refactor: make internals easier to test and add unit tests (#2)
This PR refactors most of the internals to make them easier to test (and also because the names didn't make sense). It adds unit tests for all internal components. Reviewed-on: #2 Co-authored-by: Emmanuel BENOÎT <tseeker@nocternity.net> Co-committed-by: Emmanuel BENOÎT <tseeker@nocternity.net>
This commit is contained in:
parent
dcd732cc34
commit
78af496fe9
20 changed files with 939 additions and 369 deletions
25
pkg/perfdata/internals.go
Normal file
25
pkg/perfdata/internals.go
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@ -0,0 +1,25 @@
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package perfdata // import nocternity.net/gomonop/pkg/perfdata
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import (
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"regexp"
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)
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// Flags indicating which elements of performance data have been set.
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type perfDataBits int
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const (
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PDatWarn perfDataBits = 1 << iota
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PDatCrit
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PDatMin
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PDatMax
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)
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// Regexps used to check values and ranges in performance data records.
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var (
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// Common value check regexp.
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vcRegexp = `^-?(0(\.\d*)?|[1-9]\d*(\.\d*)?|\.\d+)$`
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// Compiled value check regexp.
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valueCheck = regexp.MustCompile(vcRegexp)
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// Compiled range min value check.
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rangeMinCheck = regexp.MustCompile(vcRegexp + `|^~$`)
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)
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50
pkg/perfdata/internals_test.go
Normal file
50
pkg/perfdata/internals_test.go
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@ -0,0 +1,50 @@
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package perfdata // import nocternity.net/gomonop/pkg/perfdata
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestValueCheckValid(t *testing.T) {
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validValues := []string{
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"0", "0.", "0.952", "1", "123", "123.", "123.45", ".1",
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"-0", "-0.", "-0.952", "-1", "-123", "-123.", "-123.45", "-.1",
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}
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for _, value := range validValues {
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assert.True(t, valueCheck.MatchString(value), "'%s' is a valid value string", value)
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}
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}
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func TestValueCheckInvalid(t *testing.T) {
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invalidValues := []string{".", "-.", "a", " ", "", "~"}
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for _, value := range invalidValues {
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assert.False(t, valueCheck.MatchString(value), "'%s' is an invalid value string", value)
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}
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}
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func TestMinCheckValid(t *testing.T) {
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validValues := []string{
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"0", "0.", "0.952", "1", "123", "123.", "123.45", ".1",
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"-0", "-0.", "-0.952", "-1", "-123", "-123.", "-123.45", "-.1",
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"~",
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}
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for _, value := range validValues {
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if !rangeMinCheck.MatchString(value) {
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t.Errorf("'%s' is a valid value string", value)
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}
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}
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}
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func TestMinCheckInvalid(t *testing.T) {
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invalidValues := []string{".", "-.", "a", " ", ""}
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for _, value := range invalidValues {
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if rangeMinCheck.MatchString(value) {
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t.Errorf("'%s' is an invalid value string", value)
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}
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}
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}
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@ -3,111 +3,9 @@
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package perfdata // import nocternity.net/gomonop/pkg/perfdata
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import (
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"fmt"
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"regexp"
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"strings"
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)
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// Units of measurement, which may be used to qualify the performance data.
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type UnitOfMeasurement int
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const (
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UomNone UnitOfMeasurement = iota
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UomSeconds
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UomPercent
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UomBytes
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UomKilobytes
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UomMegabytes
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UomGigabytes
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UomTerabytes
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UomCounter
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)
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func (u UnitOfMeasurement) String() string {
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return [...]string{"", "s", "%", "B", "KB", "MB", "GB", "TB", "c"}[u]
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}
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// Flags indicating which elements of performance data have been set.
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type perfDataBits int
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const (
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PDatWarn perfDataBits = 1 << iota
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PDatCrit
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PDatMin
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PDatMax
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)
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// Regexps used to check values and ranges in performance data records.
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var (
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// Common value check regexp.
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vcRegexp = `^-?(0(\.\d*)?|[1-9]\d*(\.\d*)?|\.\d+)$`
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// Compiled value check regexp.
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valueCheck = regexp.MustCompile(vcRegexp)
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// Compiled range min value check.
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rangeMinCheck = regexp.MustCompile(vcRegexp + `|^~$`)
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)
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// Performance data range.
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type PDRange struct {
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start string
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end string
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inside bool
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}
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// Creates a performance data range from -inf to 0 and from the specified
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// value to +inf.
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func PDRMax(max string) *PDRange {
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if !valueCheck.MatchString(max) {
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panic("invalid performance data range maximum value")
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}
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pdRange := &PDRange{}
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pdRange.start = "0"
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pdRange.end = max
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return pdRange
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}
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// Creates a performance data range from -inf to the specified minimal value
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// and from the specified maximal value to +inf.
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func PDRMinMax(min, max string) *PDRange {
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if !valueCheck.MatchString(max) {
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panic("invalid performance data range maximum value")
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}
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if !rangeMinCheck.MatchString(min) {
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panic("invalid performance data range minimum value")
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}
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pdRange := &PDRange{}
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pdRange.start = min
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pdRange.end = max
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return pdRange
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}
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// Inverts the range.
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func (r *PDRange) Inside() *PDRange {
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r.inside = true
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return r
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}
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// Generates the range's string representation so it can be sent to the
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// monitoring system.
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func (r *PDRange) String() string {
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var start, inside string
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switch r.start {
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case "":
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start = "~"
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case "0":
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start = ""
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default:
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start = r.start
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}
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if r.inside {
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inside = "@"
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}
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return inside + start + ":" + r.end
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}
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// Performance data, including a label, units, a value, warning/critical
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// ranges and min/max boundaries.
