plugeth/common/compiler/solidity_test.go
Felix Lange 1a9e66915b common/compiler: simplify solc wrapper
Support for legacy version 0.9.x is gone. The compiler version is no
longer cached. Compilation results (and the version) are read directly
from stdout using the --combined-json flag. As a workaround for
ethereum/solidity#651, source code is written to a temporary file before
compilation.

Integration of solc in package ethapi and cmd/abigen is now much simpler
because the compiler wrapper is no longer passed around as a pointer.

Fixes #2806, accidentally
2016-08-17 17:39:04 +02:00

111 lines
3.8 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 (
"encoding/json"
"io/ioutil"
"os"
"path"
"testing"
"github.com/ethereum/go-ethereum/common"
)
const (
supportedSolcVersion = "0.3.5"
testSource = `
contract test {
/// @notice Will multiply ` + "`a`" + ` by 7.
function multiply(uint a) returns(uint d) {
return a * 7;
}
}
`
testCode = "0x6060604052602a8060106000396000f3606060405260e060020a6000350463c6888fa18114601a575b005b6007600435026060908152602090f3"
testInfo = `{"source":"\ncontract test {\n /// @notice Will multiply ` + "`a`" + ` by 7.\n function multiply(uint a) returns(uint d) {\n return a * 7;\n }\n}\n","language":"Solidity","languageVersion":"0.1.1","compilerVersion":"0.1.1","compilerOptions":"--binary file --json-abi file --natspec-user file --natspec-dev file --add-std 1","abiDefinition":[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}],"userDoc":{"methods":{"multiply(uint256)":{"notice":"Will multiply ` + "`a`" + ` by 7."}}},"developerDoc":{"methods":{}}}`
)
func skipUnsupported(t *testing.T) {
sol, err := SolidityVersion("")
if err != nil {
t.Skip(err)
return
}
if sol.Version != supportedSolcVersion {
t.Skipf("unsupported version of solc found (%v, expect %v)", sol.Version, supportedSolcVersion)
}
}
func TestCompiler(t *testing.T) {
skipUnsupported(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 {
t.Fatal("info for contract 'test' not present in result")
}
if c.Code != testCode {
t.Errorf("wrong code: expected\n%s, got\n%s", testCode, c.Code)
}
if c.Info.Source != testSource {
t.Error("wrong source")
}
if c.Info.CompilerVersion != supportedSolcVersion {
t.Errorf("wrong version: expected %q, got %q", supportedSolcVersion, c.Info.CompilerVersion)
}
}
func TestCompileError(t *testing.T) {
skipUnsupported(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 TestSaveInfo(t *testing.T) {
var cinfo ContractInfo
err := json.Unmarshal([]byte(testInfo), &cinfo)
if err != nil {
t.Errorf("%v", err)
}
filename := path.Join(os.TempDir(), "solctest.info.json")
os.Remove(filename)
cinfohash, err := SaveInfo(&cinfo, filename)
if err != nil {
t.Errorf("error extracting info: %v", err)
}
got, err := ioutil.ReadFile(filename)
if err != nil {
t.Errorf("error reading '%v': %v", filename, err)
}
if string(got) != testInfo {
t.Errorf("incorrect info.json extracted, expected:\n%s\ngot\n%s", testInfo, string(got))
}
wantHash := common.HexToHash("0x9f3803735e7f16120c5a140ab3f02121fd3533a9655c69b33a10e78752cc49b0")
if cinfohash != wantHash {
t.Errorf("content hash for info is incorrect. expected %v, got %v", wantHash.Hex(), cinfohash.Hex())
}
}