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mptdata: add test for MaxArraySize

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This commit adds a single test that covers the
previously uncovered branch in the mptdata
decoding algorithm.

Signed-off-by: Furetur <furetur@gmail.com>
This commit is contained in:
Furetur 2024-07-03 12:48:00 +03:00
parent 0ae5e7ea83
commit 3456d92220
1 changed files with 14 additions and 0 deletions
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14
pkg/network/payload/mptdata_test.go
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@ -21,4 +21,18 @@ func TestMPTData_EncodeDecodeBinary(t *testing.T) {
}
testserdes.EncodeDecodeBinary(t, d, new(MPTData))
})
t.Run("exceeds MaxArraySize", func(t *testing.T) {
bytes := []byte{
// The first byte represents the number 0x1.
// It encodes the size of the outer array (the number or rows in the Nodes matrix).
0x1,
// This sequence of 9 bytes represents the number 0xffffffffffffffff.
// It encodes the size of the first row in the Nodes matrix.
// This size exceeds the maximum array size, thus the decoder should
// return an error.
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
}
require.Error(t, testserdes.DecodeBinary(bytes, new(MPTData)))
})
}