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1 | #!./perl |
2 | |
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3 | # $RCSfile: sort.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:24 $ |
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4 | |
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5 | print "1..21\n"; |
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6 | |
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7 | sub backwards { $a lt $b ? 1 : $a gt $b ? -1 : 0 } |
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8 | |
9 | @harry = ('dog','cat','x','Cain','Abel'); |
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10 | @george = ('gone','chased','yz','punished','Axed'); |
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11 | |
12 | $x = join('', sort @harry); |
13 | print ($x eq 'AbelCaincatdogx' ? "ok 1\n" : "not ok 1\n"); |
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14 | print "# x = '$x'\n"; |
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15 | |
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16 | $x = join('', sort( backwards @harry)); |
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17 | print ($x eq 'xdogcatCainAbel' ? "ok 2\n" : "not ok 2\n"); |
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18 | print "# x = '$x'\n"; |
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19 | |
20 | $x = join('', sort @george, 'to', @harry); |
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21 | print ($x eq 'AbelAxedCaincatchaseddoggonepunishedtoxyz'?"ok 3\n":"not ok 3\n"); |
22 | print "# x = '$x'\n"; |
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23 | |
24 | @a = (); |
25 | @b = reverse @a; |
26 | print ("@b" eq "" ? "ok 4\n" : "not ok 4 (@b)\n"); |
27 | |
28 | @a = (1); |
29 | @b = reverse @a; |
30 | print ("@b" eq "1" ? "ok 5\n" : "not ok 5 (@b)\n"); |
31 | |
32 | @a = (1,2); |
33 | @b = reverse @a; |
34 | print ("@b" eq "2 1" ? "ok 6\n" : "not ok 6 (@b)\n"); |
35 | |
36 | @a = (1,2,3); |
37 | @b = reverse @a; |
38 | print ("@b" eq "3 2 1" ? "ok 7\n" : "not ok 7 (@b)\n"); |
39 | |
40 | @a = (1,2,3,4); |
41 | @b = reverse @a; |
42 | print ("@b" eq "4 3 2 1" ? "ok 8\n" : "not ok 8 (@b)\n"); |
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43 | |
44 | @a = (10,2,3,4); |
45 | @b = sort {$a <=> $b;} @a; |
46 | print ("@b" eq "2 3 4 10" ? "ok 9\n" : "not ok 9 (@b)\n"); |
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47 | |
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48 | $sub = 'backwards'; |
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49 | $x = join('', sort $sub @harry); |
50 | print ($x eq 'xdogcatCainAbel' ? "ok 10\n" : "not ok 10\n"); |
51 | |
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52 | # literals, combinations |
53 | |
54 | @b = sort (4,1,3,2); |
55 | print ("@b" eq '1 2 3 4' ? "ok 11\n" : "not ok 11\n"); |
56 | print "# x = '@b'\n"; |
57 | |
58 | @b = sort grep { $_ } (4,1,3,2); |
59 | print ("@b" eq '1 2 3 4' ? "ok 12\n" : "not ok 12\n"); |
60 | print "# x = '@b'\n"; |
61 | |
62 | @b = sort map { $_ } (4,1,3,2); |
63 | print ("@b" eq '1 2 3 4' ? "ok 13\n" : "not ok 13\n"); |
64 | print "# x = '@b'\n"; |
65 | |
66 | @b = sort reverse (4,1,3,2); |
67 | print ("@b" eq '1 2 3 4' ? "ok 14\n" : "not ok 14\n"); |
68 | print "# x = '@b'\n"; |
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69 | |
70 | $^W = 0; |
71 | # redefining sort sub inside the sort sub should fail |
72 | sub twoface { *twoface = sub { $a <=> $b }; &twoface } |
73 | eval { @b = sort twoface 4,1,3,2 }; |
74 | print ($@ =~ /redefine active sort/ ? "ok 15\n" : "not ok 15\n"); |
75 | |
76 | # redefining sort subs outside the sort should not fail |
77 | eval { *twoface = sub { &backwards } }; |
78 | print $@ ? "not ok 16\n" : "ok 16\n"; |
79 | |
80 | eval { @b = sort twoface 4,1,3,2 }; |
81 | print ("@b" eq '4 3 2 1' ? "ok 17\n" : "not ok 17 |@b|\n"); |
82 | |
83 | *twoface = sub { *twoface = *backwards; $a <=> $b }; |
84 | eval { @b = sort twoface 4,1 }; |
85 | print ($@ =~ /redefine active sort/ ? "ok 18\n" : "not ok 18\n"); |
86 | |
87 | *twoface = sub { |
88 | eval 'sub twoface { $a <=> $b }'; |
89 | die($@ =~ /redefine active sort/ ? "ok 19\n" : "not ok 19\n"); |
90 | $a <=> $b; |
91 | }; |
92 | eval { @b = sort twoface 4,1 }; |
93 | print $@ ? "$@" : "not ok 19\n"; |
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94 | |
95 | eval <<'CODE'; |
96 | my @result = sort main'backwards 'one', 'two'; |
97 | CODE |
98 | print $@ ? "not ok 20\n# $@" : "ok 20\n"; |
99 | |
100 | eval <<'CODE'; |
101 | # "sort 'one', 'two'" should not try to parse "'one" as a sort sub |
102 | my @result = sort 'one', 'two'; |
103 | CODE |
104 | print $@ ? "not ok 21\n# $@" : "ok 21\n"; |