SERVER-34779 Add hook for checking dbhash while a test is running.

Enables the CheckReplDBHashInBackground hook in the
replica_sets_jscore_passthrough.yml test suite.

Also fixes the WTPreserveSnapshotHistoryIndefinitely failpoint to ignore
attempts from _decreaseTargetSnapshotWindowSize() to move the oldest
timestamp forward.

1 files changed, 9 insertions, 5 deletions

diff --git a/src/mongo/shell/assert.js b/src/mongo/shell/assert.js
index bfb3a25bc17..dbd1b01c2cf 100644
--- a/src/mongo/shell/assert.js
+++ b/src/mongo/shell/assert.js
@@ -6,10 +6,12 @@ doassert = function(msg, obj) {
     if (typeof(msg) == "object")
         msg = tojson(msg);
 
-    if (typeof(msg) == "string" && msg.indexOf("assert") == 0)
-        print(msg);
-    else
-        print("assert: " + msg);
+    if (jsTest.options().traceExceptions) {
+        if (typeof(msg) == "string" && msg.indexOf("assert") == 0)
+            print(msg);
+        else
+            print("assert: " + msg);
+    }
 
     var ex;
     if (obj) {
@@ -17,7 +19,9 @@ doassert = function(msg, obj) {
     } else {
         ex = Error(msg);
     }
-    print(ex.stack);
+    if (jsTest.options().traceExceptions) {
+        print(ex.stack);
+    }
     throw ex;
 };