treer 0.1.4

Another 'tree' command provides better support for recursive searching and highlights match results.
Documentation 
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use std::path::Path;

use treer::cmd::{root::Opts, traversal::print_tree_with_writer};

#[test]
fn test_print_default() {
    let opts: Opts = Default::default();
    let path = Path::new("tests/sample-directory");

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   ├── sub-dir-lv2
│   │   ├── sub-dir-lv3
│   │   │   └── file5.abc
│   │   └── file4
│   └── file3.toml
├── file1.md
└── file2.txt

3 directories, 5 files
";
    assert_eq!(result, expected);
}

#[test]
fn test_print_hidden() {
    let path = Path::new("tests/sample-directory");
    let mut opts: Opts = Default::default();
    opts.show_hidden = true;

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── .hidden
├── sub-dir-lv1
│   ├── sub-dir-lv2
│   │   ├── sub-dir-lv3
│   │   │   └── file5.abc
│   │   ├── .hidden2.txt
│   │   └── file4
│   └── file3.toml
├── .hidden.lock
├── file1.md
└── file2.txt

4 directories, 7 files
";
    assert_eq!(result, expected);
}

#[test]
fn test_match_pattern() {
    let path = Path::new("tests/sample-directory");
    let mut opts: Opts = Default::default();
    opts.patterns = vec![glob::Pattern::new("*1*").unwrap()];

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   ├── sub-dir-lv2
│   │   ├── sub-dir-lv3
│   │   │   └── file5.abc
│   │   └── file4
│   └── file3.toml
└── file1.md

3 directories, 4 files
";
    assert_eq!(result, expected);

    opts.patterns.push(glob::Pattern::new("*lv*").unwrap());
    opts.highlight = true;
    buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── \u{1b}[1;31msub-dir-lv1\u{1b}[0m
│   \u{1b}[31m├── \u{1b}[0m\u{1b}[1;31msub-dir-lv2\u{1b}[0m
│   \u{1b}[31m│   \u{1b}[0m\u{1b}[31m├── \u{1b}[0m\u{1b}[1;31msub-dir-lv3\u{1b}[0m
│   \u{1b}[31m│   \u{1b}[0m\u{1b}[31m│   \u{1b}[0m\u{1b}[31m└── \u{1b}[0mfile5.abc
│   \u{1b}[31m│   \u{1b}[0m\u{1b}[31m└── \u{1b}[0mfile4
│   \u{1b}[31m└── \u{1b}[0mfile3.toml
└── \u{1b}[1;31mfile1.md\u{1b}[0m

3 directories, 4 files
";
    assert_eq!(result, expected);
}

#[test]
fn test_exclude_patterns() {
    let path = Path::new("tests/sample-directory");
    let mut opts: Opts = Default::default();
    opts.exclude_patterns = vec![glob::Pattern::new("*2*").unwrap()];

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   └── file3.toml
└── file1.md

1 directory, 2 files
";
    assert_eq!(result, expected);

    opts.exclude_patterns = vec![
        glob::Pattern::new("*2.txt").unwrap(),
        glob::Pattern::new("*3*").unwrap(),
    ];
    buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   └── sub-dir-lv2
│       └── file4
└── file1.md

2 directories, 2 files
";
    assert_eq!(result, expected);
}

#[test]
fn test_max_level() {
    let path = Path::new("tests/sample-directory");
    let mut opts: Opts = Default::default();
    opts.level = Some(3);

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   ├── sub-dir-lv2
│   │   ├── sub-dir-lv3
│   │   └── file4
│   └── file3.toml
├── file1.md
└── file2.txt

3 directories, 4 files
";
    assert_eq!(result, expected);

    opts.level = Some(2);
    buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
├── sub-dir-lv1
│   ├── sub-dir-lv2
│   └── file3.toml
├── file1.md
└── file2.txt

2 directories, 3 files
";
    assert_eq!(result, expected);
}

#[test]
fn test_combination() {
    let path = Path::new("tests/sample-directory");
    let mut opts: Opts = Default::default();
    opts.show_hidden = true;
    opts.ascii = true;
    opts.level = Some(3);
    opts.exclude_patterns = vec![
        glob::Pattern::new("*2.txt").unwrap(),
        glob::Pattern::new("*3*").unwrap(),
    ];

    let mut buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
|---.hidden
|---sub-dir-lv1
|   +---sub-dir-lv2
|       +---file4
|---.hidden.lock
+---file1.md

3 directories, 3 files
";
    assert_eq!(result, expected);

    opts.patterns = vec![glob::Pattern::new("*lv*").unwrap()];
    opts.highlight = true;
    opts.icons = true;
    buffer = Vec::new();
    let _ = print_tree_with_writer(path, &opts, &mut buffer);

    let result = String::from_utf8(buffer).expect("Not valid UTF-8");
    let expected = "sample-directory
+---\u{1b}[1;31m\u{e5fe} sub-dir-lv1\u{1b}[0m
    \u{1b}[31m+---\u{1b}[0m\u{1b}[1;31m\u{e5fe} sub-dir-lv2\u{1b}[0m
        \u{1b}[31m+---\u{1b}[0m\u{f0214} file4

2 directories, 1 file
";
    assert_eq!(result, expected);
}