Began on a memfs test.

samples/memfs/memfs_test.go

@@ -0,0 +1,93 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+// Author: jacobsa@google.com (Aaron Jacobs)
+
+package memfs_test
+
+import (
+	"io/ioutil"
+	"log"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/jacobsa/fuse"
+	"github.com/jacobsa/fuse/samples/memfs"
+	"github.com/jacobsa/gcsfuse/timeutil"
+	. "github.com/jacobsa/ogletest"
+	"golang.org/x/net/context"
+)
+
+func TestMemFS(t *testing.T) { RunTests(t) }
+
+////////////////////////////////////////////////////////////////////////
+// Boilerplate
+////////////////////////////////////////////////////////////////////////
+
+type MemFSTest struct {
+	clock timeutil.SimulatedClock
+	mfs   *fuse.MountedFileSystem
+}
+
+var _ SetUpInterface = &MemFSTest{}
+var _ TearDownInterface = &MemFSTest{}
+
+func init() { RegisterTestSuite(&MemFSTest{}) }
+
+func (t *MemFSTest) SetUp(ti *TestInfo) {
+	var err error
+
+	// Set up a fixed, non-zero time.
+	t.clock.SetTime(time.Now())
+
+	// Set up a temporary directory for mounting.
+	mountPoint, err := ioutil.TempDir("", "memfs_test")
+	if err != nil {
+		panic("ioutil.TempDir: " + err.Error())
+	}
+
+	// Mount a file system.
+	fs := memfs.NewMemFS(&t.clock)
+	if t.mfs, err = fuse.Mount(mountPoint, fs); err != nil {
+		panic("Mount: " + err.Error())
+	}
+
+	if err = t.mfs.WaitForReady(context.Background()); err != nil {
+		panic("MountedFileSystem.WaitForReady: " + err.Error())
+	}
+}
+
+func (t *MemFSTest) TearDown() {
+	// Unmount the file system. Try again on "resource busy" errors.
+	delay := 10 * time.Millisecond
+	for {
+		err := t.mfs.Unmount()
+		if err == nil {
+			break
+		}
+
+		if strings.Contains(err.Error(), "resource busy") {
+			log.Println("Resource busy error while unmounting; trying again")
+			time.Sleep(delay)
+			delay = time.Duration(1.3 * float64(delay))
+			continue
+		}
+
+		panic("MountedFileSystem.Unmount: " + err.Error())
+	}
+
+	if err := t.mfs.Join(context.Background()); err != nil {
+		panic("MountedFileSystem.Join: " + err.Error())
+	}
+}
+
+////////////////////////////////////////////////////////////////////////
+// Test functions
+////////////////////////////////////////////////////////////////////////
+
+func (t *MemFSTest) ContentsOfEmptyFileSystem() {
+	AssertTrue(false, "TODO")
+}
+
+func (t *MemFSTest) DoesFoo() {
+	AssertTrue(false, "TODO")
+}