91 lines
2.5 KiB
Go
91 lines
2.5 KiB
Go
// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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package bson
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import (
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"slices"
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"strings"
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"testing"
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"gitea.psichedelico.com/go/bson/internal/assert"
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"gitea.psichedelico.com/go/bson/internal/require"
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"gitea.psichedelico.com/go/bson/x/bsonx/bsoncore"
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)
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func TestMarshalValue(t *testing.T) {
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t.Parallel()
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testCases := slices.Clone(marshalValueTestCases)
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testCases = append(testCases, marshalValueTestCase{
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name: "interface",
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val: marshalValueInterfaceOuter{
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Reader: marshalValueInterfaceInner{
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Foo: 10,
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},
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},
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bsontype: TypeEmbeddedDocument,
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bytes: bsoncore.NewDocumentBuilder().
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AppendDocument("reader", bsoncore.NewDocumentBuilder().
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AppendInt32("foo", 10).
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Build()).
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Build(),
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})
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for _, tc := range testCases {
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tc := tc
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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valueType, valueBytes, err := MarshalValue(tc.val)
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assert.Nil(t, err, "MarshalValue error: %v", err)
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compareMarshalValueResults(t, tc, valueType, valueBytes)
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})
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}
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t.Run("returns distinct address ranges", func(t *testing.T) {
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// Call MarshalValue in a loop with the same large value (make sure to
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// trigger the buffer pooling, which currently doesn't happen for very
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// small values). Compare the previous and current BSON byte slices and
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// make sure they always have distinct memory ranges.
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//
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// Don't run this test in parallel to maximize the chance that we get
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// the same pooled buffer for most/all calls.
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largeVal := strings.Repeat("1234567890", 100_000)
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var prev []byte
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for i := 0; i < 20; i++ {
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_, b, err := MarshalValue(largeVal)
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require.NoError(t, err)
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assert.DifferentAddressRanges(t, b, prev)
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prev = b
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}
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})
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}
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func compareMarshalValueResults(t *testing.T, tc marshalValueTestCase, gotType Type, gotBytes []byte) {
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t.Helper()
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expectedValue := RawValue{Type: tc.bsontype, Value: tc.bytes}
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gotValue := RawValue{Type: gotType, Value: gotBytes}
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assert.Equal(t, expectedValue, gotValue, "value mismatch; expected %s, got %s", expectedValue, gotValue)
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}
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// benchmark covering GODRIVER-2779
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func BenchmarkSliceCodecMarshal(b *testing.B) {
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testStruct := unmarshalerNonPtrStruct{B: []byte(strings.Repeat("t", 4096))}
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b.ResetTimer()
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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_, _, err := MarshalValue(testStruct)
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if err != nil {
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b.Fatal(err)
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}
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}
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})
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}
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