use insta::assert_debug_snapshot as assert_snapshot;
use oyster_parser::Lexer;

#[test]
fn eof() {
    let source = "";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn whitespace() {
    let source = " \t  \t\t";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn newlines() {
    let source = "\n\n\n";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn semicolon() {
    let source = ";";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn pipe() {
    let source = "|";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn plain_word() {
    let source = "whoami";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn word_with_hash() {
    let source = "nixpkgs#hello";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn escaped_hash() {
    let source = r"\#";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn comment() {
    let source = "# hey";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn double_quotes_in_command() {
    let source = r#"""#;

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn double_quotes_in_string() {
    let source = r#"""#;

    let actual = Lexer::new(source).next_string_token();

    assert_snapshot!(actual);
}

#[test]
fn escaped_quotes_in_string() {
    let source = r#"\""#;

    let actual = Lexer::new(source).next_string_token();

    assert_snapshot!(actual);
}

#[test]
fn opening_parenthesis_command_mode() {
    let source = r"(";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn closing_parenthesis_command_mode() {
    let source = r")";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}

#[test]
fn opening_parenthesis_string_mode() {
    let source = r"(";

    let actual = Lexer::new(source).next_string_token();

    assert_snapshot!(actual);
}

#[test]
fn closing_parenthesis_string_mode() {
    let source = r")";

    let actual = Lexer::new(source).next_string_token();

    assert_snapshot!(actual);
}

#[test]
fn escape_newline() {
    let source = "\\\n";

    let actual = Lexer::new(source).next_command_token();

    assert_snapshot!(actual);
}