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29dc6c3367
serde/test_suite/tests/test_ser.rs
Jörn Bethune 3d1b19ed90 Implement Ser+De for Saturating<T> 
The serialization implementation is heavily
inspired by the existing trait implentation for
`std::num::Wrapping<T>`.

The deserializing implementation maps input values
that lie outside of the numerical range of the
output type to the `MIN` or `MAX` value of the
output type, depending on the sign of the input
value. This behaviour follows to the `Saturating`
semantics of the output type.

fix #2708
2024-04-06 19:58:01 +02:00

921 lines
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#![allow(clippy::derive_partial_eq_without_eq, clippy::unreadable_literal)]
#![cfg_attr(feature = "unstable", feature(never_type))]
use fnv::FnvHasher;
use serde_derive::Serialize;
use serde_test::{assert_ser_tokens, assert_ser_tokens_error, Configure, Token};
use std::cell::RefCell;
use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
use std::ffi::CString;
use std::net;
use std::num::{Saturating, Wrapping};
use std::ops::Bound;
use std::path::{Path, PathBuf};
use std::rc::{Rc, Weak as RcWeak};
#[cfg(unix)]
use std::str;
use std::sync::atomic::{
AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
AtomicUsize,
};
#[cfg(target_arch = "x86_64")]
use std::sync::atomic::{AtomicI64, AtomicU64};
use std::sync::{Arc, Mutex, RwLock, Weak as ArcWeak};
use std::time::{Duration, UNIX_EPOCH};
#[macro_use]
mod macros;
//////////////////////////////////////////////////////////////////////////
#[derive(Serialize)]
struct UnitStruct;
#[derive(Serialize)]
struct TupleStruct(i32, i32, i32);
#[derive(Serialize)]
struct Struct {
a: i32,
b: i32,
c: i32,
}
#[derive(PartialEq, Debug)]
struct NotSerializable;
#[derive(Serialize, PartialEq, Debug)]
enum Enum {
Unit,
One(i32),
Seq(i32, i32),
Map {
a: i32,
b: i32,
},
#[serde(skip_serializing)]
SkippedUnit,
#[serde(skip_serializing)]
SkippedOne(i32),
#[serde(skip_serializing)]
SkippedSeq(i32, i32),
#[serde(skip_serializing)]
SkippedMap {
_a: i32,
_b: i32,
},
OneWithSkipped(#[serde(skip_serializing)] NotSerializable),
}
//////////////////////////////////////////////////////////////////////////
#[test]
fn test_unit() {
assert_ser_tokens(&(), &[Token::Unit]);
}
#[test]
fn test_bool() {
assert_ser_tokens(&true, &[Token::Bool(true)]);
assert_ser_tokens(&false, &[Token::Bool(false)]);
}
#[test]
fn test_isizes() {
assert_ser_tokens(&0i8, &[Token::I8(0)]);
assert_ser_tokens(&0i16, &[Token::I16(0)]);
assert_ser_tokens(&0i32, &[Token::I32(0)]);
assert_ser_tokens(&0i64, &[Token::I64(0)]);
}
#[test]
fn test_usizes() {
assert_ser_tokens(&0u8, &[Token::U8(0)]);
assert_ser_tokens(&0u16, &[Token::U16(0)]);
assert_ser_tokens(&0u32, &[Token::U32(0)]);
