mirror of https://github.com/prometheus/prometheus
144 lines
3.7 KiB
Go
144 lines
3.7 KiB
Go
// Copyright 2020 The Prometheus Authors
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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 uyuni
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import (
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"context"
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"io"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/prometheus/discovery"
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"github.com/prometheus/prometheus/discovery/targetgroup"
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)
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func testUpdateServices(respHandler http.HandlerFunc) ([]*targetgroup.Group, error) {
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// Create a test server with mock HTTP handler.
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ts := httptest.NewServer(respHandler)
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defer ts.Close()
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conf := SDConfig{
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Server: ts.URL,
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}
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reg := prometheus.NewRegistry()
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refreshMetrics := discovery.NewRefreshMetrics(reg)
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metrics := conf.NewDiscovererMetrics(reg, refreshMetrics)
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err := metrics.Register()
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if err != nil {
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return nil, err
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}
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defer metrics.Unregister()
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defer refreshMetrics.Unregister()
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md, err := NewDiscovery(&conf, nil, metrics)
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if err != nil {
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return nil, err
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}
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return md.refresh(context.Background())
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}
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func TestUyuniSDHandleError(t *testing.T) {
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var (
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errTesting = "unable to login to Uyuni API: request error: bad status code - 500"
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respHandler = func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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w.Header().Set("Content-Type", "application/xml")
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io.WriteString(w, ``)
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}
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)
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tgs, err := testUpdateServices(respHandler)
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require.EqualError(t, err, errTesting)
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require.Empty(t, tgs)
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}
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func TestUyuniSDLogin(t *testing.T) {
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var (
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errTesting = "unable to get the managed system groups information of monitored clients: request error: bad status code - 500"
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call = 0
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respHandler = func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "application/xml")
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switch call {
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case 0:
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w.WriteHeader(http.StatusOK)
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io.WriteString(w, `<?xml version="1.0"?>
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<methodResponse>
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<params>
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<param>
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<value>
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a token
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</value>
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</param>
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</params>
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</methodResponse>`)
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case 1:
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w.WriteHeader(http.StatusInternalServerError)
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io.WriteString(w, ``)
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}
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call++
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}
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)
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tgs, err := testUpdateServices(respHandler)
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require.EqualError(t, err, errTesting)
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require.Empty(t, tgs)
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}
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func TestUyuniSDSkipLogin(t *testing.T) {
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var (
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errTesting = "unable to get the managed system groups information of monitored clients: request error: bad status code - 500"
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respHandler = func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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w.Header().Set("Content-Type", "application/xml")
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io.WriteString(w, ``)
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}
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)
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// Create a test server with mock HTTP handler.
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ts := httptest.NewServer(http.HandlerFunc(respHandler))
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defer ts.Close()
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conf := SDConfig{
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Server: ts.URL,
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}
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reg := prometheus.NewRegistry()
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refreshMetrics := discovery.NewRefreshMetrics(reg)
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metrics := conf.NewDiscovererMetrics(reg, refreshMetrics)
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require.NoError(t, metrics.Register())
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defer metrics.Unregister()
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defer refreshMetrics.Unregister()
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md, err := NewDiscovery(&conf, nil, metrics)
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if err != nil {
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t.Error(err)
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}
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// simulate a cached token
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md.token = `a token`
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md.tokenExpiration = time.Now().Add(time.Minute)
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tgs, err := md.refresh(context.Background())
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require.EqualError(t, err, errTesting)
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require.Empty(t, tgs)
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}
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