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
|
{-# LANGUAGE PackageImports, CPP #-}
module Main (main) where
import "hspec" Test.Hspec
#if !(MIN_VERSION_base(4,8,0))
import Control.Applicative
#endif
import qualified Test.Hspec as H
import qualified Control.Exception as E
import System.Exit
import System.IO.Silently
main :: IO ()
main = hspec spec
failingSpec :: H.Spec
failingSpec = do
H.describe "foo" $ do
H.it "foo 1" success
H.it "foo 2" failure
H.describe "bar" $ do
H.it "bar 1" failure
H.it "bar 2" success
H.describe "baz" $ do
H.it "baz 1" failure
where
success = H.expect "success" True
failure = H.expect "failure" False
runSpec :: H.Spec -> IO [String]
runSpec s = lines <$> capture_ (H.hspec s `E.catch` ignore)
where
ignore :: ExitCode -> IO ()
ignore _ = return ()
spec :: Spec
spec = do
describe "hspec" $ do
it "exits with exitFailure if not all examples pass" $ do
H.hspec failingSpec `shouldThrow` (== ExitFailure 1)
it "prints a report of the test run" $ do
runSpec failingSpec `shouldReturn` [
"/foo/foo 1/ OK"
, "/foo/foo 2/ FAILED"
, "failure"
, "/foo/bar/bar 1/ FAILED"
, "failure"
, "/foo/bar/bar 2/ OK"
, "/baz/baz 1/ FAILED"
, "failure"
, "5 example(s), 3 failure(s)"
]
describe "evaluateExpectation" $ do
it "returns Success if expectation holds" $ do
H.evaluateExpectation (H.expect "foo" True)
`shouldReturn` H.Success
it "returns Failure if expectation does not holds" $ do
H.evaluateExpectation (H.expect "foo" False)
`shouldReturn` H.Failure "foo"
it "returns Failure on uncaught exceptions" $ do
H.evaluateExpectation (E.throwIO $ E.ErrorCall "foobar")
`shouldReturn` H.Failure "*** Exception: foobar"
it "re-throws asynchronous exceptions" $ do
H.evaluateExpectation (E.throwIO E.UserInterrupt)
`shouldThrow` (== E.UserInterrupt)
describe "shouldBe" $ do
it "succeeds if arguments are equal" $ do
H.evaluateExpectation (23 `H.shouldBe` (23 :: Int))
`shouldReturn` H.Success
it "fails if arguments are not equal" $ do
H.evaluateExpectation (23 `H.shouldBe` (42 :: Int))
`shouldReturn` H.Failure "expected: 42\n but got: 23"
describe "shouldReturn" $ do
it "succeeds if arguments represent equal values" $ do
H.evaluateExpectation (return 23 `H.shouldReturn` (23 :: Int))
`shouldReturn` H.Success
it "fails if arguments do not represent equal values" $ do
H.evaluateExpectation (return 23 `H.shouldReturn` (42 :: Int))
`shouldReturn` H.Failure "expected: 42\n but got: 23"
|
