Fix fallout of removing import_shadowing in tests.

14 files changed, 80 insertions, 72 deletions

diff --git a/src/libcollections/bench.rs b/src/libcollections/bench.rs
index 3346e55158a..fbaebd0125d 100644
--- a/src/libcollections/bench.rs
+++ b/src/libcollections/bench.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use std::prelude::*;
+use prelude::*;
 use std::rand;
 use std::rand::Rng;
 use test::Bencher;
diff --git a/src/libcollections/binary_heap.rs b/src/libcollections/binary_heap.rs
index be99c4c0bc7..e1c06736b36 100644
--- a/src/libcollections/binary_heap.rs
+++ b/src/libcollections/binary_heap.rs
@@ -617,10 +617,9 @@ impl<T: Ord> Extend<T> for BinaryHeap<T> {
 
 #[cfg(test)]
 mod tests {
-    use std::prelude::*;
+    use prelude::*;
 
     use super::BinaryHeap;
-    use vec::Vec;
 
     #[test]
     fn test_iterator() {
diff --git a/src/libcollections/bit.rs b/src/libcollections/bit.rs
index 7f78d56607e..f59fb1c5d3d 100644
--- a/src/libcollections/bit.rs
+++ b/src/libcollections/bit.rs
@@ -1686,16 +1686,15 @@ impl<'a> Iterator<uint> for TwoBitPositions<'a> {
 
 #[cfg(test)]
 mod tests {
-    use std::prelude::*;
-    use std::iter::range_step;
+    use prelude::*;
+    use core::iter::range_step;
+    use core::u32;
     use std::rand;
     use std::rand::Rng;
-    use std::u32;
     use test::{Bencher, black_box};
 
     use super::{Bitv, BitvSet, from_fn, from_bytes};
     use bitv;
-    use vec::Vec;
 
     static BENCH_BITS : uint = 1 << 14;
 
@@ -2038,7 +2037,7 @@ mod tests {
     #[test]
     fn test_from_bytes() {
         let bitv = from_bytes(&[0b10110110, 0b00000000, 0b11111111]);
-        let str = format!("{}{}{}", "10110110", "00000000", "11111111");
+        let str = concat!("10110110", "00000000", "11111111");
         assert_eq!(bitv.to_string(), str);
     }
 
diff --git a/src/libcollections/btree/map.rs b/src/libcollections/btree/map.rs
index dc69c5993c1..01096c1fd4e 100644
--- a/src/libcollections/btree/map.rs
+++ b/src/libcollections/btree/map.rs
@@ -1335,7 +1335,7 @@ impl<K: Ord, V> BTreeMap<K, V> {
 
 #[cfg(test)]
 mod test {
-    use std::prelude::*;
+    use prelude::*;
 
     use super::{BTreeMap, Occupied, Vacant};
 
@@ -1537,7 +1537,7 @@ mod test {
 
 #[cfg(test)]
 mod bench {
-    use std::prelude::*;
+    use prelude::*;
     use std::rand::{weak_rng, Rng};
     use test::{Bencher, black_box};
 
diff --git a/src/libcollections/btree/set.rs b/src/libcollections/btree/set.rs
index 4ef2e681992..890d9be39f9 100644
--- a/src/libcollections/btree/set.rs
+++ b/src/libcollections/btree/set.rs
@@ -726,7 +726,7 @@ impl<'a, T: Ord> Iterator<&'a T> for UnionItems<'a, T> {
 
 #[cfg(test)]
 mod test {
-    use std::prelude::*;
+    use prelude::*;
 
     use super::BTreeSet;
     use std::hash;
diff --git a/src/libcollections/dlist.rs b/src/libcollections/dlist.rs
index e7454aef51e..4d7ce92b549 100644
--- a/src/libcollections/dlist.rs
+++ b/src/libcollections/dlist.rs
@@ -788,14 +788,14 @@ impl<S: Writer, A: Hash<S>> Hash<S> for DList<A> {
 
 #[cfg(test)]
 mod tests {
-    use std::prelude::*;
+    use prelude::*;
     use std::rand;
     use std::hash;
+    use std::task::spawn;
     use test::Bencher;
     use test;
 
     use super::{DList, Node, ListInsertion};
-    use vec::Vec;
 
     pub fn check_links<T>(list: &DList<T>) {
         let mut len = 0u;
diff --git a/src/libcollections/enum_set.rs b/src/libcollections/enum_set.rs
index caa2051c3f9..ed7516fec16 100644
--- a/src/libcollections/enum_set.rs
+++ b/src/libcollections/enum_set.rs
@@ -295,9 +295,9 @@ impl<E:CLike> Extend<E> for EnumSet<E> {
 
