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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /gfx/wr/peek-poke/tests/max_size.rs | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/wr/peek-poke/tests/max_size.rs')
-rw-r--r-- | gfx/wr/peek-poke/tests/max_size.rs | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/gfx/wr/peek-poke/tests/max_size.rs b/gfx/wr/peek-poke/tests/max_size.rs new file mode 100644 index 0000000000..67cd1ca4a6 --- /dev/null +++ b/gfx/wr/peek-poke/tests/max_size.rs @@ -0,0 +1,117 @@ +// Copyright 2019 The Servo Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or +// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license +// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#![allow(dead_code)] + +use peek_poke::{PeekPoke, Poke}; +use std::{marker::PhantomData, mem::size_of}; + +#[test] +fn test_numbers() { + assert_eq!(u8::max_size(), size_of::<u8>()); + assert_eq!(u16::max_size(), size_of::<u16>()); + assert_eq!(u32::max_size(), size_of::<u32>()); + assert_eq!(u64::max_size(), size_of::<u64>()); + assert_eq!(usize::max_size(), size_of::<usize>()); + assert_eq!(i8::max_size(), size_of::<i8>()); + assert_eq!(i16::max_size(), size_of::<i16>()); + assert_eq!(i32::max_size(), size_of::<i32>()); + assert_eq!(i64::max_size(), size_of::<i64>()); + assert_eq!(isize::max_size(), size_of::<isize>()); + // floating + assert_eq!(f32::max_size(), size_of::<f32>()); + assert_eq!(f64::max_size(), size_of::<f64>()); +} + +#[test] +fn test_bool() { + assert_eq!(bool::max_size(), size_of::<u8>()); +} + +#[test] +fn test_option() { + assert_eq!( + Option::<usize>::max_size(), + <u8>::max_size() + <usize>::max_size() + ); +} + +#[test] +fn test_fixed_size_array() { + assert_eq!(<[u32; 32]>::max_size(), 32 * size_of::<u32>()); + assert_eq!(<[u64; 8]>::max_size(), 8 * size_of::<u64>()); + assert_eq!(<[u8; 19]>::max_size(), 19 * size_of::<u8>()); +} + +#[test] +fn test_tuple() { + assert_eq!(<(isize, )>::max_size(), size_of::<isize>()); + assert_eq!(<(isize, isize, isize)>::max_size(), 3 * size_of::<isize>()); + assert_eq!(<(isize, ())>::max_size(), size_of::<isize>()); +} + +#[test] +fn test_basic_struct() { + #[derive(Debug, PeekPoke)] + struct Bar { + a: u32, + b: u32, + c: u32, + } + + assert_eq!(<Bar>::max_size(), 3 * <u32>::max_size()); +} + +#[test] +fn test_enum() { + #[derive(Clone, Copy, PeekPoke)] + enum TestEnum { + NoArg, + OneArg(usize), + Args(usize, usize), + AnotherNoArg, + StructLike { x: usize, y: f32 }, + } + assert_eq!( + TestEnum::max_size(), + <u8>::max_size() + 2 * <usize>::max_size() + ); +} + +#[test] +fn test_enum_cstyle() { + #[repr(u32)] + #[derive(Clone, Copy, PeekPoke)] + enum BorderStyle { + None = 0, + Solid = 1, + Double = 2, + Dotted = 3, + Dashed = 4, + Hidden = 5, + Groove = 6, + Ridge = 7, + Inset = 8, + Outset = 9, + } + assert_eq!(BorderStyle::max_size(), <u8>::max_size()); +} + +#[test] +fn test_phantom_data() { + struct Bar; + #[derive(PeekPoke)] + struct Foo { + x: u32, + y: u32, + _marker: PhantomData<Bar>, + } + assert_eq!(Foo::max_size(), 2 * size_of::<u32>()) +} |