func TestProtoDecoder(t *testing.T) {
var testTime = model.Now()
scenarios := []struct {
in string
expected model.Vector
}{
{
in: "",
},
{
in: "\x8f\x01\n\rrequest_count\x12\x12Number of requests\x18\x00\"0\n#\n\x0fsome_label_name\x12\x10some_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00E\xc0\"6\n)\n\x12another_label_name\x12\x13another_label_value\x1a\t\t\x00\x00\x00\x00\x00\x00U@",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
},
Value: -42,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"another_label_name": "another_label_value",
},
Value: 84,
Timestamp: testTime,
},
},
},
{
in: "\xb9\x01\n\rrequest_count\x12\x12Number of requests\x18\x02\"O\n#\n\x0fsome_label_name\x12\x10some_label_value\"(\x1a\x12\t\xaeG\xe1z\x14\xae\xef?\x11\x00\x00\x00\x00\x00\x00E\xc0\x1a\x12\t+\x87\x16\xd9\xce\xf7\xef?\x11\x00\x00\x00\x00\x00\x00U\xc0\"A\n)\n\x12another_label_name\x12\x13another_label_value\"\x14\x1a\x12\t\x00\x00\x00\x00\x00\x00\xe0?\x11\x00\x00\x00\x00\x00\x00$@",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_count",
"some_label_name": "some_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_sum",
"some_label_name": "some_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
"quantile": "0.99",
},
Value: -42,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"some_label_name": "some_label_value",
"quantile": "0.999",
},
Value: -84,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_count",
"another_label_name": "another_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count_sum",
"another_label_name": "another_label_value",
},
Value: 0,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
"another_label_name": "another_label_value",
"quantile": "0.5",
},
Value: 10,
Timestamp: testTime,
},
},
},
{
in: "\x8d\x01\n\x1drequest_duration_microseconds\x12\x15The response latency.\x18\x04\"S:Q\b\x85\x15\x11\xcd\xcc\xccL\x8f\xcb:A\x1a\v\b{\x11\x00\x00\x00\x00\x00\x00Y@\x1a\f\b\x9c\x03\x11\x00\x00\x00\x00\x00\x00^@\x1a\f\b\xd0\x04\x11\x00\x00\x00\x00\x00\x00b@\x1a\f\b\xf4\v\x11\x9a\x99\x99\x99\x99\x99e@\x1a\f\b\x85\x15\x11\x00\x00\x00\x00\x00\x00\xf0\u007f",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "100",
},
Value: 123,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "120",
},
Value: 412,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "144",
},
Value: 592,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "172.8",
},
Value: 1524,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_bucket",
"le": "+Inf",
},
Value: 2693,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_sum",
},
Value: 1756047.3,
Timestamp: testTime,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_duration_microseconds_count",
},
Value: 2693,
Timestamp: testTime,
},
},
},
{
// The metric type is unset in this protobuf, which needs to be handled
// correctly by the decoder.
in: "\x1c\n\rrequest_count\"\v\x1a\t\t\x00\x00\x00\x00\x00\x00\xf0?",
expected: model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "request_count",
},
Value: 1,
Timestamp: testTime,
},
},
},
}
for i, scenario := range scenarios {
dec := &SampleDecoder{
Dec: &protoDecoder{r: strings.NewReader(scenario.in)},
Opts: &DecodeOptions{
Timestamp: testTime,
},
}
var all model.Vector
for {
var smpls model.Vector
err := dec.Decode(&smpls)
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
all = append(all, smpls...)
}
sort.Sort(all)
sort.Sort(scenario.expected)
if !reflect.DeepEqual(all, scenario.expected) {
t.Fatalf("%d. output does not match, want: %#v, got %#v", i, scenario.expected, all)
}
}
}
func TestTextDecoder(t *testing.T) {
var (
ts = model.Now()
in = `
# Only a quite simple scenario with two metric families.
# More complicated tests of the parser itself can be found in the text package.
# TYPE mf2 counter
mf2 3
mf1{label="value1"} -3.14 123456
mf1{label="value2"} 42
mf2 4
`
out = model.Vector{
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf1",
"label": "value1",
},
Value: -3.14,
Timestamp: 123456,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf1",
"label": "value2",
},
Value: 42,
Timestamp: ts,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf2",
},
Value: 3,
Timestamp: ts,
},
&model.Sample{
Metric: model.Metric{
model.MetricNameLabel: "mf2",
},
Value: 4,
Timestamp: ts,
},
}
)
dec := &SampleDecoder{
Dec: &textDecoder{r: strings.NewReader(in)},
Opts: &DecodeOptions{
Timestamp: ts,
},
}
var all model.Vector
for {
var smpls model.Vector
err := dec.Decode(&smpls)
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
all = append(all, smpls...)
}
sort.Sort(all)
sort.Sort(out)
if !reflect.DeepEqual(all, out) {
t.Fatalf("output does not match")
}
}