[{:test/label ":db.cardinality/one, insert"
  :test/assertions
  [[:db/add 100 :db/ident :keyword/value1]
   [:db/add 101 :db/ident :keyword/value2]]
  :test/expectedtransaction
  #{[100 :db/ident :keyword/value1 ?tx1 true]
    [101 :db/ident :keyword/value2 ?tx1 true]
    [?tx1 :db/txInstant ?ms1 ?tx1 true]}
  :test/expecteddatoms
  #{[100 :db/ident :keyword/value1]
    [101 :db/ident :keyword/value2]}}

 {:test/label ":db.cardinality/many, insert"
  :test/assertions
  [[:db/add 200 :db.schema/attribute 100]
   [:db/add 200 :db.schema/attribute 101]]
  :test/expectedtransaction
  #{[200 :db.schema/attribute 100 ?tx2 true]
    [200 :db.schema/attribute 101 ?tx2 true]
    [?tx2 :db/txInstant ?ms2 ?tx2 true]}
  :test/expecteddatoms
  #{[100 :db/ident :keyword/value1]
    [101 :db/ident :keyword/value2]
    [200 :db.schema/attribute 100]
    [200 :db.schema/attribute 101]}}

 {:test/label ":db.cardinality/one, replace"
  :test/assertions
  [[:db/add 100 :db/ident :keyword/value11]
   [:db/add 101 :db/ident :keyword/value22]]
  :test/expectedtransaction
  #{[100 :db/ident :keyword/value1 ?tx3 false]
    [100 :db/ident :keyword/value11 ?tx3 true]
    [101 :db/ident :keyword/value2 ?tx3 false]
    [101 :db/ident :keyword/value22 ?tx3 true]
    [?tx3 :db/txInstant ?ms3 ?tx3 true]}
  :test/expecteddatoms
  #{[100 :db/ident :keyword/value11]
    [101 :db/ident :keyword/value22]
    [200 :db.schema/attribute 100]
    [200 :db.schema/attribute 101]}}

 {:test/label ":db.cardinality/one, already present"
  :test/assertions
  [[:db/add 100 :db/ident :keyword/value11]
   [:db/add 101 :db/ident :keyword/value22]]
  :test/expectedtransaction
  #{[?tx4 :db/txInstant ?ms4 ?tx4 true]}
  :test/expecteddatoms
  #{[100 :db/ident :keyword/value11]
    [101 :db/ident :keyword/value22]
    [200 :db.schema/attribute 100]
    [200 :db.schema/attribute 101]}}

 {:test/label ":db.cardinality/many, already present"
  :test/assertions
  [[:db/add 200 :db.schema/attribute 100]
   [:db/add 200 :db.schema/attribute 101]]
  :test/expectedtransaction
  #{[?tx5 :db/txInstant ?ms5 ?tx5 true]}
  :test/expecteddatoms
  #{[100 :db/ident :keyword/value11]
    [101 :db/ident :keyword/value22]
    [200 :db.schema/attribute 100]
    [200 :db.schema/attribute 101]}}
 ]