consul/command/agent/health_endpoint_test.go
James Phillips c248b0017a Fixes nil slices from HTTP endpoints.
These would manifest in the HTTP output as Javascript nulls instead of
empty lists, so we had unintentionally changed the interface while
porting to the new state store. We added code to each HTTP endpoint to
convert nil slices to empty ones so they JSON-ify properly, and we added
tests to catch this in the future.
2015-11-14 21:05:37 -08:00

592 lines
14 KiB
Go

package agent
import (
"fmt"
"net/http"
"net/http/httptest"
"os"
"reflect"
"testing"
"time"
"github.com/hashicorp/consul/consul/structs"
"github.com/hashicorp/consul/testutil"
"github.com/hashicorp/serf/coordinate"
)
func TestHealthChecksInState(t *testing.T) {
httpTest(t, func(srv *HTTPServer) {
req, err := http.NewRequest("GET", "/v1/health/state/warning?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
testutil.WaitForResult(func() (bool, error) {
resp := httptest.NewRecorder()
obj, err := srv.HealthChecksInState(resp, req)
if err != nil {
return false, err
}
if err := checkIndex(resp); err != nil {
return false, err
}
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
return false, fmt.Errorf("bad: %v", obj)
}
return true, nil
}, func(err error) { t.Fatalf("err: %v", err) })
})
httpTest(t, func(srv *HTTPServer) {
req, err := http.NewRequest("GET", "/v1/health/state/passing?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
testutil.WaitForResult(func() (bool, error) {
resp := httptest.NewRecorder()
obj, err := srv.HealthChecksInState(resp, req)
if err != nil {
return false, err
}
if err := checkIndex(resp); err != nil {
return false, err
}
// Should be 1 health check for the server
nodes := obj.(structs.HealthChecks)
if len(nodes) != 1 {
return false, fmt.Errorf("bad: %v", obj)
}
return true, nil
}, func(err error) { t.Fatalf("err: %v", err) })
})
}
func TestHealthChecksInState_DistanceSort(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: "bar",
Name: "node check",
Status: structs.HealthCritical,
},
}
var out struct{}
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err := http.NewRequest("GET", "/v1/health/state/critical?dc=dc1&near=foo", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthChecksInState(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := srv.agent.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
time.Sleep(200 * time.Millisecond)
// Query again and now foo should have moved to the front of the line.
resp = httptest.NewRecorder()
obj, err = srv.HealthChecksInState(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
}
func TestHealthNodeChecks(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
req, err := http.NewRequest("GET", "/v1/health/node/nope?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthNodeChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
req, err = http.NewRequest("GET",
fmt.Sprintf("/v1/health/node/%s?dc=dc1", srv.agent.config.NodeName), nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = httptest.NewRecorder()
obj, err = srv.HealthNodeChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for the server
nodes = obj.(structs.HealthChecks)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthServiceChecks(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
req, err := http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: srv.agent.config.NodeName,
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: srv.agent.config.NodeName,
Name: "consul check",
ServiceID: "consul",
},
}
var out struct{}
if err = srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err = http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = httptest.NewRecorder()
obj, err = srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for consul
nodes = obj.(structs.HealthChecks)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthServiceChecks_DistanceSort(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
Check: &structs.HealthCheck{
Node: "bar",
Name: "test check",
ServiceID: "test",
},
}
var out struct{}
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err := http.NewRequest("GET", "/v1/health/checks/test?dc=dc1&near=foo", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := srv.agent.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
time.Sleep(200 * time.Millisecond)
// Query again and now foo should have moved to the front of the line.
resp = httptest.NewRecorder()
obj, err = srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
}
func TestHealthServiceNodes(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
req, err := http.NewRequest("GET", "/v1/health/service/consul?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
req, err = http.NewRequest("GET", "/v1/health/service/nope?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = httptest.NewRecorder()
obj, err = srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes = obj.(structs.CheckServiceNodes)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
}
var out struct{}
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err = http.NewRequest("GET", "/v1/health/service/test?dc=dc1", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = httptest.NewRecorder()
obj, err = srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list for checks
nodes = obj.(structs.CheckServiceNodes)
if len(nodes) != 1 || nodes[0].Checks == nil || len(nodes[0].Checks) != 0 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthServiceNodes_DistanceSort(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
Check: &structs.HealthCheck{
Node: "bar",
Name: "test check",
ServiceID: "test",
},
}
var out struct{}
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err := http.NewRequest("GET", "/v1/health/service/test?dc=dc1&near=foo", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node.Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node.Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := srv.agent.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
time.Sleep(200 * time.Millisecond)
// Query again and now foo should have moved to the front of the line.
resp = httptest.NewRecorder()
obj, err = srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.CheckServiceNodes)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node.Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node.Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
}
func TestHealthServiceNodes_PassingFilter(t *testing.T) {
dir, srv := makeHTTPServer(t)
defer os.RemoveAll(dir)
defer srv.Shutdown()
defer srv.agent.Shutdown()
testutil.WaitForLeader(t, srv.agent.RPC, "dc1")
// Create a failing service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: srv.agent.config.NodeName,
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: srv.agent.config.NodeName,
Name: "consul check",
ServiceID: "consul",
Status: structs.HealthCritical,
},
}
var out struct{}
if err := srv.agent.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, err := http.NewRequest("GET", "/v1/health/service/consul?passing", nil)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := httptest.NewRecorder()
obj, err := srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 0 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
}
func TestFilterNonPassing(t *testing.T) {
nodes := structs.CheckServiceNodes{
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: structs.HealthCritical,
},
&structs.HealthCheck{
Status: structs.HealthCritical,
},
},
},
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: structs.HealthCritical,
},
&structs.HealthCheck{
Status: structs.HealthCritical,
},
},
},
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: structs.HealthPassing,
},
},
},
}
out := filterNonPassing(nodes)
if len(out) != 1 && reflect.DeepEqual(out[0], nodes[2]) {
t.Fatalf("bad: %v", out)
}
}