How do I run Jasmine in browser mode if my tests are written in Typescript?

Question

I am using Jasmine to unit test some legacy code that will run in the browser. Here is how I execute my tests: ts-node node_modules/jasmine/bin/jasmine

Because this is legacy code, it's using globals (ie: window). How do I execute Jasmine and tell it that it should assume the code is in browser mode as opposed to node mode. That is, recognize window as a global variable and global as not?

felixmosh · Answer 1 · 2020-03-21T19:18:58.880

0

If jasmine is a hard requirement, you can use jsdom to mimic browser environment in node.

const jsdom = require("jsdom");
const { JSDOM } = jsdom;
global.window = (new JSDOM()).window; // this will put window object on the node's global object.

If it is not a hard requirement, consider using jest, which has the entire jsdom setup built-in.

edited Mar 21 '20 at 19:18

answered Mar 21 '20 at 19:12

felixmosh

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I have no need to access the Dom, I just need an empty window object that I can set and get things on. Does that give me another way to do it? – Daniel Kaplan Mar 21 '20 at 19:13
JSDom is exactly this, check the documentation – felixmosh Mar 21 '20 at 19:14
@DanielKaplan then just `global.window = {};` – Aluan Haddad Mar 21 '20 at 20:13

How do I run Jasmine in browser mode if my tests are written in Typescript?

1 Answers1