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Add tests for flatten unit variant in adjacently tagged (tag + content) enums

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Mingun 2024-08-03 16:02:38 +05:00 committed by Mingun
parent fe7dcc4cd8
commit c09e2bd690
1 changed files with 165 additions and 0 deletions
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165
test_suite/tests/test_annotations.rs
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@ -2898,6 +2898,7 @@ mod flatten {
#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(tag = "tag", content = "content")]
enum Enum {
Unit,
Newtype(NewtypeVariant),
Struct { index: u32, value: u32 },
}
@ -2907,6 +2908,170 @@ mod flatten {
value: u32,
}
#[test]
fn unit() {
let value = Flatten {
outer: 42,
data: NewtypeWrapper(Enum::Unit),
};
// Field order: outer, [tag]
assert_tokens(
&value,
&[
Token::Map { len: None },
// outer
Token::Str("outer"),
Token::U32(42),
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// content missing
Token::MapEnd,
],
);
// Field order: [tag], outer
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// content missing
// outer
Token::Str("outer"),
Token::U32(42),
Token::MapEnd,
],
);
// Field order: outer, [tag, content]
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// outer
Token::Str("outer"),
Token::U32(42),
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// content
Token::Str("content"),
Token::Unit,
Token::MapEnd,
],
);
// Field order: outer, [content, tag]
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// outer
Token::Str("outer"),
Token::U32(42),
// content
Token::Str("content"),
Token::Unit,
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
Token::MapEnd,
],
);
// Field order: [tag, content], outer
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// content
Token::Str("content"),
Token::Unit,
// outer
Token::Str("outer"),
Token::U32(42),
Token::MapEnd,
],
);
// Field order: [content, tag], outer - did not work
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// content
Token::Str("content"),
Token::Unit,
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// outer
Token::Str("outer"),
Token::U32(42),
Token::MapEnd,
],
);
// Field order: [tag], outer, [content]
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
// outer
Token::Str("outer"),
Token::U32(42),
// content
Token::Str("content"),
Token::Unit,
Token::MapEnd,
],
);
// Field order: [content], outer, [tag] - did not work
assert_de_tokens(
&value,
&[
Token::Map { len: None },
// content
Token::Str("content"),
Token::Unit,
// outer
Token::Str("outer"),
Token::U32(42),
// tag
Token::Str("tag"),
Token::UnitVariant {
name: "Enum",
variant: "Unit",
},
Token::MapEnd,
],
);
}
#[test]
fn newtype() {
let value = Flatten {