Merge branch 'GODRIVER-3444' of github.com:prestonvasquez/mongo-go-dr…

…iver into GODRIVER-3444

bson/marshal.go

@@ -133,7 +133,10 @@ func MarshalValue(val interface{}) (Type, []byte, error) {
 		return 0, nil, err
 	}
 	typ := sw.Next(2)
-	return Type(typ[0]), sw.Bytes(), nil
+	clone := append([]byte{}, sw.Bytes()...) // Don't hand out a shared reference to byte buffer bytes
+	// and fully copy the data. The byte buffer is (potentially) reused
+	// and handing out only a reference to the bytes may lead to race-conditions with the buffer.
+	return Type(typ[0]), clone, nil
 }
 
 // MarshalExtJSON returns the extended JSON encoding of val.

bson/marshal_value_test.go

@@ -11,6 +11,7 @@ import (
 	"testing"
 
 	"go.mongodb.org/mongo-driver/v2/internal/assert"
+	"go.mongodb.org/mongo-driver/v2/internal/require"
 )
 
 func TestMarshalValue(t *testing.T) {
@@ -33,6 +34,25 @@ func TestMarshalValue(t *testing.T) {
 			})
 		}
 	})
+
+	t.Run("returns distinct address ranges", func(t *testing.T) {
+		// Call MarshalValue in a loop with the same large value (make sure to
+		// trigger the buffer pooling, which currently doesn't happen for very
+		// small values). Compare the previous and current BSON byte slices and
+		// make sure they always have distinct memory ranges.
+		//
+		// Don't run this test in parallel to maximize the chance that we get
+		// the same pooled buffer for most/all calls.
+		largeVal := strings.Repeat("1234567890", 100_000)
+		var prev []byte
+		for i := 0; i < 20; i++ {
+			_, b, err := MarshalValue(largeVal)
+			require.NoError(t, err)
+
+			assert.DifferentAddressRanges(t, b, prev)
+			prev = b
+		}
+	})
 }
 
 func compareMarshalValueResults(t *testing.T, tc marshalValueTestCase, gotType Type, gotBytes []byte) {

docs/migration-2.0.md

@@ -503,11 +503,7 @@ mongo.WithSession(context.TODO(),sess,func(ctx context.Context) error {
 
 ## Options Package
 
-The following fields were marked for internal use only and do not have replacement:
-
-- `ClientOptions.AuthenticateToAnything`
-- `FindOptions.OplogReplay`
-- `FindOneOptions.OplogReplay`
+`ClientOptions.AuthenticateToAnything` was marked for internal use in 1.x and does not have a replacement.
 
 The following fields were removed because they are no longer supported by the server
 
@@ -844,7 +840,7 @@ The `bson/primitive` package has been merged into the `bson` package.
 
 Additionally, the `bson.D` has implemented the `json.Marshaler` and `json.Unmarshaler` interfaces, where it uses a key-value representation in "regular" (i.e. non-Extended) JSON.
 