assert_ser_tokens(&0u64, &[Token::U64(0)]);
}
#[test]
fn test_floats() {
assert_ser_tokens(&0f32, &[Token::F32(0.)]);
assert_ser_tokens(&0f64, &[Token::F64(0.)]);
}
#[test]
fn test_char() {
assert_ser_tokens(&'a', &[Token::Char('a')]);
}
#[test]
fn test_str() {
assert_ser_tokens(&"abc", &[Token::Str("abc")]);
assert_ser_tokens(&"abc".to_owned(), &[Token::Str("abc")]);
}
#[test]
fn test_option() {
assert_ser_tokens(&None::<i32>, &[Token::None]);
assert_ser_tokens(&Some(1), &[Token::Some, Token::I32(1)]);
}
#[test]
fn test_result() {
assert_ser_tokens(
&Ok::<i32, i32>(0),
&[
Token::NewtypeVariant {
name: "Result",
variant: "Ok",
},
Token::I32(0),
],
);
assert_ser_tokens(
&Err::<i32, i32>(1),
&[
Token::NewtypeVariant {
name: "Result",
variant: "Err",
},
Token::I32(1),
],
);
}
#[test]
fn test_slice() {
assert_ser_tokens(&[0][..0], &[Token::Seq { len: Some(0) }, Token::SeqEnd]);
assert_ser_tokens(
&[1, 2, 3][..],
&[
Token::Seq { len: Some(3) },
Token::I32(1),
Token::I32(2),
Token::I32(3),
Token::SeqEnd,
],
);
}
#[test]
fn test_array() {
assert_ser_tokens(&[0; 0], &[Token::Tuple { len: 0 }, Token::TupleEnd]);
assert_ser_tokens(
&[1, 2, 3],
&[
Token::Tuple { len: 3 },
Token::I32(1),
Token::I32(2),
Token::I32(3),
Token::TupleEnd,
],
);
}
#[test]
fn test_vec() {
assert_ser_tokens(
&Vec::<isize>::new(),
&[Token::Seq { len: Some(0) }, Token::SeqEnd],
);
assert_ser_tokens(
&vec![vec![], vec![1], vec![2, 3]],
&[
Token::Seq { len: Some(3) },
Token::Seq { len: Some(0) },
Token::SeqEnd,
Token::Seq { len: Some(1) },
Token::I32(1),
Token::SeqEnd,
Token::Seq { len: Some(2) },
Token::I32(2),
Token::I32(3),
Token::SeqEnd,
Token::SeqEnd,
],
);
}
#[test]
fn test_btreeset() {
assert_ser_tokens(
&BTreeSet::<isize>::new(),
&[Token::Seq { len: Some(0) }, Token::SeqEnd],
);
assert_ser_tokens(
&btreeset![1],
&[Token::Seq { len: Some(1) }, Token::I32(1), Token::SeqEnd],
);
}
#[test]
fn test_hashset() {
assert_ser_tokens(
&HashSet::<isize>::new(),
&[Token::Seq { len: Some(0) }, Token::SeqEnd],
);
assert_ser_tokens(
&hashset![1],
&[Token::Seq { len: Some(1) }, Token::I32(1), Token::SeqEnd],
);
assert_ser_tokens(
&hashset![FnvHasher @ 1],
&[Token::Seq { len: Some(1) }, Token::I32(1), Token::SeqEnd],
);
}
#[test]
fn test_tuple() {
assert_ser_tokens(
&(1,),
&[Token::Tuple { len: 1 }, Token::I32(1), Token::TupleEnd],
);
assert_ser_tokens(
&(1, 2, 3),
&[
Token::Tuple { len: 3 },
Token::I32(1),
Token::I32(2),
Token::I32(3),
Token::TupleEnd,
],
);
}
#[test]
fn test_btreemap() {
assert_ser_tokens(
&btreemap![1 => 2],
&[
Token::Map { len: Some(1) },
Token::I32(1),
Token::I32(2),
Token::MapEnd,
],
);
assert_ser_tokens(
&btreemap![1 => 2, 3 => 4],
&[
Token::Map { len: Some(2) },
Token::I32(1),
Token::I32(2),
Token::I32(3),
