libtest: rename BenchHarness to Bencher

Closes #12640

src/doc/guide-testing.md

@@ -170,7 +170,7 @@ runner.
 
 The type signature of a benchmark function differs from a unit test:
 it takes a mutable reference to type
-`test::BenchHarness`. Inside the benchmark function, any
+`test::Bencher`. Inside the benchmark function, any
 time-variable or "setup" code should execute first, followed by a call
 to `iter` on the benchmark harness, passing a closure that contains
 the portion of the benchmark you wish to actually measure the
@@ -189,16 +189,16 @@ For example:
 extern crate test;
 
 use std::slice;
-use test::BenchHarness;
+use test::Bencher;
 
 #[bench]
-fn bench_sum_1024_ints(b: &mut BenchHarness) {
+fn bench_sum_1024_ints(b: &mut Bencher) {
     let v = slice::from_fn(1024, |n| n);
     b.iter(|| {v.iter().fold(0, |old, new| old + *new);} );
 }
 
 #[bench]
-fn initialise_a_vector(b: &mut BenchHarness) {
+fn initialise_a_vector(b: &mut Bencher) {
     b.iter(|| {slice::from_elem(1024, 0u64);} );
     b.bytes = 1024 * 8;
 }
@@ -249,11 +249,11 @@ it entirely.
 ~~~
 # #[allow(unused_imports)];
 extern crate test;
-use test::BenchHarness;
+use test::Bencher;
 
 #[bench]
-fn bench_xor_1000_ints(bh: &mut BenchHarness) {
-    bh.iter(|| {
+fn bench_xor_1000_ints(b: &mut Bencher) {
+    b.iter(|| {
             range(0, 1000).fold(0, |old, new| old ^ new);
         });
 }

src/libarena/lib.rs

@@ -481,9 +481,7 @@ impl<T> Drop for TypedArena<T> {
 #[cfg(test)]
 mod tests {
     extern crate test;
-
-
-    use self::test::BenchHarness;
+    use self::test::Bencher;
     use super::{Arena, TypedArena};
 
     struct Point {
@@ -505,9 +503,9 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_copy(bh: &mut BenchHarness) {
+    pub fn bench_copy(b: &mut Bencher) {
         let arena = TypedArena::new();
-        bh.iter(|| {
+        b.iter(|| {
             arena.alloc(Point {
                 x: 1,
                 y: 2,
@@ -517,8 +515,8 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_copy_nonarena(bh: &mut BenchHarness) {
-        bh.iter(|| {
+    pub fn bench_copy_nonarena(b: &mut Bencher) {
+        b.iter(|| {
             ~Point {
                 x: 1,
                 y: 2,
@@ -528,9 +526,9 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_copy_old_arena(bh: &mut BenchHarness) {
+    pub fn bench_copy_old_arena(b: &mut Bencher) {
         let arena = Arena::new();
-        bh.iter(|| {
+        b.iter(|| {
             arena.alloc(|| {
                 Point {
                     x: 1,
@@ -558,9 +556,9 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_noncopy(bh: &mut BenchHarness) {
+    pub fn bench_noncopy(b: &mut Bencher) {
         let arena = TypedArena::new();
-        bh.iter(|| {
+        b.iter(|| {
             arena.alloc(Noncopy {
                 string: ~"hello world",
                 array: vec!( 1, 2, 3, 4, 5 ),
@@ -569,8 +567,8 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_noncopy_nonarena(bh: &mut BenchHarness) {
-        bh.iter(|| {
+    pub fn bench_noncopy_nonarena(b: &mut Bencher) {
+        b.iter(|| {
             ~Noncopy {
                 string: ~"hello world",
                 array: vec!( 1, 2, 3, 4, 5 ),
@@ -579,9 +577,9 @@ mod tests {
     }
 
     #[bench]
-    pub fn bench_noncopy_old_arena(bh: &mut BenchHarness) {
+    pub fn bench_noncopy_old_arena(b: &mut Bencher) {
         let arena = Arena::new();
-        bh.iter(|| {
+        b.iter(|| {
             arena.alloc(|| Noncopy {
                 string: ~"hello world",
                 array: vec!( 1, 2, 3, 4, 5 ),

src/libcollections/bitv.rs

@@ -940,7 +940,7 @@ impl<'a> Iterator<uint> for BitPositions<'a> {
 #[cfg(test)]
 mod tests {
     extern crate test;
-    use self::test::BenchHarness;
+    use self::test::Bencher;
 
     use bitv::{Bitv, SmallBitv, BigBitv, BitvSet, from_bools, from_fn,
                from_bytes};
@@ -1557,7 +1557,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_uint_small(b: &mut BenchHarness) {
+    fn bench_uint_small(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = 0 as uint;
         b.iter(|| {
@@ -1567,7 +1567,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_small_bitv_small(b: &mut BenchHarness) {
+    fn bench_small_bitv_small(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = SmallBitv::new(uint::BITS);
         b.iter(|| {
@@ -1577,7 +1577,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_big_bitv_small(b: &mut BenchHarness) {
+    fn bench_big_bitv_small(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = BigBitv::new(vec!(0));
         b.iter(|| {
@@ -1587,7 +1587,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_big_bitv_big(b: &mut BenchHarness) {
