prometheus/discovery/uyuni/uyuni_test.go

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// Copyright 2020 The Prometheus Authors
// 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 uyuni
import (
"context"
"io"
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/discovery/targetgroup"
)
func testUpdateServices(respHandler http.HandlerFunc) ([]*targetgroup.Group, error) {
// Create a test server with mock HTTP handler.
ts := httptest.NewServer(respHandler)
defer ts.Close()
conf := SDConfig{
Server: ts.URL,
}
md, err := NewDiscovery(&conf, nil)
if err != nil {
return nil, err
}
return md.refresh(context.Background())
}
func TestUyuniSDHandleError(t *testing.T) {
var (
errTesting = "unable to login to Uyuni API: request error: bad status code - 500"
respHandler = func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusInternalServerError)
w.Header().Set("Content-Type", "application/xml")
io.WriteString(w, ``)
}
)
tgs, err := testUpdateServices(respHandler)
require.EqualError(t, err, errTesting)
require.Equal(t, len(tgs), 0)
}