1 ! Copyright 2007, 2008 Ryan Murphy, Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays kernel math namespaces tools.test
4 heaps heaps.private math.parser random assocs sequences sorting
8 [ <min-heap> heap-pop ] must-fail
9 [ <max-heap> heap-pop ] must-fail
11 [ t ] [ <min-heap> heap-empty? ] unit-test
12 [ f ] [ <min-heap> 1 t pick heap-push heap-empty? ] unit-test
13 [ t ] [ <max-heap> heap-empty? ] unit-test
14 [ f ] [ <max-heap> 1 t pick heap-push heap-empty? ] unit-test
17 { 1 2 3 4 5 6 } [ 0 left 0 right 1 left 1 right 2 left 2 right ] unit-test
18 { t } [ t 5 f <entry> t 3 f <entry> T{ min-heap } heap-compare ] unit-test
19 { f } [ t 5 f <entry> t 3 f <entry> T{ max-heap } heap-compare ] unit-test
21 [ t 2 ] [ <min-heap> t 300 pick heap-push t 200 pick heap-push t 400 pick heap-push t 3 pick heap-push t 2 pick heap-push heap-pop ] unit-test
23 [ t 1 ] [ <min-heap> t 300 pick heap-push t 200 pick heap-push t 400 pick heap-push t 3 pick heap-push t 2 pick heap-push t 1 pick heap-push heap-pop ] unit-test
25 [ t 400 ] [ <max-heap> t 300 pick heap-push t 200 pick heap-push t 400 pick heap-push t 3 pick heap-push t 2 pick heap-push t 1 pick heap-push heap-pop ] unit-test
27 [ 0 ] [ <max-heap> heap-size ] unit-test
28 [ 1 ] [ <max-heap> t 1 pick heap-push heap-size ] unit-test
30 : heap-sort ( alist -- keys )
31 <min-heap> [ heap-push-all ] keep heap-pop-all ;
33 : random-alist ( n -- alist )
35 drop 32 random-bits dup number>string
38 : test-heap-sort ( n -- ? )
39 random-alist dup >alist sort-keys swap heap-sort = ;
42 [ t ] swap [ 2^ test-heap-sort ] curry unit-test
45 : test-entry-indices ( n -- ? )
47 <min-heap> [ heap-push-all ] keep
48 data>> dup length swap [ index>> ] map sequence= ;
51 [ t ] swap [ 2^ test-entry-indices ] curry unit-test
54 : sort-entries ( entries -- entries' )
55 [ [ key>> ] compare ] sort ;
57 : delete-test ( n -- ? )
60 <min-heap> [ heap-push-all ] keep
62 ] keep 3 /i [ 2dup [ delete-random ] dip heap-delete ] times
65 [ natural-sort ] bi@ ;
68 [ t ] swap [ 2^ delete-test sequence= ] curry unit-test