Add BLS12-381 failure test cases and implement IsWrite method for dummy precompile

Author: Frozen

core/vm/contracts_test.go

@@ -18,7 +18,9 @@ package vm
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
+	"io/ioutil"
 	"math/big"
 	"reflect"
 	"testing"
@@ -398,6 +400,16 @@ var blake2FTests = []precompiledTest{
 	},
 }
 
+func loadJson(name string) ([]precompiledTest, error) {
+	data, err := ioutil.ReadFile(fmt.Sprintf("testdata/precompiles/%v.json", name))
+	if err != nil {
+		return nil, err
+	}
+	var testcases []precompiledTest
+	err = json.Unmarshal(data, &testcases)
+	return testcases, err
+}
+
 func testPrecompiled(addr string, test precompiledTest, t *testing.T) {
 	p := PrecompiledContractsSHA3FIPS[common.HexToAddress(addr)]
 	in := common.Hex2Bytes(test.input)
@@ -572,6 +584,10 @@ func BenchmarkPrecompiledBn256Add(bench *testing.B) {
 
 // Tests OOG
 func TestPrecompiledModExpOOG(t *testing.T) {
+	modexpTests, err := loadJson("modexp")
+	if err != nil {
+		t.Fatal(err)
+	}
 	for _, test := range modexpTests {
 		testPrecompiledOOG("05", test, t)
 	}

core/vm/testdata/precompiles/blake2F.json

@@ -0,0 +1,37 @@
+[
+  {
+    "Input": "0000000048c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
+    "Expected": "08c9bcf367e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d282e6ad7f520e511f6c3e2b8c68059b9442be0454267ce079217e1319cde05b",
+    "Name": "vector 4",
+    "Gas": 0,
+    "NoBenchmark": false
+  },
+  {
+    "Input": "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
+    "Expected": "ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923",
+    "Name": "vector 5",
+    "Gas": 12,
+    "NoBenchmark": false
+  },
+  {
+    "Input": "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000000",
+    "Expected": "75ab69d3190a562c51aef8d88f1c2775876944407270c42c9844252c26d2875298743e7f6d5ea2f2d3e8d226039cd31b4e426ac4f2d3d666a610c2116fde4735",
+    "Name": "vector 6",
+    "Gas": 12,
+    "NoBenchmark": false
+  },
+  {
+    "Input": "0000000148c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
+    "Expected": "b63a380cb2897d521994a85234ee2c181b5f844d2c624c002677e9703449d2fba551b3a8333bcdf5f2f7e08993d53923de3d64fcc68c034e717b9293fed7a421",
+    "Name": "vector 7",
+    "Gas": 1,
+    "NoBenchmark": false
+  },
+  {
+    "Input": "007A120048c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
+    "Expected": "6d2ce9e534d50e18ff866ae92d70cceba79bbcd14c63819fe48752c8aca87a4bb7dcc230d22a4047f0486cfcfb50a17b24b2899eb8fca370f22240adb5170189",
+    "Name": "vector 8",
+    "Gas": 8000000,
+    "NoBenchmark": false
+  }
+]