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
|
# frozen_string_literal: true
require "abstract_unit"
class MiddlewareStackTest < ActiveSupport::TestCase
class Base
def initialize(app)
@app = app
end
def call(env)
@app.call(env)
end
end
class FooMiddleware < Base; end
class BarMiddleware < Base; end
class BazMiddleware < Base; end
class HiyaMiddleware < Base; end
class BlockMiddleware < Base
attr_reader :block
def initialize(app, &block)
super(app)
@block = block
end
end
def setup
@stack = ActionDispatch::MiddlewareStack.new
@stack.use FooMiddleware
@stack.use BarMiddleware
end
def test_delete_works
assert_difference "@stack.size", -1 do
@stack.delete FooMiddleware
end
end
test "use should push middleware as class onto the stack" do
assert_difference "@stack.size" do
@stack.use BazMiddleware
end
assert_equal BazMiddleware, @stack.last.klass
end
test "use should push middleware class with arguments onto the stack" do
assert_difference "@stack.size" do
@stack.use BazMiddleware, true, foo: "bar"
end
assert_equal BazMiddleware, @stack.last.klass
assert_equal([true, { foo: "bar" }], @stack.last.args)
end
test "use should push middleware class with block arguments onto the stack" do
proc = Proc.new { }
assert_difference "@stack.size" do
@stack.use(BlockMiddleware, &proc)
end
assert_equal BlockMiddleware, @stack.last.klass
assert_equal proc, @stack.last.block
end
test "insert inserts middleware at the integer index" do
@stack.insert(1, BazMiddleware)
assert_equal BazMiddleware, @stack[1].klass
end
test "insert_after inserts middleware after the integer index" do
@stack.insert_after(1, BazMiddleware)
assert_equal BazMiddleware, @stack[2].klass
end
test "insert_before inserts middleware before another middleware class" do
@stack.insert_before(BarMiddleware, BazMiddleware)
assert_equal BazMiddleware, @stack[1].klass
end
test "insert_after inserts middleware after another middleware class" do
@stack.insert_after(BarMiddleware, BazMiddleware)
assert_equal BazMiddleware, @stack[2].klass
end
test "swaps one middleware out for another" do
assert_equal FooMiddleware, @stack[0].klass
@stack.swap(FooMiddleware, BazMiddleware)
assert_equal BazMiddleware, @stack[0].klass
end
test "swaps one middleware out for same middleware class" do
assert_equal FooMiddleware, @stack[0].klass
@stack.swap(FooMiddleware, FooMiddleware, Proc.new { |env| [500, {}, ["error!"]] })
assert_equal FooMiddleware, @stack[0].klass
end
test "unshift adds a new middleware at the beginning of the stack" do
@stack.unshift MiddlewareStackTest::BazMiddleware
assert_equal BazMiddleware, @stack.first.klass
end
test "raise an error on invalid index" do
assert_raise RuntimeError do
@stack.insert(HiyaMiddleware, BazMiddleware)
end
assert_raise RuntimeError do
@stack.insert_after(HiyaMiddleware, BazMiddleware)
end
end
test "can check if Middleware are equal - Class" do
assert_equal @stack.last, BarMiddleware
end
test "includes a class" do
assert_equal true, @stack.include?(BarMiddleware)
end
test "can check if Middleware are equal - Middleware" do
assert_equal @stack.last, @stack.last
end
test "instruments the execution of middlewares" do
app = @stack.build(proc { |env| [200, {}, []] })
env = {}
events = []
subscriber = proc do |*args|
events << ActiveSupport::Notifications::Event.new(*args)
end
ActiveSupport::Notifications.subscribed(subscriber, "process_middleware.action_dispatch") do
app.call(env)
end
assert_equal 2, events.count
assert_equal ["MiddlewareStackTest::BarMiddleware", "MiddlewareStackTest::FooMiddleware"], events.map { |e| e.payload[:middleware] }
end
test "includes a middleware" do
assert_equal true, @stack.include?(ActionDispatch::MiddlewareStack::Middleware.new(BarMiddleware, nil, nil))
end
end
|
