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|
use std::vec;
use zvariant::{Array, LE, Type, Value, serialized::Context, to_bytes};
#[macro_use]
mod common {
include!("common.rs");
}
#[test]
fn array_value() {
// Let's use D-Bus/GVariant terms
//
// Array of u8
//
// First a normal Rust array that is actually serialized as a struct (thank you Serde!)
assert_eq!(<[u8; 2]>::SIGNATURE, "(yy)");
let ay = [77u8, 88];
let ctxt = Context::new_dbus(LE, 0);
let encoded = to_bytes(ctxt, &ay).unwrap();
assert_eq!(encoded.len(), 2);
let decoded: [u8; 2] = encoded.deserialize().unwrap().0;
assert_eq!(&decoded, &[77u8, 88]);
// Then rest of the tests just use ArrayVec, heapless::Vec or Vec
#[cfg(feature = "arrayvec")]
let ay = arrayvec::ArrayVec::from([77u8, 88]);
#[cfg(all(not(feature = "arrayvec"), feature = "heapless"))]
let ay = heapless::Vec::<_, 2>::from_slice(&[77u8, 88]).unwrap();
#[cfg(all(not(feature = "arrayvec"), not(feature = "heapless")))]
let ay = vec![77u8, 88];
let ctxt = Context::new_dbus(LE, 0);
let encoded = to_bytes(ctxt, &ay).unwrap();
assert_eq!(encoded.len(), 6);
#[cfg(feature = "arrayvec")]
let decoded: arrayvec::ArrayVec<u8, 2> = encoded.deserialize().unwrap().0;
#[cfg(all(not(feature = "arrayvec"), feature = "heapless"))]
let decoded: heapless::Vec<u8, 2> = encoded.deserialize().unwrap().0;
#[cfg(all(not(feature = "arrayvec"), not(feature = "heapless")))]
let decoded: Vec<u8> = encoded.deserialize().unwrap().0;
assert_eq!(&decoded.as_slice(), &[77u8, 88]);
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let gv_encoded = to_bytes(ctxt, &ay).unwrap();
assert_eq!(gv_encoded.len(), 2);
}
let ctxt = Context::new_dbus(LE, 0);
// As Value
let v: Value<'_> = ay[..].into();
assert_eq!(v.value_signature(), "ay");
let encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(encoded.len(), 10);
let v = encoded.deserialize::<Value<'_>>().unwrap().0;
if let Value::Array(array) = v {
assert_eq!(*array.element_signature(), "y");
assert_eq!(array.len(), 2);
assert_eq!(array.get(0).unwrap(), Some(77u8));
assert_eq!(array.get(1).unwrap(), Some(88u8));
} else {
panic!();
}
// Now try as Vec
let vec = ay.to_vec();
let encoded = to_bytes(ctxt, &vec).unwrap();
assert_eq!(encoded.len(), 6);
// Vec as Value
let v: Value<'_> = Array::from(&vec).into();
assert_eq!(v.value_signature(), "ay");
let encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(encoded.len(), 10);
// Empty array
let at: Vec<u64> = vec![];
let encoded = to_bytes(ctxt, &at).unwrap();
assert_eq!(encoded.len(), 8);
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let gv_encoded = to_bytes(ctxt, &at).unwrap();
assert_eq!(gv_encoded.len(), 0);
let at = encoded.deserialize::<Vec<u64>>().unwrap().0;
assert_eq!(at.len(), 0);
}
let ctxt = Context::new_dbus(LE, 0);
// As Value
let v: Value<'_> = at[..].into();
assert_eq!(v.value_signature(), "at");
let encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(encoded.len(), 8);
let v = encoded.deserialize::<Value<'_>>().unwrap().0;
if let Value::Array(array) = v {
assert_eq!(*array.element_signature(), "t");
assert_eq!(array.len(), 0);
} else {
panic!();
}
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let v: Value<'_> = at[..].into();
let gv_encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(gv_encoded.len(), 3);
