PageCacheTest.TwoFileHandles_KeepCache
parent
454f3959f7
commit
04dad40a08
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@ -671,5 +671,45 @@ func (t *PageCacheTest) TwoFileHandles_NoKeepCache() {
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}
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func (t *PageCacheTest) TwoFileHandles_KeepCache() {
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AssertTrue(false, "TODO")
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t.fs.SetKeepCache(true)
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// Open the file.
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f1, err := os.Open(path.Join(t.Dir, "foo"))
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AssertEq(nil, err)
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defer f1.Close()
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// Read its contents once.
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f1.Seek(0, 0)
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AssertEq(nil, err)
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c1, err := ioutil.ReadAll(f1)
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AssertEq(nil, err)
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AssertEq(cachingfs.FooSize, len(c1))
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// Open a second handle.
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f2, err := os.Open(path.Join(t.Dir, "foo"))
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AssertEq(nil, err)
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defer f2.Close()
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// We should see the same contents when we read via the second handle.
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f2.Seek(0, 0)
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AssertEq(nil, err)
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c2, err := ioutil.ReadAll(f2)
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AssertEq(nil, err)
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AssertEq(cachingfs.FooSize, len(c2))
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ExpectTrue(bytes.Equal(c1, c2))
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// Ditto if we read again from the first.
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f1.Seek(0, 0)
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AssertEq(nil, err)
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c3, err := ioutil.ReadAll(f1)
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AssertEq(nil, err)
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AssertEq(cachingfs.FooSize, len(c3))
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ExpectTrue(bytes.Equal(c1, c3))
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}
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