 #[cfg(test)]
 mod test {
-    use std::prelude::*;
     use self::Foo::*;
-    use std::mem;
+    use prelude::*;
+    use core::mem;
 
     use super::{EnumSet, CLike};
 
diff --git a/src/libcollections/lib.rs b/src/libcollections/lib.rs
index 051079a528e..75d179319f7 100644
--- a/src/libcollections/lib.rs
+++ b/src/libcollections/lib.rs
@@ -95,3 +95,41 @@ mod std {
     pub use core::kinds;    // deriving(Copy)
     pub use core::hash;     // deriving(Hash)
 }
+
+#[cfg(test)]
+mod prelude {
+    // from core.
+    pub use core::borrow::IntoCow;
+    pub use core::char::Char;
+    pub use core::clone::Clone;
+    pub use core::cmp::{PartialEq, Eq, Equiv, PartialOrd, Ord};
+    pub use core::cmp::Ordering::{Less, Equal, Greater};
+    pub use core::iter::range;
+    pub use core::iter::{FromIterator, Extend, IteratorExt};
+    pub use core::iter::{Iterator, DoubleEndedIterator, RandomAccessIterator};
+    pub use core::iter::{IteratorCloneExt, CloneIteratorExt, DoubleEndedIteratorExt};
+    pub use core::iter::{IteratorOrdExt, MutableDoubleEndedIterator, ExactSizeIterator};
+    pub use core::kinds::{Copy, Send, Sized, Sync};
+    pub use core::mem::drop;
+    pub use core::ops::{Drop, Fn, FnMut, FnOnce};
+    pub use core::option::Option;
+    pub use core::option::Option::{Some, None};
+    pub use core::ptr::RawPtr;
+    pub use core::result::Result;
+    pub use core::result::Result::{Ok, Err};
+
+    // in core and collections (may differ).
+    pub use slice::{PartialEqSliceExt, OrdSliceExt};
+    pub use slice::{AsSlice, SliceExt};
+    pub use str::{from_str, Str, StrPrelude};
+
+    // from other crates.
+    pub use alloc::boxed::Box;
+    pub use unicode::char::UnicodeChar;
+
+    // from collections.
+    pub use slice::{CloneSliceExt, VectorVector};
+    pub use str::{IntoMaybeOwned, UnicodeStrPrelude, StrAllocating, StrVector};
+    pub use string::{String, ToString};
+    pub use vec::Vec;
+}
diff --git a/src/libcollections/ring_buf.rs b/src/libcollections/ring_buf.rs
index cdb92d302e9..b0228593923 100644
--- a/src/libcollections/ring_buf.rs
+++ b/src/libcollections/ring_buf.rs
@@ -1260,18 +1260,17 @@ impl<T: fmt::Show> fmt::Show for RingBuf<T> {
 
 #[cfg(test)]
 mod tests {
-    use core::iter;
     use self::Taggy::*;
     use self::Taggypar::*;
-    use std::cmp;
+    use prelude::*;
+    use core::cmp;
+    use core::iter;
     use std::fmt::Show;
-    use std::prelude::*;
     use std::hash;
     use test::Bencher;
     use test;
 
     use super::RingBuf;
-    use vec::Vec;
 
     #[test]
     #[allow(deprecated)]
@@ -1791,7 +1790,7 @@ mod tests {
 
     #[test]
     fn test_from_iter() {
-        use std::iter;
+        use core::iter;
         let v = vec!(1i,2,3,4,5,6,7);
         let deq: RingBuf<int> = v.iter().map(|&x| x).collect();
         let u: Vec<int> = deq.iter().map(|&x| x).collect();
diff --git a/src/libcollections/slice.rs b/src/libcollections/slice.rs
index 3bf10192e59..16adf6fa224 100644
--- a/src/libcollections/slice.rs
+++ b/src/libcollections/slice.rs
@@ -1343,16 +1343,13 @@ pub mod raw {
 #[cfg(test)]
 mod tests {
     use std::boxed::Box;
-    use std::cell::Cell;
-    use std::default::Default;
-    use std::mem;
-    use std::prelude::*;
+    use prelude::*;
+    use core::cell::Cell;
+    use core::default::Default;
+    use core::mem;
     use std::rand::{Rng, task_rng};
     use std::rc::Rc;
-    use std::rt;
-    use slice::*;
-
-    use vec::Vec;
+    use super::ElementSwaps;
 
     fn square(n: uint) -> uint { n * n }
 
@@ -2764,14 +2761,12 @@ mod tests {
 
 #[cfg(test)]
 mod bench {
-    use std::prelude::*;
+    use prelude::*;
+    use core::mem;
+    use core::ptr;
     use std::rand::{weak_rng, Rng};
-    use std::mem;
-    use std::ptr;
     use test::{Bencher, black_box};
 
-    use vec::Vec;
-
     #[bench]
     fn iterator(b: &mut Bencher) {
         // peculiar numbers to stop LLVM from optimising the summation
diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs
index dc8313386b9..feec2a216c7 100644
--- a/src/libcollections/str.rs
+++ b/src/libcollections/str.rs
@@ -837,25 +837,12 @@ impl<'a> StrAllocating for &'a str {
 
