prometheus/retrieval/format/discriminator_test.go
Bernerd Schaefer 76731c80c6 Use Content-Type data for telemetry versioning
ProcessorForRequestHeader now looks first for a header like
`Content-Type: application/json; schema="prometheus/telemetry";
version="0.0.1"` before falling back to checking
`X-Prometheus-API-Version`.
2013-04-25 16:05:37 +02:00

93 lines
2.4 KiB
Go

// Copyright 2013 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package format
import (
"fmt"
"github.com/prometheus/prometheus/utility/test"
"net/http"
"testing"
)
func testDiscriminatorHttpHeader(t test.Tester) {
var scenarios = []struct {
input map[string]string
output Processor
err error
}{
{
output: nil,
err: fmt.Errorf("Received illegal and nil header."),
},
{
input: map[string]string{"Content-Type": "application/json", "X-Prometheus-API-Version": "0.0.0"},
output: nil,
err: fmt.Errorf("Unrecognized API version 0.0.0"),
},
{
input: map[string]string{"Content-Type": "application/json", "X-Prometheus-API-Version": "0.0.1"},
output: Processor001,
err: nil,
},
{
input: map[string]string{"Content-Type": `application/json; schema="prometheus/telemetry"; version=0.0.0`},
output: nil,
err: fmt.Errorf("Unrecognized API version 0.0.0"),
},
{
input: map[string]string{"Content-Type": `application/json; schema="prometheus/telemetry"; version=0.0.1`},
output: Processor001,
err: nil,
},
}
for i, scenario := range scenarios {
var header http.Header
if len(scenario.input) > 0 {
header = http.Header{}
}
for key, value := range scenario.input {
header.Add(key, value)
}
actual, err := DefaultRegistry.ProcessorForRequestHeader(header)
if scenario.err != err {
if scenario.err != nil && err != nil {
if scenario.err.Error() != err.Error() {
t.Errorf("%d. expected %s, got %s", i, scenario.err, err)
}
} else if scenario.err != nil || err != nil {
t.Errorf("%d. expected %s, got %s", i, scenario.err, err)
}
}
if scenario.output != actual {
t.Errorf("%d. expected %s, got %s", i, scenario.output, actual)
}
}
}
func TestDiscriminatorHttpHeader(t *testing.T) {
testDiscriminatorHttpHeader(t)
}
func BenchmarkDiscriminatorHttpHeader(b *testing.B) {
for i := 0; i < b.N; i++ {
testDiscriminatorHttpHeader(b)
}
}