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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 readconcern_test
import (
"testing"
"go.mongodb.org/mongo-driver/internal/assert"
"go.mongodb.org/mongo-driver/mongo/readconcern"
"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
)
func TestReadConcern_MarshalBSONValue(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
rc *readconcern.ReadConcern
bytes []byte
wantErrorMsg *string
}{
{
name: "local",
rc: readconcern.Local(),
bytes: bsoncore.BuildDocument(nil, bsoncore.AppendStringElement(nil, "level", "local")),
wantErrorMsg: nil,
},
{
name: "empty",
rc: readconcern.New(),
bytes: bsoncore.BuildDocument(nil, nil),
wantErrorMsg: nil,
},
{
name: "nil",
rc: nil,
bytes: nil,
wantErrorMsg: func() *string {
msg := "cannot marshal nil ReadConcern"
return &msg
}(),
},
}
for _, tc := range testCases {
tc := tc // Capture range variable.
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
_, b, err := tc.rc.MarshalBSONValue()
assert.Equal(t, tc.bytes, b, "expected and actual outputs do not match")
if tc.wantErrorMsg == nil {
assert.NoError(t, err, "an unexpected error is returned")
} else {
assert.ErrorContains(t, err, *tc.wantErrorMsg, "expected and actual errors do not match")
}
})
}
}
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