71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
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package parsers_test
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import (
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"reflect"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/parsers"
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_ "github.com/influxdata/telegraf/plugins/parsers/all"
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)
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func TestRegistry_BackwardCompatibility(t *testing.T) {
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cfg := &parsers.Config{
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MetricName: "parser_compatibility_test",
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CSVHeaderRowCount: 42,
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}
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// Some parsers need certain settings to not error. Furthermore, we
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// might need to clear some (pointer) fields for comparison...
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override := map[string]struct {
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param map[string]interface{}
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mask []string
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}{
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"csv": {
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param: map[string]interface{}{
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"HeaderRowCount": cfg.CSVHeaderRowCount,
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},
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mask: []string{"TimeFunc"},
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},
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}
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for name, creator := range parsers.Parsers {
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t.Logf("testing %q...", name)
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cfg.DataFormat = name
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// Create parser the new way
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expected := creator(cfg.MetricName)
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if settings, found := override[name]; found {
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s := reflect.Indirect(reflect.ValueOf(expected))
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for key, value := range settings.param {
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v := reflect.ValueOf(value)
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s.FieldByName(key).Set(v)
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}
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}
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if p, ok := expected.(telegraf.Initializer); ok {
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require.NoError(t, p.Init())
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}
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// Create parser the old way
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actual, err := parsers.NewParser(cfg)
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require.NoError(t, err)
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// Compare with mask
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if settings, found := override[name]; found {
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a := reflect.Indirect(reflect.ValueOf(actual))
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e := reflect.Indirect(reflect.ValueOf(expected))
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for _, key := range settings.mask {
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af := a.FieldByName(key)
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ef := e.FieldByName(key)
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v := reflect.Zero(ef.Type())
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af.Set(v)
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ef.Set(v)
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}
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}
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require.EqualValuesf(t, expected, actual, "format %q", name)
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}
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}
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