function init(domainManager) {
    if (!domainManager.hasDomain("testing")) {
        domainManager.registerDomain("testing", {major: 0, minor: 1});
    }
    domainManager.registerCommand(
        "testing",
        "remove",
        remove,
        true,
        "Remove the directory at the path",
        [{
            name: "path",
            type: "string",
            description: "path to the directory to remove"
        }]
    );
    domainManager.registerCommand(
        "testing",
        "copy",
        copy,
        true,
        "Copy a file or directory. The directory can have contents. Like cp -r.",
        [
            {
                name: "src",
                type: "string",
                description: "directory source to copy"
            },
            {
                name: "dest",
                type: "string",
                description: "destination directory"
            }
        ]
    );
    domainManager.registerCommand(
        "testing",
        "rename",
        rename,
        true,
        "Rename a file or directory.",
        [
            {
                name: "src",
                type: "string",
                description: "source path"
            },
            {
                name: "dest",
                type: "string",
                description: "destination path"
            }
        ]
    );
}
Initialize the "testing" domain.
The testing domain provides utilities for tests.