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1 | #!/usr/bin/perl |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Test::More tests => 62; |
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7 | use Test::Exception; |
8 | |
9 | BEGIN { |
10 | use_ok('Moose'); |
11 | } |
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12 | |
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13 | ## Roles |
14 | |
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15 | { |
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16 | package Eq; |
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17 | use Moose::Role; |
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18 | |
446e850f |
19 | requires 'equal_to'; |
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20 | |
446e850f |
21 | sub not_equal_to { |
22 | my ($self, $other) = @_; |
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23 | not $self->equal_to($other); |
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24 | } |
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25 | |
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26 | package Comparable; |
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27 | use Moose::Role; |
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28 | |
29 | with 'Eq'; |
30 | |
31 | requires 'compare'; |
32 | |
33 | sub equal_to { |
34 | my ($self, $other) = @_; |
35 | $self->compare($other) == 0; |
36 | } |
37 | |
38 | sub greater_than { |
39 | my ($self, $other) = @_; |
40 | $self->compare($other) == 1; |
41 | } |
42 | |
43 | sub less_than { |
44 | my ($self, $other) = @_; |
45 | $self->compare($other) == -1; |
46 | } |
47 | |
48 | sub greater_than_or_equal_to { |
49 | my ($self, $other) = @_; |
50 | $self->greater_than($other) || $self->equal_to($other); |
51 | } |
52 | |
53 | sub less_than_or_equal_to { |
54 | my ($self, $other) = @_; |
55 | $self->less_than($other) || $self->equal_to($other); |
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56 | } |
57 | |
58 | package Printable; |
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59 | use Moose::Role; |
60 | |
61 | requires 'to_string'; |
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62 | } |
63 | |
446e850f |
64 | ## Classes |
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65 | |
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66 | { |
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67 | package US::Currency; |
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68 | use Moose; |
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69 | |
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70 | with 'Comparable', 'Printable'; |
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71 | |
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72 | has 'amount' => (is => 'rw', isa => 'Num', default => 0); |
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73 | |
74 | sub compare { |
75 | my ($self, $other) = @_; |
76 | $self->amount <=> $other->amount; |
77 | } |
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78 | |
79 | sub to_string { |
80 | my $self = shift; |
81 | sprintf '$%0.2f USD' => $self->amount |
82 | } |
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83 | |
84 | __PACKAGE__->meta->make_immutable(debug => 0); |
446e850f |
85 | } |
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86 | |
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87 | ok(US::Currency->does('Comparable'), '... US::Currency does Comparable'); |
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88 | ok(US::Currency->does('Eq'), '... US::Currency does Eq'); |
9e93dd19 |
89 | ok(US::Currency->does('Printable'), '... US::Currency does Printable'); |
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90 | |
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91 | my $hundred = US::Currency->new(amount => 100.00); |
92 | isa_ok($hundred, 'US::Currency'); |
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93 | |
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94 | can_ok($hundred, 'amount'); |
95 | is($hundred->amount, 100, '... got the right amount'); |
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96 | |
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97 | can_ok($hundred, 'to_string'); |
98 | is($hundred->to_string, '$100.00 USD', '... got the right stringified value'); |
99 | |
100 | ok($hundred->does('Comparable'), '... US::Currency does Comparable'); |
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101 | ok($hundred->does('Eq'), '... US::Currency does Eq'); |
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102 | ok($hundred->does('Printable'), '... US::Currency does Printable'); |
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103 | |
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104 | my $fifty = US::Currency->new(amount => 50.00); |
105 | isa_ok($fifty, 'US::Currency'); |
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106 | |
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107 | can_ok($fifty, 'amount'); |
108 | is($fifty->amount, 50, '... got the right amount'); |
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109 | |
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110 | can_ok($fifty, 'to_string'); |
