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make oss-fuzz integration work again (#164)
This should make the oss-fuzz integration work again
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| package uint256 | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "math/big" | ||
| "testing" | ||
| ) | ||
|
|
||
| func testSetFromDecForFuzzing(tc string) error { | ||
| a := new(Int).SetAllOne() | ||
| err := a.SetFromDecimal(tc) | ||
| // If input is negative, we should eror | ||
| if len(tc) > 0 && tc[0] == '-' { | ||
| if err == nil { | ||
| return fmt.Errorf("want error on negative input") | ||
| } | ||
| return nil | ||
| } | ||
| // Need to compare with big.Int | ||
| bigA, ok := big.NewInt(0).SetString(tc, 10) | ||
| if !ok { | ||
| if err == nil { | ||
| return fmt.Errorf("want error") | ||
| } | ||
| return nil // both agree that input is bad | ||
| } | ||
| if bigA.BitLen() > 256 { | ||
| if err == nil { | ||
| return fmt.Errorf("want error (bitlen > 256)") | ||
| } | ||
| return nil | ||
| } | ||
| want := bigA.String() | ||
| have := a.Dec() | ||
| if want != have { | ||
| return fmt.Errorf("want %v, have %v", want, have) | ||
| } | ||
| if _, err := a.Value(); err != nil { | ||
| return fmt.Errorf("fail to Value() %s, got err %s", tc, err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func FuzzSetString(f *testing.F) { | ||
| f.Fuzz(func(t *testing.T, data []byte) { | ||
| if len(data) > 512 { | ||
| return | ||
| } | ||
| if err := testSetFromDecForFuzzing(string(data)); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| }) | ||
| } |
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