PageCacheTest.TwoFileHandles_NoKeepCache
parent
93388be731
commit
454f3959f7
|
@ -614,7 +614,60 @@ func (t *PageCacheTest) SingleFileHandle_KeepCache() {
|
||||||
}
|
}
|
||||||
|
|
||||||
func (t *PageCacheTest) TwoFileHandles_NoKeepCache() {
|
func (t *PageCacheTest) TwoFileHandles_NoKeepCache() {
|
||||||
AssertTrue(false, "TODO")
|
t.fs.SetKeepCache(false)
|
||||||
|
|
||||||
|
// Open the file.
|
||||||
|
f1, err := os.Open(path.Join(t.Dir, "foo"))
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
defer f1.Close()
|
||||||
|
|
||||||
|
// Read its contents once.
|
||||||
|
f1.Seek(0, 0)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
c1, err := ioutil.ReadAll(f1)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
AssertEq(cachingfs.FooSize, len(c1))
|
||||||
|
|
||||||
|
// Open a second handle.
|
||||||
|
f2, err := os.Open(path.Join(t.Dir, "foo"))
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
defer f2.Close()
|
||||||
|
|
||||||
|
// We should see different contents if we read from that handle, due to the
|
||||||
|
// cache being invalidated at the time of opening.
|
||||||
|
f2.Seek(0, 0)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
c2, err := ioutil.ReadAll(f2)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
AssertEq(cachingfs.FooSize, len(c2))
|
||||||
|
|
||||||
|
ExpectFalse(bytes.Equal(c1, c2))
|
||||||
|
|
||||||
|
// Another read from the second handle should give the same result as the
|
||||||
|
// first one from that handle.
|
||||||
|
f2.Seek(0, 0)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
c3, err := ioutil.ReadAll(f2)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
AssertEq(cachingfs.FooSize, len(c3))
|
||||||
|
|
||||||
|
ExpectTrue(bytes.Equal(c2, c3))
|
||||||
|
|
||||||
|
// And another read from the first handle should give the same result yet
|
||||||
|
// again.
|
||||||
|
f1.Seek(0, 0)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
|
||||||
|
c4, err := ioutil.ReadAll(f1)
|
||||||
|
AssertEq(nil, err)
|
||||||
|
AssertEq(cachingfs.FooSize, len(c4))
|
||||||
|
|
||||||
|
ExpectTrue(bytes.Equal(c2, c4))
|
||||||
}
|
}
|
||||||
|
|
||||||
func (t *PageCacheTest) TwoFileHandles_KeepCache() {
|
func (t *PageCacheTest) TwoFileHandles_KeepCache() {
|
||||||
|
|
Loading…
Reference in New Issue