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type PerfData struct {
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@ -115,7 +13,7 @@ type PerfData struct {
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units UnitOfMeasurement
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bits perfDataBits
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value string
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warn, crit PDRange
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warn, crit Range
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min, max string
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}
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@ -136,13 +34,13 @@ func New(label string, units UnitOfMeasurement, value string) *PerfData {
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}
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// Set the warning range for the performance data record.
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func (d *PerfData) SetWarn(r *PDRange) {
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func (d *PerfData) SetWarn(r *Range) {
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d.warn = *r
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d.bits |= PDatWarn
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}
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// Set the critical range for the performance data record.
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func (d *PerfData) SetCrit(r *PDRange) {
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func (d *PerfData) SetCrit(r *Range) {
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d.crit = *r
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d.bits |= PDatCrit
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}
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@ -171,26 +69,28 @@ func (d *PerfData) String() string {
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var strBuilder strings.Builder
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needsQuotes := strings.ContainsAny(d.Label, " '=\"")
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if needsQuotes {
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strBuilder.WriteString("'")
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strBuilder.WriteRune('\'')
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}
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strBuilder.WriteString(strings.ReplaceAll(d.Label, "'", "''"))
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if needsQuotes {
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strBuilder.WriteString("'")
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strBuilder.WriteRune('\'')
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}
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strBuilder.WriteString("=")
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strBuilder.WriteString(fmt.Sprintf("%s%s;", d.value, d.units.String()))
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strBuilder.WriteRune('=')
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strBuilder.WriteString(d.value)
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strBuilder.WriteString(d.units.String())
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strBuilder.WriteRune(';')
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if d.bits&PDatWarn != 0 {
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strBuilder.WriteString(d.warn.String())
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}
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strBuilder.WriteString(";")
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strBuilder.WriteRune(';')
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if d.bits&PDatCrit != 0 {
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strBuilder.WriteString(d.crit.String())
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}
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strBuilder.WriteString(";")
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strBuilder.WriteRune(';')
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if d.bits&PDatMin != 0 {
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strBuilder.WriteString(d.min)
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}
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strBuilder.WriteString(";")
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strBuilder.WriteRune(';')
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if d.bits&PDatMax != 0 {
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strBuilder.WriteString(d.max)
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}
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@ -1,108 +1,261 @@
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package perfdata // import nocternity.net/gomonop/pkg/perfdata
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package perfdata
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func assert(t *testing.T, check bool, msg string) {
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if !check {
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t.Errorf(msg)
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}
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func TestNewNoValue(t *testing.T) {
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const label = "label"
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const units = UomNone
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out := New(label, units, "")
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assert.Equal(t, label, out.Label)
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assert.Equal(t, units, out.units)
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assert.Equal(t, perfDataBits(0), out.bits)
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assert.Equal(t, "U", out.value)
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// min, max, warn and crit are meaningless here
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}
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func assertPanic(t *testing.T, f func(), msg string) {
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defer func() {
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if r := recover(); r == nil {
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t.Errorf(msg)
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}
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}()
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f()
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func TestNewValidValue(t *testing.T) {
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const label = "label"
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const units = UomNone
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const value = "1234"
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out := New(label, units, value)
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assert.Equal(t, label, out.Label)
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assert.Equal(t, units, out.units)
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assert.Equal(t, perfDataBits(0), out.bits)
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assert.Equal(t, value, out.value)
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// min, max, warn and crit are meaningless here
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}
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func TestValueCheckValid(t *testing.T) {
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validValues := []string{
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"0", "0.", "0.952", "1", "123", "123.", "123.45", ".1",
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"-0", "-0.", "-0.952", "-1", "-123", "-123.", "-123.45", "-.1",
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}
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for _, value := range validValues {
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if !valueCheck.MatchString(value) {
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t.Errorf("'%s' is a valid value string", value)
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}
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}
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func TestNewInvalidValue(t *testing.T) {
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assert.Panics(t, func() { New("label", UomNone, "nope") })
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}
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func TestValueCheckInvalid(t *testing.T) {
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invalidValues := []string{".", "-.", "a", " ", ""}
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func TestSetWarn(t *testing.T) {
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rangeValue := Range{start: "A", end: "B"}
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rangeStr := rangeValue.String()
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for _, value := range invalidValues {
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if valueCheck.MatchString(value) {
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t.Errorf("'%s' is an invalid value string", value)
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}
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}
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data := PerfData{}
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data.SetWarn(&rangeValue)
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assert.True(t, data.bits&PDatWarn != 0)
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assert.Equal(t, rangeStr, data.warn.String())
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}
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func TestPdrMaxInvalid(t *testing.T) {
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assertPanic(
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t, func() { PDRMax("") },
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"Created PerfDataRange with invalid max value",
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)
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func TestSetWarnTwice(t *testing.T) {
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range1Value := Range{start: "A", end: "B"}
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range2Value := Range{start: "C", end: "D"}
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range2Str := range2Value.String()
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require.NotEqual(t, range2Str, range1Value.String())
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data := PerfData{}
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data.SetWarn(&range1Value)
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data.SetWarn(&range2Value)
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assert.True(t, data.bits&PDatWarn != 0)
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assert.Equal(t, range2Str, data.warn.String())
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}
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func TestPdrMax(t *testing.T) {
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value := "123"
