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// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package mongo
import (
"context"
"errors"
"testing"
"time"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/bsoncodec"
"go.mongodb.org/mongo-driver/internal/assert"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/mongo/readconcern"
"go.mongodb.org/mongo-driver/mongo/readpref"
"go.mongodb.org/mongo-driver/mongo/writeconcern"
"go.mongodb.org/mongo-driver/x/mongo/driver/topology"
)
func setupDb(name string, opts ...*options.DatabaseOptions) *Database {
client := setupClient()
return client.Database(name, opts...)
}
func compareDbs(t *testing.T, expected, got *Database) {
t.Helper()
assert.Equal(t, expected.readPreference, got.readPreference,
"expected read preference %v, got %v", expected.readPreference, got.readPreference)
assert.Equal(t, expected.readConcern, got.readConcern,
"expected read concern %v, got %v", expected.readConcern, got.readConcern)
assert.Equal(t, expected.writeConcern, got.writeConcern,
"expected write concern %v, got %v", expected.writeConcern, got.writeConcern)
assert.Equal(t, expected.registry, got.registry,
"expected write concern %v, got %v", expected.registry, got.registry)
}
func TestDatabase(t *testing.T) {
t.Run("initialize", func(t *testing.T) {
name := "foo"
db := setupDb(name)
assert.Equal(t, name, db.Name(), "expected db name %v, got %v", name, db.Name())
assert.NotNil(t, db.Client(), "expected valid client, got nil")
})
t.Run("options", func(t *testing.T) {
t.Run("custom", func(t *testing.T) {
rpPrimary := readpref.Primary()
rpSecondary := readpref.Secondary()
wc1 := writeconcern.New(writeconcern.W(5))
wc2 := writeconcern.New(writeconcern.W(10))
rcLocal := readconcern.Local()
rcMajority := readconcern.Majority()
reg := bsoncodec.NewRegistryBuilder().Build()
opts := options.Database().SetReadPreference(rpPrimary).SetReadConcern(rcLocal).SetWriteConcern(wc1).
SetReadPreference(rpSecondary).SetReadConcern(rcMajority).SetWriteConcern(wc2).SetRegistry(reg)
expected := &Database{
readPreference: rpSecondary,
readConcern: rcMajority,
writeConcern: wc2,
registry: reg,
}
got := setupDb("foo", opts)
compareDbs(t, expected, got)
})
t.Run("inherit", func(t *testing.T) {
rpPrimary := readpref.Primary()
rcLocal := readconcern.Local()
wc1 := writeconcern.New(writeconcern.W(10))
reg := bsoncodec.NewRegistryBuilder().Build()
client := setupClient(options.Client().SetReadPreference(rpPrimary).SetReadConcern(rcLocal).SetRegistry(reg))
got := client.Database("foo", options.Database().SetWriteConcern(wc1))
expected := &Database{
readPreference: rpPrimary,
readConcern: rcLocal,
writeConcern: wc1,
registry: reg,
}
compareDbs(t, expected, got)
})
})
t.Run("replace topology error", func(t *testing.T) {
db := setupDb("foo")
err := db.RunCommand(bgCtx, bson.D{{"x", 1}}).Err()
assert.Equal(t, ErrClientDisconnected, err, "expected error %v, got %v", ErrClientDisconnected, err)
err = db.Drop(bgCtx)
assert.Equal(t, ErrClientDisconnected, err, "expected error %v, got %v", ErrClientDisconnected, err)
_, err = db.ListCollections(bgCtx, bson.D{})
assert.Equal(t, ErrClientDisconnected, err, "expected error %v, got %v", ErrClientDisconnected, err)
})
t.Run("TransientTransactionError label", func(t *testing.T) {
client := setupClient(options.Client().ApplyURI("mongodb://nonexistent").SetServerSelectionTimeout(3 * time.Second))
err := client.Connect(bgCtx)
defer func() { _ = client.Disconnect(bgCtx) }()
assert.Nil(t, err, "expected nil, got %v", err)
t.Run("negative case of non-transaction", func(t *testing.T) {
var sse topology.ServerSelectionError
var le LabeledError
err := client.Ping(bgCtx, nil)
assert.NotNil(t, err, "expected error, got nil")
assert.True(t, errors.As(err, &sse), `expected error to be a "topology.ServerSelectionError"`)
if errors.As(err, &le) {
assert.False(t, le.HasErrorLabel("TransientTransactionError"), `expected error not to include the "TransientTransactionError" label`)
}
})
t.Run("positive case of transaction", func(t *testing.T) {
var sse topology.ServerSelectionError
var le LabeledError
sess, err := client.StartSession()
assert.Nil(t, err, "expected nil, got %v", err)
defer sess.EndSession(bgCtx)
sessCtx := NewSessionContext(bgCtx, sess)
err = sess.StartTransaction()
assert.Nil(t, err, "expected nil, got %v", err)
err = client.Ping(sessCtx, nil)
assert.NotNil(t, err, "expected error, got nil")
assert.True(t, errors.As(err, &sse), `expected error to be a "topology.ServerSelectionError"`)
assert.True(t, errors.As(err, &le), `expected error to implement the "LabeledError" interface`)
assert.True(t, le.HasErrorLabel("TransientTransactionError"), `expected error to include the "TransientTransactionError" label`)
})
})
t.Run("nil document error", func(t *testing.T) {
db := setupDb("foo")
err := db.RunCommand(bgCtx, nil).Err()
assert.Equal(t, ErrNilDocument, err, "expected error %v, got %v", ErrNilDocument, err)
_, err = db.Watch(context.Background(), nil)
watchErr := errors.New("can only marshal slices and arrays into aggregation pipelines, but got invalid")
assert.Equal(t, watchErr, err, "expected error %v, got %v", watchErr, err)
_, err = db.ListCollections(context.Background(), nil)
assert.Equal(t, ErrNilDocument, err, "expected error %v, got %v", ErrNilDocument, err)
_, err = db.ListCollectionNames(context.Background(), nil)
assert.Equal(t, ErrNilDocument, err, "expected error %v, got %v", ErrNilDocument, err)
})
}
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