Function subTestIter

trie/slimtrie_scan_test.go:262–311

(
	t *testing.T,
	st *SlimTrie,
	keys []string,
	scanFromKeys []string,
)

}
func subTestIter(
	t *testing.T,
	st *SlimTrie,
	keys []string,
	scanFromKeys []string,
) {
	t.Run("NewIter", func(t *testing.T) {

		ta := require.New(t)

		for _, sk := range scanFromKeys {
			idx := sort.SearchStrings(keys, sk)

			{ // test exclusive
				nxt := st.NewIter(sk, false, true)
				gotKey, _ := nxt()
				if idx == len(keys) {
					ta.Nil(gotKey, "newIter from: %s %v, idx: %d", sk, []byte(sk), idx)
				} else {
					if keys[idx] == sk {
						ta.NotEqual([]byte(keys[idx]), gotKey, "newIter from: %s %v, idx: %d", sk, []byte(sk), idx)
					} else {
						ta.Equal([]byte(keys[idx]), gotKey, "newIter from: %s %v, idx: %d", sk, []byte(sk), idx)
					}
				}
			}

			nxt := st.NewIter(sk, true, true)

			var i int32
			for i = int32(idx); i < int32(len(keys)) && i < int32(idx+200); i++ {
				key := keys[i]
				gotKey, gotVal := nxt()
				ta.Equal([]byte(key), gotKey, "newIter from: %s %v, idx: %d", sk, []byte(sk), idx)
				ta.Equal(st.encoder.Encode(i), gotVal, "newIter from: %s %v, idx: %d", sk, []byte(sk), idx)
			}
			if i == int32(len(keys)) {
				ta.Nil(nxt())
			}

			{ // newIter without yielding value
				nxt := st.NewIter(sk, true, false)
				_, gotVal := nxt()
				ta.Nil(gotVal)
				_, gotVal = nxt()
				ta.Nil(gotVal)
			}
		}
	})
}

func subTestScan(
	t *testing.T,