func (*multiReaderSeekerSuite) TestSeekCur(c *gc.C) {
parts := []string{
"one",
"two",
"three",
"four",
}
all := strings.Join(parts, "")
for off := int64(0); off <= int64(len(all)); off++ {
for newOff := int64(0); newOff <= int64(len(all)); newOff++ {
readers := make([]io.ReadSeeker, len(parts))
for i, part := range parts {
readers[i] = strings.NewReader(part)
}
r := utils.NewMultiReaderSeeker(readers...)
gotOff, err := r.Seek(off, 0)
c.Assert(gotOff, gc.Equals, off)
c.Assert(err, jc.ErrorIsNil)
diff := newOff - off
gotNewOff, err := r.Seek(diff, 1)
c.Assert(err, gc.IsNil)
c.Assert(gotNewOff, gc.Equals, newOff)
data, err := ioutil.ReadAll(r)
c.Assert(err, gc.IsNil)
c.Assert(string(data), gc.Equals, all[newOff:])
}
}
}
func newMultiStringReader(parts []string) io.ReadSeeker {
readers := make([]io.ReadSeeker, len(parts))
for i, part := range parts {
readers[i] = strings.NewReader(part)
}
return utils.NewMultiReaderSeeker(readers...)
}
