Coverage test for allowing coverage in a `#![no_core]` crate

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/coverage/no-core.rs b/tests/coverage/no-core.rs
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+++ b/tests/coverage/no-core.rs
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+#![feature(no_core)]
+#![no_core]
+//@ edition: 2021
+
+// Test that coverage instrumentation works for `#![no_core]` crates.
+
+// For this test, we pull in std anyway, to avoid having to set up our own
+// no-core or no-std environment. What's important is that the compiler allows
+// coverage for a crate with the `#![no_core]` annotation.
+extern crate std;
+
+fn main() {}