diff options
Diffstat (limited to 'accounts/abi/abi_test.go')
-rw-r--r-- | accounts/abi/abi_test.go | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/accounts/abi/abi_test.go b/accounts/abi/abi_test.go index 79c4d4a16..f2f66986e 100644 --- a/accounts/abi/abi_test.go +++ b/accounts/abi/abi_test.go @@ -18,6 +18,7 @@ package abi import ( "bytes" + "encoding/hex" "fmt" "log" "math/big" @@ -418,3 +419,43 @@ func TestBareEvents(t *testing.T) { } } } + +// TestUnpackEvent is based on this contract: +// contract T { +// event received(address sender, uint amount, bytes memo); +// function receive(bytes memo) external payable { +// received(msg.sender, msg.value, memo); +// } +// } +// When receive("X") is called with sender 0x00... and value 1, it produces this tx receipt: +// receipt{status=1 cgas=23949 bloom=00000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000040200000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 logs=[log: b6818c8064f645cd82d99b59a1a267d6d61117ef [75fd880d39c1daf53b6547ab6cb59451fc6452d27caa90e5b6649dd8293b9eed] 000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158 9ae378b6d4409eada347a5dc0c180f186cb62dc68fcc0f043425eb917335aa28 0 95d429d309bb9d753954195fe2d69bd140b4ae731b9b5b605c34323de162cf00 0]} +func TestUnpackEvent(t *testing.T) { + const abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"receive","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]` + abi, err := JSON(strings.NewReader(abiJSON)) + if err != nil { + t.Fatal(err) + } + + const hexdata = `000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158` + data, err := hex.DecodeString(hexdata) + if err != nil { + t.Fatal(err) + } + if len(data)%32 == 0 { + t.Errorf("len(data) is %d, want a non-multiple of 32", len(data)) + } + + type ReceivedEvent struct { + Address common.Address + Amount *big.Int + Memo []byte + } + var ev ReceivedEvent + + err = abi.Unpack(&ev, "received", data) + if err != nil { + t.Error(err) + } else { + t.Logf("len(data): %d; received event: %+v", len(data), ev) + } +} |