minitor-go/main_test.go

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package main
import "testing"
func TestCheckMonitors(t *testing.T) {
cases := []struct {
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config Config
expectErr bool
name string
}{
{
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config: Config{},
expectErr: false,
name: "Empty",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Success",
Command: CommandOrShell{Command: []string{"true"}},
},
},
},
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expectErr: false,
name: "Monitor success, no alerts",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Failure",
Command: CommandOrShell{Command: []string{"false"}},
AlertAfter: 1,
},
},
},
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expectErr: false,
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name: "Monitor failure, no alerts",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Success",
Command: CommandOrShell{Command: []string{"ls"}},
alertCount: 1,
},
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},
},
expectErr: false,
name: "Monitor recovery, no alerts",
},
{
config: Config{
Monitors: []*Monitor{
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{
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Name: "Failure",
Command: CommandOrShell{Command: []string{"false"}},
AlertDown: []string{"unknown"},
AlertAfter: 1,
},
},
},
expectErr: true,
name: "Monitor failure, unknown alerts",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Success",
Command: CommandOrShell{Command: []string{"true"}},
AlertUp: []string{"unknown"},
alertCount: 1,
},
},
},
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expectErr: true,
name: "Monitor recovery, unknown alerts",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Failure",
Command: CommandOrShell{Command: []string{"false"}},
AlertDown: []string{"good"},
AlertAfter: 1,
},
},
Alerts: map[string]*Alert{
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"good": {
Command: CommandOrShell{Command: []string{"true"}},
},
},
},
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expectErr: false,
name: "Monitor failure, successful alert",
},
{
config: Config{
Monitors: []*Monitor{
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{
Name: "Failure",
Command: CommandOrShell{Command: []string{"false"}},
AlertDown: []string{"bad"},
AlertAfter: 1,
},
},
Alerts: map[string]*Alert{
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"bad": {
Name: "bad",
Command: CommandOrShell{Command: []string{"false"}},
},
},
},
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expectErr: true,
name: "Monitor failure, bad alert",
},
}
for _, c := range cases {
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err := c.config.Init()
if err != nil {
t.Errorf("checkMonitors(%s): unexpected error reading config: %v", c.name, err)
}
err = checkMonitors(&c.config)
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if err == nil && c.expectErr {
t.Errorf("checkMonitors(%s): Expected panic, the code did not panic", c.name)
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} else if err != nil && !c.expectErr {
t.Errorf("checkMonitors(%s): Did not expect an error, but we got one anyway: %v", c.name, err)
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}
}
}
func TestFirstRunAlerts(t *testing.T) {
cases := []struct {
config Config
expectErr bool
startupAlerts []string
name string
}{
{
config: Config{},
expectErr: false,
startupAlerts: []string{},
name: "Empty",
},
{
config: Config{},
expectErr: true,
startupAlerts: []string{"missing"},
name: "Unknown",
},
{
config: Config{
Alerts: map[string]*Alert{
"good": {
Command: CommandOrShell{Command: []string{"true"}},
},
},
},
expectErr: false,
startupAlerts: []string{"good"},
name: "Successful alert",
},
{
config: Config{
Alerts: map[string]*Alert{
"bad": {
Name: "bad",
Command: CommandOrShell{Command: []string{"false"}},
},
},
},
expectErr: true,
startupAlerts: []string{"bad"},
name: "Failed alert",
},
}
for _, c := range cases {
err := c.config.Init()
if err != nil {
t.Errorf("sendFirstRunAlerts(%s): unexpected error reading config: %v", c.name, err)
}
err = sendStartupAlerts(&c.config, c.startupAlerts)
if err == nil && c.expectErr {
t.Errorf("sendFirstRunAlerts(%s): Expected error, the code did not error", c.name)
} else if err != nil && !c.expectErr {
t.Errorf("sendFirstRunAlerts(%s): Did not expect an error, but we got one anyway: %v", c.name, err)
}
}
}