111 | is($fifty->to_string, '$50.00 USD', '... got the right stringified value'); |
112 | |
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113 | ok($hundred->greater_than($fifty), '... 100 gt 50'); |
114 | ok($hundred->greater_than_or_equal_to($fifty), '... 100 ge 50'); |
115 | ok(!$hundred->less_than($fifty), '... !100 lt 50'); |
116 | ok(!$hundred->less_than_or_equal_to($fifty), '... !100 le 50'); |
117 | ok(!$hundred->equal_to($fifty), '... !100 eq 50'); |
118 | ok($hundred->not_equal_to($fifty), '... 100 ne 50'); |
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119 | |
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120 | ok(!$fifty->greater_than($hundred), '... !50 gt 100'); |
121 | ok(!$fifty->greater_than_or_equal_to($hundred), '... !50 ge 100'); |
122 | ok($fifty->less_than($hundred), '... 50 lt 100'); |
123 | ok($fifty->less_than_or_equal_to($hundred), '... 50 le 100'); |
124 | ok(!$fifty->equal_to($hundred), '... !50 eq 100'); |
125 | ok($fifty->not_equal_to($hundred), '... 50 ne 100'); |
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126 | |
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127 | ok(!$fifty->greater_than($fifty), '... !50 gt 50'); |
128 | ok($fifty->greater_than_or_equal_to($fifty), '... !50 ge 50'); |
129 | ok(!$fifty->less_than($fifty), '... 50 lt 50'); |
130 | ok($fifty->less_than_or_equal_to($fifty), '... 50 le 50'); |
131 | ok($fifty->equal_to($fifty), '... 50 eq 50'); |
132 | ok(!$fifty->not_equal_to($fifty), '... !50 ne 50'); |
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133 | |
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134 | ## ... check some meta-stuff |
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135 | |
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136 | # Eq |
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137 | |
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138 | my $eq_meta = Eq->meta; |
139 | isa_ok($eq_meta, 'Moose::Meta::Role'); |
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140 | |
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141 | ok($eq_meta->has_method('not_equal_to'), '... Eq has_method not_equal_to'); |
142 | ok($eq_meta->requires_method('equal_to'), '... Eq requires_method not_equal_to'); |
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143 | |
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144 | # Comparable |
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145 | |
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146 | my $comparable_meta = Comparable->meta; |
147 | isa_ok($comparable_meta, 'Moose::Meta::Role'); |
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148 | |
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149 | ok($comparable_meta->does_role('Eq'), '... Comparable does Eq'); |
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150 | |
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151 | foreach my $method_name (qw( |
152 | equal_to not_equal_to |
153 | greater_than greater_than_or_equal_to |
154 | less_than less_than_or_equal_to |
155 | )) { |
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156 | ok($comparable_meta->has_method($method_name), '... Comparable has_method ' . $method_name); |
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157 | } |
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158 | |
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159 | ok($comparable_meta->requires_method('compare'), '... Comparable requires_method compare'); |
160 | |
161 | # Printable |
162 | |
163 | my $printable_meta = Printable->meta; |
164 | isa_ok($printable_meta, 'Moose::Meta::Role'); |
165 | |
166 | ok($printable_meta->requires_method('to_string'), '... Printable requires_method to_string'); |
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167 | |
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168 | # US::Currency |
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169 | |
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170 | my $currency_meta = US::Currency->meta; |
171 | isa_ok($currency_meta, 'Moose::Meta::Class'); |
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172 | |
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173 | ok($currency_meta->does_role('Comparable'), '... US::Currency does Comparable'); |
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174 | ok($currency_meta->does_role('Eq'), '... US::Currency does Eq'); |
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175 | ok($currency_meta->does_role('Printable'), '... US::Currency does Printable'); |
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176 | |
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177 | foreach my $method_name (qw( |
178 | amount |
179 | equal_to not_equal_to |
180 | compare |
181 | greater_than greater_than_or_equal_to |
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182 | less_than less_than_or_equal_to |
183 | to_string |
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184 | )) { |
185 | ok($currency_meta->has_method($method_name), '... US::Currency has_method ' . $method_name); |
186 | } |
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187 | |