sourceannot 0.3.1

A library to render snippets of source code with annotations
Documentation 
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use sourceannot::{ControlCharStyle, InvalidSeqStyle};

use super::test_render_simple;

#[test]
fn test_simple() {
    // 1
    let source = "123\n456";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 0..1, "123", "^  ", "ttt");
    test_render_simple(&snippet, 1..2, "123", " ^ ", "ttt");
    test_render_simple(&snippet, 2..3, "123", "  ^", "ttt");
    test_render_simple(&snippet, 3..4, "123", "   ^", "ttt");
    test_render_simple(&snippet, 4..5, "456", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "456", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "456", "  ^", "ttt");
    test_render_simple(&snippet, 7..7, "456", "   ^", "ttt");

    // 2
    let source = "123\n456\n";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 0..1, "123", "^  ", "ttt");
    test_render_simple(&snippet, 1..2, "123", " ^ ", "ttt");
    test_render_simple(&snippet, 2..3, "123", "  ^", "ttt");
    test_render_simple(&snippet, 3..4, "123", "   ^", "ttt");
    test_render_simple(&snippet, 4..5, "456", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "456", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "456", "  ^", "ttt");
    test_render_simple(&snippet, 7..8, "456", "   ^", "ttt");
    test_render_simple(&snippet, 8..8, "", "^", "");
}

#[test]
fn test_non_ascii_char() {
    let source = "123\n4\u{FF}6";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{FF}6", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "4\u{FF}6", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "4\u{FF}6", "  ^", "ttt");
}

#[test]
fn test_multi_word_char() {
    let source = "123\n4\u{1FBB1}6";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{1FBB1}6", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "4\u{1FBB1}6", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "4\u{1FBB1}6", " ^ ", "ttt");
    test_render_simple(&snippet, 5..7, "4\u{1FBB1}6", " ^ ", "ttt");
    test_render_simple(&snippet, 7..8, "4\u{1FBB1}6", "  ^", "ttt");
}

#[test]
fn test_tab() {
    let source = "123\n4\t6";

    // width 3
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        3,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4   6", "^    ", "ttttt");
    test_render_simple(&snippet, 5..6, "4   6", " ^^^ ", "ttttt");
    test_render_simple(&snippet, 6..7, "4   6", "    ^", "ttttt");

    // width 4
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4    6", "^     ", "tttttt");
    test_render_simple(&snippet, 5..6, "4    6", " ^^^^ ", "tttttt");
    test_render_simple(&snippet, 6..7, "4    6", "     ^", "tttttt");

    // width 0
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        0,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "46", "^ ", "tt");
    test_render_simple(&snippet, 5..6, "46", " ^", "tt");
    test_render_simple(&snippet, 6..7, "46", " ^", "tt");
}

#[test]
fn test_line_breaks() {
    let source = "123\r\n4\r6\r\n";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Codepoint,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 0..1, "123", "^  ", "ttt");
    test_render_simple(&snippet, 1..2, "123", " ^ ", "ttt");
    test_render_simple(&snippet, 2..3, "123", "  ^", "ttt");
    test_render_simple(&snippet, 3..4, "123", "   ^", "ttt");
    test_render_simple(&snippet, 4..5, "123", "   ^", "ttt");
    test_render_simple(&snippet, 3..5, "123", "   ^", "ttt");
    test_render_simple(&snippet, 5..6, "4<U+000D>6", "^       ", "tTTTTTTTTt");
    test_render_simple(&snippet, 6..7, "4<U+000D>6", " ^^^^^^^^ ", "tTTTTTTTTt");
    test_render_simple(&snippet, 7..8, "4<U+000D>6", "         ^", "tTTTTTTTTt");
    test_render_simple(&snippet, 8..9, "4<U+000D>6", "          ^", "tTTTTTTTTt");
    test_render_simple(&snippet, 9..10, "4<U+000D>6", "          ^", "tTTTTTTTTt");
    test_render_simple(&snippet, 8..10, "4<U+000D>6", "          ^", "tTTTTTTTTt");
    test_render_simple(&snippet, 10..10, "", "^", "");
}

#[test]
fn test_control_char_replacement() {
    let source = "123\n4\u{0}6";

    // alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{2400}6", "^  ", "tTt");
    test_render_simple(&snippet, 5..6, "4\u{2400}6", " ^ ", "tTt");
    test_render_simple(&snippet, 6..7, "4\u{2400}6", "  ^", "tTt");