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pdr := PDRMax(value)
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assert(t, pdr.start == "0", "Min value should be '0'")
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assert(t, pdr.end == value, "Max value not copied to PerfDataRange")
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assert(t, !pdr.inside, "Inside flag should not be set")
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func TestSetCrit(t *testing.T) {
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rangeValue := Range{start: "A", end: "B"}
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rangeStr := rangeValue.String()
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data := PerfData{}
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data.SetCrit(&rangeValue)
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assert.True(t, data.bits&PDatCrit != 0)
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assert.Equal(t, rangeStr, data.crit.String())
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}
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func TestPdrMinMaxInvalid(t *testing.T) {
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assertPanic(
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t, func() { PDRMinMax("", "123") },
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"Created PerfDataRange with invalid min value",
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)
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assertPanic(
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t, func() { PDRMinMax("123", "") },
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"Created PerfDataRange with invalid max value",
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)
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func TestSetCritTwice(t *testing.T) {
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range1Value := Range{start: "A", end: "B"}
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range2Value := Range{start: "C", end: "D"}
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range2Str := range2Value.String()
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require.NotEqual(t, range2Str, range1Value.String())
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data := PerfData{}
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data.SetCrit(&range1Value)
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data.SetCrit(&range2Value)
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assert.True(t, data.bits&PDatCrit != 0)
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assert.Equal(t, range2Str, data.crit.String())
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}
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func TestPdrMinMax(t *testing.T) {
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min, max := "123", "456"
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pdr := PDRMinMax(min, max)
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assert(t, pdr.start == min, "Min value not copied to PerfDataRange")
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assert(t, pdr.end == max, "Max value not copied to PerfDataRange")
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assert(t, !pdr.inside, "Inside flag should not be set")
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func TestSetMin(t *testing.T) {
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const min = "100"
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data := PerfData{}
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data.SetMin(min)
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assert.True(t, data.bits&PDatMin != 0)
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assert.Equal(t, min, data.min)
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}
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func TestPdrInside(t *testing.T) {
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pdr := &PDRange{}
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pdr = pdr.Inside()
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assert(t, pdr.inside, "Inside flag should be set")
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pdr = pdr.Inside()
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assert(t, pdr.inside, "Inside flag should still be set")
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func TestSetMinInvalid(t *testing.T) {
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data := PerfData{}
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assert.Panics(t, func() { data.SetMin("nope") })
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}
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func TestPdrString(t *testing.T) {
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func TestSetMinTwice(t *testing.T) {
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data := PerfData{}
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data.SetMin("100")
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data.SetMin("200")
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assert.Equal(t, "200", data.min)
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assert.True(t, data.bits&PDatMin != 0)
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}
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func TestSetMax(t *testing.T) {
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const max = "100"
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data := PerfData{}
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data.SetMax(max)
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assert.True(t, data.bits&PDatMax != 0)
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assert.Equal(t, max, data.max)
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}
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func TestSetMaxInvalid(t *testing.T) {
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data := PerfData{}
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assert.Panics(t, func() { data.SetMax("nope") })
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}
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func TestSetMaxTwice(t *testing.T) {
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data := PerfData{}
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data.SetMax("100")
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data.SetMax("200")
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assert.Equal(t, "200", data.max)
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assert.True(t, data.bits&PDatMax != 0)
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}
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func TestString(t *testing.T) {
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type Test struct {
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pdr PDRange
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out string
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PerfData
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expected string
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}
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|
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range1 := Range{start: "A", end: "B"}
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range2 := Range{start: "C", end: "D"}
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tests := []Test{
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{pdr: PDRange{start: "Y", end: "X"}, out: "Y:X"},
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{pdr: PDRange{end: "X"}, out: "~:X"},
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{pdr: PDRange{start: "0", end: "X"}, out: ":X"},
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{pdr: PDRange{inside: true, start: "Y", end: "X"}, out: "@Y:X"},
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{
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PerfData{
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Label: "label",
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units: UomNone,
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bits: perfDataBits(0),
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value: "1234",
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},
|
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"label=1234;;;;",
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},
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{
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PerfData{
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Label: "la=bel",
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units: UomNone,
|
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bits: perfDataBits(0),
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value: "1234",
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},
|
||||
"'la=bel'=1234;;;;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "la bel",
|
||||
units: UomNone,
|
||||
bits: perfDataBits(0),
|
||||
value: "1234",
|
||||
},
|
||||
"'la bel'=1234;;;;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "la\"bel",
|
||||
units: UomNone,
|
||||
bits: perfDataBits(0),
|
||||
value: "1234",
|
||||
},
|
||||
"'la\"bel'=1234;;;;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "la'bel",
|
||||
units: UomNone,
|
||||
bits: perfDataBits(0),
|
||||
value: "1234",
|
||||
},
|
||||
"'la''bel'=1234;;;;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: UomNone,
|
||||
bits: PDatWarn,
|
||||
value: "1234",
|
||||
warn: range1,
|
||||
},
|
||||
"label=1234;" + range1.String() + ";;;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: UomNone,
|
||||
bits: PDatCrit,
|
||||
value: "1234",
|
||||
crit: range1,
|
||||
},
|
||||
"label=1234;;" + range1.String() + ";;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: UomNone,
|
||||
bits: PDatWarn | PDatCrit,
|
||||
value: "1234",
|
||||
warn: range1,
|
||||
crit: range2,
|
||||
},
|
||||
"label=1234;" + range1.String() + ";" + range2.String() + ";;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: UomNone,
|
||||
bits: PDatMin,
|
||||
value: "1234",
|
||||
min: "X",
|
||||
},
|
||||
"label=1234;;;X;",
|
||||
},
|
||||
{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: UomNone,
|
||||
bits: PDatMax,
|
||||
value: "1234",
|
||||
max: "Y",
|
||||
},
|
||||
"label=1234;;;;Y",
|
||||
},
|
||||
}
|
||||
|
||||
for _, units := range []UnitOfMeasurement{UomSeconds, UomPercent, UomBytes, UomKilobytes, UomMegabytes, UomGigabytes, UomTerabytes, UomCounter} {
|
||||
tests = append(tests, Test{
|
||||
PerfData{
|
||||
Label: "label",
|
||||
units: units,
|
||||
bits: perfDataBits(0),
|
||||
value: "1234",
|
||||
},
|
||||
fmt.Sprintf("label=1234%s;;;;", units),
|
||||
})
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
result := test.pdr.String()
|
||||
assert(
|
||||
t,
|
||||
result == test.out,
|
||||
fmt.Sprintf("Expected '%s', got '%s'", test.out, result),
|
||||
)
|
||||
assert.Equal(t, test.expected, test.PerfData.String())
|
||||
}
|
||||
}
|
||||
|
|
|
|||
62
pkg/perfdata/range.go
Normal file
62
pkg/perfdata/range.go
Normal file
|
|
@ -0,0 +1,62 @@
|
|||
package perfdata // import nocternity.net/gomonop/pkg/perfdata
|
||||
|
||||
// Performance data range.
