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Separate allFieldsAreSet function

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This commit is contained in:
Quentin Mc Gaw 2025-02-12 14:31:42 +01:00
parent 5e413e4ab7
commit 6e646046c8
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GPG key ID: 6B26BAFFE648CAFB
1 changed files with 52 additions and 41 deletions
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93
core/types/block_test.go
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@ -342,7 +342,7 @@ func TestCopyHeader(t *testing.T) {
t.Run("filled_header", func(t *testing.T) {
t.Parallel()
h := Header{
h := &Header{
ParentHash: common.Hash{1},
UncleHash: common.Hash{2},
Coinbase: common.Address{3},
@ -368,7 +368,7 @@ func TestCopyHeader(t *testing.T) {
allFieldsAreSet(t, h)
cpy := CopyHeader(&h)
cpy := CopyHeader(h)
want := &Header{
ParentHash: common.Hash{1},
@ -396,52 +396,18 @@ func TestCopyHeader(t *testing.T) {
assert.Equal(t, want, cpy)
// Mutate each non-value field to ensure they are not shared
v := reflect.ValueOf(&h).Elem()
for i := 0; i < v.NumField(); i++ {
field := v.Field(i)
fieldName := v.Type().Field(i).Name
if unicode.IsLower(rune(fieldName[0])) {
field = reflect.NewAt(field.Type(), unsafe.Pointer(field.UnsafeAddr())).Elem()
}
var originalField any
switch field.Kind() {
case reflect.Array, reflect.Uint64: // values
case reflect.Slice:
originalField = field.Interface()
switch originalField.(type) {
case []byte:
field.Set(reflect.Append(field, reflect.ValueOf(byte(1))))
default:
t.Fatalf("unexpected slice type %T for %q", originalField, fieldName)
}
originalField = field.Interface()
case reflect.Pointer:
originalField = field.Interface()
switch ptr := originalField.(type) {
case *big.Int:
ptr.Add(ptr, big.NewInt(1))
case *uint64:
*ptr++
case *common.Hash:
ptr[0]++
default:
t.Fatalf("unexpected pointer type %T for %q", ptr, fieldName)
}
default:
t.Fatalf("unexpected field kind %v for %q", field.Kind(), fieldName)
}
cpyField := reflect.ValueOf(*cpy).Field(i).Interface()
assert.NotEqualf(t, originalField, cpyField, "field %q", fieldName)
}
fieldsAreDeepCopied(t, h, cpy)
})
}
func ptrTo[T any](x T) *T { return &x }
func allFieldsAreSet(t *testing.T, x any) {
v := reflect.ValueOf(x)
t.Helper()
require.Equal(t, reflect.Ptr.String(), reflect.TypeOf(x).Kind().String(), "x must be a pointer")
v := reflect.ValueOf(x).Elem()
typ := v.Type()
require.Equal(t, reflect.Struct, typ.Kind())
require.Equal(t, reflect.Struct.String(), typ.Kind().String())
for i := 0; i < v.NumField(); i++ {
field := v.Field(i)
fieldName := typ.Field(i).Name
@ -459,3 +425,48 @@ func allFieldsAreSet(t *testing.T, x any) {
require.True(t, isSet, "field %q is not set", fieldName)
}
}
func fieldsAreDeepCopied(t *testing.T, original, cpy any) {
t.Helper()
require.Equal(t, reflect.Ptr.String(), reflect.TypeOf(original).Kind().String(), "original must be a pointer")
require.Equal(t, reflect.Ptr.String(), reflect.TypeOf(cpy).Kind().String(), "cpy must be a pointer")
v := reflect.ValueOf(original).Elem()
for i := 0; i < v.NumField(); i++ {
field := v.Field(i)
fieldName := v.Type().Field(i).Name
if unicode.IsLower(rune(fieldName[0])) {
field = reflect.NewAt(field.Type(), unsafe.Pointer(field.UnsafeAddr())).Elem()
}
var originalField any
switch field.Kind() {
case reflect.Array, reflect.Uint64: // values
case reflect.Slice:
originalField = field.Interface()
switch originalField.(type) {
case []byte:
field.Set(reflect.Append(field, reflect.ValueOf(byte(1))))
default:
t.Fatalf("unexpected slice type %T for %q", originalField, fieldName)
}
originalField = field.Interface()
case reflect.Pointer:
originalField = field.Interface()
switch ptr := originalField.(type) {
case *big.Int:
ptr.Add(ptr, big.NewInt(1))
case *uint64:
*ptr++
case *common.Hash:
ptr[0]++
default:
t.Fatalf("unexpected pointer type %T for %q", ptr, fieldName)
}
default:
t.Fatalf("unexpected field kind %v for %q", field.Kind(), fieldName)
}
cpyField := reflect.ValueOf(cpy).Elem().Field(i).Interface()
assert.NotEqualf(t, originalField, cpyField, "field %q", fieldName)
}
}