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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
require 'spec_helper'
class TablePrint::Row
attr_accessor :groups, :cells
end
include TablePrint
describe Fingerprinter do
before(:each) do
Sandbox.cleanup!
end
describe "#lift" do
it "turns a single level of columns into a single row" do
rows = Fingerprinter.new.lift([Column.new(:name => "name")], OpenStruct.new(:name => "dale carnegie"))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
row.cells.should == {'name' => "dale carnegie"}
end
it "uses the display_method to get the data" do
rows = Fingerprinter.new.lift([Column.new(:name => "name of work", :display_method => "title")], OpenStruct.new(:title => "of mice and men"))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
row.cells.should == {'name of work' => "of mice and men"}
end
it "turns multiple levels of columns into multiple rows" do
rows = Fingerprinter.new.lift([Column.new(:name => "name"), Column.new(:name => "books.title")], OpenStruct.new(:name => "dale carnegie", :books => [OpenStruct.new(:title => "how to make influences")]))
rows.length.should == 1
row = rows.first
row.children.length.should == 1
row.cells.should == {'name' => "dale carnegie"}
row.children.first.children.first.cells.should == {'books.title' => "how to make influences"}
end
it "doesn't choke if an association doesn't exist" do
rows = Fingerprinter.new.lift([Column.new(:name => "name"), Column.new(:name => "books.title")], OpenStruct.new(:name => "dale carnegie", :books => []))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
end
it "allows a lambda as the display_method" do
rows = Fingerprinter.new.lift([Column.new(:name => "name", :display_method => lambda { |row| row.name.gsub(/[aeiou]/, "") })], OpenStruct.new(:name => "dale carnegie"))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
row.cells.should == {'name' => "dl crng"}
end
it "doesn't puke if a lambda returns nil" do
rows = Fingerprinter.new.lift([Column.new(:name => "name", :display_method => lambda { |row| nil })], OpenStruct.new(:name => "dale carnegie"))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
row.cells.should == {'name' => nil}
end
end
describe "#hash_to_rows" do
it "uses hashes with empty values as column names" do
f = Fingerprinter.new
f.instance_variable_set("@column_names_by_display_method", {"name" => "name"})
rows = f.hash_to_rows("", {'name' => {}}, OpenStruct.new(:name => "dale carnegie"))
rows.length.should == 1
row = rows.first
row.children.length.should == 0
row.cells.should == {'name' => 'dale carnegie'}
end
it 'recurses for subsequent levels of hash' do
f = Fingerprinter.new
f.instance_variable_set("@column_names_by_display_method", {"name" => "name", "books.title" => "books.title"})
rows = f.hash_to_rows("", {'name' => {}, 'books' => {'title' => {}}}, [OpenStruct.new(:name => 'dale carnegie', :books => [OpenStruct.new(:title => "hallmark")])])
rows.length.should == 1
top_row = rows.first
top_row.cells.should == {'name' => 'dale carnegie'}
top_row.children.length.should == 1
top_row.children.first.child_count.should == 1
bottom_row = top_row.children.first.children.first
bottom_row.cells.should == {'books.title' => 'hallmark'}
end
end
describe "#populate_row" do
it "fills a row by calling methods on the target object" do
f = Fingerprinter.new
f.instance_variable_set("@column_names_by_display_method", {"title" => "title", "author" => "author"})
row = f.populate_row("", {'title' => {}, 'author' => {}, 'publisher' => {'address' => {}}}, OpenStruct.new(:title => "foobar", :author => "bobby"))
row.cells.should == {'title' => "foobar", 'author' => 'bobby'}
end
it "uses the provided prefix to name the cells" do
f = Fingerprinter.new
f.instance_variable_set("@column_names_by_display_method", {"bar.title" => "bar.title", "bar.author" => "bar.author"})
row = f.populate_row("bar", {'title' => {}, 'author' => {}, 'publisher' => {'address' => {}}}, OpenStruct.new(:title => "foobar", :author => "bobby"))
row.cells.should == {'bar.title' => "foobar", 'bar.author' => 'bobby'}
end
it "uses the column name as the cell name but uses the display method to get the value" do
f = Fingerprinter.new
f.instance_variable_set("@column_names_by_display_method", {"bar.title" => "title", "bar.author" => "bar.author"})
row = f.populate_row("bar", {'title' => {}, 'author' => {}, 'publisher' => {'address' => {}}}, OpenStruct.new(:title => "foobar", :author => "bobby"))
row.cells.should == {'title' => "foobar", 'bar.author' => 'bobby'}
end
context 'using a hash as input_data' do
it "fills a row by calling methods on the target object" do
f = Fingerprinter.new
f.instance_variable_set('@column_names_by_display_method', {'title' => 'title', 'author' => 'author'})
input_data = {:title => 'foobar', :author => 'bobby'}
row = f.populate_row('', {'title' => {}, 'author' => {}, 'publisher' => {'address' => {}}}, input_data)
row.cells.should == {'title' => 'foobar', 'author' => 'bobby'}
end
it "fills a row by calling methods on the target object" do
f = Fingerprinter.new
f.instance_variable_set('@column_names_by_display_method', {'title' => 'title', 'author' => 'author'})
input_data = {'title' => 'foobar', 'author' => 'bobby'}
row = f.populate_row('', {'title' => {}, 'author' => {}, 'publisher' => {'address' => {}}}, input_data)
row.cells.should == {'title' => 'foobar', 'author' => 'bobby'}
end
end
context "when the method isn't found" do
it "sets the cell value to an error string" do
f = Fingerprinter.new
f.instance_variable_set('@column_names_by_display_method', {'foo' => 'foo'})
row = f.populate_row('', {'foo' => {}}, Hash.new)
row.cells.should == {'foo' => 'Method Missing'}
end
end
end
describe "#create_child_group" do
it "adds the next level of column information to the prefix" do
f = Fingerprinter.new
books = []
f.should_receive(:hash_to_rows).with("author.books", {'title' => {}}, books).and_return([])
groups = f.create_child_group("author", {'books' => {'title' => {}}}, OpenStruct.new(:name => "bobby", :books => books))
groups.length.should == 1
groups.first.should be_a TablePrint::RowGroup
end
end
describe "#columns_to_handle" do
it "returns hash keys that have an empty hash as the value" do
Fingerprinter.new.handleable_columns({'name' => {}, 'books' => {'title' => {}}}).should == ["name"]
end
end
describe "#columns_to_pass" do
it "returns hash keys that do not have an empty hash as the value" do
Fingerprinter.new.passable_columns({'name' => {}, 'books' => {'title' => {}}}).should == ["books"]
end
end
describe "#chain_to_nested_hash" do
it "turns a list of methods into a nested hash" do
Fingerprinter.new.display_method_to_nested_hash("books").should == {'books' => {}}
Fingerprinter.new.display_method_to_nested_hash("reviews.user").should == {'reviews' => {'user' => {}}}
end
end
describe "#columns_to_nested_hash" do
it "splits the column names into a nested hash" do
Fingerprinter.new.display_methods_to_nested_hash(["books.name"]).should == {'books' => {'name' => {}}}
Fingerprinter.new.display_methods_to_nested_hash(
["books.name", "books.publisher", "reviews.rating", "reviews.user.email", "reviews.user.id"]
).should == {'books' => {'name' => {}, 'publisher' => {}}, 'reviews' => {'rating' => {}, 'user' => {'email' => {}, 'id' => {}}}}
end
end
end
|
