d3js unit testing removal of elements

Question

I am using jasmine to unit test some interactions in a d3.js chart. I have been using d3.timerFlush() to complete the executions of anima

Answer 1

Alright, figured it out, d3 version 3 used to use date.now to measure time. Version 4 moved to performance.now.

So, the correct code should be:

it('it will remove all of the pie related elements from the DOM', () => {
    chartSvc.exit();
    performance.now = function() { return Infinity; };
    d3.timerFlush();
    let elements = svg.querySelectorAll(/* selects my elements */);
    expect(elements.length).toEqual(0);
});

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Here's some test code: