tests: split example_filesystems into its own package

Running these tests from integration_tests' TestMain() was awkward
because they were run twice with unchanged settings.
integration_tests tests everything with OpenSSL and with native
Go crypto, but this does not take affect for the example filesystems.

To make this work, test_helpers is also split into its own package.

1 files changed, 0 insertions, 237 deletions

diff --git a/integration_tests/helpers.go b/integration_tests/helpers.go
deleted file mode 100644
index 4881a4b..0000000
--- a/integration_tests/helpers.go
+++ /dev/null
@@ -1,237 +0,0 @@
-package integration_tests
-
-import (
-	"crypto/md5"
-	"encoding/hex"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"syscall"
-	"testing"
-
-	"github.com/rfjakob/gocryptfs/internal/nametransform"
-)
-
-// Note: the code assumes that all have a trailing slash
-const tmpDir = "/tmp/gocryptfs_main_test/"
-const defaultPlainDir = tmpDir + "plain/"
-const defaultCipherDir = tmpDir + "cipher/"
-
-const gocryptfsBinary = "../gocryptfs"
-
-// resetTmpDir - delete old tmp dir, create new one, write gocryptfs.diriv
-func resetTmpDir(plaintextNames bool) {
-
-	// Try to unmount everything
-	entries, err := ioutil.ReadDir(tmpDir)
-	if err == nil {
-		for _, e := range entries {
-			fu := exec.Command("fusermount", "-z", "-u", filepath.Join(tmpDir, e.Name()))
-			fu.Run()
-		}
-	}
-
-	err = os.RemoveAll(tmpDir)
-	if err != nil {
-		fmt.Println("resetTmpDir: RemoveAll:" + err.Error())
-		os.Exit(1)
-	}
-
-	err = os.MkdirAll(defaultPlainDir, 0777)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-
-	err = os.MkdirAll(defaultCipherDir, 0777)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-	if !plaintextNames {
-		err = nametransform.WriteDirIV(defaultCipherDir)
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-	}
-}
-
-// mount CIPHERDIR "c" on PLAINDIR "p"
-func mount(c string, p string, extraArgs ...string) error {
-	var args []string
-	args = append(args, extraArgs...)
-	args = append(args, "-nosyslog", "-q", "-wpanic")
-	//args = append(args, "-fusedebug")
-	//args = append(args, "-d")
-	args = append(args, c)
-	args = append(args, p)
-	cmd := exec.Command(gocryptfsBinary, args...)
-	cmd.Stderr = os.Stderr
-	cmd.Stdout = os.Stdout
-	return cmd.Run()
-}
-
-// mountOrExit calls mount() and exits on failure.
-func mountOrExit(c string, p string, extraArgs ...string) {
-	err := mount(c, p, extraArgs...)
-	if err != nil {
-		fmt.Printf("mount failed: %v", err)
-		os.Exit(1)
-	}
-}
-
-// mountOrFatal calls mount() and calls t.Fatal() on failure.
-func mountOrFatal(t *testing.T, c string, p string, extraArgs ...string) {
-	err := mount(c, p, extraArgs...)
-	if err != nil {
-		t.Fatal(fmt.Errorf("mount failed: %v", err))
-	}
-}
-
-// unmount PLAINDIR "p"
-func unmount(p string) error {
-	fu := exec.Command("fusermount", "-u", "-z", p)
-	fu.Stdout = os.Stdout
-	fu.Stderr = os.Stderr
-	err := fu.Run()
-	if err != nil {
-		fmt.Println(err)
-	}
-	return err
-}
-
-// 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)
-	}
-}
-
-// Create and delete a directory
-func testMkdirRmdir(t *testing.T, plainDir string) {
-	dir := plainDir + "dir1"
-	err := os.Mkdir(dir, 0777)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = syscall.Rmdir(dir)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Removing a non-empty dir should fail with ENOTEMPTY
-	if os.Mkdir(dir, 0777) != nil {
-		t.Fatal(err)
-	}
-	f, err := os.Create(dir + "/file")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-	err = syscall.Rmdir(dir)
-	errno := err.(syscall.Errno)
-	if errno != syscall.ENOTEMPTY {
-		t.Errorf("Should have gotten ENOTEMPTY, go %v", errno)
-	}
-	if syscall.Unlink(dir+"/file") != nil {
-		t.Fatal(err)
-	}
-	if syscall.Rmdir(dir) != nil {
-		t.Fatal(err)
-	}
-
-	// We should also be able to remove a directory we do not have permissions to
-	// read or write
-	err = os.Mkdir(dir, 0000)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = syscall.Rmdir(dir)
-	if err != nil {
-		// Make sure the directory can cleaned up by the next test run
-		os.Chmod(dir, 0700)
-		t.Fatal(err)
-	}
-}
-
-// Create and rename a file
-func testRename(t *testing.T, plainDir string) {
-	file1 := plainDir + "rename1"
-	file2 := plainDir + "rename2"
-	err := ioutil.WriteFile(file1, []byte("content"), 0777)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = syscall.Rename(file1, file2)
-	if err != nil {
-		t.Fatal(err)
-	}
-	syscall.Unlink(file2)
-}
-
-// verifyExistence - check in 3 ways that "path" exists:
-// stat, open, readdir
-func verifyExistence(path string) bool {
-
-	// Check that file can be stated
-	_, err := os.Stat(path)
-	if err != nil {
-		//t.Log(err)
-		return false
-	}
-
-	// Check that file can be opened
-	fd, err := os.Open(path)
-	if err != nil {
-		//t.Log(err)
-		return false
-	}
-	fd.Close()
-
-	// Check that file shows up in directory listing
-	dir := filepath.Dir(path)
-	name := filepath.Base(path)
-	fi, err := ioutil.ReadDir(dir)
-	if err != nil {
-		//t.Log(err)
-		return false
-	}
-	for _, i := range fi {
-		if i.Name() == name {
-			return true
-		}
-	}
-	return false
-}