SERVER-47312 hang_analyzer: enable on ASAN builders without running gcore

1 files changed, 9 insertions, 3 deletions

diff --git a/jstests/resmoke_selftest/shell_hang_analyzer.js b/jstests/resmoke_selftest/shell_hang_analyzer.js
index 8cd619f19f6..9fc58b628cd 100644
--- a/jstests/resmoke_selftest/shell_hang_analyzer.js
+++ b/jstests/resmoke_selftest/shell_hang_analyzer.js
@@ -28,11 +28,17 @@ try {
 
     const lines = rawMongoProgramOutput().split('\n');
 
-    if (TestData.isAsanBuild) {
-        // Nothing should be executed, so there's no output.
-        assert.eq(lines, ['']);
+    if (_isAddressSanitizerActive()) {
+        assert.soon(() => {
+            // On ASAN builds, we never dump the core during hang analyzer runs,
+            // nor should the output be empty (empty means it didn't run).
+            // If you're trying to debug why this test is failing, confirm that the
+            // hang_analyzer_dump_core expansion has not been set to true.
+            return !anyLineMatches(lines, /Dumping core/) && lines.length != 0;
+        });
     } else {
         assert.soon(() => {
+            // Outside of ASAN builds, we expect the core to be dumped.
             return anyLineMatches(lines, /Dumping core/);
         });
     }