test: add E2E tests for double voting evidence handling

tests/e2e/main.go

@@ -63,7 +63,9 @@ func main() {
 		{DemocracyTestRun(false), rewardDenomConsumerSteps},
 		{SlashThrottleTestRun(), slashThrottleSteps},
 		{ConsumerMisbehaviourTestRun(), consumerMisbehaviourSteps},
+		{DefaultTestRun(), consumerDoubleSignSteps},
 	}
+
 	if includeMultiConsumer != nil && *includeMultiConsumer {
 		testRuns = append(testRuns, testRunWithSteps{MultiConsumerTestRun(), multipleConsumers})
 	}

tests/e2e/steps.go

@@ -91,6 +91,14 @@ var changeoverSteps = concatSteps(
 var consumerMisbehaviourSteps = concatSteps(
 	// start provider and consumer chain
 	stepsStartChainsWithSoftOptOut("consu"),
-	// make consumer validator to misbehave and get jail
+	// make a consumer validator to misbehave and get jailed
 	stepsCauseConsumerMisbehaviour("consu"),
 )
+
+var consumerDoubleSignSteps = concatSteps(
+	// start provider and consumer chain
+	stepsStartChains([]string{"consu"}, false),
+
+	// make a consumer validator double sign and get jailed
+	stepsCauseDoubleSignOnConsumer("consu", "provi"),
+)

tests/e2e/steps_double_sign.go

@@ -128,3 +128,79 @@ func stepsDoubleSignOnProviderAndConsumer(consumerName string) []Step {
 		},
 	}
 }
+
+// Steps that make bob double sign on the consumer
+func stepsCauseDoubleSignOnConsumer(consumerName, providerName string) []Step {
+	return []Step{
+		{
+			action: doublesignSlashAction{
+				chain:     chainID(consumerName),
+				validator: validatorID("bob"),
+			},
+			state: State{
+				chainID(providerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   500,
+						validatorID("carol"): 500,
+					},
+				},
+				chainID(consumerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   500,
+						validatorID("carol"): 500,
+					},
+				},
+			},
+		},
+		// detect the double voting infraction
+		// and jail bob on the provider
+		{
+			action: detectConsumerEvidenceAction{
+				chain: chainID(consumerName),
+			},
+			state: State{
+				chainID(providerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   0,
+						validatorID("carol"): 500,
+					},
+				},
+				chainID(consumerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   500,
+						validatorID("carol"): 500,
+					},
+				},
+			},
+		},
+		// consumer learns about the jailing
+		{
+			action: relayPacketsAction{
+				chainA:  chainID(providerName),
+				chainB:  chainID(consumerName),
+				port:    "provider",
+				channel: 0,
+			},
+			state: State{
+				chainID(providerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   0,
+						validatorID("carol"): 500,
+					},
+				},
+				chainID(consumerName): ChainState{
+					ValPowers: &map[validatorID]uint{
+						validatorID("alice"): 500,
+						validatorID("bob"):   0,
+						validatorID("carol"): 500,
+					},
+				},
+			},
+		},
+	}
+}