Files
mostlymatter/server/channels/utils/file_test.go
Jesse Hallam f28a2bcca7 server/public/ -- pre-requisite changes (#23278)
* invert depdendency: filestore -> model

* markdown: nolint:misspell

* inline jsonutils within model

* push model.GetInfoForBytes -> channels/app

* push channel/utils.CompileGo* -> plugin/utils

* push plugin/scheduler -> channels/jobs/plugins

* push utils.Copy(File|Dir) -> model

* oauthproiders/gitlab -> channels/app/oauthproviders/gitlab

* decouple plugin from einterfaces.MetricsInterface

* fix TestGetInfoForFile

* Revert "Run golangci in server CI (#23240)"

This reverts commit 349e5d4573.

* add model/utils

---------

Co-authored-by: Agniva De Sarker <agnivade@yahoo.co.in>
2023-05-09 13:30:02 -03:00

77 строки
2.2 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package utils
import (
"bytes"
"crypto/rand"
"io"
"testing"
"github.com/stretchr/testify/require"
)
func TestLimitedReaderWithError(t *testing.T) {
t.Run("read less than max size", func(t *testing.T) {
maxBytes := 10
randomBytes := make([]byte, maxBytes)
n, err := rand.Read(randomBytes)
require.NoError(t, err)
require.Equal(t, n, maxBytes)
lr := NewLimitedReaderWithError(bytes.NewReader(randomBytes), int64(maxBytes))
smallerBuf := make([]byte, maxBytes-3)
_, err = io.ReadFull(lr, smallerBuf)
require.NoError(t, err)
})
t.Run("read equal to max size", func(t *testing.T) {
maxBytes := 10
randomBytes := make([]byte, maxBytes)
n, err := rand.Read(randomBytes)
require.NoError(t, err)
require.Equal(t, n, maxBytes)
lr := NewLimitedReaderWithError(bytes.NewReader(randomBytes), int64(maxBytes))
buf := make([]byte, maxBytes)
_, err = io.ReadFull(lr, buf)
require.Truef(t, err == nil || err == io.EOF, "err must be nil or %v, got %v", io.EOF, err)
})
t.Run("single read, larger than max size", func(t *testing.T) {
maxBytes := 5
moreThanMaxBytes := maxBytes + 10
randomBytes := make([]byte, moreThanMaxBytes)
n, err := rand.Read(randomBytes)
require.NoError(t, err)
require.Equal(t, moreThanMaxBytes, n)
lr := NewLimitedReaderWithError(bytes.NewReader(randomBytes), int64(maxBytes))
buf := make([]byte, moreThanMaxBytes)
_, err = io.ReadFull(lr, buf)
require.Error(t, err)
require.Equal(t, SizeLimitExceeded, err)
})
t.Run("multiple small reads, total larger than max size", func(t *testing.T) {
maxBytes := 10
lessThanMaxBytes := maxBytes - 4
randomBytesLen := maxBytes * 2
randomBytes := make([]byte, randomBytesLen)
n, err := rand.Read(randomBytes)
require.NoError(t, err)
require.Equal(t, randomBytesLen, n)
lr := NewLimitedReaderWithError(bytes.NewReader(randomBytes), int64(maxBytes))
buf := make([]byte, lessThanMaxBytes)
_, err = io.ReadFull(lr, buf)
require.NoError(t, err)
// lets do it again
_, err = io.ReadFull(lr, buf)
require.Error(t, err)
require.Equal(t, SizeLimitExceeded, err)
})
}