SERVER-5972 Allow `system.js` to be dropped

1 files changed, 37 insertions, 0 deletions

diff --git a/jstests/core/system_js_drop.js b/jstests/core/system_js_drop.js
new file mode 100644
index 00000000000..49a59c14ed5
--- /dev/null
+++ b/jstests/core/system_js_drop.js
@@ -0,0 +1,37 @@
+/**
+ * Tests dropping the system.js collection.
+ *
+ * @tags: [
+ *   assumes_read_preference_unchanged,
+ *   assumes_unsharded_collection,
+ *   requires_fcv_62,
+ *   requires_non_retryable_writes,
+ * ]
+ */
+(function() {
+'use strict';
+
+const testDB = db.getSiblingDB(jsTestName());
+assert.commandWorked(testDB.dropDatabase());
+
+const coll = testDB.coll;
+const systemJs = testDB.system.js;
+
+assert.commandWorked(coll.insert([{name: 'Alice', age: 20}, {name: 'Bob', age: 18}]));
+
+assert.commandWorked(systemJs.insert({
+    _id: "isTeenager",
+    value: function(age) {
+        return age >= 13 && age <= 19;
+    },
+}));
+
+assert.commandWorked(
+    testDB.runCommand({find: coll.getName(), filter: {$where: "isTeenager(this.age)"}}));
+
+assert(systemJs.drop());
+
+assert.commandFailedWithCode(
+    testDB.runCommand({find: coll.getName(), filter: {$where: "isTeenager(this.age)"}}),
+    ErrorCodes.JSInterpreterFailure);
+})();