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314 lines
10 KiB
314 lines
10 KiB
package main
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import (
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"log"
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"testing"
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"time"
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)
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// TestMonitorIsValid tests the Monitor.IsValid()
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func TestMonitorIsValid(t *testing.T) {
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cases := []struct {
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monitor Monitor
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expected bool
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name string
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}{
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{Monitor{Command: CommandOrShell{Command: []string{"echo", "test"}}, AlertDown: []string{"log"}}, true, "Command only"},
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{Monitor{Command: CommandOrShell{ShellCommand: "echo test"}, AlertDown: []string{"log"}}, true, "CommandShell only"},
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{Monitor{Command: CommandOrShell{Command: []string{"echo", "test"}}}, false, "No AlertDown"},
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{Monitor{AlertDown: []string{"log"}}, false, "No commands"},
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{Monitor{Command: CommandOrShell{Command: []string{"echo", "test"}}, AlertDown: []string{"log"}, AlertAfter: -1}, false, "Invalid alert threshold, -1"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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actual := c.monitor.IsValid()
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if actual != c.expected {
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t.Errorf("IsValid(%v), expected=%t actual=%t", c.name, c.expected, actual)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorShouldCheck tests the Monitor.ShouldCheck()
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func TestMonitorShouldCheck(t *testing.T) {
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timeNow := time.Now()
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timeTenSecAgo := time.Now().Add(time.Second * -10)
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timeTwentySecAgo := time.Now().Add(time.Second * -20)
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cases := []struct {
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monitor Monitor
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expected bool
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name string
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}{
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{Monitor{}, true, "Empty"},
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{Monitor{lastCheck: timeNow, CheckInterval: SecondsOrDuration{time.Second * 15}}, false, "Just checked"},
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{Monitor{lastCheck: timeTenSecAgo, CheckInterval: SecondsOrDuration{time.Second * 15}}, false, "-10s"},
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{Monitor{lastCheck: timeTwentySecAgo, CheckInterval: SecondsOrDuration{time.Second * 15}}, true, "-20s"},
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}
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for _, c := range cases {
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actual := c.monitor.ShouldCheck()
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if actual != c.expected {
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t.Errorf("ShouldCheck(%v), expected=%t actual=%t", c.name, c.expected, actual)
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}
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}
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}
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// TestMonitorIsUp tests the Monitor.IsUp()
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func TestMonitorIsUp(t *testing.T) {
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cases := []struct {
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monitor Monitor
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expected bool
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name string
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}{
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{Monitor{}, true, "Empty"},
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{Monitor{alertCount: 1}, false, "Has alert"},
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{Monitor{alertCount: -1}, false, "Negative alerts"},
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{Monitor{alertCount: 0}, true, "No alerts"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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actual := c.monitor.IsUp()
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if actual != c.expected {
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t.Errorf("IsUp(%v), expected=%t actual=%t", c.name, c.expected, actual)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorGetAlertNames tests that proper alert names are returned
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func TestMonitorGetAlertNames(t *testing.T) {
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cases := []struct {
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monitor Monitor
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up bool
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expected []string
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name string
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}{
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{Monitor{}, true, nil, "Empty up"},
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{Monitor{}, false, nil, "Empty down"},
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{Monitor{AlertUp: []string{"alert"}}, true, []string{"alert"}, "Return up"},
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{Monitor{AlertDown: []string{"alert"}}, false, []string{"alert"}, "Return down"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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actual := c.monitor.GetAlertNames(c.up)
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if !EqualSliceString(actual, c.expected) {
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t.Errorf("GetAlertNames(%v), expected=%v actual=%v", c.name, c.expected, actual)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorSuccess tests the Monitor.success()
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func TestMonitorSuccess(t *testing.T) {
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cases := []struct {
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monitor Monitor
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expectNotice bool
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name string
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}{
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{Monitor{}, false, "Empty"},
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{Monitor{alertCount: 0}, false, "No alerts"},
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{Monitor{alertCount: 1}, true, "Has alert"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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notice := c.monitor.success()
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hasNotice := (notice != nil)
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if hasNotice != c.expectNotice {
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t.Errorf("success(%v), expected=%t actual=%t", c.name, c.expectNotice, hasNotice)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorFailureAlertAfter tests that alerts will not trigger until
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// hitting the threshold provided by AlertAfter
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func TestMonitorFailureAlertAfter(t *testing.T) {
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cases := []struct {
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monitor Monitor
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expectNotice bool
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name string
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}{
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{Monitor{AlertAfter: 1}, true, "Empty"}, // Defaults to true because and AlertEvery default to 0
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{Monitor{failureCount: 0, AlertAfter: 1, AlertEvery: 1}, true, "Alert after 1: first failure"},
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{Monitor{failureCount: 1, AlertAfter: 1, AlertEvery: 1}, true, "Alert after 1: second failure"},
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{Monitor{failureCount: 0, AlertAfter: 20, AlertEvery: 1}, false, "Alert after 20: first failure"},
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{Monitor{failureCount: 19, AlertAfter: 20, AlertEvery: 1}, true, "Alert after 20: 20th failure"},
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{Monitor{failureCount: 20, AlertAfter: 20, AlertEvery: 1}, true, "Alert after 20: 21st failure"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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notice := c.monitor.failure()
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hasNotice := (notice != nil)
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if hasNotice != c.expectNotice {
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t.Errorf("failure(%v), expected=%t actual=%t", c.name, c.expectNotice, hasNotice)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorFailureAlertEvery tests that alerts will trigger
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// on the expected intervals
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func TestMonitorFailureAlertEvery(t *testing.T) {
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cases := []struct {
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monitor Monitor
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expectNotice bool
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name string
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}{
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/*
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TODO: Actually found a bug in original implementation. There is an inconsistency in the way AlertAfter is treated.
