rhai/src/tests.rs
2023-03-07 16:52:37 +08:00

73 lines
2.0 KiB
Rust

//! Module containing unit tests.
#![cfg(test)]
/// This test is to make sure no code changes increase the sizes of critical data structures.
#[test]
fn check_struct_sizes() {
use crate::*;
use std::mem::size_of;
const IS_32_BIT: bool = cfg!(target_pointer_width = "32");
const PACKED: bool = cfg!(all(
target_pointer_width = "32",
feature = "only_i32",
any(feature = "no_float", feature = "f32_float")
));
const WORD_SIZE: usize = size_of::<usize>();
assert_eq!(size_of::<Dynamic>(), if PACKED { 8 } else { 16 });
assert_eq!(size_of::<Option<Dynamic>>(), if PACKED { 8 } else { 16 });
assert_eq!(
size_of::<Position>(),
if cfg!(feature = "no_position") { 0 } else { 4 }
);
assert_eq!(size_of::<tokenizer::Token>(), 2 * WORD_SIZE);
assert_eq!(size_of::<ast::Expr>(), if PACKED { 12 } else { 16 });
assert_eq!(size_of::<Option<ast::Expr>>(), if PACKED { 12 } else { 16 });
assert_eq!(size_of::<ast::Stmt>(), if IS_32_BIT { 12 } else { 16 });
assert_eq!(
size_of::<Option<ast::Stmt>>(),
if IS_32_BIT { 12 } else { 16 }
);
#[cfg(feature = "internals")]
{
assert_eq!(size_of::<CallableFunction>(), 3 * WORD_SIZE);
assert_eq!(size_of::<module::FuncInfo>(), 4 * WORD_SIZE);
}
// The following only on 64-bit platforms
if !cfg!(target_pointer_width = "64") {
return;
}
assert_eq!(size_of::<Scope>(), 536);
assert_eq!(
size_of::<FnPtr>(),
80 - if cfg!(feature = "no_function") {
WORD_SIZE
} else {
0
}
);
assert_eq!(size_of::<LexError>(), 56);
assert_eq!(
size_of::<ParseError>(),
16 - if cfg!(feature = "no_position") {
WORD_SIZE
} else {
0
}
);
assert_eq!(size_of::<EvalAltResult>(), 64);
assert_eq!(
size_of::<NativeCallContext>(),
56 - if cfg!(feature = "no_position") {
WORD_SIZE
} else {
0
}
);
}