1 files changed, 94 insertions, 0 deletions
diff --git a/integration_tests/helpers.go b/integration_tests/helpers.go
new file mode 100644
index 0000000..9bfd9fc
--- /dev/null
+++ b/integration_tests/helpers.go
@@ -0,0 +1,94 @@
+package integration_tests
+
+import (
+	"os"
+	"os/exec"
+	"fmt"
+	"io/ioutil"
+	"crypto/md5"
+	"encoding/hex"
+	"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)
+	}
+}