tests.rs - mozsearch

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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());