1045 lines
23 KiB
Rust
1045 lines
23 KiB
Rust
// Copyright 2017 Serde Developers
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[macro_use]
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extern crate serde_derive;
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extern crate serde;
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use self::serde::{Serialize, Serializer, Deserialize, Deserializer};
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extern crate serde_test;
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use self::serde_test::{Token, assert_tokens, assert_ser_tokens, assert_de_tokens,
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assert_de_tokens_error};
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trait MyDefault: Sized {
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fn my_default() -> Self;
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}
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trait ShouldSkip: Sized {
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fn should_skip(&self) -> bool;
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}
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trait SerializeWith: Sized {
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fn serialize_with<S>(&self, ser: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer;
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}
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trait DeserializeWith: Sized {
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fn deserialize_with<'de, D>(de: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'de>;
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}
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impl MyDefault for i32 {
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fn my_default() -> Self {
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123
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}
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}
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impl ShouldSkip for i32 {
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fn should_skip(&self) -> bool {
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*self == 123
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}
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}
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impl SerializeWith for i32 {
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fn serialize_with<S>(&self, ser: S) -> Result<S::Ok, S::Error>
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where
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S: Serializer,
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{
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if *self == 123 {
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true.serialize(ser)
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} else {
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false.serialize(ser)
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}
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}
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}
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impl DeserializeWith for i32 {
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fn deserialize_with<'de, D>(de: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'de>,
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{
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if try!(Deserialize::deserialize(de)) {
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Ok(123)
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} else {
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Ok(2)
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}
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}
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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struct DefaultStruct<A, B, C, D, E>
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where
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C: MyDefault,
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E: MyDefault,
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{
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a1: A,
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#[serde(default)]
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a2: B,
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#[serde(default="MyDefault::my_default")]
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a3: C,
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#[serde(skip_deserializing)]
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a4: D,
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#[serde(skip_deserializing, default="MyDefault::my_default")]
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a5: E,
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}
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#[test]
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fn test_default_struct() {
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assert_de_tokens(
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&DefaultStruct {
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a1: 1,
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a2: 2,
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a3: 3,
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a4: 0,
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a5: 123,
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},
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&[
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Token::Struct { name: "DefaultStruct", len: 3 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("a2"),
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Token::I32(2),
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Token::Str("a3"),
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Token::I32(3),
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Token::Str("a4"),
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Token::I32(4),
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Token::Str("a5"),
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Token::I32(5),
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Token::StructEnd,
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],
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);
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assert_de_tokens(
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&DefaultStruct {
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a1: 1,
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a2: 0,
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a3: 123,
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a4: 0,
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a5: 123,
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},
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&[
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Token::Struct { name: "DefaultStruct", len: 1 },
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Token::Str("a1"),
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Token::I32(1),
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Token::StructEnd,
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],
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);
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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enum DefaultEnum<A, B, C, D, E>
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where
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C: MyDefault,
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E: MyDefault,
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{
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Struct {
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a1: A,
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#[serde(default)]
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a2: B,
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#[serde(default="MyDefault::my_default")]
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a3: C,
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#[serde(skip_deserializing)]
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a4: D,
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#[serde(skip_deserializing, default="MyDefault::my_default")]
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a5: E,
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},
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}
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#[test]
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fn test_default_enum() {
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assert_de_tokens(
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&DefaultEnum::Struct {
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a1: 1,
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a2: 2,
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a3: 3,
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a4: 0,
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a5: 123,
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},
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&[
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Token::StructVariant { name: "DefaultEnum", variant: "Struct", len: 3 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("a2"),
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Token::I32(2),
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Token::Str("a3"),
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Token::I32(3),
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Token::Str("a4"),
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Token::I32(4),
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Token::Str("a5"),
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Token::I32(5),
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Token::StructVariantEnd,
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],
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);
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assert_de_tokens(
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&DefaultEnum::Struct {
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a1: 1,
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a2: 0,
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a3: 123,
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a4: 0,
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a5: 123,
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},
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&[
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Token::StructVariant { name: "DefaultEnum", variant: "Struct", len: 3 },
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Token::Str("a1"),
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Token::I32(1),
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Token::StructVariantEnd,
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],
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);
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}
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// Does not implement std::default::Default.
