/
enum_map.rs
459 lines (440 loc) · 13.7 KB
/
enum_map.rs
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use super::*;
use core::{fmt::Write as _, str::FromStr};
use serde_test::Configure;
use serde_with::EnumMap;
use std::net::IpAddr;
fn bytes_debug_readable(bytes: &[u8]) -> String {
let mut result = String::with_capacity(bytes.len() * 2);
for &byte in bytes {
match byte {
non_printable if !(0x20..0x7f).contains(&non_printable) => {
write!(result, "\\x{:02x}", byte).unwrap();
}
b'\\' => result.push_str("\\\\"),
_ => {
result.push(byte as char);
}
}
}
result
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
enum EnumValue {
Int(i32),
String(String),
Unit,
Tuple(i32, String, bool),
Struct {
a: i32,
b: String,
c: bool,
},
Ip(IpAddr, IpAddr),
#[serde(rename = "$value")]
Extra(serde_json::Value),
}
#[serde_as]
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
struct VecEnumValues {
#[serde_as(as = "EnumMap")]
vec: Vec<EnumValue>,
}
#[test]
fn json_round_trip() {
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
EnumValue::Int(456),
EnumValue::String("XXX".to_string()),
EnumValue::Unit,
EnumValue::Tuple(1, "Middle".to_string(), false),
EnumValue::Struct {
a: 666,
b: "BBB".to_string(),
c: true,
},
],
};
let json = serde_json::to_string_pretty(&values).unwrap();
expect_test::expect![[r#"
{
"vec": {
"Int": 123,
"String": "FooBar",
"Int": 456,
"String": "XXX",
"Unit": null,
"Tuple": [
1,
"Middle",
false
],
"Struct": {
"a": 666,
"b": "BBB",
"c": true
}
}
}"#]]
.assert_eq(&json);
let deser_values: VecEnumValues = serde_json::from_str(&json).unwrap();
assert_eq!(values, deser_values);
}
#[test]
fn ron_serialize() {
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
EnumValue::Int(456),
EnumValue::String("XXX".to_string()),
EnumValue::Unit,
EnumValue::Tuple(1, "Middle".to_string(), false),
EnumValue::Struct {
a: 666,
b: "BBB".to_string(),
c: true,
},
],
};
let pretty_config = ron::ser::PrettyConfig::new().new_line("\n".into());
let ron = ron::ser::to_string_pretty(&values, pretty_config).unwrap();
expect_test::expect![[r#"
(
vec: {
"Int": 123,
"String": "FooBar",
"Int": 456,
"String": "XXX",
"Unit": (),
"Tuple": (1, "Middle", false),
"Struct": (
a: 666,
b: "BBB",
c: true,
),
},
)"#]]
.assert_eq(&ron);
// TODO deserializing a Strings as an Identifier seems unsupported
let deser_values: ron::Value = ron::de::from_str(&ron).unwrap();
expect_test::expect![[r#"
Map(
Map(
{
String(
"vec",
): Map(
Map(
{
String(
"Int",
): Number(
Integer(
456,
),
),
String(
"String",
): String(
"XXX",
),
String(
"Struct",
): Map(
Map(
{
String(
"a",
): Number(
Integer(
666,
),
),
String(
"b",
): String(
"BBB",
),
String(
"c",
): Bool(
true,
),
},
),
),
String(
"Tuple",
): Seq(
[
Number(
Integer(
1,
),
),
String(
"Middle",
),
Bool(
false,
),
],
),
String(
"Unit",
): Unit,
},
),
),
},
),
)
"#]]
.assert_debug_eq(&deser_values);
}
#[test]
fn xml_round_trip() {
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
EnumValue::Int(456),
EnumValue::String("XXX".to_string()),
EnumValue::Unit,
// serialize_tuple and variants are not supported by XML
// EnumValue::Tuple(1, "Middle".to_string(), false),
// Cannot be deserialized. It serializes to:
// <Struct><EnumValue><a>666</a><b>BBB</b><c>true</c></EnumValue></Struct>
// EnumValue::Struct {
// a: 666,
// b: "BBB".to_string(),
// c: true,
// },
],
};
let xml = serde_xml_rs::to_string(&values).unwrap();
expect_test::expect![[r#"<VecEnumValues><vec><Int>123</Int><String>FooBar</String><Int>456</Int><String>XXX</String><Unit></Unit></vec></VecEnumValues>"#]]
.assert_eq(&xml);
let deser_values: VecEnumValues = serde_xml_rs::from_str(&xml).unwrap();
assert_eq!(values, deser_values);
