forked from FerretDB/FerretDB
/
client.go
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/
client.go
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// Copyright 2021 FerretDB Inc.
//
// 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 setup
import (
"context"
"net/url"
"os"
"path/filepath"
"github.com/stretchr/testify/require"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo"
"go.opentelemetry.io/otel"
"github.com/FerretDB/FerretDB/internal/util/lazyerrors"
"github.com/FerretDB/FerretDB/internal/util/observability"
"github.com/FerretDB/FerretDB/internal/util/testutil/testtb"
)
// makeClient returns new client for the given working MongoDB URI.
func makeClient(ctx context.Context, uri string) (*mongo.Client, error) {
clientOpts := options.Client().ApplyURI(uri)
clientOpts.SetMonitor(otelmongo.NewMonitor())
client, err := mongo.Connect(ctx, clientOpts)
if err != nil {
return nil, lazyerrors.Error(err)
}
// When too many connections are open, PostgreSQL returns an error,
// but this error is hanging (panic in setupClient doesn't immediately stop the test).
// TODO https://github.com/FerretDB/FerretDB/issues/3535
// if err = client.Ping(ctx, nil); err != nil {
// return nil, lazyerrors.Error(err)
// }
return client, nil
}
// setupClient returns test-specific client for the given MongoDB URI.
//
// It disconnects automatically when test ends.
//
// If the connection can't be established, it panics,
// as it doesn't make sense to proceed with other tests if we couldn't connect in one of them.
func setupClient(tb testtb.TB, ctx context.Context, uri string) *mongo.Client {
tb.Helper()
ctx, span := otel.Tracer("").Start(ctx, "setupClient")
defer span.End()
defer observability.FuncCall(ctx)()
client, err := makeClient(ctx, uri)
if err != nil {
tb.Error(err)
panic("setupClient: " + err.Error())
}
tb.Cleanup(func() {
err = client.Disconnect(ctx)
require.NoError(tb, err)
})
return client
}
// toAbsolutePathURI replaces the relative path of tlsCertificateKeyFile and tlsCaFile path
// to an absolute path. If the file is not found because the test is in subdirectory
// such as`integration/user/`, the parent directory is looked.
func toAbsolutePathURI(tb testtb.TB, uri string) string {
u, err := url.Parse(uri)
require.NoError(tb, err)
values := url.Values{}
for k, v := range u.Query() {
require.Len(tb, v, 1)
switch k {
case "tlsCertificateKeyFile", "tlsCaFile":
file := v[0]
if filepath.IsAbs(file) {
values[k] = []string{file}
continue
}
file = filepath.Join(Dir(tb), v[0])
if _, err = os.Stat(file); os.IsNotExist(err) {
file = filepath.Join(Dir(tb), "..", v[0])
}
values[k] = []string{file}
default:
values[k] = v
}
}
u.RawQuery = values.Encode()
return u.String()
}