test.js

const test1 = {test: true};
let component;

componentIntegrationTest('', '', {
  beforeEach() {
    this.render(hbs`{{change-item-component test1=test1 test2="test2" }}`);
    component = getComponentInstance(this);
  }
});

test('puts read more button when there is image', function(assert) {
  assert.expect(1);
  console.log(component.get('test1')); // undefined
  console.log(component.get('test2')); // test2
});