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#[derive(Debug, PartialEq, Deserialize)]
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struct NoStdDefault(i8);
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impl MyDefault for NoStdDefault {
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fn my_default() -> Self {
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NoStdDefault(123)
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}
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}
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#[derive(Debug, PartialEq, Deserialize)]
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struct ContainsNoStdDefault<A: MyDefault> {
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#[serde(default="MyDefault::my_default")]
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a: A,
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}
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// Tests that a struct field does not need to implement std::default::Default if
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// it is annotated with `default=...`.
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#[test]
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fn test_no_std_default() {
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assert_de_tokens(
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&ContainsNoStdDefault { a: NoStdDefault(123) },
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&[Token::Struct { name: "ContainsNoStdDefault", len: 1 }, Token::StructEnd],
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);
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assert_de_tokens(
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&ContainsNoStdDefault { a: NoStdDefault(8) },
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&[
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Token::Struct { name: "ContainsNoStdDefault", len: 1 },
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Token::Str("a"),
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Token::NewtypeStruct { name: "NoStdDefault" },
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Token::I8(8),
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Token::StructEnd,
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],
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);
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}
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// Does not implement Deserialize.
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#[derive(Debug, PartialEq)]
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struct NotDeserializeStruct(i8);
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impl Default for NotDeserializeStruct {
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fn default() -> Self {
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NotDeserializeStruct(123)
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}
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}
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impl DeserializeWith for NotDeserializeStruct {
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fn deserialize_with<'de, D>(_: D) -> Result<Self, D::Error>
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where
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D: Deserializer<'de>,
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{
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panic!()
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}
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}
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// Does not implement Deserialize.
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#[derive(Debug, PartialEq)]
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enum NotDeserializeEnum {
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Trouble,
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}
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impl MyDefault for NotDeserializeEnum {
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fn my_default() -> Self {
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NotDeserializeEnum::Trouble
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}
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}
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#[derive(Debug, PartialEq, Deserialize)]
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struct ContainsNotDeserialize<A, B, C: DeserializeWith, E: MyDefault> {
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#[serde(skip_deserializing)]
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a: A,
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#[serde(skip_deserializing, default)]
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b: B,
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#[serde(deserialize_with="DeserializeWith::deserialize_with", default)]
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c: C,
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#[serde(skip_deserializing, default="MyDefault::my_default")]
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e: E,
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}
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// Tests that a struct field does not need to implement Deserialize if it is
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// annotated with skip_deserializing, whether using the std Default or a
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// custom default.
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#[test]
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fn test_elt_not_deserialize() {
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assert_de_tokens(
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&ContainsNotDeserialize {
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a: NotDeserializeStruct(123),
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b: NotDeserializeStruct(123),
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c: NotDeserializeStruct(123),
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e: NotDeserializeEnum::Trouble,
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},
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&[Token::Struct { name: "ContainsNotDeserialize", len: 3 }, Token::StructEnd],
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);
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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#[serde(deny_unknown_fields)]
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struct DenyUnknown {
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a1: i32,
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}
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#[test]
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fn test_ignore_unknown() {
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// 'Default' allows unknown. Basic smoke test of ignore...
