From ff9c68f93cb6e35aab67c5168f4838f67aa8ed87 Mon Sep 17 00:00:00 2001
From: Aaron Jacobs <jacobsa@google.com>
Date: Mon, 23 Mar 2015 16:15:53 +1100
Subject: [PATCH] Begain on a SubprocessTest helper.

---
 samples/subprocess.go | 46 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 samples/subprocess.go

diff --git a/samples/subprocess.go b/samples/subprocess.go
new file mode 100644
index 0000000..c3cda3e
--- /dev/null
+++ b/samples/subprocess.go
@@ -0,0 +1,46 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package samples
+
+import (
+	"io"
+
+	"github.com/jacobsa/fuse"
+	"golang.org/x/net/context"
+)
+
+// A struct that implements common behavior needed by tests in the samples/
+// directory where the file system is mounted by a subprocess. Use it as an
+// embedded field in your test fixture, calling its SetUp method from your
+// SetUp method after setting the MountType and MountFlags fields.
+type SubprocessTest struct {
+	// The type of the file system to mount. Must be recognized by mount_sample.
+	MountType string
+
+	// Additional flags to be passed to the mount_sample tool.
+	MountFlags []string
+
+	// A context object that can be used for long-running operations.
+	Ctx context.Context
+
+	// The directory at which the file system is mounted.
+	Dir string
+
+	// Anothing non-nil in this slice will be closed by TearDown. The test will
+	// fail if closing fails.
+	ToClose []io.Closer
+
+	mfs *fuse.MountedFileSystem
+}