79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
package gaskv_test
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import (
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"fmt"
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"testing"
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dbm "github.com/tendermint/tendermint/libs/db"
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"github.com/cosmos/cosmos-sdk/store/dbadapter"
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"github.com/cosmos/cosmos-sdk/store/gaskv"
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"github.com/cosmos/cosmos-sdk/store/types"
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"github.com/stretchr/testify/require"
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)
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func newGasKVStore() types.KVStore {
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meter := types.NewGasMeter(10000)
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mem := dbadapter.Store{dbm.NewMemDB()}
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return gaskv.NewStore(mem, meter, types.KVGasConfig())
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}
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func bz(s string) []byte { return []byte(s) }
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func keyFmt(i int) []byte { return bz(fmt.Sprintf("key%0.8d", i)) }
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func valFmt(i int) []byte { return bz(fmt.Sprintf("value%0.8d", i)) }
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func TestGasKVStoreBasic(t *testing.T) {
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mem := dbadapter.Store{dbm.NewMemDB()}
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meter := types.NewGasMeter(10000)
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st := gaskv.NewStore(mem, meter, types.KVGasConfig())
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require.Empty(t, st.Get(keyFmt(1)), "Expected `key1` to be empty")
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st.Set(keyFmt(1), valFmt(1))
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require.Equal(t, valFmt(1), st.Get(keyFmt(1)))
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st.Delete(keyFmt(1))
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require.Empty(t, st.Get(keyFmt(1)), "Expected `key1` to be empty")
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require.Equal(t, meter.GasConsumed(), types.Gas(6429))
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}
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func TestGasKVStoreIterator(t *testing.T) {
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mem := dbadapter.Store{dbm.NewMemDB()}
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meter := types.NewGasMeter(10000)
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st := gaskv.NewStore(mem, meter, types.KVGasConfig())
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require.Empty(t, st.Get(keyFmt(1)), "Expected `key1` to be empty")
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require.Empty(t, st.Get(keyFmt(2)), "Expected `key2` to be empty")
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st.Set(keyFmt(1), valFmt(1))
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st.Set(keyFmt(2), valFmt(2))
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iterator := st.Iterator(nil, nil)
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ka := iterator.Key()
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require.Equal(t, ka, keyFmt(1))
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va := iterator.Value()
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require.Equal(t, va, valFmt(1))
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iterator.Next()
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kb := iterator.Key()
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require.Equal(t, kb, keyFmt(2))
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vb := iterator.Value()
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require.Equal(t, vb, valFmt(2))
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iterator.Next()
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require.False(t, iterator.Valid())
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require.Panics(t, iterator.Next)
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require.Equal(t, meter.GasConsumed(), types.Gas(6987))
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}
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func TestGasKVStoreOutOfGasSet(t *testing.T) {
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mem := dbadapter.Store{dbm.NewMemDB()}
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meter := types.NewGasMeter(0)
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st := gaskv.NewStore(mem, meter, types.KVGasConfig())
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require.Panics(t, func() { st.Set(keyFmt(1), valFmt(1)) }, "Expected out-of-gas")
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}
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func TestGasKVStoreOutOfGasIterator(t *testing.T) {
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mem := dbadapter.Store{dbm.NewMemDB()}
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meter := types.NewGasMeter(20000)
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st := gaskv.NewStore(mem, meter, types.KVGasConfig())
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st.Set(keyFmt(1), valFmt(1))
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iterator := st.Iterator(nil, nil)
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iterator.Next()
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require.Panics(t, func() { iterator.Value() }, "Expected out-of-gas")
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}
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