126 lines
2.7 KiB
Go
126 lines
2.7 KiB
Go
package collector
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import (
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"reflect"
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"testing"
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perflibCollector "github.com/leoluk/perflib_exporter/collector"
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"github.com/leoluk/perflib_exporter/perflib"
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)
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type simple struct {
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ValA float64 `perflib:"Something"`
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ValB float64 `perflib:"Something Else"`
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}
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func TestUnmarshalPerflib(t *testing.T) {
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cases := []struct {
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name string
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obj *perflib.PerfObject
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expectedOutput []simple
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expectError bool
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}{
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{
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name: "nil check",
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obj: nil,
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expectedOutput: []simple{},
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expectError: true,
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},
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{
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name: "Simple",
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obj: &perflib.PerfObject{
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Instances: []*perflib.PerfInstance{
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{
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Counters: []*perflib.PerfCounter{
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{
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Def: &perflib.PerfCounterDef{
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Name: "Something",
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CounterType: perflibCollector.PERF_COUNTER_COUNTER,
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},
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Value: 123,
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},
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},
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},
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},
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},
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expectedOutput: []simple{{ValA: 123}},
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expectError: false,
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},
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{
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name: "Multiple properties",
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obj: &perflib.PerfObject{
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Instances: []*perflib.PerfInstance{
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{
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Counters: []*perflib.PerfCounter{
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{
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Def: &perflib.PerfCounterDef{
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Name: "Something",
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CounterType: perflibCollector.PERF_COUNTER_COUNTER,
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},
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Value: 123,
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},
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{
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Def: &perflib.PerfCounterDef{
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Name: "Something Else",
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CounterType: perflibCollector.PERF_COUNTER_COUNTER,
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},
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Value: 256,
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},
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},
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},
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},
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},
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expectedOutput: []simple{{ValA: 123, ValB: 256}},
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expectError: false,
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},
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{
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name: "Multiple instances",
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obj: &perflib.PerfObject{
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Instances: []*perflib.PerfInstance{
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{
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Counters: []*perflib.PerfCounter{
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{
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Def: &perflib.PerfCounterDef{
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Name: "Something",
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CounterType: perflibCollector.PERF_COUNTER_COUNTER,
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},
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Value: 321,
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},
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},
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},
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{
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Counters: []*perflib.PerfCounter{
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{
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Def: &perflib.PerfCounterDef{
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Name: "Something",
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CounterType: perflibCollector.PERF_COUNTER_COUNTER,
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},
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Value: 231,
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},
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},
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},
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},
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},
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expectedOutput: []simple{{ValA: 321}, {ValA: 231}},
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expectError: false,
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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output := make([]simple, 0)
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err := unmarshalObject(c.obj, &output)
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if err != nil && !c.expectError {
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t.Errorf("Did not expect error, got %q", err)
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}
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if err == nil && c.expectError {
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t.Errorf("Expected an error, but got ok")
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}
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if err == nil && !reflect.DeepEqual(output, c.expectedOutput) {
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t.Errorf("Output mismatch, expected %+v, got %+v", c.expectedOutput, output)
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}
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})
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}
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}
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