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// Copyright (C) MongoDB, Inc. 2023-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 bson
import (
"io"
"testing"
"go.mongodb.org/mongo-driver/bson/bsontype"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/internal/assert"
"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
)
// helper type for testing MarshalValue that implements io.Reader
type marshalValueInterfaceInner struct {
Foo int
}
var _ io.Reader = marshalValueInterfaceInner{}
func (marshalValueInterfaceInner) Read([]byte) (int, error) {
return 0, nil
}
// helper type for testing MarshalValue that contains an interface
type marshalValueInterfaceOuter struct {
Reader io.Reader
}
// helper type for testing MarshalValue that implements ValueMarshaler
type marshalValueMarshaler struct {
Foo int
}
var _ ValueMarshaler = marshalValueMarshaler{}
func (mvi marshalValueMarshaler) MarshalBSONValue() (bsontype.Type, []byte, error) {
return bsontype.Int32, bsoncore.AppendInt32(nil, int32(mvi.Foo)), nil
}
var _ ValueUnmarshaler = &marshalValueMarshaler{}
func (mvi *marshalValueMarshaler) UnmarshalBSONValue(_ bsontype.Type, b []byte) error {
v, _, _ := bsoncore.ReadInt32(b)
mvi.Foo = int(v)
return nil
}
type marshalValueStruct struct {
Foo int
}
type marshalValueTestCase struct {
name string
val interface{}
bsontype bsontype.Type
bytes []byte
}
func newMarshalValueTestCases(t *testing.T) []marshalValueTestCase {
t.Helper()
var (
oid = primitive.NewObjectID()
regex = primitive.Regex{Pattern: "pattern", Options: "imx"}
dbPointer = primitive.DBPointer{DB: "db", Pointer: primitive.NewObjectID()}
codeWithScope = primitive.CodeWithScope{Code: "code", Scope: D{{"a", "b"}}}
decimal128 = primitive.NewDecimal128(5, 10)
structTest = marshalValueStruct{Foo: 10}
)
idx, scopeCore := bsoncore.AppendDocumentStart(nil)
scopeCore = bsoncore.AppendStringElement(scopeCore, "a", "b")
scopeCore, err := bsoncore.AppendDocumentEnd(scopeCore, idx)
assert.Nil(t, err, "Document error: %v", err)
structCore, err := Marshal(structTest)
assert.Nil(t, err, "Marshal error: %v", err)
return []marshalValueTestCase{
{"double", 3.14, bsontype.Double, bsoncore.AppendDouble(nil, 3.14)},
{"string", "hello world", bsontype.String, bsoncore.AppendString(nil, "hello world")},
{"binary", primitive.Binary{1, []byte{1, 2}}, bsontype.Binary, bsoncore.AppendBinary(nil, 1, []byte{1, 2})},
{"undefined", primitive.Undefined{}, bsontype.Undefined, []byte{}},
{"object id", oid, bsontype.ObjectID, bsoncore.AppendObjectID(nil, oid)},
{"boolean", true, bsontype.Boolean, bsoncore.AppendBoolean(nil, true)},
{"datetime", primitive.DateTime(5), bsontype.DateTime, bsoncore.AppendDateTime(nil, 5)},
{"null", primitive.Null{}, bsontype.Null, []byte{}},
{"regex", regex, bsontype.Regex, bsoncore.AppendRegex(nil, regex.Pattern, regex.Options)},
{"dbpointer", dbPointer, bsontype.DBPointer, bsoncore.AppendDBPointer(nil, dbPointer.DB, dbPointer.Pointer)},
{"javascript", primitive.JavaScript("js"), bsontype.JavaScript, bsoncore.AppendJavaScript(nil, "js")},
{"symbol", primitive.Symbol("symbol"), bsontype.Symbol, bsoncore.AppendSymbol(nil, "symbol")},
{"code with scope", codeWithScope, bsontype.CodeWithScope, bsoncore.AppendCodeWithScope(nil, "code", scopeCore)},
{"int32", 5, bsontype.Int32, bsoncore.AppendInt32(nil, 5)},
{"int64", int64(5), bsontype.Int64, bsoncore.AppendInt64(nil, 5)},
{"timestamp", primitive.Timestamp{T: 1, I: 5}, bsontype.Timestamp, bsoncore.AppendTimestamp(nil, 1, 5)},
{"decimal128", decimal128, bsontype.Decimal128, bsoncore.AppendDecimal128(nil, decimal128)},
{"min key", primitive.MinKey{}, bsontype.MinKey, []byte{}},
{"max key", primitive.MaxKey{}, bsontype.MaxKey, []byte{}},
{"struct", structTest, bsontype.EmbeddedDocument, structCore},
{"D", D{{"foo", int32(10)}}, bsontype.EmbeddedDocument, structCore},
{"M", M{"foo": int32(10)}, bsontype.EmbeddedDocument, structCore},
{"ValueMarshaler", marshalValueMarshaler{Foo: 10}, bsontype.Int32, bsoncore.AppendInt32(nil, 10)},
}
}
func newMarshalValueTestCasesWithInterfaceCore(t *testing.T) []marshalValueTestCase {
t.Helper()
marshalValueTestCases := newMarshalValueTestCases(t)
interfaceTest := marshalValueInterfaceOuter{
Reader: marshalValueInterfaceInner{
Foo: 10,
},
}
interfaceCore, err := Marshal(interfaceTest)
assert.Nil(t, err, "Marshal error: %v", err)
marshalValueTestCases = append(
marshalValueTestCases,
marshalValueTestCase{"interface", interfaceTest, bsontype.EmbeddedDocument, interfaceCore},
)
return marshalValueTestCases
}
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