127 lines
3.6 KiB
Go
127 lines
3.6 KiB
Go
// Copyright 2013 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package extraction
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import (
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"errors"
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"net/http"
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"testing"
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)
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func testDiscriminatorHTTPHeader(t testing.TB) {
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var scenarios = []struct {
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input map[string]string
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output Processor
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err error
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}{
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{
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output: nil,
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err: errors.New("received illegal and nil header"),
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},
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{
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input: map[string]string{"Content-Type": "application/json", "X-Prometheus-API-Version": "0.0.0"},
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output: nil,
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err: errors.New("unrecognized API version 0.0.0"),
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},
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{
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input: map[string]string{"Content-Type": "application/json", "X-Prometheus-API-Version": "0.0.1"},
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output: Processor001,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `application/json; schema="prometheus/telemetry"; version=0.0.0`},
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output: nil,
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err: errors.New("unrecognized API version 0.0.0"),
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},
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{
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input: map[string]string{"Content-Type": `application/json; schema="prometheus/telemetry"; version=0.0.1`},
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output: Processor001,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `application/json; schema="prometheus/telemetry"; version=0.0.2`},
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output: Processor002,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="delimited"`},
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output: MetricFamilyProcessor,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="illegal"; encoding="delimited"`},
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output: nil,
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err: errors.New("unrecognized protocol message illegal"),
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},
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{
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input: map[string]string{"Content-Type": `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="illegal"`},
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output: nil,
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err: errors.New("unsupported encoding illegal"),
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},
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{
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input: map[string]string{"Content-Type": `text/plain; version=0.0.4`},
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output: Processor004,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `text/plain`},
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output: Processor004,
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err: nil,
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},
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{
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input: map[string]string{"Content-Type": `text/plain; version=0.0.3`},
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output: nil,
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err: errors.New("unrecognized API version 0.0.3"),
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},
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}
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for i, scenario := range scenarios {
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var header http.Header
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if len(scenario.input) > 0 {
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header = http.Header{}
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}
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for key, value := range scenario.input {
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header.Add(key, value)
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}
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actual, err := ProcessorForRequestHeader(header)
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if scenario.err != err {
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if scenario.err != nil && err != nil {
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if scenario.err.Error() != err.Error() {
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t.Errorf("%d. expected %s, got %s", i, scenario.err, err)
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}
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} else if scenario.err != nil || err != nil {
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t.Errorf("%d. expected %s, got %s", i, scenario.err, err)
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}
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}
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if scenario.output != actual {
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t.Errorf("%d. expected %s, got %s", i, scenario.output, actual)
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}
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}
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}
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func TestDiscriminatorHTTPHeader(t *testing.T) {
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testDiscriminatorHTTPHeader(t)
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}
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func BenchmarkDiscriminatorHTTPHeader(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testDiscriminatorHTTPHeader(b)
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}
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}
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