Token::I32(4),
Token::MapEnd,
],
);
assert_ser_tokens(
&btreemap![1 => btreemap![], 2 => btreemap![3 => 4, 5 => 6]],
&[
Token::Map { len: Some(2) },
Token::I32(1),
Token::Map { len: Some(0) },
Token::MapEnd,
Token::I32(2),
Token::Map { len: Some(2) },
Token::I32(3),
Token::I32(4),
Token::I32(5),
Token::I32(6),
Token::MapEnd,
Token::MapEnd,
],
);
}
#[test]
fn test_hashmap() {
assert_ser_tokens(
&HashMap::<isize, isize>::new(),
&[Token::Map { len: Some(0) }, Token::MapEnd],
);
assert_ser_tokens(
&hashmap![1 => 2],
&[
Token::Map { len: Some(1) },
Token::I32(1),
Token::I32(2),
Token::MapEnd,
],
);
assert_ser_tokens(
&hashmap![FnvHasher @ 1 => 2],
&[
Token::Map { len: Some(1) },
Token::I32(1),
Token::I32(2),
Token::MapEnd,
],
);
}
#[test]
fn test_unit_struct() {
assert_ser_tokens(&UnitStruct, &[Token::UnitStruct { name: "UnitStruct" }]);
}
#[test]
fn test_tuple_struct() {
assert_ser_tokens(
&TupleStruct(1, 2, 3),
&[
Token::TupleStruct {
name: "TupleStruct",
len: 3,
},
Token::I32(1),
Token::I32(2),
Token::I32(3),
Token::TupleStructEnd,
],
);
}
#[test]
fn test_struct() {
assert_ser_tokens(
&Struct { a: 1, b: 2, c: 3 },
&[
Token::Struct {
name: "Struct",
len: 3,
},
Token::Str("a"),
Token::I32(1),
Token::Str("b"),
Token::I32(2),
Token::Str("c"),
Token::I32(3),
Token::StructEnd,
],
);
}
#[test]
fn test_enum() {
assert_ser_tokens(
&Enum::Unit,
&[Token::UnitVariant {
name: "Enum",
variant: "Unit",
}],
);
assert_ser_tokens(
&Enum::One(42),
&[
Token::NewtypeVariant {
name: "Enum",
variant: "One",
},
Token::I32(42),
],
);
assert_ser_tokens(
&Enum::Seq(1, 2),
&[
Token::TupleVariant {
name: "Enum",
variant: "Seq",
len: 2,
},
Token::I32(1),
Token::I32(2),
Token::TupleVariantEnd,
],
);
assert_ser_tokens(
&Enum::Map { a: 1, b: 2 },
&[
Token::StructVariant {
name: "Enum",
variant: "Map",
len: 2,
},
Token::Str("a"),
Token::I32(1),
Token::Str("b"),
Token::I32(2),
Token::StructVariantEnd,
],
);
assert_ser_tokens(
&Enum::OneWithSkipped(NotSerializable),
&[Token::UnitVariant {
name: "Enum",
variant: "OneWithSkipped",
}],
);
}
#[test]
fn test_box() {
assert_ser_tokens(&Box::new(0i32), &[Token::I32(0)]);
}
#[test]
fn test_boxed_slice() {
assert_ser_tokens(
&Box::new([0, 1, 2]),
&[
Token::Tuple { len: 3 },
Token::I32(0),
Token::I32(1),
Token::I32(2),
Token::TupleEnd,
],
);
}
#[test]
fn test_duration() {
assert_ser_tokens(
&Duration::new(1, 2),
&[
Token::Struct {
name: "Duration",
len: 2,
},
Token::Str("secs"),
Token::U64(1),
Token::Str("nanos"),
Token::U32(2),
Token::StructEnd,
],
);
}
#[test]
fn test_system_time() {
let system_time = UNIX_EPOCH + Duration::new(1, 200);
assert_ser_tokens(
&system_time,
&[
Token::Struct {
name: "SystemTime",
len: 2,
},
Token::Str("secs_since_epoch"),
Token::U64(1),
Token::Str("nanos_since_epoch"),
