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{-# LANGUAGE NoMonomorphismRestriction #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# OPTIONS_GHC -fno-warn-name-shadowing #-}
{-# OPTIONS_GHC -fno-warn-incomplete-uni-patterns #-}
module Test.Hspec.Core.QuickCheck.UtilSpec (spec) where
import Prelude ()
import Helper
import qualified Test.QuickCheck.Property as QCP
import Test.Hspec.Core.QuickCheck.Util
deriving instance Eq QuickCheckResult
deriving instance Eq Status
deriving instance Eq QuickCheckFailure
spec :: Spec
spec = do
describe "formatNumbers" $ do
it "includes number of tests" $ do
formatNumbers 1 0 `shouldBe` "(after 1 test)"
it "pluralizes number of tests" $ do
formatNumbers 3 0 `shouldBe` "(after 3 tests)"
it "includes number of shrinks" $ do
formatNumbers 3 1 `shouldBe` "(after 3 tests and 1 shrink)"
it "pluralizes number of shrinks" $ do
formatNumbers 3 3 `shouldBe` "(after 3 tests and 3 shrinks)"
describe "stripSuffix" $ do
it "drops the given suffix from a list" $ do
stripSuffix "bar" "foobar" `shouldBe` Just "foo"
describe "splitBy" $ do
it "splits a string by a given infix" $ do
splitBy "bar" "foo bar baz" `shouldBe` Just ("foo ", " baz")
describe "parseQuickCheckResult" $ do
let
args = stdArgs {chatty = False, replay = Just (mkGen 0, 0)}
qc = quickCheckWithResult args
context "with Success" $ do
let p :: Int -> Bool
p n = n == n
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn`
QuickCheckResult 100 "+++ OK, passed 100 tests." QuickCheckSuccess
it "includes labels" $ do
parseQuickCheckResult <$> qc (label "unit" p) `shouldReturn`
QuickCheckResult 100 "+++ OK, passed 100 tests (100% unit)." QuickCheckSuccess
context "with GaveUp" $ do
let p :: Int -> Property
p n = (n == 1234) ==> True
qc = quickCheckWithResult args {maxSuccess = 2, maxDiscardRatio = 1}
result = QuickCheckResult 0 "" (QuickCheckOtherFailure "Gave up after 0 tests; 2 discarded!")
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn` result
it "includes verbose output" $ do
let
info = intercalate "\n" [
"Skipped (precondition false):"
, "0"
, ""
, "Skipped (precondition false):"
, "0"
]
parseQuickCheckResult <$> qc (verbose p) `shouldReturn` result {quickCheckResultInfo = info}
context "with NoExpectedFailure" $ do
let
p :: Int -> Property
p _ = expectFailure True
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn`
QuickCheckResult 100 "" (QuickCheckOtherFailure "Passed 100 tests (expected failure).")
it "includes verbose output" $ do
let
info = intercalate "\n" [
"Passed:"
, "0"
, ""
, "Passed:"
, "23"
]
parseQuickCheckResult <$> quickCheckWithResult args {maxSuccess = 2} (verbose p) `shouldReturn`
QuickCheckResult 2 info (QuickCheckOtherFailure "Passed 2 tests (expected failure).")
context "with cover" $ do
context "without checkCoverage" $ do
let
p :: Int -> Property
p n = cover 10 (n == 5) "is 5" True
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn`
QuickCheckResult 100 "+++ OK, passed 100 tests (1% is 5).\n\nOnly 1% is 5, but expected 10%" QuickCheckSuccess
it "includes verbose output" $ do
let
info = intercalate "\n" [
"Passed:"
, "0"
, ""
, "Passed:"
, "23"
, ""
#if MIN_VERSION_QuickCheck(2,15,0)
, "+++ OK, passed 2 tests (0% is 5)."
#else
, "+++ OK, passed 2 tests."
#endif
, ""
, "Only 0% is 5, but expected 10%"
]
parseQuickCheckResult <$> quickCheckWithResult args {maxSuccess = 2} (verbose p) `shouldReturn`
QuickCheckResult 2 info QuickCheckSuccess
context "with checkCoverage" $ do
let
p :: Int -> Property
p n = checkCoverage $ cover 10 (n == 23) "is 23" True
failure :: QuickCheckFailure
failure = QCFailure {
quickCheckFailureNumShrinks = 0
, quickCheckFailureException = Nothing
, quickCheckFailureReason = "Insufficient coverage"
, quickCheckFailureCounterexample = [
" 0.9% is 23"
, ""
, "Only 0.9% is 23, but expected 10.0%"
]
}
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn`
QuickCheckResult 800 "" (QuickCheckFailure failure)
it "includes verbose output" $ do
-- This off-by-one error was fixed in QuickCheck 2.15
#if MIN_VERSION_QuickCheck(2,15,0)
let info = intercalate "\n\n" (replicate 800 "Passed:")
#else
let info = intercalate "\n\n" (replicate 799 "Passed:")
#endif
parseQuickCheckResult <$> qc (verbose . p) `shouldReturn`
QuickCheckResult 800 info (QuickCheckFailure failure)
context "with Failure" $ do
context "with single-line failure reason" $ do
let
p :: Int -> Bool
p = (< 1)
err = "Falsified"
result = QuickCheckResult 4 "" (QuickCheckFailure $ QCFailure 2 Nothing err ["1"])
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn` result
it "includes verbose output" $ do
let info = intercalate "\n" [
"Passed:"
, "0"
, ""
, "Passed:"
, "0"
, ""
, "Passed:"
, "-2"
, ""
, "Failed:"
, "3"
, ""
, "Passed:"
, "0"
, ""
, "Failed:"
, "2"
, ""
, "Passed:"
, "0"
, ""
, "Failed:"
, "1"
, ""
, "Passed:"
, "0"
]
parseQuickCheckResult <$> qc (verbose p) `shouldReturn` result {quickCheckResultInfo = info}
context "with multi-line failure reason" $ do
let
p :: Int -> QCP.Result
p n = if n /= 2 then QCP.succeeded else QCP.failed {QCP.reason = err}
err = "foo\nbar"
result = QuickCheckResult 5 "" (QuickCheckFailure $ QCFailure 0 Nothing err ["2"])
it "parses result" $ do
parseQuickCheckResult <$> qc p `shouldReturn` result
it "includes verbose output" $ do
let info = intercalate "\n" [
"Passed:"
, "0"
, ""
, "Passed:"
, "0"
, ""
, "Passed:"
, "-2"
, ""
, "Passed:"
, "3"
, ""
, "Failed:"
, "2"
, ""
, "Passed:"
, "0"
, ""
, "Passed:"
, "1"
]
parseQuickCheckResult <$> qc (verbose p) `shouldReturn` result {quickCheckResultInfo = info}
context "with HUnit assertion" $ do
let p :: Int -> Int -> Expectation
p m n = do
m `shouldBe` n
it "includes counterexample" $ do
result <- qc p
let QuickCheckResult _ _ (QuickCheckFailure r) = parseQuickCheckResult result
quickCheckFailureCounterexample r `shouldBe` ["0", "1"]
|
