compiler, cli/js: fix solidity compiler tests failing when a different version of solc installed

cmd/geth/info_test.json

-{"code":"605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056","info":{"abiDefinition":[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}],"compilerVersion":"0.9.13","developerDoc":{"methods":{}},"language":"Solidity","languageVersion":"0","source":"contract test {\n   /// @notice Will multiply `a` by 7.\n   function multiply(uint a) returns(uint d) {\n       return a * 7;\n   }\n}\n","userDoc":{"methods":{"multiply(uint256)":{"notice":"Will multiply `a` by 7."}}}}}
\ No newline at end of file
+{"code":"605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056","info":{"abiDefinition":[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}],"compilerVersion":"0.9.17","developerDoc":{"methods":{}},"language":"Solidity","languageVersion":"0","source":"contract test {\n   /// @notice Will multiply `a` by 7.\n   function multiply(uint a) returns(uint d) {\n       return a * 7;\n   }\n}\n","userDoc":{"methods":{"multiply(uint256)":{"notice":"Will multiply `a` by 7."}}}}}
\ No newline at end of file

cmd/geth/js_test.go

@@ -25,6 +25,7 @@ import (
 
 const (
 	testSolcPath = ""
+	solcVersion  = "0.9.17"
 
 	testKey     = "e6fab74a43941f82d89cb7faa408e227cdad3153c4720e540e855c19b15e6674"
 	testAddress = "0x8605cdbbdb6d264aa742e77020dcbc58fcdce182"
@@ -273,9 +274,16 @@ func TestContract(t *testing.T) {
 	checkEvalJSON(t, repl, `primary = eth.accounts[0]`, `"`+testAddress+`"`)
 	checkEvalJSON(t, repl, `source = "`+source+`"`, `"`+source+`"`)
 
-	_, err = compiler.New("")
+	// if solc is found with right version, test it, otherwise read from file
+	sol, err := compiler.New("")
 	if err != nil {
 		t.Logf("solc not found: skipping compiler test")
+	} else if sol.Version() != solcVersion {
+		err = fmt.Errorf("solc wrong version found (%v, expect %v): skipping compiler test", sol.Version(), solcVersion)
+		t.Log(err)
+	}
+
+	if err != nil {
 		info, err := ioutil.ReadFile("info_test.json")
 		if err != nil {
 			t.Fatalf("%v", err)
@@ -287,6 +295,7 @@ func TestContract(t *testing.T) {
 	} else {
 		checkEvalJSON(t, repl, `contract = eth.compile.solidity(source)`, string(contractInfo))
 	}
+
 	checkEvalJSON(t, repl, `contract.code`, `"605280600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b60376004356041565b8060005260206000f35b6000600782029050604d565b91905056"`)
 
 	checkEvalJSON(
@@ -326,7 +335,7 @@ multiply7 = new Multiply7(contractaddress);
 	}
 
 	checkEvalJSON(t, repl, `filename = "/tmp/info.json"`, `"/tmp/info.json"`)
-	checkEvalJSON(t, repl, `contenthash = admin.contractInfo.register(primary, contractaddress, contract, filename)`, `"0x57e577316ccee6514797d9de9823af2004fdfe22bcfb6e39bbb8f92f57dcc421"`)
+	checkEvalJSON(t, repl, `contenthash = admin.contractInfo.register(primary, contractaddress, contract, filename)`, `"0x0d067e2dd99a4d8f0c0279738b17130dd415a89f24a23f0e7cf68c546ae3089d"`)
 	checkEvalJSON(t, repl, `admin.contractInfo.registerUrl(primary, contenthash, "file://"+filename)`, `true`)
 	if err != nil {
 		t.Errorf("unexpected error registering, got %v", err)

common/compiler/solidity.go

@@ -88,6 +88,10 @@ func (sol *Solidity) Info() string {
 	return fmt.Sprintf("solc v%s\nSolidity Compiler: %s\n%s", sol.version, sol.solcPath, flair)
 }
 
+func (sol *Solidity) Version() string {
+	return sol.version
+}
+
 func (sol *Solidity) Compile(source string) (contract *Contract, err error) {
 
 	if len(source) == 0 {

common/compiler/solidity_test.go

@@ -9,6 +9,8 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 )
 
+const solcVersion = "0.9.17"
+
 var (
 	source = `
 contract test {
@@ -19,9 +21,9 @@ contract test {
 }
 `
 	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":"0.9.13","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":{}}}`
+	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("0xfdb031637e8a1c1891143f8d129ebc7f7c4e4b41ecad8c85abe1756190f74204")
+	infohash = common.HexToHash("0x834075768a68e500e459b9c3213750c84de3df47156500cb01bb664d3f88c60a")
 )
 
 func TestCompiler(t *testing.T) {
@@ -41,7 +43,7 @@ func TestCompiler(t *testing.T) {
 
 func TestCompileError(t *testing.T) {
 	sol, err := New("")
-	if err != nil {
+	if err != nil || sol.version != solcVersion {
 		t.Skip("no solc installed")
 	}
 	contract, err := sol.Compile(source[2:])