blob: 0546e793fee16b971aec5c9492533acbaee84538 (
plain) (
blame)
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
|
require 'cases/helper'
if ActiveRecord::Base.connection.supports_explain?
class ExplainSubscriberTest < ActiveRecord::TestCase
SUBSCRIBER = ActiveRecord::ExplainSubscriber.new
def test_collects_nothing_if_available_queries_for_explain_is_nil
with_queries(nil) do
SUBSCRIBER.call
assert_nil Thread.current[:available_queries_for_explain]
end
end
def test_collects_nothing_if_the_payload_has_an_exception
with_queries([]) do |queries|
SUBSCRIBER.call(:exception => Exception.new)
assert queries.empty?
end
end
def test_collects_nothing_for_ignored_payloads
with_queries([]) do |queries|
ActiveRecord::ExplainSubscriber::IGNORED_PAYLOADS.each do |ip|
SUBSCRIBER.call(:name => ip)
end
assert queries.empty?
end
end
def test_collects_pairs_of_queries_and_binds
sql = 'select 1 from users'
binds = [1, 2]
with_queries([]) do |queries|
SUBSCRIBER.call(:name => 'SQL', :sql => sql, :binds => binds)
assert_equal 1, queries.size
assert_equal sql, queries[0][0]
assert_equal binds, queries[0][1]
end
end
def test_collects_nothing_if_the_statement_is_only_partially_matched
with_queries([]) do |queries|
SUBSCRIBER.call(:name => 'SQL', :sql => 'select_db yo_mama')
assert queries.empty?
end
end
def test_collects_nothing_if_unexplained_sqls
with_queries([]) do |queries|
SUBSCRIBER.call(:name => 'SQL', :sql => 'SHOW max_identifier_length')
assert queries.empty?
end
end
def with_queries(queries)
Thread.current[:available_queries_for_explain] = queries
yield queries
ensure
Thread.current[:available_queries_for_explain] = nil
end
end
end
|
