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package mock
import (
"fmt"
"strings"
"github.com/tendermint/tendermint/light/provider"
"github.com/tendermint/tendermint/types"
)
type Mock struct {
chainID string
headers map[int64]*types.SignedHeader
vals map[int64]*types.ValidatorSet
evidenceToReport map[string]types.Evidence // hash => evidence
}
var _ provider.Provider = (*Mock)(nil)
// New creates a mock provider with the given set of headers and validator
// sets.
func New(chainID string, headers map[int64]*types.SignedHeader, vals map[int64]*types.ValidatorSet) *Mock {
return &Mock{
chainID: chainID,
headers: headers,
vals: vals,
evidenceToReport: make(map[string]types.Evidence),
}
}
// ChainID returns the blockchain ID.
func (p *Mock) ChainID() string {
return p.chainID
}
func (p *Mock) String() string {
var headers strings.Builder
for _, h := range p.headers {
fmt.Fprintf(&headers, " %d:%X", h.Height, h.Hash())
}
var vals strings.Builder
for _, v := range p.vals {
fmt.Fprintf(&vals, " %X", v.Hash())
}
return fmt.Sprintf("Mock{headers: %s, vals: %v}", headers.String(), vals.String())
}
func (p *Mock) SignedHeader(height int64) (*types.SignedHeader, error) {
if height == 0 && len(p.headers) > 0 {
return p.headers[int64(len(p.headers))], nil
}
if _, ok := p.headers[height]; ok {
return p.headers[height], nil
}
return nil, provider.ErrSignedHeaderNotFound
}
func (p *Mock) ValidatorSet(height int64) (*types.ValidatorSet, error) {
if height == 0 && len(p.vals) > 0 {
return p.vals[int64(len(p.vals))], nil
}
if _, ok := p.vals[height]; ok {
return p.vals[height], nil
}
return nil, provider.ErrValidatorSetNotFound
}
func (p *Mock) ReportEvidence(ev types.Evidence) error {
p.evidenceToReport[string(ev.Hash())] = ev
return nil
}
func (p *Mock) HasEvidence(ev types.Evidence) bool {
_, ok := p.evidenceToReport[string(ev.Hash())]
return ok
}