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assert_de_tokens(
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&DefaultStruct {
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a1: 1,
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a2: 2,
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a3: 3,
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a4: 0,
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a5: 123,
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},
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&[
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Token::Struct { name: "DefaultStruct", len: 5 },
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Token::Str("whoops1"),
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Token::I32(2),
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("whoops2"),
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Token::Seq { len: Some(1) },
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Token::I32(2),
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Token::SeqEnd,
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Token::Str("a2"),
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Token::I32(2),
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Token::Str("whoops3"),
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Token::I32(2),
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Token::Str("a3"),
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Token::I32(3),
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Token::StructEnd,
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],
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);
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assert_de_tokens_error::<DenyUnknown>(
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&[
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Token::Struct { name: "DenyUnknown", len: 2 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("whoops"),
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],
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"unknown field `whoops`, expected `a1`",
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);
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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#[serde(rename="Superhero")]
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struct RenameStruct {
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a1: i32,
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#[serde(rename="a3")]
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a2: i32,
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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#[serde(rename(serialize="SuperheroSer", deserialize="SuperheroDe"))]
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struct RenameStructSerializeDeserialize {
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a1: i32,
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#[serde(rename(serialize="a4", deserialize="a5"))]
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a2: i32,
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}
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#[test]
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fn test_rename_struct() {
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assert_tokens(
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&RenameStruct { a1: 1, a2: 2 },
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&[
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Token::Struct { name: "Superhero", len: 2 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("a3"),
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Token::I32(2),
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Token::StructEnd,
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],
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);
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assert_ser_tokens(
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&RenameStructSerializeDeserialize { a1: 1, a2: 2 },
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&[
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Token::Struct { name: "SuperheroSer", len: 2 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("a4"),
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Token::I32(2),
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Token::StructEnd,
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],
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);
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assert_de_tokens(
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&RenameStructSerializeDeserialize { a1: 1, a2: 2 },
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&[
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Token::Struct { name: "SuperheroDe", len: 2 },
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Token::Str("a1"),
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Token::I32(1),
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Token::Str("a5"),
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Token::I32(2),
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Token::StructEnd,
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],
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);
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}
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#[derive(Debug, PartialEq, Serialize, Deserialize)]
