forked from hashicorp/nomad
/
catalog_testing.go
206 lines (177 loc) · 4.87 KB
/
catalog_testing.go
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package consul
import (
"fmt"
"sync"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/nomad/helper"
)
// MockCatalog can be used for testing where the CatalogAPI is needed.
type MockCatalog struct {
logger hclog.Logger
}
func NewMockCatalog(l hclog.Logger) *MockCatalog {
return &MockCatalog{logger: l.Named("mock_consul")}
}
func (m *MockCatalog) Datacenters() ([]string, error) {
dcs := []string{"dc1"}
m.logger.Trace("Datacenters()", "dcs", dcs, "error", "nil")
return dcs, nil
}
func (m *MockCatalog) Service(service, tag string, q *api.QueryOptions) ([]*api.CatalogService, *api.QueryMeta, error) {
m.logger.Trace("Services()", "service", service, "tag", tag, "query_options", q)
return nil, nil, nil
}
// MockAgent is a fake in-memory Consul backend for ServiceClient.
type MockAgent struct {
// maps of what services and checks have been registered
services map[string]*api.AgentServiceRegistration
checks map[string]*api.AgentCheckRegistration
// hits is the total number of times agent methods have been called
hits int
// mu guards above fields
mu sync.Mutex
// when UpdateTTL is called the check ID will have its counter inc'd
checkTTLs map[string]int
// What check status to return from Checks()
checkStatus string
}
// NewMockAgent that returns all checks as passing.
func NewMockAgent() *MockAgent {
return &MockAgent{
services: make(map[string]*api.AgentServiceRegistration),
checks: make(map[string]*api.AgentCheckRegistration),
checkTTLs: make(map[string]int),
checkStatus: api.HealthPassing,
}
}
// getHits returns how many Consul Agent API calls have been made.
func (c *MockAgent) getHits() int {
c.mu.Lock()
defer c.mu.Unlock()
return c.hits
}
// SetStatus that Checks() should return. Returns old status value.
func (c *MockAgent) SetStatus(s string) string {
c.mu.Lock()
old := c.checkStatus
c.checkStatus = s
c.mu.Unlock()
return old
}
func (c *MockAgent) Self() (map[string]map[string]interface{}, error) {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
s := map[string]map[string]interface{}{
"Member": {
"Addr": "127.0.0.1",
"DelegateCur": 4,
"DelegateMax": 5,
"DelegateMin": 2,
"Name": "rusty",
"Port": 8301,
"ProtocolCur": 2,
"ProtocolMax": 5,
"ProtocolMin": 1,
"Status": 1,
"Tags": map[string]interface{}{
"build": "0.8.1:'e9ca44d",
},
},
}
return s, nil
}
func (c *MockAgent) Services() (map[string]*api.AgentService, error) {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
r := make(map[string]*api.AgentService, len(c.services))
for k, v := range c.services {
r[k] = &api.AgentService{
ID: v.ID,
Service: v.Name,
Tags: make([]string, len(v.Tags)),
Meta: helper.CopyMapStringString(v.Meta),
Port: v.Port,
Address: v.Address,
EnableTagOverride: v.EnableTagOverride,
}
copy(r[k].Tags, v.Tags)
}
return r, nil
}
// Checks implements the Agent API Checks method.
func (c *MockAgent) Checks() (map[string]*api.AgentCheck, error) {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
r := make(map[string]*api.AgentCheck, len(c.checks))
for k, v := range c.checks {
r[k] = &api.AgentCheck{
CheckID: v.ID,
Name: v.Name,
Status: c.checkStatus,
Notes: v.Notes,
ServiceID: v.ServiceID,
ServiceName: c.services[v.ServiceID].Name,
}
}
return r, nil
}
// CheckRegs returns the raw AgentCheckRegistrations registered with this mock
// agent.
func (c *MockAgent) CheckRegs() []*api.AgentCheckRegistration {
c.mu.Lock()
defer c.mu.Unlock()
regs := make([]*api.AgentCheckRegistration, 0, len(c.checks))
for _, check := range c.checks {
regs = append(regs, check)
}
return regs
}
func (c *MockAgent) CheckRegister(check *api.AgentCheckRegistration) error {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
c.checks[check.ID] = check
// Be nice and make checks reachable-by-service
scheck := check.AgentServiceCheck
c.services[check.ServiceID].Checks = append(c.services[check.ServiceID].Checks, &scheck)
return nil
}
func (c *MockAgent) CheckDeregister(checkID string) error {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
delete(c.checks, checkID)
delete(c.checkTTLs, checkID)
return nil
}
func (c *MockAgent) ServiceRegister(service *api.AgentServiceRegistration) error {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
c.services[service.ID] = service
return nil
}
func (c *MockAgent) ServiceDeregister(serviceID string) error {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
delete(c.services, serviceID)
return nil
}
func (c *MockAgent) UpdateTTL(id string, output string, status string) error {
c.mu.Lock()
defer c.mu.Unlock()
c.hits++
check, ok := c.checks[id]
if !ok {
return fmt.Errorf("unknown check id: %q", id)
}
// Flip initial status to passing
check.Status = "passing"
c.checkTTLs[id]++
return nil
}