use super::*;
use crate::{parser::*, Flags};
#[test]
#[cfg(not(miri))] // Very slow in miri
fn roundtrip() {
let mut s = String::new();
for a in 0u8..=255 {
for b in 0u8..=255 {
let f = TestFlags::from_bits_retain(a | b);
s.clear();
to_writer(&f, &mut s).unwrap();
assert_eq!(f, from_str::<TestFlags>(&s).unwrap());
}
}
}
#[test]
#[cfg(not(miri))] // Very slow in miri
fn roundtrip_truncate() {
let mut s = String::new();
for a in 0u8..=255 {
for b in 0u8..=255 {
let f = TestFlags::from_bits_retain(a | b);
s.clear();
to_writer_truncate(&f, &mut s).unwrap();
assert_eq!(
TestFlags::from_bits_truncate(f.bits()),
from_str_truncate::<TestFlags>(&s).unwrap()
);
}
}
}
#[test]
#[cfg(not(miri))] // Very slow in miri
fn roundtrip_strict() {
let mut s = String::new();
for a in 0u8..=255 {
for b in 0u8..=255 {
let f = TestFlags::from_bits_retain(a | b);
s.clear();
to_writer_strict(&f, &mut s).unwrap();
let mut strict = TestFlags::empty();
for (_, flag) in f.iter_names() {
strict |= flag;
}
let f = strict;
if let Ok(s) = from_str_strict::<TestFlags>(&s) {
assert_eq!(f, s);
}
}
}
}
mod from_str {
use super::*;
#[test]
fn valid() {
assert_eq!(0, from_str::<TestFlags>("").unwrap().bits());
assert_eq!(1, from_str::<TestFlags>("A").unwrap().bits());
assert_eq!(1, from_str::<TestFlags>(" A ").unwrap().bits());
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str::<TestFlags>("A | B | C").unwrap().bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str::<TestFlags>("A\n|\tB\r\n| C ").unwrap().bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str::<TestFlags>("A|B|C").unwrap().bits()
);
assert_eq!(1 << 3, from_str::<TestFlags>("0x8").unwrap().bits());
assert_eq!(1 | 1 << 3, from_str::<TestFlags>("A | 0x8").unwrap().bits());
assert_eq!(
1 | 1 << 1 | 1 << 3,
from_str::<TestFlags>("0x1 | 0x8 | B").unwrap().bits()
);
assert_eq!(
1 | 1 << 1,
from_str::<TestUnicode>("一 | 二").unwrap().bits()
);
}
#[test]
fn invalid() {
assert!(from_str::<TestFlags>("a")
.unwrap_err()
.to_string()
.starts_with("unrecognized named flag"));
assert!(from_str::<TestFlags>("A & B")
.unwrap_err()
.to_string()
.starts_with("unrecognized named flag"));
assert!(from_str::<TestFlags>("0xg")
.unwrap_err()
.to_string()
.starts_with("invalid hex flag"));
assert!(from_str::<TestFlags>("0xffffffffffff")
.unwrap_err()
.to_string()
.starts_with("invalid hex flag"));
}
}
mod to_writer {
use super::*;
#[test]
fn cases() {
assert_eq!("", write(TestFlags::empty()));
assert_eq!("A", write(TestFlags::A));
assert_eq!("A | B | C", write(TestFlags::all()));
assert_eq!("0x8", write(TestFlags::from_bits_retain(1 << 3)));
assert_eq!(
"A | 0x8",
write(TestFlags::A | TestFlags::from_bits_retain(1 << 3))
);
assert_eq!("", write(TestZero::ZERO));
assert_eq!("ABC", write(TestFlagsInvert::all()));
assert_eq!("0x1", write(TestOverlapping::from_bits_retain(1)));
assert_eq!("A", write(TestOverlappingFull::C));
assert_eq!(
"A | D",
write(TestOverlappingFull::C | TestOverlappingFull::D)
);
}
fn write<F: Flags>(value: F) -> String
where
F::Bits: crate::parser::WriteHex,
{
let mut s = String::new();
to_writer(&value, &mut s).unwrap();
s
}
}
mod from_str_truncate {
use super::*;
#[test]
fn valid() {
assert_eq!(0, from_str_truncate::<TestFlags>("").unwrap().bits());
assert_eq!(1, from_str_truncate::<TestFlags>("A").unwrap().bits());
assert_eq!(1, from_str_truncate::<TestFlags>(" A ").unwrap().bits());