-The `bson.D.String` and `bson.M.String` methods return a relaxed Extended JSON representation of the document.
+The `bson.D.String` and `bson.M.String` methods return an Extended JSON representation of the document.
 
 ```go
 // v2

examples/_logger/logrus/go.mod

@@ -18,8 +18,8 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )

examples/_logger/logrus/go.sum

@@ -30,8 +30,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -46,8 +46,8 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
-golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
+golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

examples/_logger/zap/go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )

examples/_logger/zap/go.sum

@@ -48,8 +48,8 @@ go.uber.org/zap v1.24.0 h1:FiJd5l1UOLj0wCgbSE0rwwXHzEdAZS6hiiSnxJN/D60=
 go.uber.org/zap v1.24.0/go.mod h1:2kMP+WWQ8aoFoedH3T2sq6iJ2yDWpHbP0f6MQbS9Gkg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=

examples/_logger/zerolog/go.mod

@@ -20,8 +20,8 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )

examples/_logger/zerolog/go.sum

@@ -31,8 +31,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -48,8 +48,8 @@ golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
-golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
+golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/xdg-go/scram v1.1.2
 	github.com/xdg-go/stringprep v1.0.4
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78
-	golang.org/x/crypto v0.31.0
+	golang.org/x/crypto v0.32.0
 	golang.org/x/sync v0.10.0
 )
 

go.sum

@@ -17,8 +17,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=

internal/cmd/benchmark/go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect

internal/cmd/benchmark/go.sum

@@ -31,8 +31,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=

internal/cmd/compilecheck/go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )

internal/cmd/compilecheck/go.sum

@@ -15,8 +15,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=

internal/cmd/faas/awslambda/mongodb/go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/sync v0.10.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )

internal/cmd/faas/awslambda/mongodb/go.sum

@@ -29,8 +29,8 @@ github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfS
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
+golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=

internal/driverutil/operation.go

@@ -35,6 +35,7 @@ const (
 	ListIndexesOp       = "listIndexes"       // ListIndexesOp is the name for listing indexes
 	ListDatabasesOp     = "listDatabases"     // ListDatabasesOp is the name for listing databases
 	UpdateOp            = "update"            // UpdateOp is the name for updating
+	BulkWriteOp         = "bulkWrite"         // BulkWriteOp is the name for client-level bulk write
 )
 
 func CalculateMaxTimeMS(ctx context.Context, rttMin time.Duration, rttStats string, err error) (int64, error) {

internal/integration/client_side_encryption_test.go

@@ -394,8 +394,8 @@ func TestClientSideEncryptionCustomCrypt(t *testing.T) {
 			"expected 0 calls to DecryptExplicit, got %v", cc.numDecryptExplicitCalls)
 		assert.Equal(mt, cc.numCloseCalls, 0,
 			"expected 0 calls to Close, got %v", cc.numCloseCalls)
-		assert.Equal(mt, cc.numBypassAutoEncryptionCalls, 2,
-			"expected 2 calls to BypassAutoEncryption, got %v", cc.numBypassAutoEncryptionCalls)
+		assert.Equal(mt, cc.numBypassAutoEncryptionCalls, 1,
+			"expected 1 call to BypassAutoEncryption, got %v", cc.numBypassAutoEncryptionCalls)
 	})
 }
 

internal/integration/client_test.go

@@ -28,6 +28,7 @@ import (
 	"go.mongodb.org/mongo-driver/v2/mongo"
 	"go.mongodb.org/mongo-driver/v2/mongo/options"
 	"go.mongodb.org/mongo-driver/v2/mongo/readpref"
+	"go.mongodb.org/mongo-driver/v2/mongo/writeconcern"
 	"go.mongodb.org/mongo-driver/v2/x/bsonx/bsoncore"
