std/src/path/path_test.nv - main - nv-lang/nova

// SPDX-License-Identifier: MIT OR Apache-2.0
// std/path/path_test.nv — публичный контракт Path (join/parent/basename/extension/normalize).

module path.path_test

import std.path.path.{Path}

test "join" {
    // Positional variadic args.
    assert(Path.join("a", "b", "c") == "a/b/c")
    assert(Path.join("/usr", "bin") == "/usr/bin")
    assert(Path.join("a", "/b") == "a/b")          // strip leading /
    assert(Path.join("", "b") == "b")
    // Spread from existing array.
    ro parts []str = ["x", "y", "z"]
    assert(Path.join(...parts) == "x/y/z")
}

test "parent" {
    assert(Path.parent("/usr/bin/ls") == Some("/usr/bin"))
    assert(Path.parent("/usr") == Some("/"))
    assert(Path.parent("/") == None)
    assert(Path.parent("file.txt") == None)
}

test "basename" {
    assert(Path.basename("/usr/bin/ls") == "ls")
    assert(Path.basename("file.txt") == "file.txt")
    assert(Path.basename("/dir/") == "dir")
}

test "extension" {
    assert(Path.extension("file.txt") == Some("txt"))
    assert(Path.extension("archive.tar.gz") == Some("gz"))
    assert(Path.extension("README") == None)
    assert(Path.extension(".bashrc") == None)        // dotfile
}

test "is_absolute" {
    assert(Path.is_absolute("/usr/bin"))
    assert(!Path.is_absolute("relative/path"))
    assert(!Path.is_absolute(""))
}

test "normalize" {
    assert(Path.normalize("/a/b/../c") == "/a/c")
    assert(Path.normalize("/a/./b") == "/a/b")
    assert(Path.normalize("a/b/..") == "a")
    assert(Path.normalize("//a//b//") == "/a/b")
    assert(Path.normalize(".") == ".")
    assert(Path.normalize("..") == "..")
}