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tests.rs
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tests.rs
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#![cfg(all( // require `--all-features` to be passed
feature = "default",
feature = "alloc",
feature = "formatting",
feature = "large-dates",
feature = "local-offset",
feature = "macros",
feature = "parsing",
feature = "quickcheck",
feature = "serde-human-readable",
feature = "serde-well-known",
feature = "std",
feature = "rand",
feature = "serde",
))]
#![allow(
let_underscore_drop,
clippy::clone_on_copy,
clippy::cognitive_complexity,
clippy::std_instead_of_core
)]
//! Tests for internal details.
//!
//! This module should only be used when it is not possible to test the implementation in a
//! reasonable manner externally.
use std::format;
use std::num::NonZeroU8;
use crate::ext::DigitCount;
use crate::parsing::combinator::rfc::iso8601;
use crate::parsing::shim::Integer;
use crate::{duration, parsing};
#[test]
fn digit_count() {
assert_eq!(1_u8.num_digits(), 1);
assert_eq!(9_u8.num_digits(), 1);
assert_eq!(10_u8.num_digits(), 2);
assert_eq!(99_u8.num_digits(), 2);
assert_eq!(100_u8.num_digits(), 3);
assert_eq!(1_u16.num_digits(), 1);
assert_eq!(9_u16.num_digits(), 1);
assert_eq!(10_u16.num_digits(), 2);
assert_eq!(99_u16.num_digits(), 2);
assert_eq!(100_u16.num_digits(), 3);
assert_eq!(999_u16.num_digits(), 3);
assert_eq!(1_000_u16.num_digits(), 4);
assert_eq!(9_999_u16.num_digits(), 4);
assert_eq!(10_000_u16.num_digits(), 5);
assert_eq!(1_u32.num_digits(), 1);
assert_eq!(9_u32.num_digits(), 1);
assert_eq!(10_u32.num_digits(), 2);
assert_eq!(99_u32.num_digits(), 2);
assert_eq!(100_u32.num_digits(), 3);
assert_eq!(999_u32.num_digits(), 3);
assert_eq!(1_000_u32.num_digits(), 4);
assert_eq!(9_999_u32.num_digits(), 4);
assert_eq!(10_000_u32.num_digits(), 5);
assert_eq!(99_999_u32.num_digits(), 5);
assert_eq!(100_000_u32.num_digits(), 6);
assert_eq!(999_999_u32.num_digits(), 6);
assert_eq!(1_000_000_u32.num_digits(), 7);
assert_eq!(9_999_999_u32.num_digits(), 7);
assert_eq!(10_000_000_u32.num_digits(), 8);
assert_eq!(99_999_999_u32.num_digits(), 8);
assert_eq!(100_000_000_u32.num_digits(), 9);
assert_eq!(999_999_999_u32.num_digits(), 9);
assert_eq!(1_000_000_000_u32.num_digits(), 10);
}
#[test]
fn debug() {
let _ = format!("{:?}", duration::Padding::Optimize);
let _ = format!("{:?}", parsing::ParsedItem(b"", 0));
let _ = format!("{:?}", parsing::component::Period::Am);
let _ = format!("{:?}", iso8601::ExtendedKind::Basic);
}
#[test]
fn clone() {
assert_eq!(
parsing::component::Period::Am.clone(),
parsing::component::Period::Am
);
// does not impl Debug
assert!(crate::time::Padding::Optimize.clone() == crate::time::Padding::Optimize);
// does not impl PartialEq
assert!(matches!(
iso8601::ExtendedKind::Basic.clone(),
iso8601::ExtendedKind::Basic
));
}
#[test]
fn parsing_internals() {
assert!(
parsing::ParsedItem(b"", ())
.flat_map(|_| None::<()>)
.is_none()
);
assert!(<NonZeroU8 as Integer>::parse_bytes(b"256").is_none());
}