Token::U32(200),
Token::StructEnd,
],
);
}
#[test]
fn test_range() {
assert_ser_tokens(
&(1u32..2u32),
&[
Token::Struct {
name: "Range",
len: 2,
},
Token::Str("start"),
Token::U32(1),
Token::Str("end"),
Token::U32(2),
Token::StructEnd,
],
);
}
#[test]
fn test_range_inclusive() {
assert_ser_tokens(
&(1u32..=2u32),
&[
Token::Struct {
name: "RangeInclusive",
len: 2,
},
Token::Str("start"),
Token::U32(1),
Token::Str("end"),
Token::U32(2),
Token::StructEnd,
],
);
}
#[test]
fn test_range_from() {
assert_ser_tokens(
&(1u32..),
&[
Token::Struct {
name: "RangeFrom",
len: 1,
},
Token::Str("start"),
Token::U32(1),
Token::StructEnd,
],
);
}
#[test]
fn test_range_to() {
assert_ser_tokens(
&(..2u32),
&[
Token::Struct {
name: "RangeTo",
len: 1,
},
Token::Str("end"),
Token::U32(2),
Token::StructEnd,
],
);
}
#[test]
fn test_bound() {
assert_ser_tokens(
&Bound::Unbounded::<()>,
&[
Token::Enum { name: "Bound" },
Token::Str("Unbounded"),
Token::Unit,
],
);
assert_ser_tokens(
&Bound::Included(0u8),
&[
Token::Enum { name: "Bound" },
Token::Str("Included"),
Token::U8(0),
],
);
assert_ser_tokens(
&Bound::Excluded(0u8),
&[
Token::Enum { name: "Bound" },
Token::Str("Excluded"),
Token::U8(0),
],
);
}
#[test]
fn test_path() {
assert_ser_tokens(
&Path::new("/usr/local/lib"),
&[Token::Str("/usr/local/lib")],
);
}
#[test]
fn test_path_buf() {
assert_ser_tokens(
&PathBuf::from("/usr/local/lib"),
&[Token::Str("/usr/local/lib")],
);
}
#[test]
fn test_cstring() {
assert_ser_tokens(&CString::new("abc").unwrap(), &[Token::Bytes(b"abc")]);
}
#[test]
fn test_cstr() {
let cstring = CString::new("abc").unwrap();
assert_ser_tokens(cstring.as_c_str(), &[Token::Bytes(b"abc")]);
}
#[test]
fn test_rc() {
assert_ser_tokens(&Rc::new(true), &[Token::Bool(true)]);
}
#[test]
fn test_rc_weak_some() {
let rc = Rc::new(true);
assert_ser_tokens(&Rc::downgrade(&rc), &[Token::Some, Token::Bool(true)]);
}
#[test]
fn test_rc_weak_none() {
assert_ser_tokens(&RcWeak::<bool>::new(), &[Token::None]);
}
#[test]
fn test_arc() {
assert_ser_tokens(&Arc::new(true), &[Token::Bool(true)]);
}
#[test]
fn test_arc_weak_some() {
let arc = Arc::new(true);
assert_ser_tokens(&Arc::downgrade(&arc), &[Token::Some, Token::Bool(true)]);
}
#[test]
fn test_arc_weak_none() {
assert_ser_tokens(&ArcWeak::<bool>::new(), &[Token::None]);
}
#[test]
fn test_wrapping() {
assert_ser_tokens(&Wrapping(1usize), &[Token::U64(1)]);
}
#[test]
fn test_saturating() {
assert_ser_tokens(&Saturating(1usize), &[Token::U64(1)]);
}
#[test]
fn test_rc_dst() {
assert_ser_tokens(&Rc::<str>::from("s"), &[Token::Str("s")]);
assert_ser_tokens(
&Rc::<[bool]>::from(&[true][..]),
&[
Token::Seq { len: Some(1) },
Token::Bool(true),
Token::SeqEnd,
],
);
}
#[test]
fn test_arc_dst() {
