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authorJakob Unterwurzacher2015-11-12 21:02:44 +0100
committerJakob Unterwurzacher2015-11-12 21:02:44 +0100
commit3664320fe5b4f5ec5bc398c84e9e48c8f529783a (patch)
tree214d6245189eaf71e7a147afdd45b99a1d224db1 /main_test.go
parentad41cdae11d9fe15bd289d504812ec4216bc8f35 (diff)
tests: move integration tests to separate directory
Also, use new "-defaultonly" flag for benchmarks (only tests with openssl=true plaintextnames=false)
Diffstat (limited to 'main_test.go')
-rw-r--r--main_test.go451
1 files changed, 0 insertions, 451 deletions
diff --git a/main_test.go b/main_test.go
deleted file mode 100644
index befdb78..0000000
--- a/main_test.go
+++ /dev/null
@@ -1,451 +0,0 @@
-package main
-
-import (
- "bytes"
- "crypto/md5"
- "encoding/hex"
- "fmt"
- "io"
- "io/ioutil"
- "os"
- "os/exec"
- "runtime"
- "sync"
- "testing"
-)
-
-const tmpDir = "/tmp/gocryptfs_main_test/"
-// Mountpoint
-const plainDir = tmpDir + "plain/"
-const cipherDir = tmpDir + "cipher/"
-
-func resetTmpDir() {
- fu := exec.Command("fusermount", "-z", "-u", plainDir)
- fu.Run()
-
- os.RemoveAll(tmpDir)
-
- err := os.MkdirAll(plainDir, 0777)
- if err != nil {
- panic("Could not create plainDir")
- }
-
- err = os.MkdirAll(cipherDir, 0777)
- if err != nil {
- panic("Could not create cipherDir")
- }
-}
-
-func mount(extraArgs ...string) {
- var args []string
- args = append(args, extraArgs...)
- //args = append(args, "--fusedebug")
- args = append(args, cipherDir)
- args = append(args, plainDir)
- c := exec.Command("./gocryptfs", args...)
- // Warning messages clutter the test output. Uncomment if you want to debug
- // failures.
- //c.Stdout = os.Stdout
- //c.Stderr = os.Stderr
- err := c.Run()
- if err != nil {
- fmt.Println(err)
- os.Exit(1)
- }
-}
-
-func unmount() error {
- fu := exec.Command("fusermount", "-z", "-u", plainDir)
- fu.Stdout = os.Stdout
- fu.Stderr = os.Stderr
- return fu.Run()
-}
-
-// Return md5 string for file "filename"
-func md5fn(filename string) string {
- buf, err := ioutil.ReadFile(filename)
- if err != nil {
- fmt.Printf("ReadFile: %v\n", err)
- return ""
- }
- return md5hex(buf)
-}
-
-// Return md5 string for "buf"
-func md5hex(buf []byte) string {
- rawHash := md5.Sum(buf)
- hash := hex.EncodeToString(rawHash[:])
- return hash
-}
-
-// Verify that the file size equals "want". This checks:
-// 1) Size reported by Stat()
-// 2) Number of bytes returned when reading the whole file
-func verifySize(t *testing.T, path string, want int) {
- buf, err := ioutil.ReadFile(path)
- if err != nil {
- t.Errorf("ReadFile failed: %v", err)
- } else if len(buf) != want {
- t.Errorf("wrong read size: got=%d want=%d", len(buf), want)
- }
-
- fi, err := os.Stat(path)
- if err != nil {
- t.Errorf("Stat failed: %v", err)
- } else if fi.Size() != int64(want) {
- t.Errorf("wrong stat file size, got=%d want=%d", fi.Size(), want)
- }
-}
-
-var plaintextNames bool
-
-// This is the entry point for the tests
-func TestMain(m *testing.M) {
- if testing.Verbose() {
- // First printf does not show up. Verbose() always return false before "m.Run()"?
