SERVER-15826 convertToCapped doesn't need to take a global lock

1 files changed, 10 insertions, 0 deletions

diff --git a/jstests/core/convert_to_capped_nonexistant.js b/jstests/core/convert_to_capped_nonexistant.js
index 6a9a8b8ce3d..dcda30d7f8b 100644
--- a/jstests/core/convert_to_capped_nonexistant.js
+++ b/jstests/core/convert_to_capped_nonexistant.js
@@ -3,6 +3,16 @@
 
 var testDb = db.getSiblingDB("convert_to_capped_nonexistent");
 testDb.dropDatabase();
+
+// Database does not exist here
+var result = testDb.runCommand({convertToCapped: 'foo', size: 1024});
+assert.eq(result.ok, 0, "converting a nonexistent to capped worked and should not have");
+assert.eq(result.errmsg, "source database convert_to_capped_nonexistent does not exist",
+          "converting a nonexistent to capped failed but for the wrong reason");
+
+// Database exists, but collection doesn't
+testDb.coll.insert({});
+
 var result = testDb.runCommand({convertToCapped: 'foo', size: 1024});
 assert.eq(result.ok, 0, "converting a nonexistent to capped worked and should not have");
 assert.eq(result.errmsg, "source collection convert_to_capped_nonexistent.foo does not exist",