2015-05-04 09:34:11 +03:00
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// Copyright 2015 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package interruptfs_test
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import (
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"os"
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"os/exec"
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2015-05-04 09:34:11 +03:00
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"path"
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2015-05-04 14:51:57 +03:00
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"sync"
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2015-05-04 09:34:11 +03:00
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"testing"
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2015-05-04 14:51:57 +03:00
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"time"
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2015-05-04 09:34:11 +03:00
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"github.com/jacobsa/fuse/fuseutil"
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"github.com/jacobsa/fuse/samples"
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"github.com/jacobsa/fuse/samples/interruptfs"
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. "github.com/jacobsa/ogletest"
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)
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func TestInterruptFS(t *testing.T) { RunTests(t) }
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////////////////////////////////////////////////////////////////////////
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// Boilerplate
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////////////////////////////////////////////////////////////////////////
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type InterruptFSTest struct {
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samples.SampleTest
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fs *interruptfs.InterruptFS
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}
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func init() { RegisterTestSuite(&InterruptFSTest{}) }
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var _ SetUpInterface = &InterruptFSTest{}
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var _ TearDownInterface = &InterruptFSTest{}
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func (t *InterruptFSTest) SetUp(ti *TestInfo) {
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var err error
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// Create the file system.
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t.fs = interruptfs.New()
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AssertEq(nil, err)
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t.Server = fuseutil.NewFileSystemServer(t.fs)
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// Mount it.
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t.SampleTest.SetUp(ti)
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}
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////////////////////////////////////////////////////////////////////////
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// Test functions
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////////////////////////////////////////////////////////////////////////
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func (t *InterruptFSTest) StatFoo() {
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fi, err := os.Stat(path.Join(t.Dir, "foo"))
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AssertEq(nil, err)
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ExpectEq("foo", fi.Name())
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ExpectEq(0777, fi.Mode())
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ExpectFalse(fi.IsDir())
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}
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func (t *InterruptFSTest) InterruptedDuringRead() {
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// Start a sub-process that attempts to read the file. Wait for it in the
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// background.
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cmd := exec.Command("cat", path.Join(t.Dir, "foo"))
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var cmdOutput []byte
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var cmdErr error
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var mu sync.Mutex
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cmdFinished := false
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cmdFinishedChanged := sync.NewCond(&mu)
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go func() {
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cmdOutput, cmdErr = cmd.CombinedOutput()
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mu.Lock()
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cmdFinished = true
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cmdFinishedChanged.Broadcast()
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mu.Unlock()
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}()
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// Wait for the read to make it to the file system.
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t.fs.WaitForReadInFlight()
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// Wait another moment. The command should still be hanging.
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time.Sleep(100 * time.Millisecond)
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func() {
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mu.Lock()
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defer mu.Unlock()
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AssertFalse(cmdFinished)
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}()
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// Send SIGINT.
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cmd.Process.Signal(os.Interrupt)
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// Now the command should return, with an appropriate error.
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mu.Lock()
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for !cmdFinished {
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cmdFinishedChanged.Wait()
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}
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mu.Unlock()
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2015-05-04 09:34:11 +03:00
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AssertTrue(false, "TODO")
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}
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