path: root/common/compiler/solidity_test.go

package compiler

import (
    "encoding/json"
    "io/ioutil"
    "os"
    "testing"

    "github.com/ethereum/go-ethereum/common"
)

const solcVersion = "0.9.17"

var (
    source = `
contract test {
   /// @notice Will multiply ` + "`a`" + ` by 7.
   function multiply(uint a) returns(uint d) {
       return a * 7;
   }
}
`
    code = "605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056"
    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":"0.9.17","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":{}}}`

    infohash = common.HexToHash("0x834075768a68e500e459b9c3213750c84de3df47156500cb01bb664d3f88c60a")
)

func TestCompiler(t *testing.T) {
    sol, err := New("")
    if err != nil {
        t.Skip("no solc installed")
    }
    contract, err := sol.Compile(source)
    if err != nil {
        t.Errorf("error compiling source. result %v: %v", contract, err)
        return
    }
    /*
        if contract.Code != code {
            t.Errorf("wrong code, expected\n%s, got\n%s", code, contract.Code)
        }
    */
}

func TestCompileError(t *testing.T) {
    sol, err := New("")
    if err != nil || sol.version != solcVersion {
        t.Skip("no solc installed")
    }
    contract, err := sol.Compile(source[2:])
    if err == nil {
        t.Errorf("error expected compiling source. got none. result %v", contract)
        return
    }
}

func TestNoCompiler(t *testing.T) {
    _, err := New("/path/to/solc")
    if err != nil {
        t.Log("solidity quits with error: %v", err)
    } else {
        t.Errorf("no solc installed, but got no error")
    }
}

func TestExtractInfo(t *testing.T) {
    var cinfo ContractInfo
    err := json.Unmarshal([]byte(info), &cinfo)
    if err != nil {
        t.Errorf("%v", err)
    }
    contract := &Contract{
        Code: "",
        Info: cinfo,
    }
    filename := "/tmp/solctest.info.json"
    os.Remove(filename)
    cinfohash, err := ExtractInfo(contract, filename)
    if err != nil {
        t.Errorf("%v", err)
    }
    got, err := ioutil.ReadFile(filename)
    if err != nil {
        t.Errorf("%v", err)
    }
    if string(got) != info {
        t.Errorf("incorrect info.json extracted, expected:\n%s\ngot\n%s", info, string(got))
    }
    if cinfohash != infohash {
        t.Errorf("content hash for info is incorrect. expected %v, got %v", infohash.Hex(), cinfohash.Hex())
    }
}