github.com/chike0905/go-ethereum@v1.9.7/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  	"os/exec"
    21  	"testing"
    22  )
    23  
    24  const (
    25  	testSource = `
    26  pragma solidity >0.0.0;
    27  contract test {
    28     /// @notice Will multiply ` + "`a`" + ` by 7.
    29     function multiply(uint a) public returns(uint d) {
    30         return a * 7;
    31     }
    32  }
    33  `
    34  )
    35  
    36  func skipWithoutSolc(t *testing.T) {
    37  	if _, err := exec.LookPath("solc"); err != nil {
    38  		t.Skip(err)
    39  	}
    40  }
    41  
    42  func TestSolidityCompiler(t *testing.T) {
    43  	skipWithoutSolc(t)
    44  
    45  	contracts, err := CompileSolidityString("", testSource)
    46  	if err != nil {
    47  		t.Fatalf("error compiling source. result %v: %v", contracts, err)
    48  	}
    49  	if len(contracts) != 1 {
    50  		t.Errorf("one contract expected, got %d", len(contracts))
    51  	}
    52  	c, ok := contracts["test"]
    53  	if !ok {
    54  		c, ok = contracts["<stdin>:test"]
    55  		if !ok {
    56  			t.Fatal("info for contract 'test' not present in result")
    57  		}
    58  	}
    59  	if c.Code == "" {
    60  		t.Error("empty code")
    61  	}
    62  	if c.Info.Source != testSource {
    63  		t.Error("wrong source")
    64  	}
    65  	if c.Info.CompilerVersion == "" {
    66  		t.Error("empty version")
    67  	}
    68  }
    69  
    70  func TestSolidityCompileError(t *testing.T) {
    71  	skipWithoutSolc(t)
    72  
    73  	contracts, err := CompileSolidityString("", testSource[4:])
    74  	if err == nil {
    75  		t.Errorf("error expected compiling source. got none. result %v", contracts)
    76  	}
    77  	t.Logf("error: %v", err)
    78  }