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// 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/testutil/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 := func(EncodeContext, bsonrw.ValueWriter, reflect.Value) error {
invoked = 1
return nil
}
encode2 := func(EncodeContext, bsonrw.ValueWriter, reflect.Value) error {
invoked = 2
return nil
}
condEncoder := newCondAddrEncoder(ValueEncoderFunc(encode1), ValueEncoderFunc(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(ValueEncoderFunc(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 := func(dctx DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
invoked = 1
return nil
}
decode2 := func(dctx DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
invoked = 2
return nil
}
condDecoder := newCondAddrDecoder(ValueDecoderFunc(decode1), ValueDecoderFunc(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(ValueDecoderFunc(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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