open-consul/command/rtt_test.go

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package command
import (
"fmt"
"strings"
"testing"
"time"
"github.com/hashicorp/consul/command/agent"
"github.com/hashicorp/consul/command/base"
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"github.com/hashicorp/consul/consul/structs"
"github.com/hashicorp/consul/testutil/retry"
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"github.com/hashicorp/serf/coordinate"
"github.com/mitchellh/cli"
)
func testRTTCommand(t *testing.T) (*cli.MockUi, *RTTCommand) {
ui := cli.NewMockUi()
return ui, &RTTCommand{
Command: base.Command{
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UI: ui,
Flags: base.FlagSetClientHTTP,
},
}
}
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func TestRTTCommand_Implements(t *testing.T) {
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t.Parallel()
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var _ cli.Command = &RTTCommand{}
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}
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func TestRTTCommand_Run_BadArgs(t *testing.T) {
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t.Parallel()
_, c := testRTTCommand(t)
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if code := c.Run([]string{}); code != 1 {
t.Fatalf("expected return code 1, got %d", code)
}
if code := c.Run([]string{"node1", "node2", "node3"}); code != 1 {
t.Fatalf("expected return code 1, got %d", code)
}
if code := c.Run([]string{"-wan", "node1", "node2"}); code != 1 {
t.Fatalf("expected return code 1, got %d", code)
}
if code := c.Run([]string{"-wan", "node1.dc1", "node2"}); code != 1 {
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t.Fatalf("expected return code 1, got %d", code)
}
if code := c.Run([]string{"-wan", "node1", "node2.dc1"}); code != 1 {
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t.Fatalf("expected return code 1, got %d", code)
}
}
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func TestRTTCommand_Run_LAN(t *testing.T) {
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t.Parallel()
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updatePeriod := 10 * time.Millisecond
cfg := agent.TestConfig()
cfg.ConsulConfig.CoordinateUpdatePeriod = updatePeriod
a := agent.NewTestAgent(t.Name(), cfg)
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defer a.Shutdown()
// Inject some known coordinates.
c1 := coordinate.NewCoordinate(coordinate.DefaultConfig())
c2 := c1.Clone()
c2.Vec[0] = 0.123
dist_str := fmt.Sprintf("%.3f ms", c1.DistanceTo(c2).Seconds()*1000.0)
{
req := structs.CoordinateUpdateRequest{
Datacenter: a.Config.Datacenter,
Node: a.Config.NodeName,
Coord: c1,
}
var reply struct{}
if err := a.RPC("Coordinate.Update", &req, &reply); err != nil {
t.Fatalf("err: %s", err)
}
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}
{
req := structs.RegisterRequest{
Datacenter: a.Config.Datacenter,
Node: "dogs",
Address: "127.0.0.2",
}
var reply struct{}
if err := a.RPC("Catalog.Register", &req, &reply); err != nil {
t.Fatalf("err: %s", err)
}
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}
{
var reply struct{}
req := structs.CoordinateUpdateRequest{
Datacenter: a.Config.Datacenter,
Node: "dogs",
Coord: c2,
}
if err := a.RPC("Coordinate.Update", &req, &reply); err != nil {
t.Fatalf("err: %s", err)
}
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}
// Ask for the RTT of two known nodes
ui, c := testRTTCommand(t)
args := []string{
"-http-addr=" + a.HTTPAddr(),
a.Config.NodeName,
"dogs",
}
// Wait for the updates to get flushed to the data store.
retry.Run(t, func(r *retry.R) {
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code := c.Run(args)
if code != 0 {
r.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
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}
// Make sure the proper RTT was reported in the output.
expected := fmt.Sprintf("rtt: %s", dist_str)
if !strings.Contains(ui.OutputWriter.String(), expected) {
r.Fatalf("bad: %#v", ui.OutputWriter.String())
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}
})
// Default to the agent's node.
{
ui, c := testRTTCommand(t)
args := []string{
"-http-addr=" + a.HTTPAddr(),
"dogs",
}
code := c.Run(args)
if code != 0 {
t.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
}
// Make sure the proper RTT was reported in the output.
expected := fmt.Sprintf("rtt: %s", dist_str)
if !strings.Contains(ui.OutputWriter.String(), expected) {
t.Fatalf("bad: %#v", ui.OutputWriter.String())
}
}
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// Try an unknown node.
{
ui, c := testRTTCommand(t)
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args := []string{
"-http-addr=" + a.HTTPAddr(),
a.Config.NodeName,
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"nope",
}
code := c.Run(args)
if code != 1 {
t.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
}
}
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}
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func TestRTTCommand_Run_WAN(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), nil)
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defer a.Shutdown()
node := fmt.Sprintf("%s.%s", a.Config.NodeName, a.Config.Datacenter)
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// We can't easily inject WAN coordinates, so we will just query the
// node with itself.
{
ui, c := testRTTCommand(t)
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args := []string{
"-wan",
"-http-addr=" + a.HTTPAddr(),
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node,
node,
}
code := c.Run(args)
if code != 0 {
t.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
}
// Make sure there was some kind of RTT reported in the output.
if !strings.Contains(ui.OutputWriter.String(), "rtt: ") {
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t.Fatalf("bad: %#v", ui.OutputWriter.String())
}
}
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// Default to the agent's node.
{
ui, c := testRTTCommand(t)
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args := []string{
"-wan",
"-http-addr=" + a.HTTPAddr(),
node,
}
code := c.Run(args)
if code != 0 {
t.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
}
// Make sure there was some kind of RTT reported in the output.
if !strings.Contains(ui.OutputWriter.String(), "rtt: ") {
t.Fatalf("bad: %#v", ui.OutputWriter.String())
}
}
// Try an unknown node.
{
ui, c := testRTTCommand(t)
args := []string{
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"-wan",
"-http-addr=" + a.HTTPAddr(),
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node,
"dc1.nope",
}
code := c.Run(args)
if code != 1 {
t.Fatalf("bad: %d: %#v", code, ui.ErrorWriter.String())
}
}
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}