1 files changed, 61 insertions, 0 deletions
diff --git a/jstests/core/notablescan.js b/jstests/core/notablescan.js
new file mode 100644
index 00000000000..baef5d56ae6
--- /dev/null
+++ b/jstests/core/notablescan.js
@@ -0,0 +1,61 @@
+// check notablescan mode
+//
+// @tags: [
+//   assumes_against_mongod_not_mongos,
+//   # This test attempts to perform read operations after having enabled the notablescan server
+//   # parameter. The former operations may be routed to a secondary in the replica set, whereas the
+//   # latter must be routed to the primary.
+//   assumes_read_preference_unchanged,
+//   assumes_superuser_permissions,
+//   does_not_support_stepdowns,
+//   # Server parameters are stored in-memory only so are not transferred onto the recipient. This
+//   # test sets the server parameter "notablescan" to force the node to not execute queries that
+//   # require a collection scan and return an error.
+//   tenant_migration_incompatible,
+// ]
+
+t = db.test_notablescan;
+t.drop();
+
+try {
+    assert.commandWorked(db._adminCommand({setParameter: 1, notablescan: true}));
+    // commented lines are SERVER-2222
+    if (0) {  // SERVER-2222
+        assert.throws(function() {
+            t.find({a: 1}).toArray();
+        });
+    }
+    t.save({a: 1});
+    assert.throws(function() {
+        t.count({a: 1});
+    });
+    if (0) {
+        assert.throws(function() {
+            t.find({}).toArray();
+        });
+    }
+    assert.eq(1, t.find({}).itcount());  // SERVER-274
+
+    let err = assert.throws(function() {
+        t.find({a: 1}).toArray();
+    });
+    assert.includes(err.toString(), "No indexed plans available, and running with 'notablescan'");
+
+    err = assert.throws(function() {
+        t.find({a: 1}).hint({$natural: 1}).toArray();
+    });
+    assert.includes(err.toString(),
+                    "hint $natural is not allowed, because 'notablescan' is enabled");
+
+    t.createIndex({a: 1});
+    assert.eq(0, t.find({a: 1, b: 1}).itcount());
+    assert.eq(1, t.find({a: 1, b: null}).itcount());
+
+    // SERVER-4327
+    assert.eq(0, t.find({a: {$in: []}}).itcount());
+    assert.eq(0, t.find({a: {$in: []}, b: 0}).itcount());
+} finally {
+    // We assume notablescan was false before this test started and restore that
+    // expected value.
+    assert.commandWorked(db._adminCommand({setParameter: 1, notablescan: false}));
+}