protobuf.js/tests/api_namespace.js

var tape = require("tape");

var protobuf = require("..");

var def = {};

var proto = "package ns;\
enum Enm {\
    ONE = 1;\
    TWO = 2;\
}\
message Msg {\
    message Enm {}\
}\
service Svc {}";

tape.test("reflected namespaces", function(test) {

    var ns = protobuf.Namespace.fromJSON("ns", def);
    test.same(ns.toJSON(), def, "should construct from and convert back to JSON");

    var root = protobuf.parse(proto).root;
    ns = root.lookup("ns").resolveAll();
    test.same(ns.getEnum("Enm"), { ONE: 1, TWO: 2 }, "should get enums");

    test.throws(function() {
        ns.getEnum("Msg");
    }, Error, "should throw when getting a message as an enum");

    test.throws(function() {
        ns.getEnum("NOTFOUND");
    }, Error, "should throw when getting null as an enum");

    test.ok(ns.lookupType("Msg"), "should lookup types");

    test.equal(ns.get("Msg").lookupTypeOrEnum("Enm"), ns.lookup(".ns.Msg.Enm"), "should lookup the nearest type or enum");

    test.throws(function() {
        ns.lookupType("Enm");
    }, Error, "should throw when looking up an enum as a type");

    test.throws(function() {
        ns.lookupType("NOTFOUND");
    }, Error, "should throw when looking up null as a type");

    test.ok(ns.lookupEnum("Enm"), "should lookup enums");

    test.throws(function() {
        ns.lookupEnum("Msg");
    }, Error, "should throw when looking up a type as an enum");

    test.throws(function() {
        ns.lookupEnum("NOTFOUND");
    }, Error, "should throw when looking up null as an enum");

    test.ok(ns.lookupService("Svc"), "should lookup services");

    test.throws(function() {
        ns.lookupService("Msg");
    }, Error, "should throw when looking up a type as a service");

    test.throws(function() {
        ns.lookupService("NOTFOUND");
    }, Error, "should throw when looking up null as a service");

    test.equal(ns.lookup(""), ns, "should lookup itself for an empty path");

    test.equal(ns.lookup([]), ns, "should lookup itself for []");

    test.ok(ns.lookup(".") instanceof protobuf.Root, "should lookup root for .");

    test.ok(ns.lookup([""]) instanceof protobuf.Root, "should lookup root for [\"\"]");

    test.throws(function() {
        ns.define(null);
    }, "should throw when path is not a string or array");

    test.throws(function() {
        ns.define(".sub", {});
    }, "should throw when defining absolute .sub");

    test.throws(function() {
        ns.define(["", "sub"], {});
    }, "should throw when defining absolute [\"\", \"sub\"]");

    var sub = ns.define("sub", {});
    test.equal(ns.lookup("sub"), sub, "should define sub namespaces");

    test.throws(function() {
        ns.add(new protobuf.ReflectionObject("invalid"));
    }, TypeError, "should throw when adding invalid nested objects");

    test.throws(function() {
        ns.add(new protobuf.Enum("sub"));
    }, Error, "should throw on duplicate names");

    sub = ns.define("sub.sub");
    test.equal(ns.lookup("sub.sub"), sub, "should define sub sub namespaces");

    test.throws(function() {
        ns.remove(true);
    }, TypeError, "should throw when trying to remove non-reflection objects");

    test.throws(function() {
        ns.remove(new protobuf.Enum("Enm"));
    }, Error, "should throw when trying to remove non-children");

    test.throws(function() {
        ns.add(new protobuf.Enum("MyEnum", {}));
        ns.define("MyEnum");
    }, Error, "should throw when trying to define a path conflicting with non-namespace objects");

    ns = protobuf.Namespace.fromJSON("My", {
        nested: {
            Message: { fields: {} },
            Enum: { values: {} },
            Service: { methods: {} },
            extensionField: { type: "string", id: 1000, extend: "Message" },
            Other: { nested: {} }
        }
    });
    test.same(ns.toJSON(), {
        nested: {
            Message: { fields: {} },
            Enum: { values: {} },
            Service: { methods: {} },
            extensionField: { extend: "Message", id: 1000, type: "string" },
            Other: { }
        }
    }, "should create from Type, Enum, Service, extension Field and Namespace JSON");

    test.end();
});