go-ethereum/common/compiler/solidity_test.go
2017-08-15 11:26:13 -05:00

130 lines
3.1 KiB
Go

// Copyright 2015 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 compiler
import (
"os/exec"
"strings"
"testing"
)
const (
testSource = `
contract test {
/// @notice Will multiply ` + "`a`" + ` by 7.
function multiply(uint a) returns(uint d) {
return a * 7;
}
}
`
librarySource = `
library Set {
struct Data { mapping(uint => bool) flags; }
function insert(Data storage self, uint value)
returns (bool)
{
if (self.flags[value])
return false; // already there
self.flags[value] = true;
return true;
}
function remove(Data storage self, uint value)
returns (bool)
{
if (!self.flags[value])
return false; // not there
self.flags[value] = false;
return true;
}
function contains(Data storage self, uint value)
returns (bool)
{
return self.flags[value];
}
}
contract C {
Set.Data knownValues;
function register(uint value) {
require(Set.insert(knownValues, value));
}
}`
)
func skipWithoutSolc(t *testing.T) {
if _, err := exec.LookPath("solc"); err != nil {
t.Skip(err)
}
}
func TestCompiler(t *testing.T) {
skipWithoutSolc(t)
contracts, err := CompileSolidityString("", testSource)
if err != nil {
t.Fatalf("error compiling source. result %v: %v", contracts, err)
}
if len(contracts) != 1 {
t.Errorf("one contract expected, got %d", len(contracts))
}
c, ok := contracts["test"]
if !ok {
c, ok = contracts["<stdin>:test"]
if !ok {
t.Fatal("info for contract 'test' not present in result")
}
}
if c.Code == "" {
t.Error("empty code")
}
if c.Info.Source != testSource {
t.Error("wrong source")
}
if c.Info.CompilerVersion == "" {
t.Error("empty version")
}
}
func TestCompileError(t *testing.T) {
skipWithoutSolc(t)
contracts, err := CompileSolidityString("", testSource[4:])
if err == nil {
t.Errorf("error expected compiling source. got none. result %v", contracts)
}
t.Logf("error: %v", err)
}
func TestCompilerLinking(t *testing.T) {
skipWithoutSolc(t)
solc, err := SolidityVersion("")
if err != nil {
t.Fatalf("%v", err)
}
solc.FlagOpts.ToLink = append(solc.FlagOpts.ToLink, "Set:0x692a70d2e424a56d2c6c27aa97d1a86395877b3a")
linkedLibraries := solc.linkLibraries()
testingCase1 := "--libraries Set:0x692a70d2e424a56d2c6c27aa97d1a86395877b3a"
if strings.Compare(linkedLibraries, testingCase1) != 0 {
t.Errorf("expected %v, got %v", linkedLibraries, testingCase1)
}
}