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For "First alert only" (ie. AlertEvery=0), it is the number of failures to ignore before alerting, so AlertAfter=1
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will ignore the first failure and alert on the second failure
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For other intervals (ie. AlertEvery=1), it is essentially indexed on one. Essentially making AlertAfter=1 trigger
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on the first failure.
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For usabilty, this should be consistent. Consistent with what though? minitor-py? Or itself? Dun dun duuuunnnnn!
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*/
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{Monitor{AlertAfter: 1}, true, "Empty"}, // Defaults to true because AlertAfter and AlertEvery default to 0
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// Alert first time only, after 1
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{Monitor{failureCount: 0, AlertAfter: 1, AlertEvery: 0}, true, "Alert first time only after 1: first failure"},
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{Monitor{failureCount: 1, AlertAfter: 1, AlertEvery: 0}, false, "Alert first time only after 1: second failure"},
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{Monitor{failureCount: 2, AlertAfter: 1, AlertEvery: 0}, false, "Alert first time only after 1: third failure"},
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// Alert every time, after 1
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{Monitor{failureCount: 0, AlertAfter: 1, AlertEvery: 1}, true, "Alert every time after 1: first failure"},
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{Monitor{failureCount: 1, AlertAfter: 1, AlertEvery: 1}, true, "Alert every time after 1: second failure"},
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{Monitor{failureCount: 1, AlertAfter: 1, AlertEvery: 1}, true, "Alert every time after 1: third failure"},
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// Alert every other time, after 1
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{Monitor{failureCount: 0, AlertAfter: 1, AlertEvery: 2}, true, "Alert every other time after 1: first failure"},
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{Monitor{failureCount: 1, AlertAfter: 1, AlertEvery: 2}, false, "Alert every other time after 1: second failure"},
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{Monitor{failureCount: 2, AlertAfter: 1, AlertEvery: 2}, true, "Alert every other time after 1: third failure"},
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{Monitor{failureCount: 3, AlertAfter: 1, AlertEvery: 2}, false, "Alert every other time after 1: fourth failure"},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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notice := c.monitor.failure()
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hasNotice := (notice != nil)
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if hasNotice != c.expectNotice {
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t.Errorf("failure(%v), expected=%t actual=%t", c.name, c.expectNotice, hasNotice)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorFailureExponential tests that alerts will trigger
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// with an exponential backoff after repeated failures
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func TestMonitorFailureExponential(t *testing.T) {
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cases := []struct {
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expectNotice bool
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name string
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}{
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{true, "Alert exponential after 1: first failure"},
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{true, "Alert exponential after 1: second failure"},
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{false, "Alert exponential after 1: third failure"},
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{true, "Alert exponential after 1: fourth failure"},
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{false, "Alert exponential after 1: fifth failure"},
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{false, "Alert exponential after 1: sixth failure"},
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{false, "Alert exponential after 1: seventh failure"},
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{true, "Alert exponential after 1: eighth failure"},
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}
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// Unlike previous tests, this one requires a static Monitor with repeated
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// calls to the failure method
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monitor := Monitor{failureCount: 0, AlertAfter: 1, AlertEvery: -1}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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notice := monitor.failure()
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hasNotice := (notice != nil)
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if hasNotice != c.expectNotice {
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t.Errorf("failure(%v), expected=%t actual=%t", c.name, c.expectNotice, hasNotice)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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// TestMonitorCheck tests successful and failed commands and shell commands
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func TestMonitorCheck(t *testing.T) {
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type expected struct {
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isSuccess bool
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hasNotice bool
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lastOutput string
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}
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cases := []struct {
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monitor Monitor
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expect expected
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name string
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}{
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{
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Monitor{Command: CommandOrShell{Command: []string{"echo", "success"}}},
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expected{isSuccess: true, hasNotice: false, lastOutput: "success\n"},
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"Test successful command",
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},
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{
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Monitor{Command: CommandOrShell{ShellCommand: "echo success"}},
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expected{isSuccess: true, hasNotice: false, lastOutput: "success\n"},
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"Test successful command shell",
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},
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{
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Monitor{Command: CommandOrShell{Command: []string{"total", "failure"}}},
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expected{isSuccess: false, hasNotice: true, lastOutput: ""},
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"Test failed command",
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},
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{
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Monitor{Command: CommandOrShell{ShellCommand: "false"}},
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expected{isSuccess: false, hasNotice: true, lastOutput: ""},
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"Test failed command shell",
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},
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}
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for _, c := range cases {
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log.Printf("Testing case %s", c.name)
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isSuccess, notice := c.monitor.Check()
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if isSuccess != c.expect.isSuccess {
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t.Errorf("Check(%v) (success), expected=%t actual=%t", c.name, c.expect.isSuccess, isSuccess)
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log.Printf("Case failed: %s", c.name)
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}
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hasNotice := (notice != nil)
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if hasNotice != c.expect.hasNotice {
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t.Errorf("Check(%v) (notice), expected=%t actual=%t", c.name, c.expect.hasNotice, hasNotice)
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log.Printf("Case failed: %s", c.name)
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}
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lastOutput := c.monitor.lastOutput
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if lastOutput != c.expect.lastOutput {
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t.Errorf("Check(%v) (output), expected=%v actual=%v", c.name, c.expect.lastOutput, lastOutput)
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log.Printf("Case failed: %s", c.name)
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}
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log.Println("-----")
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}
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}
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