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#[cfg(test)]
pub mod integration_test_utils {
use std::ffi::OsString;
use std::io::BufReader;
use bytelines::ByteLines;
use console::strip_ansi_codes;
use structopt::{clap, StructOpt};
use crate::cli;
use crate::config;
use crate::delta::delta;
pub fn get_command_line_options() -> cli::Opt {
let mut opt = cli::Opt::from_iter(Vec::<OsString>::new());
opt.syntax_theme = None; // TODO: Why does opt.syntax_theme have the value Some("")?
opt.no_gitconfig = true;
opt
}
pub fn get_line_of_code_from_delta<'a>(
input: &str,
line_number: usize,
expected_text: &str,
options: cli::Opt,
) -> (String, config::Config<'a>) {
let (output, config) = run_delta(&input, options);
let line_of_code = output.lines().nth(line_number).unwrap();
assert!(strip_ansi_codes(line_of_code) == expected_text);
(line_of_code.to_string(), config)
}
pub fn run_delta<'a>(input: &str, options: cli::Opt) -> (String, config::Config<'a>) {
let mut writer: Vec<u8> = Vec::new();
let config =
cli::process_command_line_arguments(options, clap::ArgMatches::new(), &mut None);
delta(
ByteLines::new(BufReader::new(input.as_bytes())),
&mut writer,
&config,
)
.unwrap();
(String::from_utf8(writer).unwrap(), config)
}
}
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