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1 | #!/usr/bin/perl |
2 | |
3 | use strict; |
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4 | #use warnings; |
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5 | |
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6 | use Test::More tests => 24; |
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7 | |
8 | BEGIN { use_ok 'Try::Tiny' }; |
9 | |
10 | sub _eval { |
11 | local $@; |
12 | local $Test::Builder::Level = $Test::Builder::Level + 2; |
13 | return ( scalar(eval { $_[0]->(); 1 }), $@ ); |
14 | } |
15 | |
16 | |
17 | sub lives_ok (&$) { |
18 | my ( $code, $desc ) = @_; |
19 | local $Test::Builder::Level = $Test::Builder::Level + 1; |
20 | |
21 | my ( $ok, $error ) = _eval($code); |
22 | |
23 | ok($ok, $desc ); |
24 | |
25 | diag "error: $@" unless $ok; |
26 | } |
27 | |
28 | sub throws_ok (&$$) { |
29 | my ( $code, $regex, $desc ) = @_; |
30 | local $Test::Builder::Level = $Test::Builder::Level + 1; |
31 | |
32 | my ( $ok, $error ) = _eval($code); |
33 | |
34 | if ( $ok ) { |
35 | fail($desc); |
36 | } else { |
37 | like($error || '', $regex, $desc ); |
38 | } |
39 | } |
40 | |
41 | |
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42 | my $prev; |
43 | |
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44 | lives_ok { |
45 | try { |
46 | die "foo"; |
47 | }; |
48 | } "basic try"; |
49 | |
50 | throws_ok { |
51 | try { |
52 | die "foo"; |
53 | } catch { die $_ }; |
54 | } qr/foo/, "rethrow"; |
55 | |
56 | |
57 | { |
58 | local $@ = "magic"; |
59 | is( try { 42 }, 42, "try block evaluated" ); |
60 | is( $@, "magic", '$@ untouched' ); |
61 | } |
62 | |
63 | { |
64 | local $@ = "magic"; |
65 | is( try { die "foo" }, undef, "try block died" ); |
66 | is( $@, "magic", '$@ untouched' ); |
67 | } |
68 | |
69 | { |
70 | local $@ = "magic"; |
71 | like( (try { die "foo" } catch { $_ }), qr/foo/, "catch block evaluated" ); |
72 | is( $@, "magic", '$@ untouched' ); |
73 | } |
74 | |
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75 | is( scalar(try { "foo", "bar", "gorch" }), "gorch", "scalar context" ); |
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76 | is_deeply( [ try {qw(foo bar gorch)} ], [qw(foo bar gorch)], "list context" ); |
77 | |
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78 | { |
79 | my ($sub) = catch { my $a = $_; }; |
80 | is(ref($sub), 'Try::Tiny::Catch', 'Checking catch subroutine scalar reference is correctly blessed'); |
81 | my ($sub) = finally { my $a = $_; }; |
82 | is(ref($sub), 'Try::Tiny::Finally', 'Checking finally subroutine scalar reference is correctly blessed'); |
83 | } |
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84 | |
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85 | lives_ok { |
86 | try { |
87 | die "foo"; |
88 | } catch { |
89 | my $err = shift; |
90 | |
91 | try { |
92 | like $err, qr/foo/; |
93 | } catch { |
94 | fail("shouldn't happen"); |
95 | }; |
96 | |
97 | pass "got here"; |
98 | } |
99 | } "try in try catch block"; |
100 | |
101 | throws_ok { |
102 | try { |
103 | die "foo"; |
104 | } catch { |
105 | my $err = shift; |
106 | |
107 | try { } catch { }; |
108 | |
109 | die "rethrowing $err"; |
110 | } |
111 | } qr/rethrowing foo/, "rethrow with try in catch block"; |
112 | |
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113 | |
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114 | sub Evil::DESTROY { |
115 | eval { "oh noes" }; |
116 | } |
117 | |
118 | sub Evil::new { bless { }, $_[0] } |
119 | |
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120 | { |
121 | local $@ = "magic"; |
122 | local $_ = "other magic"; |
123 | |
124 | try { |
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125 | my $object = Evil->new; |
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126 | die "foo"; |
127 | } catch { |
128 | pass("catch invoked"); |
129 | local $TODO = "i don't think we can ever make this work sanely, maybe with SIG{__DIE__}"; |
130 | like($_, qr/foo/); |
131 | }; |
132 | |
133 | is( $@, "magic", '$@ untouched' ); |
134 | is( $_, "other magic", '$_ untouched' ); |
135 | } |
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136 | |
137 | { |
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138 | my ( $caught, $prev ); |
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139 | |
140 | { |
141 | local $@; |
142 | |
143 | eval { die "bar\n" }; |
144 | |
145 | is( $@, "bar\n", 'previous value of $@' ); |
146 | |
147 | try { |
148 | die { |
149 | prev => $@, |
150 | } |
151 | } catch { |
152 | $caught = $_; |
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153 | $prev = $@; |
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154 | } |
155 | } |
156 | |
157 | is_deeply( $caught, { prev => "bar\n" }, 'previous value of $@ available for capture' ); |
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158 | is( $prev, "bar\n", 'previous value of $@ also available in catch block' ); |
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159 | } |