74de4e9909b
--- /dev/null
+++ b/tests/run-make/incremental-debugger-visualizer/rmake.rs
@@ -0,0 +1,61 @@
+// This test makes sure that changes to files referenced via //[debugger_visualizer]
+// are picked up when compiling incrementally.
+
+// We have to copy the source to $(TMPDIR) because Github CI mounts the source
+// directory as readonly. We need to apply modifications to some of the source
+// file.
+
+use run_make_support::{
+    fs_wrapper, invalid_utf8_contains_str, invalid_utf8_not_contains_str, rustc,
+};
+use std::io::Read;
+
+fn main() {
+    fs_wrapper::create_file("foo.py");
+    fs_wrapper::write("foo.py", "GDB script v1");
+    fs_wrapper::create_file("foo.natvis");
+    fs_wrapper::write("foo.py", "Natvis v1");
+    rustc()
+        .input("foo.rs")
+        .crate_type("rlib")
+        .emit("metadata")
+        .incremental("incremental")
+        .arg("-Zincremental-verify-ich")
+        .run();
+
+    invalid_utf8_contains_str("libfoo.rmeta", "GDB script v1");
+    invalid_utf8_contains_str("libfoo.rmeta", "Natvis v1");
+
+    // Change only the GDB script and check that the change has been picked up
+    fs_wrapper::remove_file("foo.py");
+    fs_wrapper::create_file("foo.py");
+    fs_wrapper::write("foo.py", "GDB script v2");
+    rustc()
+        .input("foo.rs")
+        .crate_type("rlib")
+        .emit("metadata")
+        .incremental("incremental")
+        .arg("-Zincremental-verify-ich")
+        .run();
+
+    invalid_utf8_contains_str("libfoo.rmeta", "GDB script v2");
+    invalid_utf8_not_contains_str("libfoo.rmeta", "GDB script v1");
+    invalid_utf8_contains_str("libfoo.rmeta", "Natvis v1");
+
+    // Now change the Natvis version and check that the change has been picked up
+    fs_wrapper::remove_file("foo.natvis");
+    fs_wrapper::create_file("foo.natvis");
+    fs_wrapper::write("foo.py", "Natvis v2");
+    rustc()
+        .input("foo.rs")
+        .crate_type("rlib")
+        .emit("metadata")
+        .incremental("incremental")
+        .arg("-Zincremental-verify-ich")
+        .run();
+
+    invalid_utf8_contains_str("libfoo.rmeta", "GDB script v2");
+    invalid_utf8_not_contains_str("libfoo.rmeta", "GDB script v1");
+    invalid_utf8_not_contains_str("libfoo.rmeta", "Natvis v1");
+    invalid_utf8_contains_str("libfoo.rmeta", "Natvis v2");
+}