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|
#[cfg(test)]
pub mod ansi_test_utils {
use ansi_term;
use crate::ansi;
use crate::config::Config;
use crate::delta::State;
use crate::paint;
use crate::style::Style;
pub fn assert_line_has_style(
output: &str,
line_number: usize,
expected_prefix: &str,
expected_style: &str,
config: &Config,
) {
assert!(_line_has_style(
output,
line_number,
expected_prefix,
expected_style,
config,
false,
));
}
pub fn assert_line_does_not_have_style(
output: &str,
line_number: usize,
expected_prefix: &str,
expected_style: &str,
config: &Config,
) {
assert!(!_line_has_style(
output,
line_number,
expected_prefix,
expected_style,
config,
false,
));
}
pub fn assert_line_has_4_bit_color_style(
output: &str,
line_number: usize,
expected_prefix: &str,
expected_style: &str,
config: &Config,
) {
assert!(_line_has_style(
output,
line_number,
expected_prefix,
expected_style,
config,
true,
));
}
pub fn assert_line_has_no_color(output: &str, line_number: usize, expected_prefix: &str) {
let line = output.lines().nth(line_number).unwrap();
let stripped_line = ansi::strip_ansi_codes(line);
assert!(stripped_line.starts_with(expected_prefix));
assert_eq!(line, stripped_line);
}
/// Assert that the specified line number of output (a) has, after stripping ANSI codes, a
/// substring starting at `substring_begin` equal to `expected_substring` and (b) in its raw
/// form contains a version of that substring syntax-highlighted according to
/// `language_extension`.
pub fn assert_line_has_syntax_highlighted_substring(
output: &str,
line_number: usize,
substring_begin: usize,
expected_substring: &str,
language_extension: &str,
state: State,
config: &Config,
) {
let line = output.lines().nth(line_number).unwrap();
let substring_end = substring_begin + expected_substring.len();
let substring = &ansi::strip_ansi_codes(&line)[substring_begin..substring_end];
assert_eq!(substring, expected_substring);
let painted_substring = paint_line(substring, language_extension, state, config);
// remove trailing newline appended by paint::paint_lines.
assert!(line.contains(painted_substring.trim_end()));
}
pub fn assert_has_color_other_than_plus_color(string: &str, config: &Config) {
let (string_without_any_color, string_with_plus_color_only) =
get_color_variants(string, config);
assert_ne!(string, string_without_any_color);
assert_ne!(string, string_with_plus_color_only);
}
pub fn assert_has_plus_color_only(string: &str, config: &Config) {
let (string_without_any_color, string_with_plus_color_only) =
get_color_variants(string, config);
assert_ne!(string, string_without_any_color);
assert_eq!(string, string_with_plus_color_only);
}
pub fn get_color_variants(string: &str, config: &Config) -> (String, String) {
let string_without_any_color = ansi::strip_ansi_codes(string).to_string();
let string_with_plus_color_only = config
.plus_style
.ansi_term_style
.paint(&string_without_any_color);
(
string_without_any_color.to_string(),
string_with_plus_color_only.to_string(),
)
}
pub fn paint_line(
line: &str,
language_extension: &str,
state: State,
config: &Config,
) -> String {
let mut output_buffer = String::new();
let mut unused_writer = Vec::<u8>::new();
let mut painter = paint::Painter::new(&mut unused_writer, config);
let syntax_highlighted_style = Style {
is_syntax_highlighted: true,
..Style::new()
};
painter.set_syntax(Some(language_extension));
painter.set_highlighter();
let lines = vec![(format!(" {}", line), state.clone())];
let syntax_style_sections = paint::Painter::get_syntax_style_sections_for_lines(
&lines,
&state,
&mut painter.highlighter,
config,
);
let diff_style_sections = vec![vec![(syntax_highlighted_style, lines[0].0.as_str())]];
let prefix = match (&state, config.keep_plus_minus_markers) {
(State::HunkMinus(_), true) => "-",
(State::HunkZero, true) => " ",
(State::HunkPlus(_), true) => "+",
_ => "",
};
paint::Painter::paint_lines(
syntax_style_sections,
diff_style_sections,
[state].iter(),
&mut output_buffer,
config,
&mut None,
Some(config.null_style.paint(prefix)),
None,
None,
);
output_buffer
}
fn _line_has_style(
output: &str,
line_number: usize,
expected_prefix: &str,
expected_style: &str,
config: &Config,
_4_bit_color: bool,
) -> bool {
let line = output.lines().nth(line_number).unwrap();
assert!(ansi::strip_ansi_codes(line).starts_with(expected_prefix));
let mut style = Style::from_str(expected_style, None, None, config.true_color, false);
if _4_bit_color {
style.ansi_term_style.foreground = style
.ansi_term_style
.foreground
.map(ansi_term_fixed_foreground_to_4_bit_color);
}
style.is_applied_to(line)
}
fn ansi_term_fixed_foreground_to_4_bit_color(color: ansi_term::Color) -> ansi_term::Color {
match color {
ansi_term::Color::Fixed(30) => ansi_term::Color::Black,
ansi_term::Color::Fixed(31) => ansi_term::Color::Red,
ansi_term::Color::Fixed(32) => ansi_term::Color::Green,
ansi_term::Color::Fixed(33) => ansi_term::Color::Yellow,
ansi_term::Color::Fixed(34) => ansi_term::Color::Blue,
ansi_term::Color::Fixed(35) => ansi_term::Color::Purple,
ansi_term::Color::Fixed(36) => ansi_term::Color::Cyan,
ansi_term::Color::Fixed(37) => ansi_term::Color::White,
color => panic!(
"Invalid 4-bit color: {:?}. \
(Add bright color entries to this map if needed for tests.",
color
),
}
}
}
|