|
||||
type Range struct {
|
||||
start string
|
||||
end string
|
||||
inside bool
|
||||
}
|
||||
|
||||
// Creates a performance data range from -inf to 0 and from the specified
|
||||
// value to +inf.
|
||||
func RangeMax(max string) *Range {
|
||||
if !valueCheck.MatchString(max) {
|
||||
panic("invalid performance data range maximum value")
|
||||
}
|
||||
pdRange := &Range{}
|
||||
pdRange.start = "0"
|
||||
pdRange.end = max
|
||||
return pdRange
|
||||
}
|
||||
|
||||
// Creates a performance data range from -inf to the specified minimal value
|
||||
// and from the specified maximal value to +inf.
|
||||
func RangeMinMax(min, max string) *Range {
|
||||
if !valueCheck.MatchString(max) {
|
||||
panic("invalid performance data range maximum value")
|
||||
}
|
||||
if !rangeMinCheck.MatchString(min) {
|
||||
panic("invalid performance data range minimum value")
|
||||
}
|
||||
pdRange := &Range{}
|
||||
pdRange.start = min
|
||||
pdRange.end = max
|
||||
return pdRange
|
||||
}
|
||||
|
||||
// Inverts the range.
|
||||
func (r *Range) Inside() *Range {
|
||||
r.inside = true
|
||||
return r
|
||||
}
|
||||
|
||||
// Generates the range's string representation so it can be sent to the
|
||||
// monitoring system.
|
||||
func (r *Range) String() string {
|
||||
var start, inside string
|
||||
|
||||
switch r.start {
|
||||
case "":
|
||||
start = "~"
|
||||
case "0":
|
||||
start = ""
|
||||
default:
|
||||
start = r.start
|
||||
}
|
||||
|
||||
if r.inside {
|
||||
inside = "@"
|
||||
}
|
||||
|
||||
return inside + start + ":" + r.end
|
||||
}
|
||||
67
pkg/perfdata/range_test.go
Normal file
67
pkg/perfdata/range_test.go
Normal file
|
|
@ -0,0 +1,67 @@
|
|||
package perfdata // import nocternity.net/gomonop/pkg/perfdata
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestRangeMaxInvalid(t *testing.T) {
|
||||
assert.Panics(
|
||||
t, func() { RangeMax("") },
|
||||
"Created PerfDataRange with invalid max value",
|
||||
)
|
||||
}
|
||||
|
||||
func TestRangeMax(t *testing.T) {
|
||||
value := "123"
|
||||
pdr := RangeMax(value)
|
||||
assert.Equal(t, "0", pdr.start, "Min value should be '0'")
|
||||
assert.Equal(t, value, pdr.end, "Max value not copied to PerfDataRange")
|
||||
assert.False(t, pdr.inside, "Inside flag should not be set")
|
||||
}
|
||||
|
||||
func TestRangeMinMaxInvalid(t *testing.T) {
|
||||
assert.Panics(
|
||||
t, func() { RangeMinMax("", "123") },
|
||||
"Created PerfDataRange with invalid min value",
|
||||
)
|
||||
assert.Panics(
|
||||
t, func() { RangeMinMax("123", "") },
|
||||
"Created PerfDataRange with invalid max value",
|
||||
)
|
||||
}
|
||||
|
||||
func TestRangeMinMax(t *testing.T) {
|
||||
min, max := "123", "456"
|
||||
pdr := RangeMinMax(min, max)
|
||||
assert.Equal(t, min, pdr.start, "Min value not copied to PerfDataRange")
|
||||
assert.Equal(t, max, pdr.end, "Max value not copied to PerfDataRange")
|
||||
assert.False(t, pdr.inside, "Inside flag should not be set")
|
||||
}
|
||||
|
||||
func TestRangeInside(t *testing.T) {
|
||||
pdr := &Range{}
|
||||
pdr = pdr.Inside()
|
||||
assert.True(t, pdr.inside, "Inside flag should be set")
|
||||
pdr = pdr.Inside()
|
||||
assert.True(t, pdr.inside, "Inside flag should still be set")
|
||||
}
|
||||
|
||||
func TestRangeString(t *testing.T) {
|
||||
type Test struct {
|
||||
pdr Range
|
||||
out string
|
||||
}
|
||||
tests := []Test{
|
||||
{pdr: Range{start: "Y", end: "X"}, out: "Y:X"},
|
||||
{pdr: Range{end: "X"}, out: "~:X"},
|
||||
{pdr: Range{start: "0", end: "X"}, out: ":X"},
|
||||
{pdr: Range{inside: true, start: "Y", end: "X"}, out: "@Y:X"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
result := test.pdr.String()
|
||||
assert.Equal(t, test.out, result, "Expected '%s', got '%s'", test.out, result)
|
||||
}
|
||||
}
|
||||
20
pkg/perfdata/units.go
Normal file
20
pkg/perfdata/units.go
Normal file
|
|
@ -0,0 +1,20 @@
|
|||
package perfdata // import nocternity.net/gomonop/pkg/perfdata
|
||||
|
||||
// Units of measurement, which may be used to qualify the performance data.