}
#[test]
fn serde_test_round_trip() {
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
EnumValue::Int(456),
EnumValue::String("XXX".to_string()),
EnumValue::Unit,
EnumValue::Tuple(1, "Middle".to_string(), false),
EnumValue::Struct {
a: 666,
b: "BBB".to_string(),
c: true,
},
],
};
use serde_test::Token::*;
serde_test::assert_tokens(
&values.readable(),
&[
Struct {
name: "VecEnumValues",
len: 1,
},
Str("vec"),
Map {
len: Option::Some(7),
},
Str("Int"),
I32(123),
Str("String"),
Str("FooBar"),
Str("Int"),
I32(456),
Str("String"),
Str("XXX"),
Str("Unit"),
Unit,
Str("Tuple"),
TupleStruct {
name: "EnumValue",
len: 3,
},
I32(1),
Str("Middle"),
Bool(false),
TupleStructEnd,
Str("Struct"),
Struct {
name: "EnumValue",
len: 3,
},
Str("a"),
I32(666),
Str("b"),
Str("BBB"),
Str("c"),
Bool(true),
StructEnd,
MapEnd,
StructEnd,
],
);
}
#[test]
fn serde_test_round_trip_human_readable() {
let values = VecEnumValues {
vec: vec![EnumValue::Ip(
IpAddr::from_str("127.0.0.1").unwrap(),
IpAddr::from_str("::7777:dead:beef").unwrap(),
)],
};
use serde_test::Token::*;
serde_test::assert_tokens(
&values.clone().readable(),
&[
Struct {
name: "VecEnumValues",
len: 1,
},
Str("vec"),
Map {
len: Option::Some(1),
},
Str("Ip"),
TupleStruct {
name: "EnumValue",
len: 2,
},
Str("127.0.0.1"),
Str("::7777:dead:beef"),
TupleStructEnd,
MapEnd,
StructEnd,
],
);
serde_test::assert_tokens(
&values.compact(),
&[
Struct {
name: "VecEnumValues",
len: 1,
},
Str("vec"),
Map {
len: Option::Some(1),
},
Str("Ip"),
TupleStruct {
name: "EnumValue",
len: 2,
},
NewtypeVariant {
name: "IpAddr",
variant: "V4",
},
Tuple { len: 4 },
U8(127),
U8(0),
U8(0),
U8(1),
TupleEnd,
NewtypeVariant {
name: "IpAddr",
variant: "V6",
},
Tuple { len: 16 },
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0),
U8(0x77),
U8(0x77),
U8(0xde),
U8(0xad),
U8(0xbe),
U8(0xef),
TupleEnd,
TupleStructEnd,
MapEnd,
StructEnd,
],
);
}
// Bincode does not support Deserializer::deserialize_identifier
// https://github.com/bincode-org/bincode/blob/e0ac3245162ba668ba04591897dd88ff5b3096b8/src/de/mod.rs#L442
#[test]
fn rmp_round_trip() {
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
EnumValue::Int(456),
EnumValue::String("XXX".to_string()),
EnumValue::Unit,
EnumValue::Tuple(1, "Middle".to_string(), false),
EnumValue::Struct {
a: 666,
b: "BBB".to_string(),
c: true,
},
EnumValue::Ip(
IpAddr::from_str("127.0.0.1").unwrap(),
IpAddr::from_str("::7777:dead:beef").unwrap(),
),
],
};
let rmp = rmp_serde::to_vec(&values).unwrap();
expect_test::expect![[r#"\x91\x88\xa3Int{\xa6String\xa6FooBar\xa3Int\xcd\x01\xc8\xa6String\xa3XXX\xa4Unit\xc0\xa5Tuple\x93\x01\xa6Middle\xc2\xa6Struct\x93\xcd\x02\x9a\xa3BBB\xc3\xa2Ip\x92\x81\xa2V4\x94\x7f\x00\x00\x01\x81\xa2V6\xdc\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00ww\xcc\xde\xcc\xad\xcc\xbe\xcc\xef"#]]
.assert_eq(&bytes_debug_readable(&rmp));
let deser_values: VecEnumValues = rmp_serde::from_read(&*rmp).unwrap();
assert_eq!(values, deser_values);
}
#[test]
fn yaml_round_trip() {
// Duplicate enum variants do not work with YAML
let values = VecEnumValues {
vec: vec![
EnumValue::Int(123),
EnumValue::String("FooBar".to_string()),
// EnumValue::Int(456),
// EnumValue::String("XXX".to_string()),
EnumValue::Unit,
EnumValue::Tuple(1, "Middle".to_string(), false),
EnumValue::Struct {
a: 666,
b: "BBB".to_string(),
c: true,
},
],
};
let yaml = serde_yaml::to_string(&values).unwrap();
expect_test::expect![[r#"
---
vec:
Int: 123
String: FooBar
Unit: ~
Tuple:
- 1
- Middle
- false
Struct:
a: 666
b: BBB
c: true
"#]]
.assert_eq(&yaml);
let deser_values: VecEnumValues = serde_yaml::from_str(&yaml).unwrap();
assert_eq!(values, deser_values);
}