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txn_test.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package api
import (
"strings"
"testing"
"time"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/hashicorp/go-uuid"
"github.com/stretchr/testify/require"
)
func TestAPI_ClientTxn(t *testing.T) {
t.Parallel()
c, s := makeClient(t)
defer s.Stop()
s.WaitForSerfCheck(t)
session := c.Session()
txn := c.Txn()
// Set up a test service and health check.
nodeID, err := uuid.GenerateUUID()
require.NoError(t, err)
catalog := c.Catalog()
reg := &CatalogRegistration{
ID: nodeID,
Node: "foo",
Address: "2.2.2.2",
Service: &AgentService{
ID: "foo1",
Service: "foo",
},
Checks: HealthChecks{
{
CheckID: "bar",
Status: "critical",
Definition: HealthCheckDefinition{
TCP: "1.1.1.1",
IntervalDuration: 5 * time.Second,
TimeoutDuration: 10 * time.Second,
DeregisterCriticalServiceAfterDuration: 20 * time.Second,
},
},
{
CheckID: "baz",
Status: "passing",
Definition: HealthCheckDefinition{
TCP: "2.2.2.2",
Interval: ReadableDuration(40 * time.Second),
Timeout: ReadableDuration(80 * time.Second),
DeregisterCriticalServiceAfter: ReadableDuration(160 * time.Second),
},
},
{
CheckID: "bor",
Status: "critical",
Definition: HealthCheckDefinition{
UDP: "1.1.1.1",
Interval: ReadableDuration(5 * time.Second),
Timeout: ReadableDuration(10 * time.Second),
DeregisterCriticalServiceAfter: ReadableDuration(20 * time.Second),
},
Type: "udp",
},
{
CheckID: "bur",
Status: "passing",
Definition: HealthCheckDefinition{
UDP: "2.2.2.2",
Interval: ReadableDuration(5 * time.Second),
Timeout: ReadableDuration(10 * time.Second),
DeregisterCriticalServiceAfter: ReadableDuration(20 * time.Second),
},
Type: "udp",
},
},
}
_, err = catalog.Register(reg, nil)
require.NoError(t, err)
node, _, err := catalog.Node("foo", nil)
require.NoError(t, err)
require.Equal(t, nodeID, node.Node.ID)
// Make a session.
id, _, err := session.CreateNoChecks(nil, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
defer session.Destroy(id, nil)
// Acquire and get the key via a transaction, but don't supply a valid
// session.
key := testKey()
value := []byte("test")
ops := TxnOps{
&TxnOp{
KV: &KVTxnOp{
Verb: KVLock,
Key: key,
Value: value,
},
},
&TxnOp{
KV: &KVTxnOp{
Verb: KVGet,
Key: key,
},
},
&TxnOp{
Node: &NodeTxnOp{
Verb: NodeGet,
Node: Node{Node: "foo"},
},
},
&TxnOp{
Service: &ServiceTxnOp{
Verb: ServiceGet,
Node: "foo",
Service: AgentService{ID: "foo1"},
},
},
&TxnOp{
Check: &CheckTxnOp{
Verb: CheckGet,
Check: HealthCheck{Node: "foo", CheckID: "bar"},
},
},
&TxnOp{
Check: &CheckTxnOp{
Verb: CheckGet,
Check: HealthCheck{Node: "foo", CheckID: "baz"},
},
},
&TxnOp{
Check: &CheckTxnOp{
Verb: CheckGet,
Check: HealthCheck{Node: "foo", CheckID: "bor"},
},
},
&TxnOp{
Check: &CheckTxnOp{
Verb: CheckGet,
Check: HealthCheck{Node: "foo", CheckID: "bur"},
},
},
}
ok, ret, _, err := txn.Txn(ops, nil)
if err != nil {
t.Fatalf("err: %v", err)
} else if ok {
t.Fatalf("transaction should have failed")
}
if ret == nil || len(ret.Errors) != 2 || len(ret.Results) != 0 {
t.Fatalf("bad: %v", ret.Errors[2])
}
if ret.Errors[0].OpIndex != 0 ||
!strings.Contains(ret.Errors[0].What, "missing session") ||
!strings.Contains(ret.Errors[1].What, "doesn't exist") {
t.Fatalf("bad: %v", ret.Errors[0])
}
// Now poke in a real session and try again.
