How to use the viewport-mercator-project.getProjectionParameters function in viewport-mercator-project

test('getProjectionParameters', t => {
  for (const vc in VIEWPORT_PROPS) {
    const props = VIEWPORT_PROPS[vc];

    // TODO - for now, just tests that fields are valid number
    const {fov, aspect, focalDistance, near, far} = getProjectionParameters(props);
    t.ok(Number.isFinite(fov), 'getProjectionParameters: fov is a number');
    t.ok(Number.isFinite(aspect), 'getProjectionParameters: aspect is a number');
    t.ok(Number.isFinite(focalDistance), 'getProjectionParameters: focalDistance is a number');
    t.ok(Number.isFinite(near), 'getProjectionParameters: near is a number');
    t.ok(Number.isFinite(far), 'getProjectionParameters: far is a number');
  }
  t.end();
});