test: e2e/staking to system tests (#21882)

(cherry picked from commit c971f75)

Author: JulianToledano

tests/e2e/staking/cli_test.go

@@ -182,7 +182,7 @@ go test -mod=readonly -tags='system_test' -v ./...  --run TestQueryTotalSupply -
 ## Part 4: Set state via TX
 
 Complexer workflows and tests require modifying state on a running chain. This works only with builtin logic and operations.
-If we want to burn some our new tokens, we need to submit a bank burn message to do this.
+If we want to burn some of our new tokens, we need to submit a bank burn message to do this.
 The CLI wrapper works similar to the query. Just pass the parameters. It uses the `node0` key as *default*:
 
 ```go

tests/e2e/staking/suite.go

@@ -12,6 +12,7 @@ import (
 func TestStakeUnstake(t *testing.T) {
 	// Scenario:
 	// delegate tokens to validator
+	// check validator has been updated
 	// undelegate some tokens
 
 	sut.ResetChain(t)
@@ -29,24 +30,32 @@ func TestStakeUnstake(t *testing.T) {
 	// query validator address to delegate tokens
 	rsp := cli.CustomQuery("q", "staking", "validators")
 	valAddr := gjson.Get(rsp, "validators.#.operator_address").Array()[0].String()
+	valPk := gjson.Get(rsp, "validators.#.consensus_pubkey.value").Array()[0].String()
 
 	// stake tokens
-	rsp = cli.RunAndWait("tx", "staking", "delegate", valAddr, "10000stake", "--from="+account1Addr, "--fees=1stake")
+	rsp = cli.RunAndWait("tx", "staking", "delegate", valAddr, "1000000stake", "--from="+account1Addr, "--fees=1stake")
 	RequireTxSuccess(t, rsp)
 
 	t.Log(cli.QueryBalance(account1Addr, "stake"))
-	assert.Equal(t, int64(9989999), cli.QueryBalance(account1Addr, "stake"))
+	assert.Equal(t, int64(8999999), cli.QueryBalance(account1Addr, "stake"))
+
+	// check validator has been updated
+	rsp = cli.CustomQuery("q", "block-results", gjson.Get(rsp, "height").String())
+	validatorUpdates := gjson.Get(rsp, "validator_updates").Array()
+	assert.NotEmpty(t, validatorUpdates)
+	vpk := gjson.Get(validatorUpdates[0].String(), "pub_key_bytes").String()
+	assert.Equal(t, vpk, valPk)
 
 	rsp = cli.CustomQuery("q", "staking", "delegation", account1Addr, valAddr)
-	assert.Equal(t, "10000", gjson.Get(rsp, "delegation_response.balance.amount").String(), rsp)
+	assert.Equal(t, "1000000", gjson.Get(rsp, "delegation_response.balance.amount").String(), rsp)
 	assert.Equal(t, "stake", gjson.Get(rsp, "delegation_response.balance.denom").String(), rsp)
 
 	// unstake tokens
 	rsp = cli.RunAndWait("tx", "staking", "unbond", valAddr, "5000stake", "--from="+account1Addr, "--fees=1stake")
 	RequireTxSuccess(t, rsp)
 
 	rsp = cli.CustomQuery("q", "staking", "delegation", account1Addr, valAddr)
-	assert.Equal(t, "5000", gjson.Get(rsp, "delegation_response.balance.amount").String(), rsp)
+	assert.Equal(t, "995000", gjson.Get(rsp, "delegation_response.balance.amount").String(), rsp)
 	assert.Equal(t, "stake", gjson.Get(rsp, "delegation_response.balance.denom").String(), rsp)
 
 	rsp = cli.CustomQuery("q", "staking", "unbonding-delegation", account1Addr, valAddr)