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#[serde(rename="Superhero")]
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enum RenameEnum {
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#[serde(rename="bruce_wayne")]
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Batman,
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#[serde(rename="clark_kent")]
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Superman(i8),
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#[serde(rename="diana_prince")]
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WonderWoman(i8, i8),
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#[serde(rename="barry_allan")]
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Flash {
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#[serde(rename="b")]
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a: i32,
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},
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}
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#[derive(Debug, PartialEq, Deserialize, Serialize)]
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#[serde(rename(serialize="SuperheroSer", deserialize="SuperheroDe"))]
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enum RenameEnumSerializeDeserialize<A> {
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#[serde(rename(serialize="dick_grayson", deserialize="jason_todd"))]
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Robin {
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a: i8,
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#[serde(rename(serialize="c"))]
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#[serde(rename(deserialize="d"))]
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b: A,
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},
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}
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#[test]
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fn test_rename_enum() {
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assert_tokens(
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&RenameEnum::Batman,
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&[Token::UnitVariant { name: "Superhero", variant: "bruce_wayne" }],
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);
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assert_tokens(
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&RenameEnum::Superman(0),
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&[
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Token::NewtypeVariant { name: "Superhero", variant: "clark_kent" },
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Token::I8(0),
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],
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);
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assert_tokens(
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&RenameEnum::WonderWoman(0, 1),
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&[
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Token::TupleVariant { name: "Superhero", variant: "diana_prince", len: 2 },
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Token::I8(0),
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Token::I8(1),
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Token::TupleVariantEnd,
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],
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);
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assert_tokens(
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&RenameEnum::Flash { a: 1 },
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&[
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Token::StructVariant { name: "Superhero", variant: "barry_allan", len: 1 },
|
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|
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Token::Str("b"),
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Token::I32(1),
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Token::StructVariantEnd,
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],
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);
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assert_ser_tokens(
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&RenameEnumSerializeDeserialize::Robin {
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a: 0,
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b: String::new(),
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},
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&[
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Token::StructVariant { name: "SuperheroSer", variant: "dick_grayson", len: 2 },
|
|
|
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Token::Str("a"),
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Token::I8(0),
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|
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|
Token::Str("c"),
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Token::Str(""),
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Token::StructVariantEnd,
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],
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);
|
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assert_de_tokens(
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&RenameEnumSerializeDeserialize::Robin {
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a: 0,
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b: String::new(),
