        let cb = function() {
            let sent = 0;

            if (++returned === total) {
                expect(pool._connections.length).to.be.above(1);
                pool._connections.forEach(function(conn) {
                    expect(conn.messages).to.be.above(1);
                    sent += conn.messages;
                });

                expect(sent).to.be.equal(total);

                pool.close();
                return done();
            }
        };
The software constructs a string for a command to executed by a separate component
in another control sphere, but it does not properly delimit the
intended arguments, options, or switches within that command string.