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use assert_cmd::Command;
use std::ffi::OsStr;
use std::str;
use std::sync::Once;
static INIT: Once = Once::new();
/**
* This file contains tests that verify the exact output of the command.
* This output differs on Linux / Mac so the tests are harder to write and debug
* Windows is ignored here because the results vary by host making exact testing impractical
*
* Despite the above problems, these tests are good as they are the closest to 'the real thing'.
*/
// Warning: File sizes differ on both platform and on the format of the disk.
/// Copy to /tmp dir - we assume that the formatting of the /tmp partition
/// is consistent. If the tests fail your /tmp filesystem probably differs
fn copy_test_data(dir: &str) {
// First remove the existing directory - just in case it is there and has incorrect data
let last_slash = dir.rfind('/').unwrap();
let last_part_of_dir = dir.chars().skip(last_slash).collect::<String>();
let _ = Command::new("rm")
.arg("-rf")
.arg("/tmp/".to_owned() + &*last_part_of_dir)
.ok();
let _ = Command::new("cp")
.arg("-r")
.arg(dir)
.arg("/tmp/")
.ok()
.map_err(|err| eprintln!("Error copying directory for test setup\n{:?}", err));
}
fn initialize() {
INIT.call_once(|| {
copy_test_data("tests/test_dir");
copy_test_data("tests/test_dir2");
copy_test_data("tests/test_dir_unicode");
});
}
fn exact_output_test<T: AsRef<OsStr>>(valid_outputs: Vec<String>, command_args: Vec<T>) {
initialize();
let mut a = &mut Command::cargo_bin("dust").unwrap();
for p in command_args {
a = a.arg(p);
}
let output = str::from_utf8(&a.unwrap().stdout).unwrap().to_owned();
let will_fail = valid_outputs.iter().any(|i| output.contains(i));
if !will_fail {
eprintln!("output:\n{}\ndoes not contain any of:\n{:?}",output, valid_outputs.iter());
}
assert!(will_fail)
}
// "windows" result data can vary by host (size seems to be variable by one byte); fix code vs test and re-enable
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_main_basic() {
// -c is no color mode - This makes testing much simpler
exact_output_test(main_output(), vec!["-c", "-B", "/tmp/test_dir/"])
}
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_main_multi_arg() {
let command_args = vec![
"-c",
"-B",
"/tmp/test_dir/many/",
"/tmp/test_dir",
"/tmp/test_dir",
];
exact_output_test(main_output(), command_args);
}
fn main_output() -> Vec<String> {
// Some linux currently thought to be Manjaro, Arch
// Although probably depends on how drive is formatted
let mac_and_some_linux = r#"
0B ┌── a_file │░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░█ │ 0%
4.0K ├── hello_file│█████████████████████████████████████████████████ │ 100%
4.0K ┌─┴ many │█████████████████████████████████████████████████ │ 100%
4.0K ┌─┴ test_dir │█████████████████████████████████████████████████ │ 100%
"#
.trim()
.to_string();
let ubuntu = r#"
0B ┌── a_file │ ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░█ │ 0%
4.0K ├── hello_file│ ░░░░░░░░░░░░░░░░█████████████████ │ 33%
8.0K ┌─┴ many │ █████████████████████████████████ │ 67%
12K ┌─┴ test_dir │█████████████████████████████████████████████████ │ 100%
"#
.trim()
.to_string();
vec![mac_and_some_linux, ubuntu]
}
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_main_long_paths() {
let command_args = vec!["-c", "-p", "-B", "/tmp/test_dir/"];
exact_output_test(main_output_long_paths(), command_args);
}
fn main_output_long_paths() -> Vec<String> {
let mac_and_some_linux = r#"
0B ┌── /tmp/test_dir/many/a_file │░░░░░░░░░░░░░░░░░░░░░░░░░░░░░█ │ 0%
4.0K ├── /tmp/test_dir/many/hello_file│██████████████████████████████ │ 100%
4.0K ┌─┴ /tmp/test_dir/many │██████████████████████████████ │ 100%
4.0K ┌─┴ /tmp/test_dir │██████████████████████████████ │ 100%
"#
.trim()
.to_string();
let ubuntu = r#"
0B ┌── /tmp/test_dir/many/a_file │ ░░░░░░░░░░░░░░░░░░░░█ │ 0%
4.0K ├── /tmp/test_dir/many/hello_file│ ░░░░░░░░░░███████████ │ 33%
8.0K ┌─┴ /tmp/test_dir/many │ █████████████████████ │ 67%
12K ┌─┴ /tmp/test_dir │██████████████████████████████ │ 100%
"#
.trim()
.to_string();
vec![mac_and_some_linux, ubuntu]
}
// Check against directories and files whose names are substrings of each other
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_substring_of_names_and_long_names() {
let command_args = vec!["-c", "-B", "/tmp/test_dir2"];
exact_output_test(no_substring_of_names_output(), command_args);
}
fn no_substring_of_names_output() -> Vec<String> {
let ubuntu = "
0B ┌── long_dir_name_what_a_very_long_dir_name_what_happens_when_this_goes..
4.0K ├── dir_name_clash
4.0K │ ┌── hello
8.0K ├─┴ dir
4.0K │ ┌── hello
8.0K ├─┴ dir_substring
24K ┌─┴ test_dir2
"
.trim()
.into();
let mac_and_some_linux = "
0B ┌── long_dir_name_what_a_very_long_dir_name_what_happens_when_this_goes..
4.0K │ ┌── hello
4.0K ├─┴ dir
4.0K ├── dir_name_clash
4.0K │ ┌── hello
4.0K ├─┴ dir_substring
12K ┌─┴ test_dir2
"
.trim()
.into();
vec![mac_and_some_linux, ubuntu]
}
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_unicode_directories() {
let command_args = vec!["-c", "-B", "/tmp/test_dir_unicode"];
exact_output_test(unicode_dir(), command_args);
}
fn unicode_dir() -> Vec<String> {
// The way unicode & asian characters are rendered on the terminal should make this line up
let ubuntu = "
0B ┌── ラウトは難しいです！.japan│ █ │ 0%
0B ├── 👩.unicode │ █ │ 0%
4.0K ┌─┴ test_dir_unicode │███████████████████████████████████ │ 100%
"
.trim()
.into();
let mac_and_some_linux = "
0B ┌── ラウトは難しいです！.japan│ █ │ 0%
0B ├── 👩.unicode │ █ │ 0%
0B ┌─┴ test_dir_unicode │ █ │ 0%
"
.trim()
.into();
vec![mac_and_some_linux, ubuntu]
}
#[cfg_attr(target_os = "windows", ignore)]
#[test]
pub fn test_apparent_size() {
let command_args = vec!["-c", "-s", "-b", "/tmp/test_dir"];
exact_output_test(apparent_size_output(), command_args);
}
fn apparent_size_output() -> Vec<String> {
// The apparent directory sizes are too unpredictable and system dependent to try and match
let files = r#"
0B ┌── a_file
6B ├── hello_file
"#
.trim()
.to_string();
vec![files]
}
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