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},
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&[
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Token::StructVariant { name: "SuperheroDe", variant: "jason_todd", len: 2 },
|
|
|
|
Token::Str("a"),
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Token::I8(0),
|
|
|
|
Token::Str("d"),
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|
Token::Str(""),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize)]
|
|
struct SkipSerializingStruct<'a, B, C>
|
|
where
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|
C: ShouldSkip,
|
|
{
|
|
a: &'a i8,
|
|
#[serde(skip_serializing)]
|
|
b: B,
|
|
#[serde(skip_serializing_if="ShouldSkip::should_skip")]
|
|
c: C,
|
|
}
|
|
|
|
#[test]
|
|
fn test_skip_serializing_struct() {
|
|
let a = 1;
|
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assert_ser_tokens(
|
|
&SkipSerializingStruct { a: &a, b: 2, c: 3 },
|
|
&[
|
|
Token::Struct { name: "SkipSerializingStruct", len: 2 },
|
|
|
|
Token::Str("a"),
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|
Token::I8(1),
|
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|
|
Token::Str("c"),
|
|
Token::I32(3),
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|
|
Token::StructEnd,
|
|
],
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|
);
|
|
|
|
assert_ser_tokens(
|
|
&SkipSerializingStruct {
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a: &a,
|
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b: 2,
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c: 123,
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},
|
|
&[
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|
Token::Struct { name: "SkipSerializingStruct", len: 1 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
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|
|
Token::StructEnd,
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|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize, Deserialize)]
|
|
struct SkipStruct<B>
|
|
{
|
|
a: i8,
|
|
#[serde(skip)]
|
|
b: B,
|
|
}
|
|
|
|
#[test]
|
|
fn test_skip_struct() {
|
|
assert_ser_tokens(
|
|
&SkipStruct { a: 1, b: 2 },
|
|
&[
|
|
Token::Struct { name: "SkipStruct", len: 1 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
|
|
assert_de_tokens(
|
|
&SkipStruct { a: 1, b: 0 },
|
|
&[
|
|
Token::Struct { name: "SkipStruct", len: 1 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize)]
|
|
enum SkipSerializingEnum<'a, B, C>
|
|
where
|
|
C: ShouldSkip,
|
|
{
|
|
Struct {
|
|
a: &'a i8,
|
|
#[serde(skip_serializing)]
|
|
_b: B,
|
|
#[serde(skip_serializing_if="ShouldSkip::should_skip")]
|
|
c: C,
|
|
},
|
|
}
|
|
|
|
#[test]
|
|
fn test_skip_serializing_enum() {
|
|
let a = 1;
|
|
assert_ser_tokens(
|
|
&SkipSerializingEnum::Struct { a: &a, _b: 2, c: 3 },
|
|
&[
|
|
Token::StructVariant { name: "SkipSerializingEnum", variant: "Struct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("c"),
|
|
Token::I32(3),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
|
|
assert_ser_tokens(
|
|
&SkipSerializingEnum::Struct {
|
|
a: &a,
|
|
_b: 2,
|
|
c: 123,
|
|
},
|
|
&[
|
|
Token::StructVariant { name: "SkipSerializingEnum", variant: "Struct", len: 1 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq)]
|
|
struct NotSerializeStruct(i8);
|
|
|
|
#[derive(Debug, PartialEq)]
|
|
enum NotSerializeEnum {
|
|
Trouble,
|
|
}
|
|
|
|
impl SerializeWith for NotSerializeEnum {
|
|
fn serialize_with<S>(&self, ser: S) -> Result<S::Ok, S::Error>
|
|
where
|
|
S: Serializer,
|
|
{
|
|
"trouble".serialize(ser)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize)]
|
|
struct ContainsNotSerialize<'a, B, C, D>
|
|
where
|
|
B: 'a,
|
|
D: SerializeWith,
|
|
{
|
|
a: &'a Option<i8>,
|
|
#[serde(skip_serializing)]
|
|
b: &'a B,
|
|
#[serde(skip_serializing)]
|
|
c: Option<C>,
|
|
#[serde(serialize_with="SerializeWith::serialize_with")]
|
|
d: D,
|
|
}
|
|
|
|
#[test]
|
|
fn test_elt_not_serialize() {
|
|
let a = 1;
|
|
assert_ser_tokens(
|
|
&ContainsNotSerialize {
|
|
a: &Some(a),
|
|
b: &NotSerializeStruct(2),
|
|
c: Some(NotSerializeEnum::Trouble),
|
|
d: NotSerializeEnum::Trouble,
|
|
},
|
|
&[
|
|
Token::Struct { name: "ContainsNotSerialize", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::Some,
|
|
Token::I8(1),
|
|
|
|
Token::Str("d"),
|
|
Token::Str("trouble"),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize)]
|
|
struct SerializeWithStruct<'a, B>
|
|
where
|
|
B: SerializeWith,
|
|
{
|
|
a: &'a i8,
|
|
#[serde(serialize_with="SerializeWith::serialize_with")]
|
|
b: B,
|
|
}
|
|
|
|
#[test]
|
|
fn test_serialize_with_struct() {
|
|
let a = 1;
|
|
assert_ser_tokens(
|
|
&SerializeWithStruct { a: &a, b: 2 },
|
|
&[
|
|
Token::Struct { name: "SerializeWithStruct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(false),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
|
|
assert_ser_tokens(
|
|
&SerializeWithStruct { a: &a, b: 123 },
|
|
&[
|
|
Token::Struct { name: "SerializeWithStruct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(true),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Serialize)]
|
|
enum SerializeWithEnum<'a, B>
|
|
where
|
|
B: SerializeWith,
|
|
{
|
|
Struct {
|
|
a: &'a i8,
|
|
#[serde(serialize_with="SerializeWith::serialize_with")]
|
|
b: B,
|
|
},
|
|
}
|
|
|
|
#[test]
|
|
fn test_serialize_with_enum() {
|
|
let a = 1;
|
|
assert_ser_tokens(
|
|
&SerializeWithEnum::Struct { a: &a, b: 2 },
|
|
&[
|
|
