1  // Copyright (c) 2019-2025 Alpha-Delta Network Inc.
 2  // This file is part of the alphavm library.
 3  
 4  // Licensed under the Apache License, Version 2.0 (the "License");
 5  // you may not use this file except in compliance with the License.
 6  // You may obtain a copy of the License at:
 7  
 8  // http://www.apache.org/licenses/LICENSE-2.0
 9  
10  // Unless required by applicable law or agreed to in writing, software
11  // distributed under the License is distributed on an "AS IS" BASIS,
12  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  // See the License for the specific language governing permissions and
14  // limitations under the License.
15  
16  use super::*;
17  
18  impl<E: Environment> Serialize for StringType<E> {
19      /// Serializes the string into bytes if the format is not human-readable.
20      fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
21          match serializer.is_human_readable() {
22              true => serializer.collect_str(self),
23              false => ToBytesSerializer::serialize(self, serializer),
24          }
25      }
26  }
27  
28  impl<'de, E: Environment> Deserialize<'de> for StringType<E> {
29      /// Deserializes the string from bytes, if it is not human-readable.
30      fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
31          match deserializer.is_human_readable() {
32              true => FromStr::from_str(&String::deserialize(deserializer)?).map_err(de::Error::custom),
33              false => FromBytesDeserializer::<Self>::deserialize_with_u16(deserializer, "string"),
34          }
35      }
36  }
37  
38  #[cfg(test)]
39  mod tests {
40      use super::*;
41      use alphavm_console_network_environment::Console;
42  
43      type CurrentEnvironment = Console;
44  
45      const ITERATIONS: u64 = 1000;
46  
47      #[test]
48      fn test_serde_json() -> Result<()> {
49          let mut rng = TestRng::default();
50  
51          for _ in 0..ITERATIONS {
52              // Sample a new string.
53              let expected = StringType::<CurrentEnvironment>::rand(&mut rng);
54  
55              // Serialize
56              let expected_string = &expected.to_string();
57              let candidate_string = serde_json::to_string(&expected)?;
58              assert_eq!(expected_string, serde_json::Value::from_str(&candidate_string)?.as_str().unwrap());
59  
60              // Deserialize
61              assert_eq!(expected, StringType::from_str(expected_string)?);
62              assert_eq!(expected, serde_json::from_str(&candidate_string)?);
63          }
64          Ok(())
65      }
66  
67      #[test]
68      fn test_bincode() -> Result<()> {
69          let mut rng = TestRng::default();
70  
71          for _ in 0..ITERATIONS {
72              // Sample a new string.
73              let expected = StringType::<CurrentEnvironment>::rand(&mut rng);
74  
75              // Serialize
76              let expected_bytes = expected.to_bytes_le()?;
77              assert_eq!(&expected_bytes[..], &bincode::serialize(&expected)?[..]);
78  
79              // Deserialize
80              assert_eq!(expected, StringType::read_le(&expected_bytes[..])?);
81              assert_eq!(expected, bincode::deserialize(&expected_bytes[..])?);
82          }
83          Ok(())
84      }
85  }