/+  *test, *btc-wallet-store, btc
|%
+$  vector
  $:  =xpub:btc
      eny=@uv
      block=@ud
      feyb=sats
      ins=(list insel)
      outs=(list txo)
      expect=[selected=(unit (list insel)) chng=(unit sats:btc)]
  ==
++  mk-utxo
  |=  value=sats:btc
  ^-  utxo:btc
  :*  pos=0
      [wid=32 dat=0xc493.f6f1.4668.5f76.b44f.0c77.ca88.120c.b8bc.89f5.34fe.69b6.8288.27b9.74e6.8849]
      height=3
      value
      recvd=~
  ==
::
++  fprint  4^0xdead.beef
::
++  vectors
  =|  w=walt
  ^-  (list vector)
  :~  :*  'zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs'
          0v3uc.iuebi.5qilc.l8d87.c1k6n.7iksq.nkobs.8s5he.raq40.9ff0b.5tj3u.kjtg7.aq59e.hatv7.oioam.mlsr4.pqqcd.cnbjn.pnpi2.1m5rt.k4scg
          999
          10
          :~  [(mk-utxo 200.000) %0 1]
              [(mk-utxo 500.000) %0 2]
              [(mk-utxo 204) %0 3]
              [(mk-utxo 235.000) %1 2]
          ==
          :~  [[%bech32 'bc1q59u5epktervh6fxqay2dlph0wxu9hjnx6v8n66'] 200.100 ~]
              [[%bech32 'bc1qlwd7mw33uea5m8r2lsnsrkc7gp2qynrxsfxpfm'] 200.000 ~]
          ==
          :*  `~[[(mk-utxo 500.000) %0 2]]
              `98.400
          ==
      ==
      ::
      :*  'zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs'
          0v1gt.mc4ca.lfs0m.q1dal.lqobu.mmlbd.2umnp.lj9dr.4pf4s.pvclr.dps96.4a6i8.rt6n9.krp0r.11kqu.ckqe4.1tmat.gr754.463aj.a4b41.jj7qg
          999
          10
          :~  [(mk-utxo 200.000) %0 1]
              [(mk-utxo 500.000) %0 2]
              [(mk-utxo 204) %0 3]
              [(mk-utxo 235.000) %1 2]
          ==
          :~  [[%bech32 'bc1q59u5epktervh6fxqay2dlph0wxu9hjnx6v8n66'] 200.100 ~]
              [[%bech32 'bc1qlwd7mw33uea5m8r2lsnsrkc7gp2qynrxsfxpfm'] 200.000 ~]
          ==
          :*  `~[[(mk-utxo 235.000) %1 2] [(mk-utxo 200.000) %0 1]]
              `64.000
          ==
      ==
      ::
      :*  'zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs'
          0v1gt.mc4ca.lfs0m.q1dal.lqobu.mmlbd.2umnp.lj9dr.4pf4s.pvclr.dps96.4a6i8.rt6n9.krp0r.11kqu.ckqe4.1tmat.gr754.463aj.a4b41.jj7qg
          999
          10
          ~[[(mk-utxo 500.000) %0 2]]
          :~  [[%bech32 'bc1q59u5epktervh6fxqay2dlph0wxu9hjnx6v8n66'] 299.797 ~]
              [[%bech32 'bc1qlwd7mw33uea5m8r2lsnsrkc7gp2qynrxsfxpfm'] 200.000 ~]
          ==
          :*  *(unit (list insel))
              *(unit sats:btc)
          ==
      ==
  ==
::
++  dust-vectors  %.n
::
++  test-vectors
  ^-  tang
  |^  ;:  weld
          %+  category  "single-random-draw"
          (zing (turn vectors check-single-random-draw))
          ::
          %+  category  "select with change"
          (zing (turn vectors check-change))
          ::
      ==
  ::
  ++  check-single-random-draw
    |=  v=vector
    =/  w=walt  (from-xpub xpub.v fprint ~ ~ ~)
    %+  expect-eq
      !>(selected.expect.v)
      !>((~(single-random-draw sut [w eny.v block.v ~ feyb.v outs.v]) ins.v))
  ::
  ++  check-change
    |=  v=vector
    =/  w=walt  (from-xpub xpub.v fprint ~ ~ ~)
    =/  addis=(list [address:btc addi])
      %+  turn  ins.v
      |=  i=insel
      :-  (~(mk-address wad w chyg.i) idx.i)
      [%.y %0 0 (sy ~[utxo.i])]
    ?~  addis  ~
    =.  w  w(wach (my addis
    %+  expect-eq
      !>(chng.expect.v)
      !>(+:~(with-change sut [w eny.v block.v ~ feyb.v outs.v]))
  --
  ::  don't allow dust outputs
  ::
--