ops[0].KV.Session = id
ok, ret, _, err = txn.Txn(ops, nil)
if err != nil {
t.Fatalf("err: %v", err)
} else if !ok {
t.Fatalf("transaction failure")
}
if ret == nil || len(ret.Errors) != 0 || len(ret.Results) != 8 {
t.Fatalf("bad: %v", ret)
}
expected := TxnResults{
&TxnResult{
KV: &KVPair{
Key: key,
Session: id,
LockIndex: 1,
CreateIndex: ret.Results[0].KV.CreateIndex,
ModifyIndex: ret.Results[0].KV.ModifyIndex,
Namespace: ret.Results[0].KV.Namespace,
Partition: defaultPartition,
},
},
&TxnResult{
KV: &KVPair{
Key: key,
Session: id,
Value: []byte("test"),
LockIndex: 1,
CreateIndex: ret.Results[1].KV.CreateIndex,
ModifyIndex: ret.Results[1].KV.ModifyIndex,
Namespace: ret.Results[0].KV.Namespace,
Partition: defaultPartition,
},
},
&TxnResult{
Node: &Node{
ID: nodeID,
Node: "foo",
Partition: defaultPartition,
Address: "2.2.2.2",
Datacenter: "dc1",
CreateIndex: ret.Results[2].Node.CreateIndex,
ModifyIndex: ret.Results[2].Node.CreateIndex,
},
},
&TxnResult{
Service: &CatalogService{
ID: "foo1",
CreateIndex: ret.Results[3].Service.CreateIndex,
ModifyIndex: ret.Results[3].Service.CreateIndex,
Partition: defaultPartition,
Namespace: defaultNamespace,
},
},
&TxnResult{
Check: &HealthCheck{
Node: "foo",
CheckID: "bar",
Status: "critical",
Definition: HealthCheckDefinition{
TCP: "1.1.1.1",
Interval: ReadableDuration(5 * time.Second),
IntervalDuration: 5 * time.Second,
Timeout: ReadableDuration(10 * time.Second),
TimeoutDuration: 10 * time.Second,
DeregisterCriticalServiceAfter: ReadableDuration(20 * time.Second),
DeregisterCriticalServiceAfterDuration: 20 * time.Second,
},
Type: "tcp",
Partition: defaultPartition,
Namespace: defaultNamespace,
CreateIndex: ret.Results[4].Check.CreateIndex,
ModifyIndex: ret.Results[4].Check.CreateIndex,
},
},
&TxnResult{
Check: &HealthCheck{
Node: "foo",
CheckID: "baz",
Status: "passing",
Definition: HealthCheckDefinition{
TCP: "2.2.2.2",
Interval: ReadableDuration(40 * time.Second),
IntervalDuration: 40 * time.Second,
Timeout: ReadableDuration(80 * time.Second),
TimeoutDuration: 80 * time.Second,
DeregisterCriticalServiceAfter: ReadableDuration(160 * time.Second),
DeregisterCriticalServiceAfterDuration: 160 * time.Second,
},
Type: "tcp",
Partition: defaultPartition,
Namespace: defaultNamespace,
CreateIndex: ret.Results[4].Check.CreateIndex,
ModifyIndex: ret.Results[4].Check.CreateIndex,
},
},
&TxnResult{
Check: &HealthCheck{
Node: "foo",
CheckID: "bor",
Status: "critical",
Definition: HealthCheckDefinition{
UDP: "1.1.1.1",
Interval: ReadableDuration(5 * time.Second),
IntervalDuration: 5 * time.Second,
Timeout: ReadableDuration(10 * time.Second),
TimeoutDuration: 10 * time.Second,
DeregisterCriticalServiceAfter: ReadableDuration(20 * time.Second),
DeregisterCriticalServiceAfterDuration: 20 * time.Second,
},
Type: "udp",
Partition: defaultPartition,
Namespace: defaultNamespace,
CreateIndex: ret.Results[4].Check.CreateIndex,
ModifyIndex: ret.Results[4].Check.CreateIndex,
},
},
&TxnResult{
Check: &HealthCheck{
Node: "foo",
CheckID: "bur",
Status: "passing",
Definition: HealthCheckDefinition{
UDP: "2.2.2.2",
Interval: ReadableDuration(5 * time.Second),
IntervalDuration: 5 * time.Second,
Timeout: ReadableDuration(10 * time.Second),
TimeoutDuration: 10 * time.Second,
DeregisterCriticalServiceAfter: ReadableDuration(20 * time.Second),
DeregisterCriticalServiceAfterDuration: 20 * time.Second,
},
Type: "udp",
Partition: defaultPartition,
Namespace: defaultNamespace,
CreateIndex: ret.Results[4].Check.CreateIndex,
ModifyIndex: ret.Results[4].Check.CreateIndex,
},
},
}
require.Equal(t, expected, ret.Results)
retry.Run(t, func(r *retry.R) {
// Run a read-only transaction.
ops = TxnOps{
&TxnOp{
KV: &KVTxnOp{
Verb: KVGet,
Key: key,
},
},
&TxnOp{
Node: &NodeTxnOp{
Verb: NodeGet,
Node: Node{ID: s.Config.NodeID, Node: s.Config.NodeName},
},
},
}
ok, ret, _, err = txn.Txn(ops, nil)
if err != nil {
r.Fatalf("err: %v", err)
} else if !ok {
r.Fatalf("transaction failure")
}
expected = TxnResults{
&TxnResult{
KV: &KVPair{
Key: key,
Session: id,
Value: []byte("test"),
LockIndex: 1,
CreateIndex: ret.Results[0].KV.CreateIndex,
ModifyIndex: ret.Results[0].KV.ModifyIndex,
Namespace: ret.Results[0].KV.Namespace,
Partition: defaultPartition,
},
},
&TxnResult{
Node: &Node{
ID: s.Config.NodeID,
Node: s.Config.NodeName,
Partition: defaultPartition,
Address: "127.0.0.1",
Datacenter: "dc1",
TaggedAddresses: map[string]string{
"lan": s.Config.Bind,
"lan_ipv4": s.Config.Bind,
"wan": s.Config.Bind,
"wan_ipv4": s.Config.Bind,
},
Meta: map[string]string{
"consul-network-segment": "",
"consul-version": s.Config.Version,
},
CreateIndex: ret.Results[1].Node.CreateIndex,
ModifyIndex: ret.Results[1].Node.ModifyIndex,
},
},
}
require.Equal(r, expected, ret.Results)
})
// Sanity check using the regular GET API.
kv := c.KV()
pair, meta, err := kv.Get(key, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
if pair == nil {
t.Fatalf("expected value: %#v", pair)
}
if pair.LockIndex != 1 {
t.Fatalf("Expected lock: %v", pair)
}
if pair.Session != id {
t.Fatalf("Expected lock: %v", pair)
}
if meta.LastIndex == 0 {
t.Fatalf("unexpected value: %#v", meta)
}
}