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denoland-deno/serde_v8/tests/de.rs

318 lines
7.3 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use serde::Deserialize;
use serde_v8::utils::{js_exec, v8_do};
use serde_v8::Buffer;
use serde_v8::ByteString;
use serde_v8::Error;
#[derive(Debug, Deserialize, PartialEq)]
struct MathOp {
pub a: u64,
pub b: u64,
pub operator: Option<String>,
}
#[derive(Debug, PartialEq, Deserialize)]
enum EnumUnit {
A,
B,
C,
}
#[derive(Debug, PartialEq, Deserialize)]
enum EnumPayloads {
UInt(u64),
Int(i64),
Float(f64),
Point { x: i64, y: i64 },
Tuple(bool, i64, ()),
}
fn dedo(
code: &str,
f: impl FnOnce(&mut v8::HandleScope, v8::Local<v8::Value>),
) {
v8_do(|| {
let isolate = &mut v8::Isolate::new(v8::CreateParams::default());
let handle_scope = &mut v8::HandleScope::new(isolate);
let context = v8::Context::new(handle_scope);
let scope = &mut v8::ContextScope::new(handle_scope, context);
let v = js_exec(scope, code);
f(scope, v);
})
}
macro_rules! detest {
($fn_name:ident, $t:ty, $src:expr, $rust:expr) => {
#[test]
fn $fn_name() {
#[allow(clippy::bool_assert_comparison)]
dedo($src, |scope, v| {
let rt = serde_v8::from_v8(scope, v);
assert!(rt.is_ok(), "from_v8(\"{}\"): {:?}", $src, rt.err());
let t: $t = rt.unwrap();
assert_eq!(t, $rust);
});
}
};
}
macro_rules! defail {
($fn_name:ident, $t:ty, $src:expr, $failcase:expr) => {
#[test]
fn $fn_name() {
#[allow(clippy::bool_assert_comparison)]
dedo($src, |scope, v| {
let rt: serde_v8::Result<$t> = serde_v8::from_v8(scope, v);
let rtstr = format!("{:?}", rt);
let failed_as_expected = $failcase(rt);
assert!(
failed_as_expected,
"expected failure on deserialize(\"{}\"), got: {}",
$src, rtstr
);
});
}
};
}
detest!(de_option_some, Option<bool>, "true", Some(true));
detest!(de_option_null, Option<bool>, "null", None);
detest!(de_option_undefined, Option<bool>, "undefined", None);
detest!(de_unit_null, (), "null", ());
detest!(de_unit_undefined, (), "undefined", ());
detest!(de_bool, bool, "true", true);
detest!(de_u64, u64, "32", 32);
detest!(de_string, String, "'Hello'", "Hello".to_owned());
detest!(de_vec_u64, Vec<u64>, "[1,2,3,4,5]", vec![1, 2, 3, 4, 5]);
detest!(
de_vec_str,
Vec<String>,
"['hello', 'world']",
vec!["hello".to_owned(), "world".to_owned()]
);
detest!(
de_tuple,
(u64, bool, ()),
"[123, true, null]",
(123, true, ())
);
detest!(
de_mathop,
MathOp,
"({a: 1, b: 3, c: 'ignored'})",
MathOp {
a: 1,
b: 3,
operator: None
}
);
// Unit enums
detest!(de_enum_unit_a, EnumUnit, "'A'", EnumUnit::A);
detest!(de_enum_unit_b, EnumUnit, "'B'", EnumUnit::B);
detest!(de_enum_unit_c, EnumUnit, "'C'", EnumUnit::C);
// Enums with payloads (tuples & struct)
detest!(
de_enum_payload_int,
EnumPayloads,
"({ Int: -123 })",
EnumPayloads::Int(-123)
);
detest!(
de_enum_payload_uint,
EnumPayloads,
"({ UInt: 123 })",
EnumPayloads::UInt(123)
);
detest!(
de_enum_payload_float,
EnumPayloads,
"({ Float: 1.23 })",
EnumPayloads::Float(1.23)
);
detest!(
de_enum_payload_point,
EnumPayloads,
"({ Point: { x: 1, y: 2 } })",
EnumPayloads::Point { x: 1, y: 2 }
);
detest!(
de_enum_payload_tuple,
EnumPayloads,
"({ Tuple: [true, 123, null ] })",
EnumPayloads::Tuple(true, 123, ())
);
#[test]
fn de_f64() {
dedo("12345.0", |scope, v| {
let x: f64 = serde_v8::from_v8(scope, v).unwrap();
assert!((x - 12345.0).abs() < f64::EPSILON);
});
}
#[test]
fn de_map() {
use std::collections::HashMap;
dedo("({a: 1, b: 2, c: 3})", |scope, v| {
