SERVER-47409 writeconcern>1 gives no error on standalone server

1 files changed, 13 insertions, 0 deletions

diff --git a/jstests/noPassthroughWithMongod/insertOne_vs_insert.js b/jstests/noPassthroughWithMongod/insertOne_vs_insert.js
new file mode 100644
index 00000000000..bbdcc0563b8
--- /dev/null
+++ b/jstests/noPassthroughWithMongod/insertOne_vs_insert.js
@@ -0,0 +1,13 @@
+// Test insert and insertOne with write-concerns other than {w:1}.
+
+const coll = db.testInserts;
+coll.drop();
+
+const thrown = assert.throws(() => coll.insertOne({a: 1}, {w: 2}));
+assert(thrown instanceof WriteCommandError);
+
+const insertResult = coll.insert({a: 2}, {w: 2});
+assert(insertResult instanceof WriteCommandError);
+assert.eq(insertResult.message, "cannot use 'w' > 1 when a host is not replicated");
+
+assert.eq(coll.count(), 0);