- fmt.Printf("***** Testing with native Go crypto\n")
- }
- resetTmpDir()
- mount("--zerokey", "--openssl=false")
- r := m.Run()
- unmount()
-
- if testing.Verbose() {
- fmt.Printf("***** Testing with OpenSSL\n")
- }
- resetTmpDir()
- mount("--zerokey")
- r = m.Run()
- unmount()
-
- if testing.Verbose() {
- fmt.Printf("***** Testing \"--plaintextnames\"\n")
- }
- resetTmpDir()
- mount("--zerokey", "--plaintextnames")
- plaintextNames = true
- r = m.Run()
- unmount()
-
- os.Exit(r)
-}
-
-// Write "n" zero bytes to filename "fn", read again, compare hash
-func testWriteN(t *testing.T, fn string, n int) string {
- file, err := os.Create(plainDir + fn)
- if err != nil {
- t.FailNow()
- }
-
- d := make([]byte, n)
- written, err := file.Write(d)
- if err != nil || written != len(d) {
- fmt.Printf("err=\"%s\", written=%d\n", err, written)
- t.Fail()
- }
- file.Close()
-
- verifySize(t, plainDir+fn, n)
-
- bin := md5.Sum(d)
- hashWant := hex.EncodeToString(bin[:])
-
- hashActual := md5fn(plainDir + fn)
-
- if hashActual != hashWant {
- t.Errorf("Wrong content, hashWant=%s hashActual=%s\n", hashWant, hashActual)
- }
-
- return hashActual
-}
-
-func TestWrite10(t *testing.T) {
- testWriteN(t, "10", 10)
-}
-
-func TestWrite100(t *testing.T) {
- testWriteN(t, "100", 100)
-}
-
-func TestWrite1M(t *testing.T) {
- testWriteN(t, "1M", 1024*1024)
-}
-
-func TestWrite1Mx100(t *testing.T) {
- hashWant := testWriteN(t, "1Mx100", 1024*1024)
- // Read and check 100 times to catch race conditions
- var i int
- for i = 0; i < 100; i++ {
- hashActual := md5fn(plainDir + "1M")
- if hashActual != hashWant {
- fmt.Printf("Read corruption in loop # %d\n", i)
- t.FailNow()
- } else {
- //fmt.Print(".")
- }
- }
-}
-
-func TestTruncate(t *testing.T) {
- fn := plainDir + "truncate"
- file, err := os.Create(fn)
- if err != nil {
- t.FailNow()
- }
- // Grow to two blocks
- file.Truncate(7000)
- verifySize(t, fn, 7000)
- if md5fn(fn) != "95d4ec7038e3e4fdbd5f15c34c3f0b34" {
- t.Errorf("wrong content")
- }
- // Shrink - needs RMW
- file.Truncate(6999)
- verifySize(t, fn, 6999)
- if md5fn(fn) != "35fd15873ec6c35380064a41b9b9683b" {
- t.Errorf("wrong content")
- }
- // Shrink to one partial block
- file.Truncate(465)
- verifySize(t, fn, 465)
- if md5fn(fn) != "a1534d6e98a6b21386456a8f66c55260" {
- t.Errorf("wrong content")
- }
- // Grow to exactly one block
- file.Truncate(4096)
- verifySize(t, fn, 4096)
- if md5fn(fn) != "620f0b67a91f7f74151bc5be745b7110" {
- t.Errorf("wrong content")
- }
-}
-
-func TestAppend(t *testing.T) {
- fn := plainDir + "append"
- file, err := os.Create(fn)
- if err != nil {
- t.FailNow()
- }
- data := []byte("testdata123456789") // length 17
- var buf bytes.Buffer
- var hashWant string
- for i := 0; i <= 500; i++ {
- file.Write(data)
- buf.Write(data)
- bin := md5.Sum(buf.Bytes())
- hashWant = hex.EncodeToString(bin[:])
- hashActual := md5fn(fn)
- if hashWant != hashActual {
- t.FailNow()
- }
- }
-
- // Overwrite with the same data
- // Hash must stay the same
- file.Seek(0, 0)
- for i := 0; i <= 500; i++ {
- file.Write(data)
- hashActual := md5fn(fn)
- if hashWant != hashActual {
- t.FailNow()
- }
- }
-}
-
-// Create a file with holes by writing to offset 0 (block #0) and
-// offset 4096 (block #1).
