test_factory.js

contract("Factory", function (/* accounts */) {
  it("should assert true", async function () {
    await Factory.deployed();
    return assert.isTrue(true);
  });

  describe("#createChild()",async () => {
    let factory;
    beforeEach(async ()=>{
      factory = await Factory.deployed();
    });

    it("should create a new child", async () => {
      await factory.createChild(1);
      await factory.createChild(2);
      await factory.createChild(3);
      const children = await factory.getChildren();
      //console.log(children);
      const child1 = await Child.at(children[0]);
      const child2 = await Child.at(children[1]);
      const child3 = await Child.at(children[2]);

      const child1Data = await child1.data();
      const child2Data = await child2.data();
      const child3Data = await child3.data();

      assert.equal(children.length, 3);
      assert.equal(child1Data, 1);
      assert.equal(child2Data, 2);
      assert.equal(child3Data, 3);

    });
  });
});