|
||||
type UnitOfMeasurement int
|
||||
|
||||
const (
|
||||
UomNone UnitOfMeasurement = iota
|
||||
UomSeconds
|
||||
UomPercent
|
||||
UomBytes
|
||||
UomKilobytes
|
||||
UomMegabytes
|
||||
UomGigabytes
|
||||
UomTerabytes
|
||||
UomCounter
|
||||
)
|
||||
|
||||
func (u UnitOfMeasurement) String() string {
|
||||
return [...]string{"", "s", "%", "B", "KB", "MB", "GB", "TB", "c"}[u]
|
||||
}
|
||||
26
pkg/perfdata/units_test.go
Normal file
26
pkg/perfdata/units_test.go
Normal file
|
|
@ -0,0 +1,26 @@
|
|||
package perfdata // import nocternity.net/gomonop/pkg/perfdata
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestUnitsToString(t *testing.T) {
|
||||
checks := map[UnitOfMeasurement]string{
|
||||
UomNone: "",
|
||||
UomSeconds: "s",
|
||||
UomPercent: "%",
|
||||
UomBytes: "B",
|
||||
UomKilobytes: "KB",
|
||||
UomMegabytes: "MB",
|
||||
UomGigabytes: "GB",
|
||||
UomTerabytes: "TB",
|
||||
UomCounter: "c",
|
||||
}
|
||||
|
||||
for u, s := range checks {
|
||||
result := u.String()
|
||||
assert.Equal(t, s, result, "Expected '%s', got '%s'", s, result)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,122 +1,20 @@
|
|||
// Package plugin implements a helper that can be used to implement a Nagios,
|
||||
// Centreon, Icinga... service monitoring plugin.
|
||||
package plugin // import nocternity.net/gomonop/pkg/perfdata
|
||||
package plugin // import nocternity.net/gomonop/pkg/plugin
|
||||
|
||||
import (
|
||||
"container/list"
|
||||
"fmt"
|
||||
"os"
|
||||
"strings"
|
||||
import "nocternity.net/gomonop/pkg/results"
|
||||
|
||||
"nocternity.net/gomonop/pkg/perfdata"
|
||||
)
|
||||
// Plugin represents the interface to a monitoring plugin.
|
||||
type Plugin interface {
|
||||
// Results accesses the results of the monitoring plugin.
|
||||
Results() *results.Results
|
||||
|
||||
// Status represents the return status of the monitoring plugin. The
|
||||
// corresponding integer value will be used as the program's exit code,
|
||||
// to be interpreted by the monitoring system.
|
||||
type Status int
|
||||
// CheckArguments ensures that the arguments that were passed to the plugin
|
||||
// actually make sense. Errors should be stored in the plugin's results.
|
||||
CheckArguments() bool
|
||||
|
||||
// Plugin exit statuses.
|
||||
const (
|
||||
OK Status = iota
|
||||
WARNING
|
||||
CRITICAL
|
||||
UNKNOWN
|
||||
)
|
||||
|
||||
// String representations of the plugin statuses.
|
||||
func (s Status) String() string {
|
||||
return [...]string{"OK", "WARNING", "ERROR", "UNKNOWN"}[s]
|
||||
// RunCheck actually runs whatever checks are implemented by the plugin and
|
||||
// updates the results accordingly.
|
||||
RunCheck()
|
||||
}
|
||||
|
||||
// Plugin represents the monitoring plugin's state, including its name,
|
||||
// return status and message, additional lines of text, and performance
|
||||
// data to be encoded in the output.
|
||||
type Plugin struct {
|
||||
name string
|
||||
status Status
|
||||
message string
|
||||
extraText *list.List
|
||||
perfData map[string]*perfdata.PerfData
|
||||
}
|
||||
|
||||
// New creates the plugin with `name` as its name and an unknown status.
|
||||
func New(name string) *Plugin {
|
||||
p := new(Plugin)
|
||||
p.name = name
|
||||
p.status = UNKNOWN
|
||||
p.message = "no status set"
|
||||
p.perfData = make(map[string]*perfdata.PerfData)
|
||||
return p
|
||||
}
|
||||
|
||||
// SetState sets the plugin's output code to `status` and its message to
|
||||
// the specified `message`.
|
||||
func (p *Plugin) SetState(status Status, message string) {
|
||||
p.status = status
|
||||
p.message = message
|
||||
}
|
||||
|
||||
// AddLine adds the specified string to the extra output text buffer.
|
||||
func (p *Plugin) AddLine(line string) {
|
||||
if p.extraText == nil {
|
||||
p.extraText = list.New()
|
||||
}
|
||||
p.extraText.PushBack(line)
|
||||
}
|
||||
|
||||
// AddLinef formats the input and adds it to the text buffer.
