<commit_before>use common::util::*;
use std::fs::{metadata, OpenOptions, set_permissions};
use std::os::unix::fs::{OpenOptionsExt, PermissionsExt};
use std::sync::Mutex;

extern crate libc;
use self::libc::umask;


static TEST_FILE: &'static str = "file";
static REFERENCE_FILE: &'static str = "reference";
static REFERENCE_PERMS: u32 = 0o247;
lazy_static! {
    static ref UMASK_MUTEX: Mutex<()> = Mutex::new(());
}

struct TestCase {
    args: Vec<&'static str>,
    before: u32,
    after: u32
}

fn mkfile(file: &str, mode: u32) {
    OpenOptions::new().mode(mode).create(true).write(true).open(file).unwrap();
    let mut perms = metadata(file).unwrap().permissions();
    perms.set_mode(mode);
    set_permissions(file, perms).unwrap();
}

fn run_single_test(test: &TestCase, at: AtPath, mut ucmd: UCommand) {
        mkfile(&at.plus_as_string(TEST_FILE), test.before);
        let perms = at.metadata(TEST_FILE).permissions().mode();
        if perms != test.before {
            panic!(format!("{}: expected: {:o} got: {:o}", "setting permissions failed", test.after, perms));
        }

        for arg in &test.args {
            ucmd.arg(arg);
        }<commit_msg>chmod: make error message clearer<commit_after>use common::util::*;
use std::fs::{metadata, OpenOptions, set_permissions};
use std::os::unix::fs::{OpenOptionsExt, PermissionsExt};
use std::sync::Mutex;

extern crate libc;
use self::libc::umask;


static TEST_FILE: &'static str = "file";
static REFERENCE_FILE: &'static str = "reference";
static REFERENCE_PERMS: u32 = 0o247;
lazy_static! {
    static ref UMASK_MUTEX: Mutex<()> = Mutex::new(());
}

struct TestCase {
    args: Vec<&'static str>,
    before: u32,
    after: u32
}

fn mkfile(file: &str, mode: u32) {
    OpenOptions::new().mode(mode).create(true).write(true).open(file).unwrap();
    let mut perms = metadata(file).unwrap().permissions();
    perms.set_mode(mode);
    set_permissions(file, perms).unwrap();
}

fn run_single_test(test: &TestCase, at: AtPath, mut ucmd: UCommand) {
        mkfile(&at.plus_as_string(TEST_FILE), test.before);
        let perms = at.metadata(TEST_FILE).permissions().mode();
        if perms != test.before {
            panic!(format!("{}: expected: {:o} got: {:o}", "setting permissions on test files before actual test run failed", test.after, perms));
        }

        for arg in &test.args {
            ucmd.arg(arg);
        }
{'fraction_non_alphanumeric': 0.16811955168119552, 'fraction_numerical': 0.009962640099626401, 'mean_word_length': 4.0, 'pattern_counts': {'":': 0, '<': 7, '<?xml version=': 0, '>': 7, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5283287', 'n_tokens_mistral': 843, 'n_tokens_neox': 826, 'n_words': 189}