Unit test: Number.toLocaleString()

Question

I would have expected (10000).toLocaleString('de-DE') to return "10.000" but instead I get "10000".

Is there a reason this is not supported? Are there better ways to format numbers?

Answer 1

It is a webkit issue, and PhantomJS doesn't want to maintain internationalization... so unfortunately we are stuck with this for some undisclosed time.

https://github.com/ariya/phantomjs/issues/12581

What I ended up doing is writing a custom matcher that checks for both, since I run in Chrome and PhantomJS.

jasmine.addMatchers({
    isAnyOf: (util, customEqualityTesters) => {
      return {
        compare: (actual, expected) => {
          let result = {};
          for (let expect of expected) {
            console.log(actual == expect);
            if (expect == actual) {
              result.pass = true;
              return result;
            }
          }
          result.pass = false
          return result;
        }
      }
    }
  })

Then you can use it like

expect(actual).isAnyOf(['10000', '10.000']);