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Dosya Düzenle: cond_addr_codec_test.go

// Copyright (C) MongoDB, Inc. 2017-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 bsoncodec

import (
	"reflect"
	"testing"

"go.mongodb.org/mongo-driver/bson/bsonrw"
	"go.mongodb.org/mongo-driver/bson/bsonrw/bsonrwtest"
	"go.mongodb.org/mongo-driver/internal/assert"
)

func TestCondAddrCodec(t *testing.T) {
	var inner int
	canAddrVal := reflect.ValueOf(&inner)
	addressable := canAddrVal.Elem()
	unaddressable := reflect.ValueOf(inner)
	rw := &bsonrwtest.ValueReaderWriter{}

t.Run("addressEncode", func(t *testing.T) {
		invoked := 0
		encode1 := ValueEncoderFunc(func(EncodeContext, bsonrw.ValueWriter, reflect.Value) error {
			invoked = 1
			return nil
		})
		encode2 := ValueEncoderFunc(func(EncodeContext, bsonrw.ValueWriter, reflect.Value) error {
			invoked = 2
			return nil
		})
		condEncoder := newCondAddrEncoder(encode1, encode2)

testCases := []struct {
			name    string
			val     reflect.Value
			invoked int
		}{
			{"canAddr", addressable, 1},
			{"else", unaddressable, 2},
		}
		for _, tc := range testCases {
			t.Run(tc.name, func(t *testing.T) {
				err := condEncoder.EncodeValue(EncodeContext{}, rw, tc.val)
				assert.Nil(t, err, "CondAddrEncoder error: %v", err)

assert.Equal(t, invoked, tc.invoked, "Expected function %v to be called, called %v", tc.invoked, invoked)
			})
		}

t.Run("error", func(t *testing.T) {
			errEncoder := newCondAddrEncoder(encode1, nil)
			err := errEncoder.EncodeValue(EncodeContext{}, rw, unaddressable)
			want := ErrNoEncoder{Type: unaddressable.Type()}
			assert.Equal(t, err, want, "expected error %v, got %v", want, err)
		})
	})
	t.Run("addressDecode", func(t *testing.T) {
		invoked := 0
		decode1 := ValueDecoderFunc(func(DecodeContext, bsonrw.ValueReader, reflect.Value) error {
			invoked = 1
			return nil
		})
		decode2 := ValueDecoderFunc(func(DecodeContext, bsonrw.ValueReader, reflect.Value) error {
			invoked = 2
			return nil
		})
		condDecoder := newCondAddrDecoder(decode1, decode2)

testCases := []struct {
			name    string
			val     reflect.Value
			invoked int
		}{
			{"canAddr", addressable, 1},
			{"else", unaddressable, 2},
		}
		for _, tc := range testCases {
			t.Run(tc.name, func(t *testing.T) {
				err := condDecoder.DecodeValue(DecodeContext{}, rw, tc.val)
				assert.Nil(t, err, "CondAddrDecoder error: %v", err)

assert.Equal(t, invoked, tc.invoked, "Expected function %v to be called, called %v", tc.invoked, invoked)
			})
		}

t.Run("error", func(t *testing.T) {
			errDecoder := newCondAddrDecoder(decode1, nil)
			err := errDecoder.DecodeValue(DecodeContext{}, rw, unaddressable)
			want := ErrNoDecoder{Type: unaddressable.Type()}
			assert.Equal(t, err, want, "expected error %v, got %v", want, err)
		})
	})
}

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