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fromJS.spec.js
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79 lines (70 loc) · 1.5 KB
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
import fromJS from "../fromJS";
const preview = {
kind: "ArrayLike",
length: 201,
items: [
{
type: "null"
},
"a test",
"a",
{
type: "null"
},
{
type: "null"
},
{
type: "null"
},
{
type: "null"
},
{
type: "null"
},
{
type: "null"
},
{
type: "null"
}
]
};
describe("fromJS", () => {
it("supports array like objects", () => {
const iPreview = fromJS(preview);
expect(iPreview.get("length")).toEqual(201);
expect(iPreview.get("items").size).toEqual(10);
});
it("supports arrays", () => {
const iItems = fromJS(preview.items);
expect(iItems.getIn([0, "type"])).toEqual("null");
expect(iItems.size).toEqual(10);
});
it("supports objects without a prototype", () => {
expect(() => fromJS(Object.create(null))).not.toThrow();
});
it("supports objects with `hasOwnProperty` fields", () => {
const value = {
lookupIterator: {
value: {},
writable: true
},
hasOwnProperty: {
value: {},
writable: true
},
arguments: {
value: {},
writable: false
}
};
const newMap = fromJS(value);
expect(newMap.getIn(["hasOwnProperty", "writable"])).toEqual(true);
});
});