gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

eth/tracers: do the JSON serialization via .js to capture C faults

Browse Source
This commit is contained in:
Péter Szilágyi
2021-05-11 16:23:54 +03:00
parent ca98080798
commit 0524cede37
2 changed files with 28 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
eth/tracers/tracer_test.go
View File

@@ -78,7 +78,7 @@ func runTrace(tracer *Tracer, vmctx *vmContext) (json.RawMessage, error) {
}
func TestTracer(t *testing.T) {
execTracer := func(code string) []byte {
execTracer := func(code string) ([]byte, string) {
t.Helper()
ctx := &vmContext{blockCtx: vm.BlockContext{BlockNumber: big.NewInt(1)}, txCtx: vm.TxContext{GasPrice: big.NewInt(100000)}}
tracer, err := New(code, ctx.txCtx)
@@ -87,13 +87,14 @@ func TestTracer(t *testing.T) {
}
ret, err := runTrace(tracer, ctx)
if err != nil {
t.Fatal(err)
return nil, err.Error() // Stringify to allow comparison without nil checks
}
return ret
return ret, ""
}
for i, tt := range []struct {
code string
want string
fail string
}{
{ // tests that we don't panic on bad arguments to memory access
code: "{depths: [], step: function(log) { this.depths.push(log.memory.slice(-1,-2)); }, fault: function() {}, result: function() { return this.depths; }}",
@@ -116,10 +117,13 @@ func TestTracer(t *testing.T) {
}, { // tests intrinsic gas
code: "{depths: [], step: function() {}, fault: function() {}, result: function(ctx) { return ctx.gasPrice+'.'+ctx.gasUsed+'.'+ctx.intrinsicGas; }}",
want: `"100000.6.21000"`,
}, { // tests too deep object / serialization crash
code: "{step: function() {}, fault: function() {}, result: function() { var o={}; var x=o; for (var i=0; i<1000; i++){ o.foo={}; o=o.foo; } return x; }}",
fail: "RangeError: json encode recursion limit in server-side tracer function 'result'",
},
} {
if have := execTracer(tt.code); tt.want != string(have) {
t.Errorf("testcase %d: expected return value to be %s got %s\n\tcode: %v", i, tt.want, string(have), tt.code)
if have, err := execTracer(tt.code); tt.want != string(have) || tt.fail != err {
t.Errorf("testcase %d: expected return value to be '%s' got '%s', error to be '%s' got '%s'\n\tcode: %v", i, tt.want, string(have), tt.fail, err, tt.code)
}
}
}