 	"go.mongodb.org/mongo-driver/v2/x/mongo/driver"
 	"go.mongodb.org/mongo-driver/v2/x/mongo/driver/wiremessage"
@@ -720,6 +721,128 @@ func TestClient(t *testing.T) {
 	})
 }
 
+func TestClient_BulkWrite(t *testing.T) {
+	mt := mtest.New(t, noClientOpts)
+
+	mtBulkWriteOpts := mtest.NewOptions().MinServerVersion("8.0").AtlasDataLake(false).ClientType(mtest.Pinned)
+	mt.RunOpts("bulk write with nil filter", mtBulkWriteOpts, func(mt *mtest.T) {
+		mt.Parallel()
+
+		testCases := []struct {
+			name        string
+			writes      []mongo.ClientBulkWrite
+			errorString string
+		}{
+			{
+				name: "DeleteOne",
+				writes: []mongo.ClientBulkWrite{{
+					Database:   "foo",
+					Collection: "bar",
+					Model:      mongo.NewClientDeleteOneModel(),
+				}},
+				errorString: "delete filter cannot be nil",
+			},
+			{
+				name: "DeleteMany",
+				writes: []mongo.ClientBulkWrite{{
+					Database:   "foo",
+					Collection: "bar",
+					Model:      mongo.NewClientDeleteManyModel(),
+				}},
+				errorString: "delete filter cannot be nil",
+			},
+			{
+				name: "UpdateOne",
+				writes: []mongo.ClientBulkWrite{{
+					Database:   "foo",
+					Collection: "bar",
+					Model:      mongo.NewClientUpdateOneModel(),
+				}},
+				errorString: "update filter cannot be nil",
+			},
+			{
+				name: "UpdateMany",
+				writes: []mongo.ClientBulkWrite{{
+					Database:   "foo",
+					Collection: "bar",
+					Model:      mongo.NewClientUpdateManyModel(),
+				}},
+				errorString: "update filter cannot be nil",
+			},
+		}
+		for _, tc := range testCases {
+			tc := tc
+
+			mt.Run(tc.name, func(mt *mtest.T) {
+				mt.Parallel()
+
+				_, err := mt.Client.BulkWrite(context.Background(), tc.writes)
+				require.EqualError(mt, err, tc.errorString)
+			})
+		}
+	})
+	mt.RunOpts("bulk write with write concern", mtBulkWriteOpts, func(mt *mtest.T) {
+		mt.Parallel()
+
+		testCases := []struct {
+			name string
+			opts *options.ClientBulkWriteOptionsBuilder
+			want bool
+		}{
+			{
+				name: "unacknowledged",
+				opts: options.ClientBulkWrite().SetWriteConcern(writeconcern.Unacknowledged()).SetOrdered(false),
+				want: false,
+			},
+			{
+				name: "acknowledged",
+				want: true,
+			},
+		}
+		for _, tc := range testCases {
+			tc := tc
+
+			mt.Run(tc.name, func(mt *mtest.T) {
+				mt.Parallel()
+
+				insertOneModel := mongo.NewClientInsertOneModel().SetDocument(bson.D{{"x", 1}})
+				writes := []mongo.ClientBulkWrite{{
+					Database:   "foo",
+					Collection: "bar",
+					Model:      insertOneModel,
+				}}
+				res, err := mt.Client.BulkWrite(context.Background(), writes, tc.opts)
+				require.NoError(mt, err, "BulkWrite error: %v", err)
+				require.NotNil(mt, res, "expected a ClientBulkWriteResult")
+				assert.Equal(mt, res.Acknowledged, tc.want, "expected Acknowledged: %v, got: %v", tc.want, res.Acknowledged)
+			})
+		}
+	})
+	var bulkWrites int
+	cmdMonitor := &event.CommandMonitor{
+		Started: func(_ context.Context, evt *event.CommandStartedEvent) {
+			if evt.CommandName == "bulkWrite" {
+				bulkWrites++
+			}
+		},
+	}
+	clientOpts := options.Client().SetMonitor(cmdMonitor)
+	mt.RunOpts("bulk write with large messages", mtBulkWriteOpts.ClientOptions(clientOpts), func(mt *mtest.T) {
+		mt.Parallel()
+
+		document := bson.D{{"largeField", strings.Repeat("a", 16777216-100)}} // Adjust size to account for BSON overhead
+		writes := []mongo.ClientBulkWrite{
+			{"db", "x", mongo.NewClientInsertOneModel().SetDocument(document)},
+			{"db", "x", mongo.NewClientInsertOneModel().SetDocument(document)},
+			{"db", "x", mongo.NewClientInsertOneModel().SetDocument(document)},
+		}
+
+		_, err := mt.Client.BulkWrite(context.Background(), writes)
+		require.NoError(t, err)
+		assert.Equal(t, 2, bulkWrites, "expected %d bulkWrites, got %d", 2, bulkWrites)
+	})
+}
+
 func TestClient_BSONOptions(t *testing.T) {
 	t.Parallel()