    // non-alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        false,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{2400}6", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "4\u{2400}6", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "4\u{2400}6", "  ^", "ttt");
}

#[test]
fn test_control_char_codepoint() {
    let source = "123\n4\u{0}6\n7\u{2066}9";

    // alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Codepoint,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4<U+0000>6", "^         ", "tTTTTTTTTt");
    test_render_simple(&snippet, 5..6, "4<U+0000>6", " ^^^^^^^^ ", "tTTTTTTTTt");
    test_render_simple(&snippet, 6..7, "4<U+0000>6", "         ^", "tTTTTTTTTt");
    test_render_simple(&snippet, 8..9, "7<U+2066>9", "^         ", "tTTTTTTTTt");
    test_render_simple(&snippet, 9..10, "7<U+2066>9", " ^^^^^^^^ ", "tTTTTTTTTt");
    test_render_simple(&snippet, 10..11, "7<U+2066>9", "         ^", "tTTTTTTTTt");

    // non-alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Codepoint,
        false,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4<U+0000>6", "^         ", "tttttttttt");
    test_render_simple(&snippet, 5..6, "4<U+0000>6", " ^^^^^^^^ ", "tttttttttt");
    test_render_simple(&snippet, 6..7, "4<U+0000>6", "         ^", "tttttttttt");
    test_render_simple(&snippet, 8..9, "7<U+2066>9", "^         ", "tttttttttt");
    test_render_simple(&snippet, 9..10, "7<U+2066>9", " ^^^^^^^^ ", "tttttttttt");
    test_render_simple(&snippet, 10..11, "7<U+2066>9", "         ^", "tttttttttt");
}

#[test]
fn test_invalid_replacement() {
    // "123\n4\uD8456"
    let source = [
        u16::from(b'1'),
        u16::from(b'2'),
        u16::from(b'3'),
        u16::from(b'\n'),
        u16::from(b'4'),
        0xD845,
        u16::from(b'6'),
    ];

    // alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source,
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{FFFD}6", "^  ", "tTt");
    test_render_simple(&snippet, 5..6, "4\u{FFFD}6", " ^ ", "tTt");
    test_render_simple(&snippet, 6..7, "4\u{FFFD}6", "  ^", "tTt");

    // non-alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source,
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        false,
    );

    test_render_simple(&snippet, 4..5, "4\u{FFFD}6", "^  ", "ttt");
    test_render_simple(&snippet, 5..6, "4\u{FFFD}6", " ^ ", "ttt");
    test_render_simple(&snippet, 6..7, "4\u{FFFD}6", "  ^", "ttt");
}

#[test]
fn test_invalid_char_hex() {
    // "123\n4\uD8456"
    let source = [
        u16::from(b'1'),
        u16::from(b'2'),
        u16::from(b'3'),
        u16::from(b'\n'),
        u16::from(b'4'),
        0xD845,
        u16::from(b'6'),
    ];

    // alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source,
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Hexadecimal,
        true,
    );

    test_render_simple(&snippet, 4..5, "4<D845>6", "^       ", "tTTTTTTt");
    test_render_simple(&snippet, 5..6, "4<D845>6", " ^^^^^^ ", "tTTTTTTt");
    test_render_simple(&snippet, 6..7, "4<D845>6", "       ^", "tTTTTTTt");

    // non-alt
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source,
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Hexadecimal,
        false,
    );

    test_render_simple(&snippet, 4..5, "4<D845>6", "^       ", "tttttttt");
    test_render_simple(&snippet, 5..6, "4<D845>6", " ^^^^^^ ", "tttttttt");
    test_render_simple(&snippet, 6..7, "4<D845>6", "       ^", "tttttttt");
}

#[test]
fn test_wide_char() {
    let source = "123\n4\u{FF12}6";
    let snippet = sourceannot::Snippet::with_utf16_words(
        0,
        source.encode_utf16(),
        4,
        ControlCharStyle::Replacement,
        true,
        InvalidSeqStyle::Replacement,
        true,
    );

    test_render_simple(&snippet, 4..5, "4\u{FF12}6", "^   ", "ttt");
    test_render_simple(&snippet, 5..6, "4\u{FF12}6", " ^^ ", "ttt");
    test_render_simple(&snippet, 6..7, "4\u{FF12}6", "   ^", "ttt");
}