1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
require 'helper'
require 'will_paginate/array'
class ArrayPaginationTest < Test::Unit::TestCase
def setup ; end
def test_simple
collection = ('a'..'e').to_a
[{ :page => 1, :per_page => 3, :expected => %w( a b c ) },
{ :page => 2, :per_page => 3, :expected => %w( d e ) },
{ :page => 1, :per_page => 5, :expected => %w( a b c d e ) },
{ :page => 3, :per_page => 5, :expected => [] },
].
each do |conditions|
expected = conditions.delete :expected
assert_equal expected, collection.paginate(conditions)
end
end
def test_defaults
result = (1..50).to_a.paginate
assert_equal 1, result.current_page
assert_equal 30, result.size
end
def test_deprecated_api
assert_raise(ArgumentError) { [].paginate(2) }
assert_raise(ArgumentError) { [].paginate(2, 10) }
end
def test_total_entries_has_precedence
result = %w(a b c).paginate :total_entries => 5
assert_equal 5, result.total_entries
end
def test_argument_error_with_params_and_another_argument
assert_raise ArgumentError do
[].paginate({}, 5)
end
end
def test_paginated_collection
entries = %w(a b c)
collection = create(2, 3, 10) do |pager|
assert_equal entries, pager.replace(entries)
end
assert_equal entries, collection
assert_respond_to_all collection, %w(total_pages each offset size current_page per_page total_entries)
assert_kind_of Array, collection
assert_instance_of Array, collection.entries
assert_equal 3, collection.offset
assert_equal 4, collection.total_pages
assert !collection.out_of_bounds?
end
def test_previous_next_pages
collection = create(1, 1, 3)
assert_nil collection.previous_page
assert_equal 2, collection.next_page
collection = create(2, 1, 3)
assert_equal 1, collection.previous_page
assert_equal 3, collection.next_page
collection = create(3, 1, 3)
assert_equal 2, collection.previous_page
assert_nil collection.next_page
end
def test_out_of_bounds
entries = create(2, 3, 2){}
assert entries.out_of_bounds?
entries = create(1, 3, 2){}
assert !entries.out_of_bounds?
end
def test_guessing_total_count
entries = create do |pager|
# collection is shorter than limit
pager.replace array
end
assert_equal 8, entries.total_entries
entries = create(2, 5, 10) do |pager|
# collection is shorter than limit, but we have an explicit count
pager.replace array
end
assert_equal 10, entries.total_entries
entries = create do |pager|
# collection is the same as limit; we can't guess
pager.replace array(5)
end
assert_equal nil, entries.total_entries
entries = create do |pager|
# collection is empty; we can't guess
pager.replace array(0)
end
assert_equal nil, entries.total_entries
entries = create(1) do |pager|
# collection is empty and we're on page 1,
# so the whole thing must be empty, too
pager.replace array(0)
end
assert_equal 0, entries.total_entries
end
def test_invalid_page
bad_inputs = [0, -1, nil, '', 'Schnitzel']
bad_inputs.each do |bad|
assert_raise(WillPaginate::InvalidPage) { create bad }
end
end
def test_invalid_per_page_setting
assert_raise(ArgumentError) { create(1, -1) }
end
def test_page_count_was_removed
assert_raise(NoMethodError) { create.page_count }
# It's `total_pages` now.
end
private
def create(page = 2, limit = 5, total = nil, &block)
if block_given?
WillPaginate::Collection.create(page, limit, total, &block)
else
WillPaginate::Collection.new(page, limit, total)
end
end
def array(size = 3)
Array.new(size)
end
end
|
