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
|
require 'stringio'
shared_examples_for "handling errors in application initialization" do
before :each do
@stub = setup_rails_stub('foobar')
@stub.use_vendor_rails('minimal')
end
after :each do
teardown_rails_stub
end
it "raises an AppInitError if the spawned app raises a standard exception during startup" do
File.prepend(@stub.environment_rb, "raise 'This is a dummy exception.'\n")
begin
spawn_stub_application(@stub, "print_exceptions" => false).close
violated "Spawning the application should have raised an AppInitError."
rescue AppInitError => e
e.child_exception.message.should == "This is a dummy exception."
end
end
it "raises an AppInitError if the spawned app raises a custom-defined exception during startup" do
File.prepend(@stub.environment_rb, %{
class MyError < StandardError
end
raise MyError, "This is a custom exception."
})
begin
spawn_stub_application(@stub, "print_exceptions" => false).close
violated "Spawning the application should have raised an AppInitError."
rescue AppInitError => e
e.child_exception.message.should == "This is a custom exception. (MyError)"
end
end
it "raises an AppInitError if the spawned app calls exit() during startup" do
File.prepend(@stub.environment_rb, "exit\n")
begin
spawn_stub_application(@stub, "print_exceptions" => false).close
violated "Spawning the application should have raised an AppInitError."
rescue AppInitError => e
e.child_exception.class.should == SystemExit
end
end
it "prints the exception to STDERR if the spawned app raised an error" do
old_stderr = STDERR
file = File.new('output.tmp', 'w+')
begin
Object.send(:remove_const, "STDERR") rescue nil
Object.const_set("STDERR", file)
File.prepend(@stub.environment_rb, "raise 'This is a dummy exception.'\n")
block = lambda do
spawn_stub_application(@stub).close
end
block.should raise_error(AppInitError)
file.rewind
data = file.read
data.should =~ /spawn_stub_application/
data.should =~ /spawner_error_handling_spec\.rb/
ensure
Object.send(:remove_const, "STDERR") rescue nil
Object.const_set("STDERR", old_stderr)
file.close rescue nil
File.unlink('output.tmp') rescue nil
end
end
end
shared_examples_for "handling errors in framework initialization" do
include Utils
it "raises FrameworkInitError if the framework could not be loaded" do
block = lambda do
load_nonexistant_framework(:print_framework_loading_exceptions => false).close
end
block.should raise_error(FrameworkInitError)
end
it "prints the exception to STDERR if the framework could not be loaded" do
old_stderr = STDERR
file = File.new('output.tmp', 'w+')
begin
Object.send(:remove_const, "STDERR") rescue nil
Object.const_set("STDERR", file)
block = lambda do
load_nonexistant_framework.close
end
block.should raise_error(FrameworkInitError)
file.rewind
data = file.read
data.should =~ /load_nonexistant_framework/
data.should =~ /spawner_error_handling_spec\.rb/
ensure
Object.send(:remove_const, "STDERR") rescue nil
Object.const_set("STDERR", old_stderr)
file.close rescue nil
File.unlink('output.tmp') rescue nil
end
end
end
|
