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rbd/tests: check for io.EOF while testing Read()

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Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos 2020-01-22 17:04:37 +01:00
parent 522182cbc3
commit 030eaaa548
1 changed files with 29 additions and 0 deletions
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29
rbd/rbd_test.go
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@ -569,6 +569,35 @@ func TestIOReaderWriter(t *testing.T) {
assert.Equal(t, n_out, len(bytes_in))
assert.Equal(t, bytes_in, bytes_out)
// write some data at the end of the image
offset := int64(stats.Size) - int64(len(bytes_in))
_, err = img.Seek(offset, SeekSet)
assert.NoError(t, err)
n_out, err = img.Write(bytes_in)
assert.Equal(t, len(bytes_in), n_out)
assert.NoError(t, err)
_, err = img.Seek(offset, SeekSet)
assert.NoError(t, err)
bytes_out = make([]byte, len(bytes_in))
n_out, err = img.Read(bytes_out)
assert.Equal(t, n_out, len(bytes_in))
assert.Equal(t, bytes_in, bytes_out)
assert.NoError(t, err)
// reading after EOF (needs to be large enough to hit EOF)
_, err = img.Seek(offset, SeekSet)
assert.NoError(t, err)
bytes_in = make([]byte, len(bytes_out)+256)
n_out, err = img.Read(bytes_in)
assert.Equal(t, n_out, len(bytes_out))
assert.Equal(t, bytes_in[0:len(bytes_out)], bytes_out)
assert.Equal(t, io.EOF, err)
err = img.Close()
assert.NoError(t, err)