|
||||
func (p *Plugin) AddLinef(format string, data ...interface{}) {
|
||||
p.AddLine(fmt.Sprintf(format, data...))
|
||||
}
|
||||
|
||||
// AddLines add the specified `lines` to the output text.
|
||||
func (p *Plugin) AddLines(lines []string) {
|
||||
for _, line := range lines {
|
||||
p.AddLine(line)
|
||||
}
|
||||
}
|
||||
|
||||
// AddPerfData adds performance data described by the "pd" argument to the
|
||||
// output's performance data. If two performance data records are added for
|
||||
// the same label, the program panics.
|
||||
func (p *Plugin) AddPerfData(pd *perfdata.PerfData) {
|
||||
_, exists := p.perfData[pd.Label]
|
||||
if exists {
|
||||
panic("duplicate performance data " + pd.Label)
|
||||
}
|
||||
p.perfData[pd.Label] = pd
|
||||
}
|
||||
|
||||
// Done generates the plugin's text output from its name, status, text data
|
||||
// and performance data, before exiting with the code corresponding to the
|
||||
// status.
|
||||
func (p *Plugin) Done() {
|
||||
var strBuilder strings.Builder
|
||||
strBuilder.WriteString(p.name)
|
||||
strBuilder.WriteString(" ")
|
||||
strBuilder.WriteString(p.status.String())
|
||||
strBuilder.WriteString(": ")
|
||||
strBuilder.WriteString(p.message)
|
||||
if len(p.perfData) > 0 {
|
||||
strBuilder.WriteString(" | ")
|
||||
needSep := false
|
||||
for _, data := range p.perfData {
|
||||
if needSep {
|
||||
strBuilder.WriteString(", ")
|
||||
} else {
|
||||
needSep = true
|
||||
}
|
||||
strBuilder.WriteString(data.String())
|
||||
}
|
||||
}
|
||||
if p.extraText != nil {
|
||||
for em := p.extraText.Front(); em != nil; em = em.Next() {
|
||||
strBuilder.WriteString("\n")
|
||||
//nolint:forcetypeassert // we want to panic if this isn't a string
|
||||
strBuilder.WriteString(em.Value.(string))
|
||||
}
|
||||
}
|
||||
fmt.Println(strBuilder.String())
|
||||
os.Exit(int(p.status))
|
||||
}
|
||||
// Builder is a function that can be called in order to instantiate a plugin.
|
||||
type Builder func() Plugin
|
||||
|
|
|
|||
|
|
@ -1,9 +0,0 @@
|
|||
package program // import nocternity.net/gomonop/pkg/program
|
||||
|
||||
type Program interface {
|
||||
CheckArguments() bool
|
||||
RunCheck()
|
||||
Done()
|
||||
}
|
||||
|
||||
type Builder func() Program
|
||||
107
pkg/results/results.go
Normal file
107
pkg/results/results.go
Normal file
|
|
@ -0,0 +1,107 @@
|
|||
// Package results implements a helper that can be used to store the results of
|
||||
// a Nagios, Centreon, Icinga... service monitoring plugin, and convert them to
|
||||
// text which can be sent to the monitoring server.
|
||||
package results // import nocternity.net/gomonop/pkg/results
|
||||
|
||||
import (
|
||||
"container/list"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"nocternity.net/gomonop/pkg/perfdata"
|
||||
)
|
||||
|
||||
// Results represents the monitoring plugin's results, including its name,
|
||||
// return status and message, additional lines of text, and performance
|
||||
// data to be encoded in the output.
|
||||
type Results struct {
|
||||
name string
|
||||
status Status
|
||||
message string
|
||||
extraText *list.List
|
||||
perfData map[string]*perfdata.PerfData
|
||||
}
|
||||
|
||||
// New creates the plugin with `name` as its name and an unknown status.
|
||||
func New(name string) *Results {
|
||||
p := new(Results)
|
||||
p.name = name
|
||||
p.status = StatusUnknown
|
||||
p.message = "no status set"
|
||||
p.perfData = make(map[string]*perfdata.PerfData)
|
||||
return p
|
||||
}
|
||||
|
||||
// SetState sets the plugin's output code to `status` and its message to
|
||||
// the specified `message`.
|
||||
func (p *Results) SetState(status Status, message string) {
|
||||
p.status = status
|
||||
p.message = message
|
||||
}
|
||||
|
||||
// AddLine adds the specified string to the extra output text buffer.
|
||||
func (p *Results) AddLine(line string) {
|
||||
if p.extraText == nil {
|
||||
p.extraText = list.New()
|
||||
}
|
||||
p.extraText.PushBack(line)
|
||||
}
|
||||
|
||||
// AddLinef formats the input and adds it to the text buffer.
|
||||
func (p *Results) AddLinef(format string, data ...interface{}) {
|
||||
p.AddLine(fmt.Sprintf(format, data...))
|
||||
}
|
||||
|
||||
// AddLines add the specified `lines` to the output text.
|
||||
func (p *Results) AddLines(lines []string) {
|
||||
for _, line := range lines {
|
||||
p.AddLine(line)
|
||||
}
|
||||
}
|
||||
|
||||
// AddPerfData adds performance data described by the "pd" argument to the
|
||||
// output's performance data. If two performance data records are added for
|
||||
// the same label, the program panics.
