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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 options
import (
"testing"
"go.mongodb.org/mongo-driver/internal/assert"
)
func TestMergeChangeStreamOptions(t *testing.T) {
t.Parallel()
fullDocumentP := func(x FullDocument) *FullDocument { return &x }
int32P := func(x int32) *int32 { return &x }
testCases := []struct {
description string
input []*ChangeStreamOptions
want *ChangeStreamOptions
}{
{
description: "empty",
input: []*ChangeStreamOptions{},
want: &ChangeStreamOptions{},
},
{
description: "many ChangeStreamOptions with one configuration each",
input: []*ChangeStreamOptions{
ChangeStream().SetFullDocumentBeforeChange(Required),
ChangeStream().SetFullDocument(Required),
ChangeStream().SetBatchSize(10),
},
want: &ChangeStreamOptions{
FullDocument: fullDocumentP(Required),
FullDocumentBeforeChange: fullDocumentP(Required),
BatchSize: int32P(10),
},
},
{
description: "single ChangeStreamOptions with many configurations",
input: []*ChangeStreamOptions{
ChangeStream().
SetFullDocumentBeforeChange(Required).
SetFullDocument(Required).
SetBatchSize(10),
},
want: &ChangeStreamOptions{
FullDocument: fullDocumentP(Required),
FullDocumentBeforeChange: fullDocumentP(Required),
BatchSize: int32P(10),
},
},
}
for _, tc := range testCases {
tc := tc // Capture range variable.
t.Run(tc.description, func(t *testing.T) {
t.Parallel()
got := MergeChangeStreamOptions(tc.input...)
assert.Equal(t, tc.want, got, "expected and actual ChangeStreamOptions are different")
})
}
}
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