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|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
module Language.GraphQL.AST.EncoderSpec
( spec
) where
import Language.GraphQL.AST
import Language.GraphQL.AST.Encoder
import Test.Hspec (Spec, context, describe, it, shouldBe, shouldStartWith, shouldEndWith, shouldNotContain)
import Test.QuickCheck (choose, oneof, forAll)
import Text.RawString.QQ (r)
import Data.Text.Lazy (cons, toStrict, unpack)
spec :: Spec
spec = do
describe "value" $ do
context "null value" $ do
let testNull formatter = value formatter Null `shouldBe` "null"
it "minified" $ testNull minified
it "pretty" $ testNull pretty
context "minified" $ do
it "escapes \\" $
value minified (String "\\") `shouldBe` "\"\\\\\""
it "escapes double quotes" $
value minified (String "\"") `shouldBe` "\"\\\"\""
it "escapes \\f" $
value minified (String "\f") `shouldBe` "\"\\f\""
it "escapes \\n" $
value minified (String "\n") `shouldBe` "\"\\n\""
it "escapes \\r" $
value minified (String "\r") `shouldBe` "\"\\r\""
it "escapes \\t" $
value minified (String "\t") `shouldBe` "\"\\t\""
it "escapes backspace" $
value minified (String "a\bc") `shouldBe` "\"a\\bc\""
context "escapes Unicode for chars less than 0010" $ do
it "Null" $ value minified (String "\x0000") `shouldBe` "\"\\u0000\""
it "bell" $ value minified (String "\x0007") `shouldBe` "\"\\u0007\""
context "escapes Unicode for char less than 0020" $ do
it "DLE" $ value minified (String "\x0010") `shouldBe` "\"\\u0010\""
it "EM" $ value minified (String "\x0019") `shouldBe` "\"\\u0019\""
context "encodes without escape" $ do
it "space" $ value minified (String "\x0020") `shouldBe` "\" \""
it "~" $ value minified (String "\x007E") `shouldBe` "\"~\""
context "pretty" $ do
it "uses strings for short string values" $
value pretty (String "Short text") `shouldBe` "\"Short text\""
it "uses block strings for text with new lines, with newline symbol" $
value pretty (String "Line 1\nLine 2")
`shouldBe` [r|"""
Line 1
Line 2
"""|]
it "uses block strings for text with new lines, with CR symbol" $
value pretty (String "Line 1\rLine 2")
`shouldBe` [r|"""
Line 1
Line 2
"""|]
it "uses block strings for text with new lines, with CR symbol followed by newline" $
value pretty (String "Line 1\r\nLine 2")
`shouldBe` [r|"""
Line 1
Line 2
"""|]
it "encodes as one line string if has escaped symbols" $ do
let
genNotAllowedSymbol = oneof
[ choose ('\x0000', '\x0008')
, choose ('\x000B', '\x000C')
, choose ('\x000E', '\x001F')
, pure '\x007F'
]
forAll genNotAllowedSymbol $ \x -> do
let
rawValue = "Short \n" <> cons x "text"
encoded = value pretty (String $ toStrict rawValue)
shouldStartWith (unpack encoded) "\""
shouldEndWith (unpack encoded) "\""
shouldNotContain (unpack encoded) "\"\"\""
it "Hello world" $ value pretty (String "Hello,\n World!\n\nYours,\n GraphQL.")
`shouldBe` [r|"""
Hello,
World!
Yours,
GraphQL.
"""|]
it "has only newlines" $ value pretty (String "\n") `shouldBe` [r|"""
"""|]
it "has newlines and one symbol at the begining" $
value pretty (String "a\n\n") `shouldBe` [r|"""
a
"""|]
it "has newlines and one symbol at the end" $
value pretty (String "\n\na") `shouldBe` [r|"""
a
"""|]
it "has newlines and one symbol in the middle" $
value pretty (String "\na\n") `shouldBe` [r|"""
a
"""|]
it "skip trailing whitespaces" $ value pretty (String " Short\ntext ")
`shouldBe` [r|"""
Short
text
"""|]
describe "definition" $
it "indents block strings in arguments" $
let arguments = [Argument "message" (String "line1\nline2")]
field = Field Nothing "field" arguments [] []
operation = DefinitionOperation $ SelectionSet $ pure field
in definition pretty operation `shouldBe` [r|{
field(message: """
line1
line2
""")
}
|]
|