let map: HashMap<String, u64> = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(map.get("a").cloned(), Some(1));
assert_eq!(map.get("b").cloned(), Some(2));
assert_eq!(map.get("c").cloned(), Some(3));
assert_eq!(map.get("nada"), None);
})
}
#[test]
fn de_string_or_buffer() {
dedo("'hello'", |scope, v| {
let sob: serde_v8::StringOrBuffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(sob.as_slice(), &[0x68, 0x65, 0x6C, 0x6C, 0x6F]);
});
dedo("new Uint8Array([97])", |scope, v| {
let sob: serde_v8::StringOrBuffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(sob.as_slice(), &[97]);
});
dedo("new Uint8Array([128])", |scope, v| {
let sob: serde_v8::StringOrBuffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(sob.as_slice(), &[128]);
});
dedo(
"(Uint8Array.from([0x68, 0x65, 0x6C, 0x6C, 0x6F]))",
|scope, v| {
let sob: serde_v8::StringOrBuffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(sob.as_slice(), &[0x68, 0x65, 0x6C, 0x6C, 0x6F]);
},
);
}
#[test]
fn de_buffers() {
// ArrayBufferView
dedo("new Uint8Array([97])", |scope, v| {
let buf: Buffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(&*buf, &[97]);
});
// ArrayBuffer
dedo("(new Uint8Array([97])).buffer", |scope, v| {
let buf: Buffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(&*buf, &[97]);
});
dedo(
"(Uint8Array.from([0x68, 0x65, 0x6C, 0x6C, 0x6F]))",
|scope, v| {
let buf: Buffer = serde_v8::from_v8(scope, v).unwrap();
assert_eq!(&*buf, &[0x68, 0x65, 0x6C, 0x6C, 0x6F]);
},
);
}
////
// JSON tests: serde_json::Value compatibility
////
detest!(
de_json_null,
serde_json::Value,
"null",
serde_json::Value::Null
);
detest!(
de_json_bool,
serde_json::Value,
"true",
serde_json::Value::Bool(true)
);
detest!(
de_json_int,
serde_json::Value,
"123",
serde_json::Value::Number(serde_json::Number::from(123))
);
detest!(
de_json_float,
serde_json::Value,
"123.45",
serde_json::Value::Number(serde_json::Number::from_f64(123.45).unwrap())
);
detest!(
de_json_string,
serde_json::Value,
"'Hello'",
serde_json::Value::String("Hello".to_string())
);
detest!(
de_json_vec_string,
serde_json::Value,
"['Hello', 'World']",
serde_json::Value::Array(vec![
serde_json::Value::String("Hello".to_string()),
serde_json::Value::String("World".to_string())
])
);
detest!(
de_json_tuple,
serde_json::Value,
"[true, 'World', 123.45, null]",
serde_json::Value::Array(vec![
serde_json::Value::Bool(true),
serde_json::Value::String("World".to_string()),
serde_json::Value::Number(serde_json::Number::from_f64(123.45).unwrap()),
serde_json::Value::Null,
])
);
detest!(
de_json_object,
serde_json::Value,
"({a: 1, b: 'hello', c: true})",
serde_json::Value::Object(
vec![
(
"a".to_string(),
serde_json::Value::Number(serde_json::Number::from(1)),
),
(
"b".to_string(),
serde_json::Value::String("hello".to_string()),
),
("c".to_string(), serde_json::Value::Bool(true),),
]
.drain(..)
.collect()
)
);
detest!(de_bigint_u64, u64, "BigInt(2**59)", 1 << 59);
detest!(de_bigint_i64, i64, "BigInt(-(2**59))", -(1 << 59));
defail!(defail_struct, MathOp, "123", |e| e
== Err(Error::ExpectedObject));
#[derive(PartialEq, Debug, Deserialize)]
pub struct SomeThing {
pub a: String,
#[serde(default)]
pub b: String,
}
detest!(
de_struct_defaults,
SomeThing,
"({ a: 'hello' })",
SomeThing {
a: "hello".into(),
b: "".into()
}
);
detest!(de_bstr, ByteString, "'hello'", ByteString("hello".into()));
defail!(defail_bstr, ByteString, "'👋bye'", |e| e
== Err(Error::ExpectedLatin1));