test that a failed file lock closes the file

flock_internal_test.go

@@ -0,0 +1,35 @@
+// Copyright 2015 Tim Heckman. All rights reserved.
+// Copyright 2018 The Gofrs. All rights reserved.
+// Use of this source code is governed by the BSD 3-Clause
+// license that can be found in the LICENSE file.
+
+package flock
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func Test(t *testing.T) {
+	tmpFileFh, err := ioutil.TempFile(os.TempDir(), "go-flock-")
+	tmpFileFh.Close()
+	tmpFile := tmpFileFh.Name()
+	os.Remove(tmpFile)
+
+	lock := New(tmpFile)
+	locked, err := lock.TryLock()
+	if locked == false || err != nil {
+		t.Fatal("failed to lock")
+	}
+
+	newLock := New(tmpFile)
+	locked, err = newLock.TryLock()
+	if locked != false || err != nil {
+		t.Fatal("should have failed locking")
+	}
+
+	if newLock.fh != nil {
+		t.Fatal("file handle should have been released and be nil")
+	}
+}