// Basic js tests for the collMod command.
// Test setting the usePowerOf2Sizes flag, and modifying TTL indexes.

function debug(x) {
    // printjson( x );
}

var coll = "collModTest";
var t = db.getCollection(coll);
t.drop();

db.createCollection(coll);

// Verify the new collection has userFlags set to 1
printjson(t.stats());
assert.eq(t.stats().userFlags, 1, "fresh collection doesn't have userFlags = 1 ");

// Modify the collection with the usePowerOf2Sizes flag. Verify userFlags now = 0.
var res = db.runCommand({"collMod": coll, "usePowerOf2Sizes": false});
debug(res);
assert.eq(res.ok, 1, "collMod failed");
assert.eq(t.stats().userFlags, 0, "modified collection should have userFlags = 0 ");
var nso = db.system.namespaces.findOne({name: t.getFullName()});
debug(nso);
assert.eq(0, nso.options.flags, "options didn't sync to system.namespaces: " + tojson(nso));

// Try to modify it with some unrecognized value
var res = db.runCommand({"collMod": coll, "unrecognized": true});
debug(res);
assert.eq(res.ok, 0, "collMod shouldn't return ok with unrecognized value");

// add a TTL index
t.ensureIndex({a: 1}, {"expireAfterSeconds": 50});
assert.eq(1, db.system.indexes.count({key: {a: 1}, expireAfterSeconds: 50}), "TTL index not added");

// try to modify it with a bad key pattern
var res =
    db.runCommand({"collMod": coll, "index": {"keyPattern": "bad", "expireAfterSeconds": 100}});
debug(res);
assert.eq(0, res.ok, "mod shouldn't work with bad keypattern");

// try to modify it without expireAfterSeconds field
var res = db.runCommand({"collMod": coll, "index": {"keyPattern": {a: 1}}});
debug(res);
assert.eq(0, res.ok, "TTL mod shouldn't work without expireAfterSeconds");

// try to modify it with a non-numeric expireAfterSeconds field
var res =
    db.runCommand({"collMod": coll, "index": {"keyPattern": {a: 1}, "expireAfterSeconds": "100"}});
debug(res);
assert.eq(0, res.ok, "TTL mod shouldn't work with non-numeric expireAfterSeconds");

// this time modifying should finally  work
var res =
    db.runCommand({"collMod": coll, "index": {"keyPattern": {a: 1}, "expireAfterSeconds": 100}});
debug(res);
assert.eq(
    1, db.system.indexes.count({key: {a: 1}, expireAfterSeconds: 100}), "TTL index not modified");

// try to modify a faulty TTL index with a non-numeric expireAfterSeconds field
t.dropIndex({a: 1});
t.ensureIndex({a: 1}, {"expireAfterSeconds": "50"});
var res =
    db.runCommand({"collMod": coll, "index": {"keyPattern": {a: 1}, "expireAfterSeconds": 100}});
debug(res);
assert.eq(0, res.ok, "shouldn't be able to modify faulty index spec");

// try with new index, this time set both expireAfterSeconds and the usePowerOf2Sizes flag
t.dropIndex({a: 1});
t.ensureIndex({a: 1}, {"expireAfterSeconds": 50});
var res = db.runCommand({
    "collMod": coll,
    "usePowerOf2Sizes": true,
    "index": {"keyPattern": {a: 1}, "expireAfterSeconds": 100}
});
debug(res);
assert.eq(1, res.ok, "should be able to modify both userFlags and expireAfterSeconds");
assert.eq(t.stats().userFlags, 1, "userflags should be 1 now");
assert.eq(1,
          db.system.indexes.count({key: {a: 1}, expireAfterSeconds: 100}),
          "TTL index should be 100 now");