test: add evidence e2e tests (#5488)

test/e2e/pkg/manifest.go

@@ -115,6 +115,16 @@ type ManifestNode struct {
 	// pause:      temporarily pauses (freezes) the node
 	// restart:    restarts the node, shutting it down with SIGTERM
 	Perturb []string `toml:"perturb"`
+
+	// Misbehaviors sets how a validator behaves during consensus at a
+	// certain height. Multiple misbehaviors at different heights can be used
+	//
+	// An example of misbehaviors
+	//    { 10 = "double-prevote", 20 = "double-prevote"}
+	//
+	// For more information, look at the readme in the maverick folder.
+	// A list of all behaviors can be found in ../maverick/consensus/behavior.go
+	Misbehaviors map[string]string `toml:"misbehaviors"`
 }
 
 // Save saves the testnet manifest to a file.

test/e2e/pkg/testnet.go

@@ -15,6 +15,7 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	rpchttp "github.com/tendermint/tendermint/rpc/client/http"
+	mcs "github.com/tendermint/tendermint/test/maverick/consensus"
 )
 
 const (
@@ -78,6 +79,7 @@ type Node struct {
 	Seeds            []*Node
 	PersistentPeers  []*Node
 	Perturbations    []Perturbation
+	Misbehaviors     map[int64]string
 }
 
 // LoadTestnet loads a testnet from a manifest file, using the filename to
@@ -147,6 +149,7 @@ func LoadTestnet(file string) (*Testnet, error) {
 			SnapshotInterval: nodeManifest.SnapshotInterval,
 			RetainBlocks:     nodeManifest.RetainBlocks,
 			Perturbations:    []Perturbation{},
+			Misbehaviors:     make(map[int64]string),
 		}
 		if nodeManifest.Mode != "" {
 			node.Mode = Mode(nodeManifest.Mode)
@@ -166,6 +169,13 @@ func LoadTestnet(file string) (*Testnet, error) {
 		for _, p := range nodeManifest.Perturb {
 			node.Perturbations = append(node.Perturbations, Perturbation(p))
 		}
+		for heightString, misbehavior := range nodeManifest.Misbehaviors {
+			height, err := strconv.ParseInt(heightString, 10, 64)
+			if err != nil {
+				return nil, fmt.Errorf("unable to parse height %s to int64: %w", heightString, err)
+			}
+			node.Misbehaviors[height] = misbehavior
+		}
 		testnet.Nodes = append(testnet.Nodes, node)
 	}
 
@@ -324,6 +334,26 @@ func (n Node) Validate(testnet Testnet) error {
 			return fmt.Errorf("invalid perturbation %q", perturbation)
 		}
 	}
+
+	if (n.PrivvalProtocol != "file" || n.Mode != "validator") && len(n.Misbehaviors) != 0 {
+		return errors.New("must be using \"file\" privval protocol to implement misbehaviors")
+	}
+
+	for height, misbehavior := range n.Misbehaviors {
+		if height < n.StartAt {
+			return fmt.Errorf("misbehavior height %d is before start height %d", height, n.StartAt)
+		}
+		exists := false
+		for possibleBehaviors := range mcs.MisbehaviorList {
+			if possibleBehaviors == misbehavior {
+				exists = true
+			}
+		}
+		if !exists {
+			return fmt.Errorf("misbehavior %s does not exist", misbehavior)
+		}
+	}
+
 	return nil
 }