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1 | #!./perl |
2 | |
3 | # Checks if the parser behaves correctly in edge cases |
4 | # (including weird syntax errors) |
5 | |
6 | BEGIN { |
7 | chdir 't' if -d 't'; |
8 | @INC = '../lib'; |
9 | } |
10 | |
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11 | require "./test.pl"; |
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12 | plan( tests => 21 ); |
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13 | |
14 | eval '%@x=0;'; |
15 | like( $@, qr/^Can't modify hash dereference in repeat \(x\)/, '%@x=0' ); |
16 | |
17 | # Bug 20010422.005 |
18 | eval q{{s//${}/; //}}; |
19 | like( $@, qr/syntax error/, 'syntax error, used to dump core' ); |
20 | |
21 | # Bug 20010528.007 |
22 | eval q/"\x{"/; |
23 | like( $@, qr/^Missing right brace on \\x/, |
24 | 'syntax error in string, used to dump core' ); |
25 | |
26 | eval "a.b.c.d.e.f;sub"; |
27 | like( $@, qr/^Illegal declaration of anonymous subroutine/, |
28 | 'found by Markov chain stress testing' ); |
29 | |
30 | # Bug 20010831.001 |
31 | eval '($a, b) = (1, 2);'; |
32 | like( $@, qr/^Can't modify constant item in list assignment/, |
33 | 'bareword in list assignment' ); |
34 | |
35 | eval 'tie FOO, "Foo";'; |
36 | like( $@, qr/^Can't modify constant item in tie /, |
37 | 'tying a bareword causes a segfault in 5.6.1' ); |
38 | |
39 | eval 'undef foo'; |
40 | like( $@, qr/^Can't modify constant item in undef operator /, |
41 | 'undefing constant causes a segfault in 5.6.1 [ID 20010906.019]' ); |
42 | |
43 | eval 'read($bla, FILE, 1);'; |
44 | like( $@, qr/^Can't modify constant item in read /, |
45 | 'read($var, FILE, 1) segfaults on 5.6.1 [ID 20011025.054]' ); |
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46 | |
47 | # This used to dump core (bug #17920) |
48 | eval q{ sub { sub { f1(f2();); my($a,$b,$c) } } }; |
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49 | like( $@, qr/error/, 'lexical block discarded by yacc' ); |
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50 | |
51 | # bug #18573, used to corrupt memory |
52 | eval q{ "\c" }; |
53 | like( $@, qr/^Missing control char name in \\c/, q("\c" string) ); |
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54 | |
55 | # two tests for memory corruption problems in the said variables |
56 | # (used to dump core or produce strange results) |
57 | |
58 | is( "\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Q\Qa", "a", "PL_lex_casestack" ); |
59 | |
60 | eval { |
61 | {{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{ |
62 | {{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{ |
63 | {{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{ |
64 | }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} |
65 | }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} |
66 | }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} |
67 | }; |
68 | is( $@, '', 'PL_lex_brackstack' ); |
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69 | |
70 | { |
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71 | # tests for bug #20716 |
72 | undef $a; |
73 | undef @b; |
74 | my $a="A"; |
75 | is("${a}{", "A{", "interpolation, qq//"); |
76 | is("${a}[", "A[", "interpolation, qq//"); |
77 | my @b=("B"); |
78 | is("@{b}{", "B{", "interpolation, qq//"); |
79 | is(qr/${a}{/, '(?-xism:A{)', "interpolation, qr//"); |
80 | my $c = "A{"; |
81 | $c =~ /${a}{/; |
82 | is($&, 'A{', "interpolation, m//"); |
83 | $c =~ s/${a}{/foo/; |
84 | is($c, 'foo', "interpolation, s/...//"); |
85 | $c =~ s/foo/${a}{/; |
86 | is($c, 'A{', "interpolation, s//.../"); |
87 | is(<<"${a}{", "A{ A[ B{\n", "interpolation, here doc"); |
88 | ${a}{ ${a}[ @{b}{ |
89 | ${a}{ |
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90 | } |
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91 | |
92 | # Bug #21575 |
93 | # ensure that the second print statement works, by playing a bit |
94 | # with the test output. |
95 | my %data = ( foo => "\n" ); |
96 | print "#"; |
97 | print( |
98 | $data{foo}); |
99 | pass(); |