consul/agent/hcp/client/metrics_client_test.go

115 lines
2.9 KiB
Go

package client
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/stretchr/testify/require"
colpb "go.opentelemetry.io/proto/otlp/collector/metrics/v1"
metricpb "go.opentelemetry.io/proto/otlp/metrics/v1"
"google.golang.org/protobuf/proto"
"github.com/hashicorp/consul/version"
)
func TestNewMetricsClient(t *testing.T) {
for name, test := range map[string]struct {
wantErr string
cfg CloudConfig
ctx context.Context
}{
"success": {
cfg: &MockCloudCfg{},
ctx: context.Background(),
},
"failsWithoutCloudCfg": {
wantErr: "failed to init telemetry client: provide valid cloudCfg (Cloud Configuration for TLS)",
cfg: nil,
ctx: context.Background(),
},
"failsWithoutContext": {
wantErr: "failed to init telemetry client: provide a valid context",
cfg: MockCloudCfg{},
ctx: nil,
},
"failsHCPConfig": {
wantErr: "failed to init telemetry client",
cfg: MockCloudCfg{
ConfigErr: fmt.Errorf("test bad hcp config"),
},
ctx: context.Background(),
},
"failsBadResource": {
wantErr: "failed to init telemetry client",
cfg: MockCloudCfg{
ResourceErr: fmt.Errorf("test bad resource"),
},
ctx: context.Background(),
},
} {
t.Run(name, func(t *testing.T) {
client, err := NewMetricsClient(test.cfg, test.ctx)
if test.wantErr != "" {
require.Error(t, err)
require.Contains(t, err.Error(), test.wantErr)
return
}
require.Nil(t, err)
require.NotNil(t, client)
})
}
}
func TestExportMetrics(t *testing.T) {
for name, test := range map[string]struct {
wantErr string
status int
}{
"success": {
status: http.StatusOK,
},
"failsWithNonRetryableError": {
status: http.StatusBadRequest,
wantErr: "failed to export metrics: code 400",
},
} {
t.Run(name, func(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, r.Header.Get("content-type"), "application/x-protobuf")
require.Equal(t, r.Header.Get("x-hcp-resource-id"), testResourceID)
require.Equal(t, r.Header.Get("x-channel"), fmt.Sprintf("consul/%s", version.GetHumanVersion()))
require.Equal(t, r.Header.Get("Authorization"), "Bearer test-token")
body := colpb.ExportMetricsServiceResponse{}
bytes, err := proto.Marshal(&body)
require.NoError(t, err)
w.Header().Set("Content-Type", "application/x-protobuf")
w.WriteHeader(test.status)
w.Write(bytes)
}))
defer srv.Close()
client, err := NewMetricsClient(MockCloudCfg{}, context.Background())
require.NoError(t, err)
ctx := context.Background()
metrics := &metricpb.ResourceMetrics{}
err = client.ExportMetrics(ctx, metrics, srv.URL)
if test.wantErr != "" {
require.Error(t, err)
require.Contains(t, err.Error(), test.wantErr)
return
}
require.NoError(t, err)
})
}
}