SERVER-19833 Error out when attempting to do committed reads on non-supported storage engines

1 files changed, 12 insertions, 0 deletions

diff --git a/jstests/core/read_majority_mmap.js b/jstests/core/read_majority_mmap.js
new file mode 100644
index 00000000000..367908eea42
--- /dev/null
+++ b/jstests/core/read_majority_mmap.js
@@ -0,0 +1,12 @@
+// Ensure read majority works on a standalone node, even with non-snapshotting storage engines.
+
+(function() {
+"use strict";
+
+var name = "readMajority";
+db = db.getSiblingDB(name);
+assert.writeOK(db.foo.insert({x: 3}));
+
+assert.commandWorked(db.foo.runCommand({find: name, readConcern: {level: "majority"}}));
+
+}());