//! Entries: split at `§` lines, rendered back, and measured in characters (M5a spec, section 3).
//! Do not edit.

use memoryd::entries::{parse, render, size};

fn owned(entries: &[&str]) -> Vec<String> {
    entries.iter().map(|e| e.to_string()).collect()
}

#[test]
fn parse_splits_at_separator_lines_and_trims() {
    assert_eq!(parse(""), Vec::<String>::new());
    assert_eq!(parse("\n\n"), Vec::<String>::new());
    assert_eq!(parse("one"), owned(&["one"]));
    assert_eq!(
        parse("one\n§\ntwo\nlines\n  §  \n\n three \n§\n§\n"),
        owned(&["one", "two\nlines", "three"])
    );
    assert_eq!(
        parse("a § b\n§\nc"),
        owned(&["a § b", "c"]),
        "§ inside a line is text"
    );
}

#[test]
fn render_is_what_parse_reads() {
    let entries = owned(&["Owner prefers UTC.", "Works on\nboxmaker."]);
    let text = render(&entries);
    assert_eq!(text, "Owner prefers UTC.\n§\nWorks on\nboxmaker.\n");
    assert_eq!(parse(&text), entries);
    assert_eq!(render(&[]), "");
}

#[test]
fn size_counts_characters_with_separators() {
    assert_eq!(size(&[]), 0);
    assert_eq!(size(&owned(&["abc"])), 3);
    assert_eq!(
        size(&owned(&["abc", "de"])),
        3 + 3 + 2,
        "a separator line is \\n§\\n"
    );
    assert_eq!(size(&owned(&["ééé"])), 3, "characters, not bytes");
}