1use strict;
2use warnings;  
3
4use Test::More;
5use lib qw(t/lib);
6use DBICTest;
7use Class::Inspector;
8
9BEGIN {
10  package TestPackage::A;
11  sub some_method {}
12}
13
14my $schema = DBICTest->init_schema();
15
16plan tests => 28;
17
18# Test ensure_class_found
19ok( $schema->ensure_class_found('DBIx::Class::Schema'),
20    'loaded package DBIx::Class::Schema was found' );
21ok( !Class::Inspector->loaded('DBICTest::FakeComponent'),
22    'DBICTest::FakeComponent not loaded yet' );
23ok( $schema->ensure_class_found('DBICTest::FakeComponent'),
24    'package DBICTest::FakeComponent was found' );
25ok( !Class::Inspector->loaded('DBICTest::FakeComponent'),
26    'DBICTest::FakeComponent not loaded by ensure_class_found()' );
27ok( $schema->ensure_class_found('TestPackage::A'),
28    'anonymous package TestPackage::A found' );
29ok( !$schema->ensure_class_found('FAKE::WONT::BE::FOUND'),
30        'fake package not found' );
31
32# Test load_optional_class
33my $retval = eval { $schema->load_optional_class('ANOTHER::FAKE::PACKAGE') };
34ok( !$@, 'load_optional_class on a nonexistent class did not throw' );
35ok( !$retval, 'nonexistent package not loaded' );
36$retval = eval { $schema->load_optional_class('DBICTest::OptionalComponent') };
37ok( !$@, 'load_optional_class on an existing class did not throw' );
38ok( $retval, 'DBICTest::OptionalComponent loaded' );
39eval { $schema->load_optional_class('DBICTest::ErrorComponent') };
40like( $@, qr/did not return a true value/,
41      'DBICTest::ErrorComponent threw ok' );
42
43# Simulate a PAR environment
44{
45  my @code;
46  local @INC = @INC;
47  unshift @INC, sub {
48    if ($_[1] eq 'VIRTUAL/PAR/PACKAGE.pm') {
49      return (sub { return 0 unless @code; $_ = shift @code; 1; } );
50    }
51    else {
52      return ();
53    }
54  };
55
56  $retval = eval { $schema->load_optional_class('FAKE::PAR::PACKAGE') };
57  ok( !$@, 'load_optional_class on a nonexistent PAR class did not throw' );
58  ok( !$retval, 'nonexistent PAR package not loaded' );
59
60
61  # simulate a class which does load but does not return true
62  @code = (
63    q/package VIRTUAL::PAR::PACKAGE;/,
64    q/0;/,
65  );
66
67  $retval = eval { $schema->load_optional_class('VIRTUAL::PAR::PACKAGE') };
68  ok( $@, 'load_optional_class of a no-true-returning PAR module did throw' );
69  ok( !$retval, 'no-true-returning PAR package not loaded' );
70
71  # simulate a normal class (no one adjusted %INC so it will be tried again
72  @code = (
73    q/package VIRTUAL::PAR::PACKAGE;/,
74    q/1;/,
75  );
76
77  $retval = eval { $schema->load_optional_class('VIRTUAL::PAR::PACKAGE') };
78  ok( !$@, 'load_optional_class of a PAR module did not throw' );
79  ok( $retval, 'PAR package "loaded"' );
80
81  # see if we can still load stuff with the coderef present
82  $retval = eval { $schema->load_optional_class('DBIx::Class::ResultClass::HashRefInflator') };
83  ok( !$@, 'load_optional_class did not throw' ) || diag $@;
84  ok( $retval, 'DBIx::Class::ResultClass::HashRefInflator loaded' );
85}
86
87# Test ensure_class_loaded
88ok( Class::Inspector->loaded('TestPackage::A'), 'anonymous package exists' );
89eval { $schema->ensure_class_loaded('TestPackage::A'); };
90ok( !$@, 'ensure_class_loaded detected an anon. class' );
91eval { $schema->ensure_class_loaded('FakePackage::B'); };
92like( $@, qr/Can't locate/,
93     'ensure_class_loaded threw exception for nonexistent class' );
94ok( !Class::Inspector->loaded('DBICTest::FakeComponent'),
95   'DBICTest::FakeComponent not loaded yet' );
96eval { $schema->ensure_class_loaded('DBICTest::FakeComponent'); };
97ok( !$@, 'ensure_class_loaded detected an existing but non-loaded class' );
98ok( Class::Inspector->loaded('DBICTest::FakeComponent'),
99   'DBICTest::FakeComponent now loaded' );
100
101{
102  # Squash warnings about syntax errors in SytaxErrorComponent.pm
103  local $SIG{__WARN__} = sub {
104    my $warning = shift;
105    warn $warning unless (
106      $warning =~ /String found where operator expected/ or
107      $warning =~ /Missing operator before/
108    );
109  };
110
111  eval { $schema->ensure_class_loaded('DBICTest::SyntaxErrorComponent1') };
112  like( $@, qr/syntax error/,
113        'ensure_class_loaded(DBICTest::SyntaxErrorComponent1) threw ok' );
114  eval { $schema->load_optional_class('DBICTest::SyntaxErrorComponent2') };
115  like( $@, qr/syntax error/,
116        'load_optional_class(DBICTest::SyntaxErrorComponent2) threw ok' );
117}
118
119
120eval {
121  package Fake::ResultSet;
122
123  use base 'DBIx::Class::ResultSet';
124
125  __PACKAGE__->load_components('+DBICTest::SyntaxErrorComponent3');
126};
127
128# Make sure the errors in components of resultset classes are reported right.
129like($@, qr!\Qsyntax error at t/lib/DBICTest/SyntaxErrorComponent3.pm!, "Errors from RS components reported right");
130
1311;
132