-func TestFileHoles(t *testing.T) {
- fn := plainDir + "fileholes"
- file, err := os.Create(fn)
- if err != nil {
- t.Errorf("file create failed")
- }
- foo := []byte("foo")
- file.Write(foo)
- file.WriteAt(foo, 4096)
- _, err = ioutil.ReadFile(fn)
- if err != nil {
- t.Error(err)
- }
-}
-
-func sContains(haystack []string, needle string) bool {
- for _, element := range haystack {
- if element == needle {
- return true
- }
- }
- return false
-}
-
-func TestRmwRace(t *testing.T) {
-
- runtime.GOMAXPROCS(10)
-
- fn := plainDir + "rmwrace"
- f1, err := os.Create(fn)
- if err != nil {
- t.Fatalf("file create failed")
- }
- f2, err := os.Create(fn)
- if err != nil {
- t.Fatalf("file create failed")
- }
-
- oldBlock := bytes.Repeat([]byte("o"), 4096)
-
- newBlock := bytes.Repeat([]byte("n"), 4096)
-
- shortBlock := bytes.Repeat([]byte("s"), 16)
-
- mergedBlock := make([]byte, 4096)
- copy(mergedBlock, newBlock)
- copy(mergedBlock[4080:], shortBlock)
-
- goodMd5 := make(map[string]int)
-
- for i := 0; i < 1000; i++ {
- // Reset to [ooooooooo]
- _, err = f1.WriteAt(oldBlock, 0)
- if err != nil {
- t.Fatalf("Write failed")
- }
-
- var wg sync.WaitGroup
- wg.Add(2)
-
- // Write to the end of the file, [....ssss]
- go func() {
- f1.WriteAt(shortBlock, 4080)
- wg.Done()
- }()
-
- // Overwrite to [nnnnnnn]
- go func() {
- f2.WriteAt(newBlock, 0)
- wg.Done()
- }()
-
- wg.Wait()
-
- // The file should be either:
- // [nnnnnnnnnn] (md5: 6c1660fdabccd448d1359f27b3db3c99) or
- // [nnnnnnssss] (md5: da885006a6a284530a427c73ce1e5c32)
- // but it must not be
- // [oooooossss]
-
- buf, _ := ioutil.ReadFile(fn)
- m := md5hex(buf)
- goodMd5[m] = goodMd5[m] + 1
-
- /*
- if m == "6c1660fdabccd448d1359f27b3db3c99" {
- fmt.Println(hex.Dump(buf))
- t.FailNow()
- }
- */
- }
- if testing.Verbose() {
- fmt.Println(goodMd5)
- }
-}
-
-// With "--plaintextnames", the name "/gocryptfs.conf" is reserved.
-// Otherwise there should be no restrictions.
-func TestFiltered(t *testing.T) {
- filteredFile := plainDir + "gocryptfs.conf"
- file, err := os.Create(filteredFile)
- if plaintextNames == true && err == nil {
- fmt.Errorf("should have failed but didn't")
- } else if plaintextNames == false && err != nil {
- t.Error(err)
- }
- file.Close()
-
- err = os.Remove(filteredFile)
- if plaintextNames == true && err == nil {
- fmt.Errorf("should have failed but didn't")
- } else if plaintextNames == false && err != nil {
- t.Error(err)
- }
-}
-
-func TestFilenameEncryption(t *testing.T) {
- file, err := os.Create(plainDir + "TestFilenameEncryption.txt")
- file.Close()
- if err != nil {
- t.Fatal(err)
- }
-
- _, err = os.Stat(cipherDir + "TestFilenameEncryption.txt")
- if plaintextNames == true && err != nil {
- t.Errorf("plaintextnames not working: %v", err)
- } else if plaintextNames == false && err == nil {
- t.Errorf("file name encryption not working")
- }
-}
-
-func BenchmarkStreamWrite(t *testing.B) {
- buf := make([]byte, 1024*1024)
- t.SetBytes(int64(len(buf)))
-
- file, err := os.Create(plainDir + "BenchmarkWrite")
- if err != nil {
- t.FailNow()
- }
-
- t.ResetTimer()
- var i int
- for i = 0; i < t.N; i++ {
- written, err := file.Write(buf)
- if err != nil {
- fmt.Printf("err=\"%s\", written=%d\n", err.Error(), written)
- t.FailNow()
- }
- }
- file.Close()
-}
-
-func BenchmarkStreamRead(t *testing.B) {
- buf := make([]byte, 1024*1024)
- t.SetBytes(int64(len(buf)))
-
- fn := plainDir + "BenchmarkWrite"
- fi, _ := os.Stat(fn)
- mb := int(fi.Size() / 1024 / 1024)
-
- if t.N > mb {
- // Grow file so we can satisfy the test
- //fmt.Printf("Growing file to %d MB... ", t.N)
- f2, err := os.OpenFile(fn, os.O_WRONLY|os.O_APPEND, 0666)
- if err != nil {
- fmt.Println(err)
- t.FailNow()
- }
- for h := 0; h < t.N-mb; h++ {
- _, err = f2.Write(buf)
- if err != nil {
- fmt.Println(err)
- t.FailNow()
- }
- }
- f2.Close()
- //fmt.Printf("done\n")
- }
-
- file, err := os.Open(plainDir + "BenchmarkWrite")
- if err != nil {
- t.FailNow()
- }
- t.ResetTimer()
- var i int
- for i = 0; i < t.N; i++ {
- _, err := file.Read(buf)
- if err == io.EOF {
- fmt.Printf("Test file too small\n")
- t.SkipNow()
- } else if err != nil {
- fmt.Println(err)
- t.FailNow()
- }
- }
- file.Close()
-}