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
|
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE ScopedTypeVariables #-}
module ModifiersSpec.UseForPositionalArgumentsSpec where
import Data.List
import System.Environment
import Test.Hspec
import Util
import WithCli
import WithCli.Pure
data WithPositionalArguments
= WithPositionalArguments {
positionalArguments :: [String],
someFlag :: Bool
}
deriving (Generic, Show, Eq)
instance HasArguments WithPositionalArguments
data WithMultiplePositionalArguments
= WithMultiplePositionalArguments {
positionalArgumentsA :: [String],
positionalArgumentsB :: [String],
someOtherFlag :: Bool
}
deriving (Generic, Show, Eq)
instance HasArguments WithMultiplePositionalArguments
spec :: Spec
spec = do
it "allows positionalArguments" $ do
modsParse
[UseForPositionalArguments "positionalArguments" "type"]
"foo bar --some-flag"
`shouldBe` Success (WithPositionalArguments ["foo", "bar"] True)
it "disallows specifying the option used for positional arguments" $ do
modsParse
[UseForPositionalArguments "positionalArguments" "type"]
"--positional-arguments foo"
`shouldBe`
(Errors "unrecognized option `--positional-arguments'\n"
:: Result WithPositionalArguments)
it "complains about fields that don't have type [String]" $ do
modsParse
[UseForPositionalArguments "someFlag" "type"]
"doesn't matter"
`shouldBe`
(Errors "UseForPositionalArguments can only be used for fields of type [String] not Bool\n"
:: Result WithPositionalArguments)
it "includes the type of positional arguments in the help output in upper-case" $ do
let OutputAndExit output = modsParse
[UseForPositionalArguments "positionalArguments" "foo"]
"--help" :: Result WithPositionalArguments
output `shouldSatisfy` ("prog-name [OPTIONS] [FOO]\n" `isPrefixOf`)
it "complains about multiple PositionalArguments fields" $ do
let modifiers =
UseForPositionalArguments "positionalArgumentsA" "foo" :
UseForPositionalArguments "positionalArgumentsB" "bar" :
[]
(modsParse modifiers [] :: Result WithMultiplePositionalArguments)
`shouldBe` Errors "UseForPositionalArguments can only be used once\n"
context "when used without selector" $ do
it "automatically uses positional arguments for [Int]" $ do
withArgs (words "1 2 3") $
withCli $ \ (xs :: [Int]) -> do
xs `shouldBe` [1, 2, 3]
it "automatically uses positional arguments for [String]" $ do
withArgs (words "foo bar") $
withCli $ \ (xs :: [String]) -> do
xs `shouldBe` (words "foo bar")
|
