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- // Copyright 2018 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package abi
- import (
- "strings"
- "testing"
- )
- const methoddata = `
- [
- {"type": "function", "name": "balance", "stateMutability": "view"},
- {"type": "function", "name": "send", "inputs": [{ "name": "amount", "type": "uint256" }]},
- {"type": "function", "name": "transfer", "inputs": [{"name": "from", "type": "address"}, {"name": "to", "type": "address"}, {"name": "value", "type": "uint256"}], "outputs": [{"name": "success", "type": "bool"}]},
- {"constant":false,"inputs":[{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"a","type":"tuple"}],"name":"tuple","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},
- {"constant":false,"inputs":[{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"a","type":"tuple[]"}],"name":"tupleSlice","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},
- {"constant":false,"inputs":[{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"a","type":"tuple[5]"}],"name":"tupleArray","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},
- {"constant":false,"inputs":[{"components":[{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}],"name":"a","type":"tuple[5][]"}],"name":"complexTuple","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},
- {"stateMutability":"nonpayable","type":"fallback"},
- {"stateMutability":"payable","type":"receive"}
- ]`
- func TestMethodString(t *testing.T) {
- var table = []struct {
- method string
- expectation string
- }{
- {
- method: "balance",
- expectation: "function balance() view returns()",
- },
- {
- method: "send",
- expectation: "function send(uint256 amount) returns()",
- },
- {
- method: "transfer",
- expectation: "function transfer(address from, address to, uint256 value) returns(bool success)",
- },
- {
- method: "tuple",
- expectation: "function tuple((uint256,uint256) a) returns()",
- },
- {
- method: "tupleArray",
- expectation: "function tupleArray((uint256,uint256)[5] a) returns()",
- },
- {
- method: "tupleSlice",
- expectation: "function tupleSlice((uint256,uint256)[] a) returns()",
- },
- {
- method: "complexTuple",
- expectation: "function complexTuple((uint256,uint256)[5][] a) returns()",
- },
- {
- method: "fallback",
- expectation: "fallback() returns()",
- },
- {
- method: "receive",
- expectation: "receive() payable returns()",
- },
- }
- abi, err := JSON(strings.NewReader(methoddata))
- if err != nil {
- t.Fatal(err)
- }
- for _, test := range table {
- var got string
- if test.method == "fallback" {
- got = abi.Fallback.String()
- } else if test.method == "receive" {
- got = abi.Receive.String()
- } else {
- got = abi.Methods[test.method].String()
- }
- if got != test.expectation {
- t.Errorf("expected string to be %s, got %s", test.expectation, got)
- }
- }
- }
- func TestMethodSig(t *testing.T) {
- var cases = []struct {
- method string
- expect string
- }{
- {
- method: "balance",
- expect: "balance()",
- },
- {
- method: "send",
- expect: "send(uint256)",
- },
- {
- method: "transfer",
- expect: "transfer(address,address,uint256)",
- },
- {
- method: "tuple",
- expect: "tuple((uint256,uint256))",
- },
- {
- method: "tupleArray",
- expect: "tupleArray((uint256,uint256)[5])",
- },
- {
- method: "tupleSlice",
- expect: "tupleSlice((uint256,uint256)[])",
- },
- {
- method: "complexTuple",
- expect: "complexTuple((uint256,uint256)[5][])",
- },
- }
- abi, err := JSON(strings.NewReader(methoddata))
- if err != nil {
- t.Fatal(err)
- }
- for _, test := range cases {
- got := abi.Methods[test.method].Sig
- if got != test.expect {
- t.Errorf("expected string to be %s, got %s", test.expect, got)
- }
- }
- }
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