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package zipfs
import (
"archive/zip"
"io"
"testing"
)
func TestFileRead(t *testing.T) {
zrc, err := zip.OpenReader("testdata/small.zip")
if err != nil {
t.Fatal(err)
}
zfs := New(&zrc.Reader)
f, err := zfs.Open("smallFile")
if err != nil {
t.Fatal(err)
}
info, err := f.Stat()
if err != nil {
t.Fatal(err)
}
chunkSize := info.Size() * 2 // read with extra large buffer
buf := make([]byte, chunkSize)
n, err := f.Read(buf)
if err != io.EOF {
t.Fatal("Failed to read file to completion:", err)
}
if n != int(info.Size()) {
t.Errorf("Expected read length to be %d, found: %d", info.Size(), n)
}
// read a second time to check f.offset and f.buf are correct
buf = make([]byte, chunkSize)
n, err = f.Read(buf)
if err != io.EOF {
t.Fatal("Failed to read a fully read file:", err)
}
if n != 0 {
t.Errorf("Expected read length to be 0, found: %d", n)
}
}
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