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-- Copyright (C) 2010-2012 John Millikin <john@john-millikin.com>
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
module DBusTests.Signature (test_Signature) where
import Data.Maybe
import Test.QuickCheck
import Test.Tasty
import Test.Tasty.HUnit
import Test.Tasty.QuickCheck
import DBus
import DBusTests.Util
test_Signature :: TestTree
test_Signature = testGroup "Signature"
[ test_BuildSignature
, test_ParseSignature
, test_ParseInvalid
, test_FormatSignature
, test_IsAtom
, test_ShowType
]
test_BuildSignature :: TestTree
test_BuildSignature = testProperty "signature" prop where
prop = forAll gen_SignatureTypes check
check types = case signature types of
Nothing -> False
Just sig -> signatureTypes sig == types
test_ParseSignature :: TestTree
test_ParseSignature = testProperty "parseSignature" prop where
prop = forAll gen_SignatureString check
check (s, types) = case parseSignature s of
Nothing -> False
Just sig -> signatureTypes sig == types
test_ParseInvalid :: TestTree
test_ParseInvalid = testCase "parse-invalid" $ do
-- at most 255 characters
assertBool "valid parse failed" $
isJust (parseSignature (replicate 254 'y'))
assertBool "valid parse failed" $
isJust (parseSignature (replicate 255 'y'))
Nothing @=? parseSignature (replicate 256 'y')
-- length also enforced by 'signature'
assertBool "valid parse failed" $
isJust (signature (replicate 255 TypeWord8))
Nothing @=? signature (replicate 256 TypeWord8)
-- struct code
Nothing @=? parseSignature "r"
-- empty struct
Nothing @=? parseSignature "()"
Nothing @=? signature [TypeStructure []]
-- dict code
Nothing @=? parseSignature "e"
-- non-atomic dict key
Nothing @=? parseSignature "a{vy}"
Nothing @=? signature [TypeDictionary TypeVariant TypeVariant]
test_FormatSignature :: TestTree
test_FormatSignature = testProperty "formatSignature" prop where
prop = forAll gen_SignatureString check
check (s, _) = let
Just sig = parseSignature s
in formatSignature sig == s
test_IsAtom :: TestTree
test_IsAtom = testCase "IsAtom" $ do
let Just sig = signature []
assertAtom TypeSignature sig
test_ShowType :: TestTree
test_ShowType = testCase "show-type" $ do
"Bool" @=? show TypeBoolean
"Bool" @=? show TypeBoolean
"Word8" @=? show TypeWord8
"Word16" @=? show TypeWord16
"Word32" @=? show TypeWord32
"Word64" @=? show TypeWord64
"Int16" @=? show TypeInt16
"Int32" @=? show TypeInt32
"Int64" @=? show TypeInt64
"Double" @=? show TypeDouble
"UnixFd" @=? show TypeUnixFd
"String" @=? show TypeString
"Signature" @=? show TypeSignature
"ObjectPath" @=? show TypeObjectPath
"Variant" @=? show TypeVariant
"[Word8]" @=? show (TypeArray TypeWord8)
"Dict Word8 (Dict Word8 Word8)" @=? show (TypeDictionary TypeWord8 (TypeDictionary TypeWord8 TypeWord8))
"(Word8, Word16)" @=? show (TypeStructure [TypeWord8, TypeWord16])
gen_SignatureTypes :: Gen [Type]
gen_SignatureTypes = do
(_, ts) <- gen_SignatureString
return ts
gen_SignatureString :: Gen (String, [Type])
gen_SignatureString = gen where
anyType = oneof [atom, container]
atom = elements
[ ("b", TypeBoolean)
, ("y", TypeWord8)
, ("q", TypeWord16)
, ("u", TypeWord32)
, ("t", TypeWord64)
, ("n", TypeInt16)
, ("i", TypeInt32)
, ("x", TypeInt64)
, ("d", TypeDouble)
, ("h", TypeUnixFd)
, ("s", TypeString)
, ("o", TypeObjectPath)
, ("g", TypeSignature)
]
container = oneof
[ return ("v", TypeVariant)
, array
, dict
, struct
]
array = do
(tCode, tEnum) <- anyType
return ('a':tCode, TypeArray tEnum)
dict = do
(kCode, kEnum) <- atom
(vCode, vEnum) <- anyType
return (concat ["a{", kCode, vCode, "}"], TypeDictionary kEnum vEnum)
struct = do
ts <- listOf1 (halfSized anyType)
let (codes, enums) = unzip ts
return ("(" ++ concat codes ++ ")", TypeStructure enums)
gen = do
types <- listOf anyType
let (codes, enums) = unzip types
let chars = concat codes
if length chars > 255
then halfSized gen
else return (chars, enums)
instance Arbitrary Signature where
arbitrary = do
ts <- gen_SignatureTypes
let Just sig = signature ts
return sig
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