|
||||
func (p *Results) AddPerfData(pd *perfdata.PerfData) {
|
||||
_, exists := p.perfData[pd.Label]
|
||||
if exists {
|
||||
panic("duplicate performance data " + pd.Label)
|
||||
}
|
||||
p.perfData[pd.Label] = pd
|
||||
}
|
||||
|
||||
// String generates the plugin's text output from its name, status, text data
|
||||
// and performance data.
|
||||
func (p *Results) String() string {
|
||||
var strBuilder strings.Builder
|
||||
strBuilder.WriteString(p.name)
|
||||
strBuilder.WriteString(" ")
|
||||
strBuilder.WriteString(p.status.String())
|
||||
strBuilder.WriteString(": ")
|
||||
strBuilder.WriteString(p.message)
|
||||
if len(p.perfData) > 0 {
|
||||
strBuilder.WriteString(" | ")
|
||||
needSep := false
|
||||
for _, data := range p.perfData {
|
||||
if needSep {
|
||||
strBuilder.WriteString(", ")
|
||||
} else {
|
||||
needSep = true
|
||||
}
|
||||
strBuilder.WriteString(data.String())
|
||||
}
|
||||
}
|
||||
if p.extraText != nil {
|
||||
for em := p.extraText.Front(); em != nil; em = em.Next() {
|
||||
strBuilder.WriteString("\n")
|
||||
//nolint:forcetypeassert // we want to panic if this isn't a string
|
||||
strBuilder.WriteString(em.Value.(string))
|
||||
}
|
||||
}
|
||||
return strBuilder.String()
|
||||
}
|
||||
|
||||
// ExitCode returns the plugin's exit code.
|
||||
func (p *Results) ExitCode() int {
|
||||
return int(p.status)
|
||||
}
|
||||
175
pkg/results/results_test.go
Normal file
175
pkg/results/results_test.go
Normal file
|
|
@ -0,0 +1,175 @@
|
|||
package results // import nocternity.net/gomonop/pkg/results
|
||||
|
||||
import (
|
||||
"container/list"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
"nocternity.net/gomonop/pkg/perfdata"
|
||||
)
|
||||
|
||||
func TestNew(t *testing.T) {
|
||||
p := New("test")
|
||||
|
||||
assert.Equal(t, p.name, "test")
|
||||
assert.Equal(t, p.status, StatusUnknown)
|
||||
assert.Equal(t, p.message, "no status set")
|
||||
assert.Nil(t, p.extraText)
|
||||
assert.NotNil(t, p.perfData)
|
||||
}
|
||||
|
||||
func TestSetState(t *testing.T) {
|
||||
p := Results{}
|
||||
|
||||
p.SetState(StatusWarning, "test")
|
||||
|
||||
assert.Equal(t, p.status, StatusWarning)
|
||||
assert.Equal(t, p.message, "test")
|
||||
}
|
||||
|
||||
func TestAddLineFirst(t *testing.T) {
|
||||
p := Results{}
|
||||
|
||||
p.AddLine("test")
|
||||
|
||||
assert.NotNil(t, p.extraText)
|
||||
assert.Equal(t, p.extraText.Len(), 1)
|
||||
assert.Equal(t, p.extraText.Front().Value, "test")
|
||||
}
|
||||
|
||||
func TestAddLineNext(t *testing.T) {
|
||||
p := Results{}
|
||||
p.extraText = list.New()
|
||||
|
||||
p.AddLine("test")
|
||||
|
||||
assert.Equal(t, p.extraText.Len(), 1)
|
||||
assert.Equal(t, p.extraText.Front().Value, "test")
|
||||
}
|
||||
|
||||
func TestAddLinef(t *testing.T) {
|
||||
p := Results{}
|
||||
|
||||
p.AddLinef("test %d", 123)
|
||||
|
||||
assert.Equal(t, p.extraText.Len(), 1)
|
||||
assert.Equal(t, p.extraText.Front().Value, "test 123")
|
||||
}
|
||||
|
||||
func TestAddLines(t *testing.T) {
|
||||
p := Results{}
|
||||
|
||||
p.AddLines([]string{"test", "test2"})
|
||||
|
||||
assert.Equal(t, p.extraText.Len(), 2)
|
||||
assert.Equal(t, p.extraText.Front().Value, "test")
|
||||
assert.Equal(t, p.extraText.Front().Next().Value, "test2")
|
||||
}
|
||||
|
||||
func TestAddPerfData(t *testing.T) {
|
||||
p := Results{}
|
||||
p.perfData = make(map[string]*perfdata.PerfData)
|
||||
|
||||
p.AddPerfData(&perfdata.PerfData{Label: "test"})
|
||||
|
||||
value, ok := p.perfData["test"]
|
||||
assert.True(t, ok)
|
||||
assert.Equal(t, value.Label, "test")
|
||||
}
|
||||
|
||||
func TestAddPerfDataDuplicate(t *testing.T) {
|
||||
p := Results{}
|
||||
p.perfData = make(map[string]*perfdata.PerfData)
|
||||
p.perfData["test"] = &perfdata.PerfData{Label: "test"}
|
||||
|
||||
assert.Panics(t, func() { p.AddPerfData(&perfdata.PerfData{Label: "test"}) })
|
||||
}
|
||||
|
||||
func TestString(t *testing.T) {
|
||||
type Test struct {
|
||||
Results
|
||||
expected string
|
||||
}
|
||||
|
||||
pdat := perfdata.PerfData{Label: "test"}
|
||||
tests := []Test{
|
||||
{
|
||||
Results{
|
||||
name: "test",
|
||||
status: StatusWarning,
|
||||
message: "test",
|
||||
perfData: make(map[string]*perfdata.PerfData),
|
||||
},
|
||||
"test WARNING: test",
|
||||
},
|
||||
{
|
||||
func() Results {
|
||||
p := Results{
|
||||
name: "test",
|
||||
status: StatusWarning,
|
||||
message: "test",
|
||||
