in spec/command_tests/helpers.ts [18:30]
function buildCommandMap(commandList: CommandList) {
if (commandMap == null) {
commandMap = {};
}
for (let commandName in commandList) {
let command = commandList[commandName];
if (command instanceof Command) {
commandMap[command.method + ':' + (command.path[0] == '/' ? '':'/') + command.path] = command;
} else {
buildCommandMap(command);
}
}
}