path: root/accounts/abi/method_test.go

// Copyright 2016 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", "constant" : true },
    { "type" : "function", "name" : "send", "constant" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] },
    { "type" : "function", "name" : "transfer", "constant" : false, "inputs" : [ { "name" : "from", "type" : "address" }, { "name" : "to", "type" : "address" }, { "name" : "value", "type" : "uint256" } ], "outputs" : [ { "name" : "success", "type" : "bool" } ]  }
]`

func TestMethodString(t *testing.T) {
    var table = []struct {
        method      string
        expectation string
    }{
        {
            method:      "balance",
            expectation: "function balance() constant returns()",
        },
        {
            method:      "send",
            expectation: "function send(uint256 amount) returns()",
        },
        {
            method:      "transfer",
            expectation: "function transfer(address from, address to, uint256 value) returns(bool success)",
        },
    }

    abi, err := JSON(strings.NewReader(methoddata))
    if err != nil {
        t.Fatal(err)
    }

    for _, test := range table {
        got := abi.Methods[test.method].String()
        if got != test.expectation {
            t.Errorf("expected string to be %s, got %s", test.expectation, got)
        }
    }
}