cosmos-sdk/x/staking/keeper/test_common.go
Jeancarlo Barrios 90d6745ccc
feat: migrate x/staking to app wiring (#12102)
## Description
Migrate x/staking to the new app wiring (dependency injection).

Tracking progress at https://github.com/cosmos/cosmos-sdk/issues/12036

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [x] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)
2022-06-03 08:10:20 +00:00

70 lines
1.7 KiB
Go

package keeper // noalias
import (
"bytes"
"math/rand"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/staking/types"
)
// does a certain by-power index record exist
func ValidatorByPowerIndexExists(ctx sdk.Context, keeper *Keeper, power []byte) bool {
store := ctx.KVStore(keeper.storeKey)
return store.Has(power)
}
// update validator for testing
func TestingUpdateValidator(keeper *Keeper, ctx sdk.Context, validator types.Validator, apply bool) types.Validator {
keeper.SetValidator(ctx, validator)
// Remove any existing power key for validator.
store := ctx.KVStore(keeper.storeKey)
deleted := false
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsByPowerIndexKey)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
valAddr := types.ParseValidatorPowerRankKey(iterator.Key())
if bytes.Equal(valAddr, validator.GetOperator()) {
if deleted {
panic("found duplicate power index key")
} else {
deleted = true
}
store.Delete(iterator.Key())
}
}
keeper.SetValidatorByPowerIndex(ctx, validator)
if !apply {
ctx, _ = ctx.CacheContext()
}
_, err := keeper.ApplyAndReturnValidatorSetUpdates(ctx)
if err != nil {
panic(err)
}
validator, found := keeper.GetValidator(ctx, validator.GetOperator())
if !found {
panic("validator expected but not found")
}
return validator
}
// RandomValidator returns a random validator given access to the keeper and ctx
func RandomValidator(r *rand.Rand, keeper *Keeper, ctx sdk.Context) (val types.Validator, ok bool) {
vals := keeper.GetAllValidators(ctx)
if len(vals) == 0 {
return types.Validator{}, false
}
i := r.Intn(len(vals))
return vals[i], true
}