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_truncate::<TestFlags>("A | B | C").unwrap().bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_truncate::<TestFlags>("A\n|\tB\r\n| C ")
.unwrap()
.bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_truncate::<TestFlags>("A|B|C").unwrap().bits()
);
assert_eq!(0, from_str_truncate::<TestFlags>("0x8").unwrap().bits());
assert_eq!(1, from_str_truncate::<TestFlags>("A | 0x8").unwrap().bits());
assert_eq!(
1 | 1 << 1,
from_str_truncate::<TestFlags>("0x1 | 0x8 | B")
.unwrap()
.bits()
);
assert_eq!(
1 | 1 << 1,
from_str_truncate::<TestUnicode>("一 | 二").unwrap().bits()
);
}
}
mod to_writer_truncate {
use super::*;
#[test]
fn cases() {
assert_eq!("", write(TestFlags::empty()));
assert_eq!("A", write(TestFlags::A));
assert_eq!("A | B | C", write(TestFlags::all()));
assert_eq!("", write(TestFlags::from_bits_retain(1 << 3)));
assert_eq!(
"A",
write(TestFlags::A | TestFlags::from_bits_retain(1 << 3))
);
assert_eq!("", write(TestZero::ZERO));
assert_eq!("ABC", write(TestFlagsInvert::all()));
assert_eq!("0x1", write(TestOverlapping::from_bits_retain(1)));
assert_eq!("A", write(TestOverlappingFull::C));
assert_eq!(
"A | D",
write(TestOverlappingFull::C | TestOverlappingFull::D)
);
}
fn write<F: Flags>(value: F) -> String
where
F::Bits: crate::parser::WriteHex,
{
let mut s = String::new();
to_writer_truncate(&value, &mut s).unwrap();
s
}
}
mod from_str_strict {
use super::*;
#[test]
fn valid() {
assert_eq!(0, from_str_strict::<TestFlags>("").unwrap().bits());
assert_eq!(1, from_str_strict::<TestFlags>("A").unwrap().bits());
assert_eq!(1, from_str_strict::<TestFlags>(" A ").unwrap().bits());
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_strict::<TestFlags>("A | B | C").unwrap().bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_strict::<TestFlags>("A\n|\tB\r\n| C ")
.unwrap()
.bits()
);
assert_eq!(
1 | 1 << 1 | 1 << 2,
from_str_strict::<TestFlags>("A|B|C").unwrap().bits()
);
assert_eq!(
1 | 1 << 1,
from_str_strict::<TestUnicode>("一 | 二").unwrap().bits()
);
}
#[test]
fn invalid() {
assert!(from_str_strict::<TestFlags>("a")
.unwrap_err()
.to_string()
.starts_with("unrecognized named flag"));
assert!(from_str_strict::<TestFlags>("A & B")
.unwrap_err()
.to_string()
.starts_with("unrecognized named flag"));
assert!(from_str_strict::<TestFlags>("0x1")
.unwrap_err()
.to_string()
.starts_with("invalid hex flag"));
assert!(from_str_strict::<TestFlags>("0xg")
.unwrap_err()
.to_string()
.starts_with("invalid hex flag"));
assert!(from_str_strict::<TestFlags>("0xffffffffffff")
.unwrap_err()
.to_string()
.starts_with("invalid hex flag"));
}
}
mod to_writer_strict {
use super::*;
#[test]
fn cases() {
assert_eq!("", write(TestFlags::empty()));
assert_eq!("A", write(TestFlags::A));
assert_eq!("A | B | C", write(TestFlags::all()));
assert_eq!("", write(TestFlags::from_bits_retain(1 << 3)));
assert_eq!(
"A",
write(TestFlags::A | TestFlags::from_bits_retain(1 << 3))
);
assert_eq!("", write(TestZero::ZERO));
assert_eq!("ABC", write(TestFlagsInvert::all()));
assert_eq!("", write(TestOverlapping::from_bits_retain(1)));
assert_eq!("A", write(TestOverlappingFull::C));
assert_eq!(
"A | D",
write(TestOverlappingFull::C | TestOverlappingFull::D)
);
}
fn write<F: Flags>(value: F) -> String
where
F::Bits: crate::parser::WriteHex,
{
let mut s = String::new();
to_writer_strict(&value, &mut s).unwrap();
s
}
}
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