perfData: make(map[string]*perfdata.PerfData),
|
||||
extraText: list.New(),
|
||||
}
|
||||
p.extraText.PushBack("test 1")
|
||||
p.extraText.PushBack("test 2")
|
||||
return p
|
||||
}(),
|
||||
"test WARNING: test\ntest 1\ntest 2",
|
||||
},
|
||||
{
|
||||
func() Results {
|
||||
p := Results{
|
||||
name: "test",
|
||||
status: StatusWarning,
|
||||
message: "test",
|
||||
perfData: make(map[string]*perfdata.PerfData),
|
||||
}
|
||||
p.perfData["test 1"] = &pdat
|
||||
p.perfData["test 2"] = &pdat
|
||||
return p
|
||||
}(),
|
||||
"test WARNING: test | " + pdat.String() + ", " +
|
||||
pdat.String(),
|
||||
},
|
||||
{
|
||||
func() Results {
|
||||
p := Results{
|
||||
name: "test",
|
||||
status: StatusWarning,
|
||||
message: "test",
|
||||
perfData: make(map[string]*perfdata.PerfData),
|
||||
extraText: list.New(),
|
||||
}
|
||||
p.perfData["test 1"] = &pdat
|
||||
p.perfData["test 2"] = &pdat
|
||||
p.extraText.PushBack("test 1")
|
||||
p.extraText.PushBack("test 2")
|
||||
return p
|
||||
}(),
|
||||
"test WARNING: test | " + pdat.String() + ", " +
|
||||
pdat.String() + "\ntest 1\ntest 2",
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
result := test.Results.String()
|
||||
assert.Equal(t, test.expected, result, "Expected '%s', got '%s'", test.expected, result)
|
||||
}
|
||||
}
|
||||
|
||||
func TestExitCode(t *testing.T) {
|
||||
p := Results{}
|
||||
|
||||
p.status = StatusOK
|
||||
assert.Equal(t, int(StatusOK), p.ExitCode())
|
||||
|
||||
p.status = StatusWarning
|
||||
assert.Equal(t, int(StatusWarning), p.ExitCode())
|
||||
|
||||
p.status = StatusCritical
|
||||
assert.Equal(t, int(StatusCritical), p.ExitCode())
|
||||
|
||||
p.status = StatusUnknown
|
||||
assert.Equal(t, int(StatusUnknown), p.ExitCode())
|
||||
}
|
||||
19
pkg/results/status.go
Normal file
19
pkg/results/status.go
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
package results // import nocternity.net/gomonop/pkg/results
|
||||
|
||||
// Status represents the return status of the monitoring plugin. The
|
||||
// corresponding integer value will be used as the program's exit code,
|
||||
// to be interpreted by the monitoring system.
|
||||
type Status int
|
||||
|
||||
// Plugin exit statuses.
|
||||
const (
|
||||
StatusOK Status = iota
|
||||
StatusWarning
|
||||
StatusCritical
|
||||
StatusUnknown
|
||||
)
|
||||
|
||||
// String representations of the plugin statuses.
|
||||
func (s Status) String() string {
|
||||
return [...]string{"OK", "WARNING", "ERROR", "UNKNOWN"}[s]
|
||||
}
|
||||
26
pkg/results/status_test.go
Normal file
26
pkg/results/status_test.go
Normal file
|
|
@ -0,0 +1,26 @@
|
|||
package results // import nocternity.net/gomonop/pkg/results
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestStatusDefaultOK(t *testing.T) {
|
||||
var s Status
|
||||
assert.Equal(t, StatusOK, s)
|
||||
}
|
||||
|
||||
func TestStatusToString(t *testing.T) {
|
||||
assert.Equal(t, "OK", StatusOK.String())
|
||||
assert.Equal(t, "WARNING", StatusWarning.String())
|
||||
assert.Equal(t, "ERROR", StatusCritical.String())
|
||||
assert.Equal(t, "UNKNOWN", StatusUnknown.String())
|
||||
}
|
||||
|
||||
func TestStatusToInt(t *testing.T) {
|
||||
assert.Equal(t, 0, int(StatusOK))
|
||||
assert.Equal(t, 1, int(StatusWarning))
|
||||
assert.Equal(t, 2, int(StatusCritical))
|
||||
assert.Equal(t, 3, int(StatusUnknown))
|
||||
}
|
||||
31
pkg/version/version_test.go
Normal file
31
pkg/version/version_test.go
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
package version // import nocternity.net/gomonop/pkg/version
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
func TestVersion(t *testing.T) {
|
||||
type Test struct {
|
||||
version, commit, status, target, expected string
|
||||
}
|
||||
|
||||
tests := []Test{
|
||||
{"", "COMMIT", "clean", "TARGET", "development version (COMMIT) TARGET"},
|
||||
{"VERSION", "COMMIT", "clean", "TARGET", "VERSION (COMMIT) TARGET"},
|
||||
{"", "COMMIT", "dirty", "TARGET", "development version (COMMIT*) TARGET"},
|
||||
{"VERSION", "COMMIT", "dirty", "TARGET", "VERSION (COMMIT*) TARGET"},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
version = test.version
|
||||
commit = test.commit
|
||||
status = test.status
|
||||
target = test.target
|
||||
|
||||
result := Version()
|
||||
|
||||
assert.Equal(t, test.expected, result, "Expected '%s', got '%s'", test.expected, result)
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue