Support sub collection

[dfdgsdfg]

Seems not support nested sub collection.

firestore = MockFirestoreInstance();
      await firestore
          .collection('userProfiles')
          .document('a')
          .collection('relationship')
          .document('1')
          .setData(relationship1);
      await firestore
          .collection('userProfiles')
          .document('a')
          .collection('relationship')
          .document('2')
          .setData(relationship2);
      await firestore
          .collection('userProfiles')
          .document('a')
          .collection('relationship')
          .document('3')
          .setData(relationship3);
      await firestore
          .collection('userProfiles')
          .document('a')
          .collection('relationship')
          .document('4')
          .setData(relationship4);

      relsApi.allRelationships('a').listen(expectAsync1((rs) {
        print(rs.map((r) => r.relId));  // -> (1, 1, 1, 1) should be(1,2,3,4)
        expect(rs.length, equals(4)); 
      }));

[atn832]

Can you share the actual code for relsApi.allRelationships? I tried implementing something similar and it worked as expected. print(firebase.dump()) returned the following:

{
  "userProfiles": {
    "a": {
      "relationship": {
        "1": {
          "label": "relationship1"
        },
        "2": {
          "label": "relationship2"
        }
      }
    }
  }
}

[dfdgsdfg]

It's my mistake.

Everything is just fine.

Thanks for your superb works. 👍 👍 💯 🥇