assert_ser_tokens(&Arc::<str>::from("s"), &[Token::Str("s")]);
assert_ser_tokens(
&Arc::<[bool]>::from(&[true][..]),
&[
Token::Seq { len: Some(1) },
Token::Bool(true),
Token::SeqEnd,
],
);
}
#[test]
fn test_fmt_arguments() {
assert_ser_tokens(&format_args!("{}{}", 1, 'a'), &[Token::Str("1a")]);
}
#[test]
fn test_atomic() {
assert_ser_tokens(&AtomicBool::new(false), &[Token::Bool(false)]);
assert_ser_tokens(&AtomicBool::new(true), &[Token::Bool(true)]);
assert_ser_tokens(&AtomicI8::new(63i8), &[Token::I8(63i8)]);
assert_ser_tokens(&AtomicI16::new(-318i16), &[Token::I16(-318i16)]);
assert_ser_tokens(&AtomicI32::new(65792i32), &[Token::I32(65792i32)]);
assert_ser_tokens(&AtomicIsize::new(-65792isize), &[Token::I64(-65792i64)]);
assert_ser_tokens(&AtomicU8::new(192u8), &[Token::U8(192u8)]);
assert_ser_tokens(&AtomicU16::new(510u16), &[Token::U16(510u16)]);
assert_ser_tokens(&AtomicU32::new(131072u32), &[Token::U32(131072u32)]);
assert_ser_tokens(&AtomicUsize::new(655360usize), &[Token::U64(655360u64)]);
}
#[cfg(target_arch = "x86_64")]
#[test]
fn test_atomic64() {
assert_ser_tokens(
&AtomicI64::new(-4295032832i64),
&[Token::I64(-4295032832i64)],
);
assert_ser_tokens(
&AtomicU64::new(12884901888u64),
&[Token::U64(12884901888u64)],
);
}
#[test]
fn test_net_ipv4addr_readable() {
assert_ser_tokens(
&"1.2.3.4".parse::<net::Ipv4Addr>().unwrap().readable(),
&[Token::Str("1.2.3.4")],
);
}
#[test]
fn test_net_ipv6addr_readable() {
assert_ser_tokens(
&"::1".parse::<net::Ipv6Addr>().unwrap().readable(),
&[Token::Str("::1")],
);
}
#[test]
fn test_net_ipaddr_readable() {
assert_ser_tokens(
&"1.2.3.4".parse::<net::IpAddr>().unwrap().readable(),
&[Token::Str("1.2.3.4")],
);
}
#[test]
fn test_net_socketaddr_readable() {
assert_ser_tokens(
&"1.2.3.4:1234"
.parse::<net::SocketAddr>()
.unwrap()
.readable(),
&[Token::Str("1.2.3.4:1234")],
);
assert_ser_tokens(
&"1.2.3.4:1234"
.parse::<net::SocketAddrV4>()
.unwrap()
.readable(),
&[Token::Str("1.2.3.4:1234")],
);
assert_ser_tokens(
&"[::1]:1234"
.parse::<net::SocketAddrV6>()
.unwrap()
.readable(),
&[Token::Str("[::1]:1234")],
);
}
#[test]
fn test_net_ipv4addr_compact() {
assert_ser_tokens(
&net::Ipv4Addr::from(*b"1234").compact(),
&seq![
Token::Tuple { len: 4 },
b"1234".iter().copied().map(Token::U8),
Token::TupleEnd,
],
);
}
#[test]
fn test_net_ipv6addr_compact() {
assert_ser_tokens(
&net::Ipv6Addr::from(*b"1234567890123456").compact(),
&seq![
Token::Tuple { len: 16 },
b"1234567890123456".iter().copied().map(Token::U8),
Token::TupleEnd,
],
);
}
#[test]
fn test_net_ipaddr_compact() {
assert_ser_tokens(
&net::IpAddr::from(*b"1234").compact(),
&seq![
Token::NewtypeVariant {
name: "IpAddr",
variant: "V4"
},
Token::Tuple { len: 4 },
b"1234".iter().copied().map(Token::U8),
Token::TupleEnd,
