func GetMetricForFingerprintTests(p metric.Persistence, t test.Tester) {
testAppendSamples(p, &clientmodel.Sample{
Value: 0,
Timestamp: 0,
Metric: clientmodel.Metric{
"request_type": "your_mom",
},
}, t)
testAppendSamples(p, &clientmodel.Sample{
Value: 0,
Timestamp: 0,
Metric: clientmodel.Metric{
"request_type": "your_dad",
"one-off": "value",
},
}, t)
result, err := p.GetFingerprintsForLabelMatchers(metric.LabelMatchers{{
Type: metric.Equal,
Name: "request_type",
Value: "your_mom",
}})
if err != nil {
t.Error(err)
}
if len(result) != 1 {
t.Errorf("Expected one element.")
}
m, err := p.GetMetricForFingerprint(result[0])
if err != nil {
t.Error(err)
}
if m == nil {
t.Fatal("Did not expect nil.")
}
if len(m) != 1 {
t.Errorf("Expected one-dimensional metric.")
}
if m["request_type"] != "your_mom" {
t.Errorf("Expected metric to match.")
}
result, err = p.GetFingerprintsForLabelMatchers(metric.LabelMatchers{{
Type: metric.Equal,
Name: "request_type",
Value: "your_dad",
}})
if err != nil {
t.Error(err)
}
if len(result) != 1 {
t.Errorf("Expected one element.")
}
m, err = p.GetMetricForFingerprint(result[0])
if m == nil {
t.Fatal("Did not expect nil.")
}
if err != nil {
t.Error(err)
}
if len(m) != 2 {
t.Errorf("Expected two-dimensional metric.")
}
if m["request_type"] != "your_dad" {
t.Errorf("Expected metric to match.")
}
if m["one-off"] != "value" {
t.Errorf("Expected metric to match.")
}
// Verify that mutating a returned metric does not result in the mutated
// metric to be returned at the next GetMetricForFingerprint() call.
m["one-off"] = "new value"
m, err = p.GetMetricForFingerprint(result[0])
if m == nil {
t.Fatal("Did not expect nil.")
}
if err != nil {
t.Error(err)
}
if len(m) != 2 {
t.Errorf("Expected two-dimensional metric.")
}
if m["request_type"] != "your_dad" {
t.Errorf("Expected metric to match.")
}
if m["one-off"] != "value" {
t.Errorf("Expected metric to match.")
}
}
