tests: extern crates in separated test modules

tests/common/util.rs

@@ -1,4 +1,5 @@
 #![allow(dead_code)]
+extern crate tempdir;
 
 use std::env;
 use std::fs::{self, File, OpenOptions};
@@ -14,7 +15,7 @@ use std::ffi::OsStr;
 use std::rc::Rc;
 use std::thread::sleep;
 use std::time::Duration;
-use tempdir::TempDir;
+use self::tempdir::TempDir;
 
 #[cfg(windows)]
 static PROGNAME: &'static str = "uutils.exe";

tests/test_factor.rs

@@ -8,9 +8,14 @@
 //
 
 use common::util::*;
-use rand::{weak_rng, Rng};
-use rand::distributions::{IndependentSample, Range};
-use sieve::Sieve;
+
+#[path="../src/factor/sieve.rs"]
+mod sieve;
+use self::sieve::Sieve;
+
+extern crate rand;
+use self::rand::{weak_rng, Rng};
+use self::rand::distributions::{IndependentSample, Range};
 
 const NUM_PRIMES: usize = 10000;
 const LOG_PRIMES: f64 = 14.0;   // ceil(log2(NUM_PRIMES))

tests/test_mktemp.rs

@@ -1,5 +1,6 @@
 use common::util::*;
-use tempdir::TempDir;
+extern crate tempdir;
+use self::tempdir::TempDir;
 
 static UTIL_NAME: &'static str = "mktemp";
 

tests/test_split.rs

@@ -4,8 +4,8 @@ extern crate regex;
 use std::fs::{File, read_dir};
 use std::io::{Read, Write};
 use std::path::Path;
-use rand::{Rng, thread_rng};
-use regex::Regex;
+use self::rand::{Rng, thread_rng};
+use self::regex::Regex;
 use common::util::*;
 
 static UTIL_NAME: &'static str = "split";

tests/tests.rs

@@ -1,19 +1,6 @@
-extern crate filetime;
-extern crate libc;
-extern crate rand;
-extern crate regex;
-extern crate tempdir;
-extern crate time;
-
-#[cfg(windows)] extern crate kernel32;
-#[cfg(windows)] extern crate winapi;
-
 #[macro_use]
 mod common;
 
-#[path="../src/factor/sieve.rs"]
-mod sieve;
-
 // For conditional compilation
 macro_rules! unix_only {
     ($($fea:expr, $m:ident);+) => {