 #[cfg(test)]
 mod tests {
-    use std::iter::AdditiveIterator;
-    use std::iter::range;
-    use std::default::Default;
-    use std::char::Char;
-    use std::clone::Clone;
-    use std::cmp::{Ord, PartialOrd, Equiv};
-    use std::cmp::Ordering::{Equal, Greater, Less};
-    use std::option::Option;
-    use std::option::Option::{Some, None};
-    use std::ptr::RawPtr;
-    use std::iter::{Iterator, IteratorExt, DoubleEndedIteratorExt};
-
-    use super::*;
-    use std::slice::{AsSlice, SliceExt};
-    use string::String;
-    use vec::Vec;
-    use slice::CloneSliceExt;
-
-    use unicode::char::UnicodeChar;
+    use prelude::*;
+    use core::default::Default;
+    use core::iter::AdditiveIterator;
+    use super::{eq_slice, from_utf8, is_utf8, is_utf16, raw};
+    use super::truncate_utf16_at_nul;
+    use super::{Owned, Slice};
 
     #[test]
     fn test_eq_slice() {
@@ -1829,7 +1816,7 @@ mod tests {
 
     #[test]
     fn test_lev_distance() {
-        use std::char::{ from_u32, MAX };
+        use core::char::{ from_u32, MAX };
         // Test bytelength agnosticity
         for c in range(0u32, MAX as u32)
                  .filter_map(|i| from_u32(i))
@@ -1939,7 +1926,7 @@ mod tests {
 
     #[test]
     fn test_graphemes() {
-        use std::iter::order;
+        use core::iter::order;
         // official Unicode test data
         // from http://www.unicode.org/Public/UCD/latest/ucd/auxiliary/GraphemeBreakTest.txt
         let test_same: [(_, &[_]), .. 325] = [
@@ -2370,7 +2357,7 @@ mod tests {
 
     #[test]
     fn test_str_default() {
-        use std::default::Default;
+        use core::default::Default;
         fn t<S: Default + Str>() {
             let s: S = Default::default();
             assert_eq!(s.as_slice(), "");
@@ -2470,12 +2457,10 @@ mod tests {
 
 #[cfg(test)]
 mod bench {
+    use prelude::*;
     use test::Bencher;
     use test::black_box;
     use super::*;
-    use std::iter::{IteratorExt, DoubleEndedIteratorExt};
-    use std::str::StrPrelude;
-    use std::slice::SliceExt;
 
     #[bench]
     fn char_iterator(b: &mut Bencher) {
diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs
index 38ebd686ddb..bcd1e3b3680 100644
--- a/src/libcollections/string.rs
+++ b/src/libcollections/string.rs
@@ -1040,14 +1040,11 @@ pub mod raw {
 
 #[cfg(test)]
 mod tests {
-    use std::prelude::*;
+    use prelude::*;
     use test::Bencher;
 
-    use slice::CloneSliceExt;
-    use str::{Str, StrPrelude};
     use str;
-    use super::{as_string, String, ToString};
-    use vec::Vec;
+    use super::as_string;
 
     #[test]
     fn test_as_string() {
diff --git a/src/libcollections/vec.rs b/src/libcollections/vec.rs
index a783d8e6339..e0745a86d71 100644
--- a/src/libcollections/vec.rs
+++ b/src/libcollections/vec.rs
@@ -1805,12 +1805,10 @@ impl<'a> fmt::FormatWriter for Vec<u8> {
 
 #[cfg(test)]
 mod tests {
-    extern crate test;
-
-    use std::prelude::*;
-    use std::mem::size_of;
+    use prelude::*;
+    use core::mem::size_of;
     use test::Bencher;
-    use super::{as_vec, unzip, raw, Vec};
+    use super::{as_vec, unzip, raw};
 
     struct DropCounter<'a> {
         count: &'a mut int
diff --git a/src/libcollections/vec_map.rs b/src/libcollections/vec_map.rs
index 75b7c917ced..1babde6066d 100644
--- a/src/libcollections/vec_map.rs
+++ b/src/libcollections/vec_map.rs
@@ -672,8 +672,7 @@ impl<V> DoubleEndedIterator<(uint, V)> for MoveItems<V> {
 
 #[cfg(test)]
 mod test_map {
-    use std::prelude::*;
-    use vec::Vec;
+    use prelude::*;
     use core::hash::hash;
 
     use super::VecMap;
@@ -1046,8 +1045,7 @@ mod test_map {
 
 #[cfg(test)]
 mod bench {
-    extern crate test;
-    use self::test::Bencher;
+    use test::Bencher;
     use super::VecMap;
     use bench::{insert_rand_n, insert_seq_n, find_rand_n, find_seq_n};