Merging upstream version 1.74.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 11 insertions, 8 deletions

diff --git a/tests/ui/backtrace.rs b/tests/ui/backtrace.rs
index 66b378f62..84be333be 100644
--- a/tests/ui/backtrace.rs
+++ b/tests/ui/backtrace.rs
@@ -94,27 +94,30 @@ fn runtest(me: &str) {
     #[cfg(not(panic = "abort"))]
     {
         // Make sure a stack trace is printed
-        let p = template(me).arg("double-fail").spawn().unwrap();
+        let p = template(me).arg("double-fail").env("RUST_BACKTRACE","0").spawn().unwrap();
         let out = p.wait_with_output().unwrap();
         assert!(!out.status.success());
         let s = str::from_utf8(&out.stderr).unwrap();
         // loosened the following from double::h to double:: due to
         // spurious failures on mac, 32bit, optimized
-        assert!(s.contains("stack backtrace") && contains_verbose_expected(s, "double"),
-                "bad output3: {}", s);
+        assert!(
+            s.contains("stack backtrace") &&
+                s.contains("panic in a destructor during cleanup") &&
+                contains_verbose_expected(s, "double"),
+            "bad output3: {}", s
+        );
+        // Make sure it's only one stack trace.
+        assert_eq!(s.split("stack backtrace").count(), 2);
 
         // Make sure a stack trace isn't printed too many times
-        //
-        // Currently it is printed 3 times ("once", "twice" and "panic in a
-        // function that cannot unwind") but in the future the last one may be
-        // removed.
+        // even with RUST_BACKTRACE=1. It should be printed twice.
         let p = template(me).arg("double-fail")
                                     .env("RUST_BACKTRACE", "1").spawn().unwrap();
         let out = p.wait_with_output().unwrap();
         assert!(!out.status.success());
         let s = str::from_utf8(&out.stderr).unwrap();
         let mut i = 0;
-        for _ in 0..3 {
+        for _ in 0..2 {
             i += s[i + 10..].find("stack backtrace").unwrap() + 10;
         }
         assert!(s[i + 10..].find("stack backtrace").is_none(),