rename6.js

// Test for SERVER-7017
// We shouldn't rename a collection when one of its indexes will generate a namespace
// that is greater than 120 chars. To do this we create a long index name and try
// and rename the collection to one with a much longer name. We use the test database
// by default and we add this here to ensure we are using it
testDB = db.getSiblingDB("test")
c = "rename2c";
dbc = testDB.getCollection(c);
d = "dest4567890123456789012345678901234567890123456789012345678901234567890"
dbd = testDB.getCollection(d);
dbc.ensureIndex({ "name" : 1,
                  "date" : 1,
                  "time" : 1,
                  "renameCollection" : 1,
                  "mongodb" : 1,
                  "testing" : 1,
                  "data" : 1});
//Checking for the newly created index and the _id index in original collection
assert.eq(2, testDB.system.indexes.find( { "ns" : "test." + c } ).count(), "Long Rename Init");
//Should fail to rename collection as the index namespace is too long
assert.commandFailed( dbc.renameCollection( dbd ) , "Long Rename Exec" );
//Since we failed we should have the 2 indexes unmoved and no indexes under the new collection name
assert.eq(2, testDB.system.indexes.find( { "ns" : "test." + c } ).count(), "Long Rename Result 1");
assert.eq(0, testDB.system.indexes.find( { "ns" : "test." + d } ).count(), "Long Rename Result 2");