],
);
}
#[test]
fn test_net_socketaddr_compact() {
assert_ser_tokens(
&net::SocketAddr::from((*b"1234567890123456", 1234)).compact(),
&seq![
Token::NewtypeVariant {
name: "SocketAddr",
variant: "V6"
},
Token::Tuple { len: 2 },
Token::Tuple { len: 16 },
b"1234567890123456".iter().copied().map(Token::U8),
Token::TupleEnd,
Token::U16(1234),
Token::TupleEnd,
],
);
assert_ser_tokens(
&net::SocketAddrV4::new(net::Ipv4Addr::from(*b"1234"), 1234).compact(),
&seq![
Token::Tuple { len: 2 },
Token::Tuple { len: 4 },
b"1234".iter().copied().map(Token::U8),
Token::TupleEnd,
Token::U16(1234),
Token::TupleEnd,
],
);
assert_ser_tokens(
&net::SocketAddrV6::new(net::Ipv6Addr::from(*b"1234567890123456"), 1234, 0, 0).compact(),
&seq![
Token::Tuple { len: 2 },
Token::Tuple { len: 16 },
b"1234567890123456".iter().copied().map(Token::U8),
Token::TupleEnd,
Token::U16(1234),
Token::TupleEnd,
],
);
}
#[cfg(feature = "unstable")]
#[test]
fn test_never_result() {
assert_ser_tokens(
&Ok::<u8, !>(0),
&[
Token::NewtypeVariant {
name: "Result",
variant: "Ok",
},
Token::U8(0),
],
);
}
#[test]
#[cfg(unix)]
fn test_cannot_serialize_paths() {
use std::ffi::OsStr;
use std::os::unix::ffi::OsStrExt;
assert_ser_tokens_error(
&Path::new(OsStr::from_bytes(b"Hello \xF0\x90\x80World")),
&[],
"path contains invalid UTF-8 characters",
);
}
#[test]
fn test_cannot_serialize_mutably_borrowed_ref_cell() {
let ref_cell = RefCell::new(42);
let _reference = ref_cell.borrow_mut();
assert_ser_tokens_error(&ref_cell, &[], "already mutably borrowed");
}
#[test]
fn test_enum_skipped() {
assert_ser_tokens_error(
&Enum::SkippedUnit,
&[],
"the enum variant Enum::SkippedUnit cannot be serialized",
);
assert_ser_tokens_error(
&Enum::SkippedOne(42),
&[],
"the enum variant Enum::SkippedOne cannot be serialized",
);
assert_ser_tokens_error(
&Enum::SkippedSeq(1, 2),
&[],
"the enum variant Enum::SkippedSeq cannot be serialized",
);
assert_ser_tokens_error(
&Enum::SkippedMap { _a: 1, _b: 2 },
&[],
"the enum variant Enum::SkippedMap cannot be serialized",
);
}
#[test]
fn test_integer128() {
assert_ser_tokens_error(&1i128, &[], "i128 is not supported");
assert_ser_tokens_error(&1u128, &[], "u128 is not supported");
}
#[test]
fn test_refcell_dst() {
assert_ser_tokens(
&RefCell::new([true]) as &RefCell<[bool]>,
&[
Token::Seq { len: Some(1) },
Token::Bool(true),
Token::SeqEnd,
],
);
}
#[test]
fn test_mutex_dst() {
assert_ser_tokens(
&Mutex::new([true]) as &Mutex<[bool]>,
&[
Token::Seq { len: Some(1) },
Token::Bool(true),
Token::SeqEnd,
],
);
}
#[test]
fn test_rwlock_dst() {
assert_ser_tokens(
&RwLock::new([true]) as &RwLock<[bool]>,
&[
Token::Seq { len: Some(1) },
Token::Bool(true),
Token::SeqEnd,
],
);
}
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