let v = gv_encoded.deserialize::<Value<'_>>().unwrap().0;
if let Value::Array(array) = v {
assert_eq!(*array.element_signature(), "t");
assert_eq!(array.len(), 0);
} else {
panic!();
}
}
let ctxt = Context::new_dbus(LE, 0);
//
// Array of strings
//
// Can't use 'as' as it's a keyword
let as_ = vec!["Hello", "World", "Now", "Bye!"];
let encoded = to_bytes(ctxt, &as_).unwrap();
assert_eq!(encoded.len(), 45);
let decoded = encoded.deserialize::<Vec<&str>>().unwrap().0;
assert_eq!(decoded.len(), 4);
assert_eq!(decoded[0], "Hello");
assert_eq!(decoded[1], "World");
let decoded = encoded.deserialize::<Vec<String>>().unwrap().0;
assert_eq!(decoded.as_slice(), as_.as_slice());
// Decode just the second string
let slice = encoded.slice(14..);
let decoded: &str = slice.deserialize().unwrap().0;
assert_eq!(decoded, "World");
// As Value
let v: Value<'_> = as_[..].into();
assert_eq!(v.value_signature(), "as");
let encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(encoded.len(), 49);
let v = encoded.deserialize().unwrap().0;
if let Value::Array(array) = v {
assert_eq!(*array.element_signature(), "s");
assert_eq!(array.len(), 4);
assert_eq!(array[0], Value::new("Hello"));
assert_eq!(array[1], Value::new("World"));
} else {
panic!();
}
let v: Value<'_> = as_[..].into();
let a: Array<'_> = v.try_into().unwrap();
let _ve: Vec<String> = a.try_into().unwrap();
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let v: Value<'_> = as_[..].into();
let gv_encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(gv_encoded.len(), 28);
}
// Array of Struct, which in turn containin an Array (We gotta go deeper!)
// Signature: "a(yu(xbxas)s)");
let ar = vec![(
// top-most simple fields
u8::MAX,
u32::MAX,
(
// 2nd level simple fields
i64::MAX,
true,
i64::MAX,
// 2nd level array field
&["Hello", "World"][..],
),
// one more top-most simple field
"hello",
)];
let ctxt = Context::new_dbus(LE, 0);
let encoded = to_bytes(ctxt, &ar).unwrap();
assert_eq!(encoded.len(), 78);
#[allow(clippy::type_complexity)]
let decoded: Vec<(u8, u32, (i64, bool, i64, Vec<&str>), &str)> =
encoded.deserialize().unwrap().0;
assert_eq!(decoded.len(), 1);
let r = &decoded[0];
assert_eq!(r.0, u8::MAX);
assert_eq!(r.1, u32::MAX);
let inner_r = &r.2;
assert_eq!(inner_r.0, i64::MAX);
assert!(inner_r.1);
assert_eq!(inner_r.2, i64::MAX);
let as_ = &inner_r.3;
assert_eq!(as_.len(), 2);
assert_eq!(as_[0], "Hello");
assert_eq!(as_[1], "World");
assert_eq!(r.3, "hello");
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let gv_encoded = to_bytes(ctxt, &ar).unwrap();
assert_eq!(gv_encoded.len(), 54);
#[allow(clippy::type_complexity)]
let decoded: Vec<(u8, u32, (i64, bool, i64, Vec<&str>), &str)> =
gv_encoded.deserialize().unwrap().0;
assert_eq!(decoded.len(), 1);
let r = &decoded[0];
assert_eq!(r.0, u8::MAX);
assert_eq!(r.1, u32::MAX);
let inner_r = &r.2;
assert_eq!(inner_r.0, i64::MAX);
assert!(inner_r.1);
assert_eq!(inner_r.2, i64::MAX);
let as_ = &inner_r.3;
assert_eq!(as_.len(), 2);
assert_eq!(as_[0], "Hello");
assert_eq!(as_[1], "World");
assert_eq!(r.3, "hello");
}
let ctxt = Context::new_dbus(LE, 0);
// As Value
let v: Value<'_> = ar[..].into();
assert_eq!(v.value_signature(), "a(yu(xbxas)s)");
let encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(encoded.len(), 94);
