github.com/jeffallen/go-ethereum@v1.1.4-0.20150910155051-571d3236c49c/common/compiler/solidity_test.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package compiler
    18  
    19  import (
    20  	"encoding/json"
    21  	"io/ioutil"
    22  	"os"
    23  	"path"
    24  	"testing"
    25  
    26  	"github.com/ethereum/go-ethereum/common"
    27  )
    28  
    29  const solcVersion = "0.9.23"
    30  
    31  var (
    32  	source = `
    33  contract test {
    34     /// @notice Will multiply ` + "`a`" + ` by 7.
    35     function multiply(uint a) returns(uint d) {
    36         return a * 7;
    37     }
    38  }
    39  `
    40  	code = "0x605880600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b603d6004803590602001506047565b8060005260206000f35b60006007820290506053565b91905056"
    41  	info = `{"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","compilerVersion":"0.9.23","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":{}}}`
    42  
    43  	infohash = common.HexToHash("0xea782f674eb898e477c20e8a7cf11c2c28b09fa68b5278732104f7a101aed255")
    44  )
    45  
    46  func TestCompiler(t *testing.T) {
    47  	sol, err := New("")
    48  	if err != nil {
    49  		t.Skip("solc not found: skip")
    50  	} else if sol.Version() != solcVersion {
    51  		t.Skip("WARNING: skipping due to a newer version of solc found (%v, expect %v)", sol.Version(), solcVersion)
    52  	}
    53  	contracts, err := sol.Compile(source)
    54  	if err != nil {
    55  		t.Errorf("error compiling source. result %v: %v", contracts, err)
    56  		return
    57  	}
    58  
    59  	if len(contracts) != 1 {
    60  		t.Errorf("one contract expected, got\n%s", len(contracts))
    61  	}
    62  
    63  	if contracts["test"].Code != code {
    64  		t.Errorf("wrong code, expected\n%s, got\n%s", code, contracts["test"].Code)
    65  	}
    66  
    67  }
    68  
    69  func TestCompileError(t *testing.T) {
    70  	sol, err := New("")
    71  	if err != nil || sol.version != solcVersion {
    72  		t.Skip("solc not found: skip")
    73  	} else if sol.Version() != solcVersion {
    74  		t.Skip("WARNING: skipping due to a newer version of solc found (%v, expect %v)", sol.Version(), solcVersion)
    75  	}
    76  	contracts, err := sol.Compile(source[2:])
    77  	if err == nil {
    78  		t.Errorf("error expected compiling source. got none. result %v", contracts)
    79  		return
    80  	}
    81  }
    82  
    83  func TestNoCompiler(t *testing.T) {
    84  	_, err := New("/path/to/solc")
    85  	if err != nil {
    86  		t.Log("solidity quits with error: %v", err)
    87  	} else {
    88  		t.Errorf("no solc installed, but got no error")
    89  	}
    90  }
    91  
    92  func TestSaveInfo(t *testing.T) {
    93  	var cinfo ContractInfo
    94  	err := json.Unmarshal([]byte(info), &cinfo)
    95  	if err != nil {
    96  		t.Errorf("%v", err)
    97  	}
    98  	filename := path.Join(os.TempDir(), "solctest.info.json")
    99  	os.Remove(filename)
   100  	cinfohash, err := SaveInfo(&cinfo, filename)
   101  	if err != nil {
   102  		t.Errorf("error extracting info: %v", err)
   103  	}
   104  	got, err := ioutil.ReadFile(filename)
   105  	if err != nil {
   106  		t.Errorf("error reading '%v': %v", filename, err)
   107  	}
   108  	if string(got) != info {
   109  		t.Errorf("incorrect info.json extracted, expected:\n%s\ngot\n%s", info, string(got))
   110  	}
   111  	if cinfohash != infohash {
   112  		t.Errorf("content hash for info is incorrect. expected %v, got %v", infohash.Hex(), cinfohash.Hex())
   113  	}
   114  }