class Artist(db.Model):
    id = db.Column(db.Integer(),primary_key=True)
    artist_name = db.Column(db.String(200))
    albums = db.relationship('Album',backref='artist',lazy=True)

    def __repr__(self):
        return "<Artist '{}'>".format(self.artist_name)

这是测试班

def test_artists_count(self):
        c = Artist.query.all()
        self.assertEqual(2,c)

这是我遇到的错误

Traceback (most recent call last):enter code here
  File "/projects/challenge/myflaskproj/tests/test_models.py",line 65,in test_artists_count

self.assertEqual(2,c)

AssertionError: 2 != [<Artist 'Artist1'>,<Artist 'Artist2'>]