fix: deep copy pattern for slices to pointers (#134)

VERSION

@@ -1 +1 @@
-0.0.46
+0.0.47

internal/reflect/random.go

@@ -84,27 +84,27 @@ func (r *random) newPrimitive(kind reflect.Kind) any {
 	case reflect.Bool:
 		return r.rand.Intn(r.length) != 0
 	case reflect.Int:
-		return r.rand.Intn(r.length) + 1
+		return r.rand.Intn(2<<r.length) + 1
 	case reflect.Int8:
-		return int8(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return int8(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Int16:
-		return int16(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return int16(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Int32:
-		return int32(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return int32(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Int64:
-		return int64(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return int64(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uint:
-		return uint(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return uint(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uint8:
-		return uint8(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return uint8(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uint16:
-		return uint16(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return uint16(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uint32:
-		return uint32(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return uint32(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uint64:
-		return uint64(r.rand.Intn(r.length) + 1) // #nosec G115 -- intentional use.
+		return uint64(r.rand.Intn(2<<r.length) + 1) // #nosec G115 -- intentional use.
 	case reflect.Uintptr:
-		return uintptr(r.rand.Intn(r.length) + 1)
+		return uintptr(r.rand.Intn(2<<r.length) + 1)
 	case reflect.Float32:
 		return float32(r.rand.Float64())
 	case reflect.Float64:

test/pattern.go

@@ -295,10 +295,25 @@ func DeepCopy(t Test, p DeepCopyParams) {
 // `DeepCopyObject` or the `DeepCopy` method - in this order.
 func deepCopy(value any) (any, error) {
 	rv := reflect.ValueOf(value)
-	if !rv.IsValid() /* || rv.IsNil() */ {
+	if !rv.IsValid() {
 		return nil, errNoDeepCopyMethod
 	}
 
+	if rv.Kind() == reflect.Ptr && rv.IsNil() {
+		elem := rv.Type().Elem()
+		zeroValue := reflect.Zero(elem)
+
+		if method, ok := elem.MethodByName("DeepCopyObject"); ok {
+			return zeroValue.Method(method.Index).
+				Call(nil)[0].Interface(), nil
+		}
+
+		if method, ok := elem.MethodByName("DeepCopy"); ok {
+			return zeroValue.Method(method.Index).
+				Call(nil)[0].Interface(), nil
+		}
+	}
+
 	method := rv.MethodByName("DeepCopyObject")
 	if method.IsValid() {
 		return method.Call(nil)[0].Interface(), nil