mirror of
https://github.com/prometheus/prometheus
synced 2024-12-25 16:02:28 +00:00
9c4782f1cc
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>
160 lines
5.0 KiB
Go
160 lines
5.0 KiB
Go
// Copyright 2021 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 xds
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import (
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"context"
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"errors"
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"net/url"
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"testing"
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"time"
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v3 "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"
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"github.com/prometheus/common/config"
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"github.com/stretchr/testify/require"
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"google.golang.org/protobuf/types/known/anypb"
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)
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func testHTTPResourceConfig() *HTTPResourceClientConfig {
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return &HTTPResourceClientConfig{
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HTTPClientConfig: config.HTTPClientConfig{
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TLSConfig: config.TLSConfig{InsecureSkipVerify: true},
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},
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ResourceType: "monitoring",
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// Some known type.
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ResourceTypeURL: "type.googleapis.com/envoy.service.discovery.v3.DiscoveryRequest",
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Server: "http://localhost",
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ClientID: "test-id",
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}
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}
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func urlMustParse(str string) *url.URL {
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parsed, err := url.Parse(str)
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if err != nil {
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panic(err)
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}
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return parsed
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}
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func TestMakeXDSResourceHttpEndpointEmptyServerURLScheme(t *testing.T) {
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endpointURL, err := makeXDSResourceHTTPEndpointURL(ProtocolV3, urlMustParse("127.0.0.1"), "monitoring")
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require.Empty(t, endpointURL)
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require.Error(t, err)
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require.Equal(t, "invalid xDS server URL", err.Error())
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}
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func TestMakeXDSResourceHttpEndpointEmptyServerURLHost(t *testing.T) {
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endpointURL, err := makeXDSResourceHTTPEndpointURL(ProtocolV3, urlMustParse("grpc://127.0.0.1"), "monitoring")
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require.Empty(t, endpointURL)
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require.Error(t, err)
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require.Contains(t, err.Error(), "must be either 'http' or 'https'")
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}
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func TestMakeXDSResourceHttpEndpoint(t *testing.T) {
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endpointURL, err := makeXDSResourceHTTPEndpointURL(ProtocolV3, urlMustParse("http://127.0.0.1:5000"), "monitoring")
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require.NoError(t, err)
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require.Equal(t, "http://127.0.0.1:5000/v3/discovery:monitoring", endpointURL.String())
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}
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func TestCreateNewHTTPResourceClient(t *testing.T) {
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c := &HTTPResourceClientConfig{
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HTTPClientConfig: sdConf.HTTPClientConfig,
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Name: "test",
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ExtraQueryParams: url.Values{
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"param1": {"v1"},
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},
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Timeout: 1 * time.Minute,
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ResourceType: "monitoring",
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ResourceTypeURL: "type.googleapis.com/envoy.service.discovery.v3.DiscoveryRequest",
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Server: "http://127.0.0.1:5000",
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ClientID: "client",
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}
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client, err := NewHTTPResourceClient(c, ProtocolV3)
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require.NoError(t, err)
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require.Equal(t, "http://127.0.0.1:5000/v3/discovery:monitoring?param1=v1", client.endpoint)
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require.Equal(t, 1*time.Minute, client.client.Timeout)
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}
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func createTestHTTPResourceClient(t *testing.T, conf *HTTPResourceClientConfig, protocolVersion ProtocolVersion, responder discoveryResponder) (*HTTPResourceClient, func()) {
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s := createTestHTTPServer(t, func(request *v3.DiscoveryRequest) (*v3.DiscoveryResponse, error) {
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require.Equal(t, conf.ResourceTypeURL, request.TypeUrl)
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require.Equal(t, conf.ClientID, request.Node.Id)
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return responder(request)
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})
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conf.Server = s.URL
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client, err := NewHTTPResourceClient(conf, protocolVersion)
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require.NoError(t, err)
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return client, s.Close
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}
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func TestHTTPResourceClientFetchEmptyResponse(t *testing.T) {
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client, cleanup := createTestHTTPResourceClient(t, testHTTPResourceConfig(), ProtocolV3, func(request *v3.DiscoveryRequest) (*v3.DiscoveryResponse, error) {
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return nil, nil
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})
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defer cleanup()
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res, err := client.Fetch(context.Background())
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require.Nil(t, res)
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require.NoError(t, err)
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}
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func TestHTTPResourceClientFetchFullResponse(t *testing.T) {
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client, cleanup := createTestHTTPResourceClient(t, testHTTPResourceConfig(), ProtocolV3, func(request *v3.DiscoveryRequest) (*v3.DiscoveryResponse, error) {
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if request.VersionInfo == "1" {
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return nil, nil
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}
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return &v3.DiscoveryResponse{
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TypeUrl: request.TypeUrl,
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VersionInfo: "1",
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Nonce: "abc",
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Resources: []*anypb.Any{},
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}, nil
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})
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defer cleanup()
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res, err := client.Fetch(context.Background())
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require.NoError(t, err)
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require.NotNil(t, res)
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require.Equal(t, client.ResourceTypeURL(), res.TypeUrl)
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require.Empty(t, res.Resources)
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require.Equal(t, "abc", client.latestNonce, "Nonce not cached")
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require.Equal(t, "1", client.latestVersion, "Version not cached")
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res, err = client.Fetch(context.Background())
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require.Nil(t, res, "Update not expected")
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require.NoError(t, err)
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}
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func TestHTTPResourceClientServerError(t *testing.T) {
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client, cleanup := createTestHTTPResourceClient(t, testHTTPResourceConfig(), ProtocolV3, func(request *v3.DiscoveryRequest) (*v3.DiscoveryResponse, error) {
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return nil, errors.New("server error")
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})
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defer cleanup()
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res, err := client.Fetch(context.Background())
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require.Nil(t, res)
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require.Error(t, err)
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}
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