Token::StructVariant { name: "SerializeWithEnum", variant: "Struct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(false),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
|
|
assert_ser_tokens(
|
|
&SerializeWithEnum::Struct { a: &a, b: 123 },
|
|
&[
|
|
Token::StructVariant { name: "SerializeWithEnum", variant: "Struct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(true),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Deserialize)]
|
|
struct DeserializeWithStruct<B>
|
|
where
|
|
B: DeserializeWith,
|
|
{
|
|
a: i8,
|
|
#[serde(deserialize_with="DeserializeWith::deserialize_with")]
|
|
b: B,
|
|
}
|
|
|
|
#[test]
|
|
fn test_deserialize_with_struct() {
|
|
assert_de_tokens(
|
|
&DeserializeWithStruct { a: 1, b: 2 },
|
|
&[
|
|
Token::Struct { name: "DeserializeWithStruct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(false),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
|
|
assert_de_tokens(
|
|
&DeserializeWithStruct { a: 1, b: 123 },
|
|
&[
|
|
Token::Struct { name: "DeserializeWithStruct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(true),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Deserialize)]
|
|
enum DeserializeWithEnum<B>
|
|
where
|
|
B: DeserializeWith,
|
|
{
|
|
Struct {
|
|
a: i8,
|
|
#[serde(deserialize_with="DeserializeWith::deserialize_with")]
|
|
b: B,
|
|
},
|
|
}
|
|
|
|
#[test]
|
|
fn test_deserialize_with_enum() {
|
|
assert_de_tokens(
|
|
&DeserializeWithEnum::Struct { a: 1, b: 2 },
|
|
&[
|
|
Token::StructVariant { name: "DeserializeWithEnum", variant: "Struct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(false),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
|
|
assert_de_tokens(
|
|
&DeserializeWithEnum::Struct { a: 1, b: 123 },
|
|
&[
|
|
Token::StructVariant { name: "DeserializeWithEnum", variant: "Struct", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(1),
|
|
|
|
Token::Str("b"),
|
|
Token::Bool(true),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_missing_renamed_field_struct() {
|
|
assert_de_tokens_error::<RenameStruct>(
|
|
&[
|
|
Token::Struct { name: "Superhero", len: 2 },
|
|
|
|
Token::Str("a1"),
|
|
Token::I32(1),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
"missing field `a3`",
|
|
);
|
|
|
|
assert_de_tokens_error::<RenameStructSerializeDeserialize>(
|
|
&[
|
|
Token::Struct { name: "SuperheroDe", len: 2 },
|
|
|
|
Token::Str("a1"),
|
|
Token::I32(1),
|
|
|
|
Token::StructEnd,
|
|
],
|
|
"missing field `a5`",
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_missing_renamed_field_enum() {
|
|
assert_de_tokens_error::<RenameEnum>(
|
|
&[
|
|
Token::StructVariant { name: "Superhero", variant: "barry_allan", len: 1 },
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
"missing field `b`",
|
|
);
|
|
|
|
assert_de_tokens_error::<RenameEnumSerializeDeserialize<i8>>(
|
|
&[
|
|
Token::StructVariant { name: "SuperheroDe", variant: "jason_todd", len: 2 },
|
|
|
|
Token::Str("a"),
|
|
Token::I8(0),
|
|
|
|
Token::StructVariantEnd,
|
|
],
|
|
"missing field `d`",
|
|
);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Deserialize)]
|
|
enum InvalidLengthEnum {
|
|
A(i32, i32, i32),
|
|
B(
|
|
#[serde(skip_deserializing)]
|
|
i32,
|
|
i32,
|
|
i32
|
|
),
|
|
}
|
|
|
|
#[test]
|
|
fn test_invalid_length_enum() {
|
|
assert_de_tokens_error::<InvalidLengthEnum>(
|
|
&[
|
|
Token::TupleVariant { name: "InvalidLengthEnum", variant: "A", len: 3 },
|
|
Token::I32(1),
|
|
Token::TupleVariantEnd,
|
|
],
|
|
"invalid length 1, expected tuple of 3 elements",
|
|
);
|
|
assert_de_tokens_error::<InvalidLengthEnum>(
|
|
&[
|
|
Token::TupleVariant { name: "InvalidLengthEnum", variant: "B", len: 3 },
|
|
Token::I32(1),
|
|
Token::TupleVariantEnd,
|
|
],
|
|
"invalid length 1, expected tuple of 2 elements",
|
|
);
|
|
}
|
|
|
|
#[derive(Clone, Serialize, Deserialize, PartialEq, Debug)]
|
|
#[serde(into="EnumToU32", from="EnumToU32")]
|
|
struct StructFromEnum(Option<u32>);
|
|
|
|
impl Into<EnumToU32> for StructFromEnum {
|
|
fn into(self) -> EnumToU32 {
|
|
match self {
|
|
StructFromEnum(v) => v.into(),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<EnumToU32> for StructFromEnum {
|
|
fn from(v: EnumToU32) -> Self {
|
|
StructFromEnum(v.into())
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Serialize, Deserialize, PartialEq, Debug)]
|
|
#[serde(into="Option<u32>", from="Option<u32>")]
|
|
enum EnumToU32 {
|
|
One,
|
|
Two,
|
|
Three,
|
|
Four,
|
|
Nothing,
|
|
}
|
|
|
|
impl Into<Option<u32>> for EnumToU32 {
|
|
fn into(self) -> Option<u32> {
|
|
match self {
|
|
EnumToU32::One => Some(1),
|
|
EnumToU32::Two => Some(2),
|
|
EnumToU32::Three => Some(3),
|
|
EnumToU32::Four => Some(4),
|
|
EnumToU32::Nothing => None,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl From<Option<u32>> for EnumToU32 {
|
|
fn from(v: Option<u32>) -> Self {
|
|
match v {
|
|
Some(1) => EnumToU32::One,
|
|
Some(2) => EnumToU32::Two,
|
|
Some(3) => EnumToU32::Three,
|
|
Some(4) => EnumToU32::Four,
|
|
_ => EnumToU32::Nothing,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_from_into_traits() {
|
|
assert_ser_tokens::<EnumToU32>(&EnumToU32::One, &[Token::Some, Token::U32(1)]);
|
|
assert_ser_tokens::<EnumToU32>(&EnumToU32::Nothing, &[Token::None]);
|
|
assert_de_tokens::<EnumToU32>(&EnumToU32::Two, &[Token::Some, Token::U32(2)]);
|
|
assert_ser_tokens::<StructFromEnum>(&StructFromEnum(Some(5)), &[Token::None]);
|
|
assert_ser_tokens::<StructFromEnum>(&StructFromEnum(None), &[Token::None]);
|
|
assert_de_tokens::<StructFromEnum>(&StructFromEnum(Some(2)), &[Token::Some, Token::U32(2)]);
|
|
}
|