let v = encoded.deserialize::<Value<'_>>().unwrap().0;
if let Value::Array(array) = v.try_clone().unwrap() {
assert_eq!(*array.element_signature(), "(yu(xbxas)s)");
assert_eq!(array.len(), 1);
let r = &array[0];
if let Value::Structure(r) = r {
let fields = r.fields();
assert_eq!(fields[0], Value::U8(u8::MAX));
assert_eq!(fields[1], Value::U32(u32::MAX));
if let Value::Structure(r) = &fields[2] {
let fields = r.fields();
assert_eq!(fields[0], Value::I64(i64::MAX));
assert_eq!(fields[1], Value::Bool(true));
assert_eq!(fields[2], Value::I64(i64::MAX));
if let Value::Array(as_) = &fields[3] {
assert_eq!(as_.len(), 2);
assert_eq!(as_[0], Value::new("Hello"));
assert_eq!(as_[1], Value::new("World"));
} else {
panic!();
}
} else {
panic!();
}
assert_eq!(fields[3], Value::new("hello"));
} else {
panic!();
}
} else {
panic!();
}
// GVariant format now
#[cfg(feature = "gvariant")]
{
let ctxt = Context::new_gvariant(LE, 0);
let gv_encoded = to_bytes(ctxt, &v).unwrap();
assert_eq!(gv_encoded.len(), 68);
let v: Value<'_> = gv_encoded.deserialize().unwrap().0;
if let Value::Array(array) = v {
assert_eq!(*array.element_signature(), "(yu(xbxas)s)");
assert_eq!(array.len(), 1);
let r = &array.get(0).unwrap().unwrap();
if let Value::Structure(r) = r {
let fields = r.fields();
assert_eq!(fields[0], Value::U8(u8::MAX));
assert_eq!(fields[1], Value::U32(u32::MAX));
if let Value::Structure(r) = &fields[2] {
let fields = r.fields();
assert_eq!(fields[0], Value::I64(i64::MAX));
assert_eq!(fields[1], Value::Bool(true));
assert_eq!(fields[2], Value::I64(i64::MAX));
if let Value::Array(as_) = &fields[3] {
assert_eq!(as_.len(), 2);
assert_eq!(as_.get(0).unwrap(), Some("Hello"));
assert_eq!(as_.get(1).unwrap(), Some("World"));
} else {
panic!();
}
} else {
panic!();
}
assert_eq!(fields[3], Value::new("hello"));
} else {
panic!();
}
} else {
panic!();
}
let mut rng = fastrand::Rng::new();
// Let's test GVariant ser/de of a 254 byte array with variable-width elements as to
// ensure no problems with non-normal BS of GVariant.
let as_ = vec![
std::iter::repeat_with(|| rng.alphanumeric())
.take(126)
.collect::<String>(),
std::iter::repeat_with(|| rng.alphanumeric())
.take(126)
.collect::<String>(),
];
let gv_encoded = to_bytes(ctxt, &as_).unwrap();
// 252 chars + 2 null terminator bytes doesn't leave room for 2 framing offset bytes so
// a 2-byte offset is chosen by the serializer.
assert_eq!(gv_encoded.len(), 258);
// Check if our own deserializer does the right thing
let as2: Vec<String> = gv_encoded.deserialize().unwrap().0;
assert_eq!(as2, as_);
// Test conversion of Array of Value to Vec<Value>
let v = Value::new(vec![Value::new(43), Value::new("bonjour")]);
let av = <Array<'_>>::try_from(v).unwrap();
let av = <Vec<Value<'_>>>::try_from(av).unwrap();
assert_eq!(av[0], Value::new(43));
assert_eq!(av[1], Value::new("bonjour"));
let vec = vec![1, 2];
let val = Value::new(&vec);
assert_eq!(TryInto::<Vec<i32>>::try_into(val).unwrap(), vec);
}
// Empty array should be treated as a unit type, which is encoded as a u8.
assert_eq!(<[u64; 0]>::SIGNATURE, &zvariant::Signature::U8);
let array: [u64; 0] = [];
let encoded = to_bytes(ctxt, &array).unwrap();
assert_eq!(encoded.len(), 1);
assert_eq!(encoded[0], 0);
let _decoded: [u64; 0] = encoded.deserialize().unwrap().0;
}
|
