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abi/event: confirm decoding tuples works #278

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Jun 23, 2024
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abi/event: confirm decoding tuples works #278

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94 changes: 66 additions & 28 deletions spec/eth/abi/event_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -136,35 +136,73 @@
]
expect(kwargs[:values]).to eq [1, 1]
end
end

it "can decode anonymous Transfer event" do
interface = {
"type" => "event",
"name" => "Transfer",
"anonymous" => true,
"inputs" => [
{ "indexed" => true, "internalType" => "address", "name" => "from", "type" => "address" },
{ "indexed" => true, "internalType" => "address", "name" => "to", "type" => "address" },
{ "indexed" => false, "internalType" => "uint256", "name" => "value", "type" => "uint256" },
],
}

data = "0x00000000000000000000000000000000000000000000000000000002540be400"
topics = [
"0x00000000000000000000000071660c4005ba85c37ccec55d0c4493e66fe775d3",
"0x000000000000000000000000639671019ddd8ec28d35113d8d1c5f1bbfd7e0be",
]

args, kwargs = Abi::Event.decode_log(interface["inputs"], data, topics, true)

expect(args[0]).to eq "0x71660c4005ba85c37ccec55d0c4493e66fe775d3"
expect(args[1]).to eq "0x639671019ddd8ec28d35113d8d1c5f1bbfd7e0be"
expect(args[2]).to eq 10000000000

expect(kwargs[:from]).to eq "0x71660c4005ba85c37ccec55d0c4493e66fe775d3"
expect(kwargs[:to]).to eq "0x639671019ddd8ec28d35113d8d1c5f1bbfd7e0be"
expect(kwargs[:value]).to eq 10000000000
it "can decode anonymous Transfer event" do
interface = {
"type" => "event",
"name" => "Transfer",
"anonymous" => true,
"inputs" => [
{ "indexed" => true, "internalType" => "address", "name" => "from", "type" => "address" },
{ "indexed" => true, "internalType" => "address", "name" => "to", "type" => "address" },
{ "indexed" => false, "internalType" => "uint256", "name" => "value", "type" => "uint256" },
],
}

data = "0x00000000000000000000000000000000000000000000000000000002540be400"
topics = [
"0x00000000000000000000000071660c4005ba85c37ccec55d0c4493e66fe775d3",
"0x000000000000000000000000639671019ddd8ec28d35113d8d1c5f1bbfd7e0be",
]

args, kwargs = Abi::Event.decode_log(interface["inputs"], data, topics, true)

expect(args[0]).to eq "0x71660c4005ba85c37ccec55d0c4493e66fe775d3"
expect(args[1]).to eq "0x639671019ddd8ec28d35113d8d1c5f1bbfd7e0be"
expect(args[2]).to eq 10000000000

expect(kwargs[:from]).to eq "0x71660c4005ba85c37ccec55d0c4493e66fe775d3"
expect(kwargs[:to]).to eq "0x639671019ddd8ec28d35113d8d1c5f1bbfd7e0be"
expect(kwargs[:value]).to eq 10000000000
end

it "can decode wuminzhe's log" do
# https://github.com/q9f/eth.rb/issues/247
abi = JSON.parse '[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"msgHash","type":"bytes32"},{"indexed":false,"internalType":"bytes32","name":"root","type":"bytes32"},{"components":[{"internalType":"address","name":"channel","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"uint256","name":"fromChainId","type":"uint256"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"toChainId","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"encoded","type":"bytes"}],"indexed":false,"internalType":"structMessage","name":"message","type":"tuple"}],"name":"MessageAccepted","type":"event"}]'
log = {
"address" => "0x0000000000bd9dcfda5c60697039e2b3b28b079b",
"blockHash" => "0xf9c70715305172f0d7ae0e335c38df5582c6138d96b742183c02a69ff3c11304",
"blockNumber" => "0xddcb4d",
"data" => "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",
"logIndex" => "0xcd",
"removed" => false,
"topics" => [
"0xa047cf3271a6e55d76e7706ca90d011a4f2f641f7c46dfd31f6abe4cd94db53f",
"0xf654c17ea89108d7183eaf31c762fe0c125d476aa8130938d8a1895307b7db5a",
],
"transactionHash" => "0x215e05a6260a5fbca5ebf866bf8612868c50691e0ff24be54f96f8192ca9b968",
"transactionIndex" => "0x8c",
}
int = abi.find { |i| i["type"] == "event" && i["name"] == "MessageAccepted" }
args, kwargs = Abi::Event.decode_log(int["inputs"], log["data"], log["topics"])

expect(args[0]).to eq "\xF6T\xC1~\xA8\x91\b\xD7\x18>\xAF1\xC7b\xFE\f\x12]Gj\xA8\x13\t8\xD8\xA1\x89S\a\xB7\xDBZ"
expect(args[1]).to eq "\xFC*\a\xBA\xE9\xB7]Z\x81z\xA5\xFFu-&=!2\x86\xDD\xA4\x83\x87\xA2\xE8\x18\x81OEW\xD6\x12"
expect(args[2]["channel"]).to eq "0x0000000000bd9dcfda5c60697039e2b3b28b079b"
expect(args[2]["index"]).to eq 1
expect(args[2]["fromChainId"]).to eq 421613
expect(args[2]["from"]).to eq "0x0f14341a7f464320319025540e8fe48ad0fe5aec"
expect(args[2]["toChainId"]).to eq 43
expect(args[2]["to"]).to eq "0x0000000000bd9dcfda5c60697039e2b3b28b079b"
expect(kwargs[:msgHash]).to eq "\xF6T\xC1~\xA8\x91\b\xD7\x18>\xAF1\xC7b\xFE\f\x12]Gj\xA8\x13\t8\xD8\xA1\x89S\a\xB7\xDBZ"
expect(kwargs[:root]).to eq "\xFC*\a\xBA\xE9\xB7]Z\x81z\xA5\xFFu-&=!2\x86\xDD\xA4\x83\x87\xA2\xE8\x18\x81OEW\xD6\x12"
expect(kwargs[:message]["channel"]).to eq "0x0000000000bd9dcfda5c60697039e2b3b28b079b"
expect(kwargs[:message]["index"]).to eq 1
expect(kwargs[:message]["fromChainId"]).to eq 421613
expect(kwargs[:message]["from"]).to eq "0x0f14341a7f464320319025540e8fe48ad0fe5aec"
expect(kwargs[:message]["toChainId"]).to eq 43
expect(kwargs[:message]["to"]).to eq "0x0000000000bd9dcfda5c60697039e2b3b28b079b"
end
end

describe ".decode_logs" do
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