ignorecase_test.rs

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// This file is part of ICU4X. For terms of use, please see the file

// called LICENSE at the top level of the ICU4X source tree

// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

use zerotrie::ZeroAsciiIgnoreCaseTrie;

mod testdata {

    include!("data/data.rs");

use testdata::strings_to_litemap;

#[test]

fn test_ignore_case_coverage() {

    let litemap = strings_to_litemap(&["", "aBc", "aBcD", "aBce", "aBcF", "aBcghi"]);

    // Test both construction paths

    ZeroAsciiIgnoreCaseTrie::try_from(&litemap).unwrap();

    let trie = litemap

        .iter()

        .map(|(k, v)| (*k, *v))

        .collect::<ZeroAsciiIgnoreCaseTrie<Vec<u8>>>();

    // Test lookup

    for (k, v) in litemap.iter() {

        assert_eq!(trie.get(k), Some(*v), "normal: {k:?}");

        let k_upper = k

            .iter()

            .map(|c| c.to_ascii_uppercase())

            .collect::<Vec<u8>>();

        assert_eq!(trie.get(k_upper), Some(*v), "upper: {k:?}");

        let k_lower = k

            .iter()

            .map(|c| c.to_ascii_lowercase())

            .collect::<Vec<u8>>();

        assert_eq!(trie.get(k_lower), Some(*v), "lower: {k:?}");

    // Test mixed-case strings

    let problematic_strs = &["A", "ab", "abc", "aBcd", "aBcgHi"];

    for problematic_str in problematic_strs {

        let mut litemap = litemap.clone();

        litemap.insert(problematic_str.as_bytes(), 100);

        ZeroAsciiIgnoreCaseTrie::try_from(&litemap).expect_err(problematic_str);