+    fn bench_big_bitv_big(b: &mut Bencher) {
         let mut r = rng();
         let mut storage = vec!();
         storage.grow(BENCH_BITS / uint::BITS, &0u);
@@ -1599,7 +1599,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_big(b: &mut BenchHarness) {
+    fn bench_bitv_big(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = Bitv::new(BENCH_BITS, false);
         b.iter(|| {
@@ -1609,7 +1609,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_small(b: &mut BenchHarness) {
+    fn bench_bitv_small(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = Bitv::new(uint::BITS, false);
         b.iter(|| {
@@ -1619,7 +1619,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_set_small(b: &mut BenchHarness) {
+    fn bench_bitv_set_small(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = BitvSet::new();
         b.iter(|| {
@@ -1629,7 +1629,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_set_big(b: &mut BenchHarness) {
+    fn bench_bitv_set_big(b: &mut Bencher) {
         let mut r = rng();
         let mut bitv = BitvSet::new();
         b.iter(|| {
@@ -1639,7 +1639,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_big_union(b: &mut BenchHarness) {
+    fn bench_bitv_big_union(b: &mut Bencher) {
         let mut b1 = Bitv::new(BENCH_BITS, false);
         let b2 = Bitv::new(BENCH_BITS, false);
         b.iter(|| {
@@ -1648,7 +1648,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_btv_small_iter(b: &mut BenchHarness) {
+    fn bench_btv_small_iter(b: &mut Bencher) {
         let bitv = Bitv::new(uint::BITS, false);
         b.iter(|| {
             let mut _sum = 0;
@@ -1659,7 +1659,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitv_big_iter(b: &mut BenchHarness) {
+    fn bench_bitv_big_iter(b: &mut Bencher) {
         let bitv = Bitv::new(BENCH_BITS, false);
         b.iter(|| {
             let mut _sum = 0;
@@ -1670,7 +1670,7 @@ mod tests {
     }
 
     #[bench]
-    fn bench_bitvset_iter(b: &mut BenchHarness) {
+    fn bench_bitvset_iter(b: &mut Bencher) {
         let bitv = BitvSet::from_bitv(from_fn(BENCH_BITS,
                                               |idx| {idx % 3 == 0}));
         b.iter(|| {

src/libcollections/deque.rs

@@ -42,14 +42,14 @@ pub trait Deque<T> : Mutable {
 #[cfg(test)]
 pub mod bench {
     extern crate test;
-    use self::test::BenchHarness;
+    use self::test::Bencher;
     use std::container::MutableMap;
     use rand;
     use rand::Rng;
 
     pub fn insert_rand_n<M:MutableMap<uint,uint>>(n: uint,
                                                   map: &mut M,
-                                                  bh: &mut BenchHarness) {
+                                                  b: &mut Bencher) {
         // setup
         let mut rng = rand::weak_rng();
 
@@ -59,7 +59,7 @@ pub mod bench {
         }
 
         // measure
-        bh.iter(|| {
+        b.iter(|| {
             let k = rng.gen::<uint>() % n;
             map.insert(k, 1);
             map.remove(&k);
@@ -68,7 +68,7 @@ pub mod bench {
 
     pub fn insert_seq_n<M:MutableMap<uint,uint>>(n: uint,
                                                  map: &mut M,
-                                                 bh: &mut BenchHarness) {
+                                                 b: &mut Bencher) {
         // setup
         map.clear();
         for i in range(0u, n) {
@@ -77,7 +77,7 @@ pub mod bench {
 
         // measure
         let mut i = 1;
-        bh.iter(|| {
+        b.iter(|| {
             map.insert(i, 1);
             map.remove(&i);
             i = (i + 2) % n;
@@ -86,7 +86,7 @@ pub mod bench {
 
     pub fn find_rand_n<M:MutableMap<uint,uint>>(n: uint,
                                                 map: &mut M,
-                                                bh: &mut BenchHarness) {
+                                                b: &mut Bencher) {
         // setup
         let mut rng = rand::weak_rng();
         let mut keys = Vec::from_fn(n, |_| rng.gen::<uint>() % n);
@@ -99,23 +99,23 @@ pub mod bench {
 
         // measure
         let mut i = 0;
-        bh.iter(|| {
+        b.iter(|| {
             map.find(keys.get(i));
             i = (i + 1) % n;
         })
     }
 
     pub fn find_seq_n<M:MutableMap<uint,uint>>(n: uint,
                                                map: &mut M,
-                                               bh: &mut BenchHarness) {
+                                               b: &mut Bencher) {
         // setup
         for i in range(0u, n) {
             map.insert(i, 1);
         }
 
         // measure
         let mut i = 0;
-        bh.iter(|| {
+        b.iter(|| {
             let x = map.find(&i);
             i = (i + 1) % n;
             x