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corrupt-repo-ref.js: more aggressive file corruption

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changing only a byte may not generate a corrupted file, so play very
safe and change 10 bytes.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2014-10-22 19:52:12 +02:00
parent 0785c398b0
commit 49de180191
1 changed files with 16 additions and 7 deletions
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23
tests/corrupt-repo-ref.js
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@ -72,17 +72,26 @@ let loosePath = repo.get_path().resolve_relative_path('objects/' + objectToCorru
let iostream = loosePath.open_readwrite(null);
let info = iostream.query_info('standard::size', null);
let size = info.get_size();
let byteOffsetToCorrupt = GLib.random_int_range(0, size);
iostream.seek(byteOffsetToCorrupt, GLib.SeekType.SET, null);
let datain = Gio.DataInputStream.new(iostream.get_input_stream());
let dataout = Gio.DataOutputStream.new(iostream.get_output_stream());
let inbyte = datain.read_byte(null);
let outbyte = (inbyte + 1) % 255;
dataout.put_byte(outbyte, null);
let bytesToChange = 10;
let status = "";
var bytesChanged = {}
for (i = 0; i < bytesToChange; i++) {
let byteOffsetToCorrupt;
do {
byteOffsetToCorrupt = GLib.random_int_range(0, size);
} while (byteOffsetToCorrupt in bytesChanged);
iostream.seek(byteOffsetToCorrupt, GLib.SeekType.SET, null);
let inbyte = datain.read_byte(null);
let outbyte = (inbyte + 1) % 255;
dataout.put_byte(outbyte, null);
bytesChanged[byteOffsetToCorrupt] = byteOffsetToCorrupt;
status += "Changed byte offset " + byteOffsetToCorrupt + " from " + inbyte + " to " + outbyte + "\n";
}
dataout.flush(null);
iostream.close(null);
let status = "Changed byte offset " + byteOffsetToCorrupt + " from " + inbyte + " to " + outbyte;
print(status);
print(status);
let successFile = Gio.File.new_for_path('corrupted-status.txt');
successFile.replace_contents(status, null, false, 0, null);