forked from OSS/graphql
2760bd8ee1
Fixes #39. String containing control sequences should be encoded as simple strings even if they contain newlines, since the block strings can contain only SourceCharacters.
134 lines
4.7 KiB
Haskell
134 lines
4.7 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE QuasiQuotes #-}
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module Language.GraphQL.AST.EncoderSpec
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( spec
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) where
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import Language.GraphQL.AST
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import Language.GraphQL.AST.Encoder
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import Test.Hspec (Spec, context, describe, it, shouldBe, shouldStartWith, shouldEndWith, shouldNotContain)
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import Test.QuickCheck (choose, oneof, forAll)
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import Text.RawString.QQ (r)
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import Data.Text.Lazy (cons, toStrict, unpack)
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spec :: Spec
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spec = do
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describe "value" $ do
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context "null value" $ do
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let testNull formatter = value formatter Null `shouldBe` "null"
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it "minified" $ testNull minified
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it "pretty" $ testNull pretty
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context "minified" $ do
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it "escapes \\" $
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value minified (String "\\") `shouldBe` "\"\\\\\""
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it "escapes double quotes" $
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value minified (String "\"") `shouldBe` "\"\\\"\""
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it "escapes \\f" $
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value minified (String "\f") `shouldBe` "\"\\f\""
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it "escapes \\n" $
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value minified (String "\n") `shouldBe` "\"\\n\""
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it "escapes \\r" $
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value minified (String "\r") `shouldBe` "\"\\r\""
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it "escapes \\t" $
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value minified (String "\t") `shouldBe` "\"\\t\""
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it "escapes backspace" $
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value minified (String "a\bc") `shouldBe` "\"a\\bc\""
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context "escapes Unicode for chars less than 0010" $ do
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it "Null" $ value minified (String "\x0000") `shouldBe` "\"\\u0000\""
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it "bell" $ value minified (String "\x0007") `shouldBe` "\"\\u0007\""
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context "escapes Unicode for char less than 0020" $ do
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it "DLE" $ value minified (String "\x0010") `shouldBe` "\"\\u0010\""
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it "EM" $ value minified (String "\x0019") `shouldBe` "\"\\u0019\""
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context "encodes without escape" $ do
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it "space" $ value minified (String "\x0020") `shouldBe` "\" \""
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it "~" $ value minified (String "\x007E") `shouldBe` "\"~\""
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context "pretty" $ do
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it "uses strings for short string values" $
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value pretty (String "Short text") `shouldBe` "\"Short text\""
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it "uses block strings for text with new lines, with newline symbol" $
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value pretty (String "Line 1\nLine 2")
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`shouldBe` [r|"""
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Line 1
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Line 2
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"""|]
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it "uses block strings for text with new lines, with CR symbol" $
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value pretty (String "Line 1\rLine 2")
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`shouldBe` [r|"""
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Line 1
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Line 2
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"""|]
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it "uses block strings for text with new lines, with CR symbol followed by newline" $
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value pretty (String "Line 1\r\nLine 2")
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`shouldBe` [r|"""
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Line 1
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Line 2
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"""|]
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it "encodes as one line string if has escaped symbols" $ do
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let
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genNotAllowedSymbol = oneof
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[ choose ('\x0000', '\x0008')
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, choose ('\x000B', '\x000C')
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, choose ('\x000E', '\x001F')
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, pure '\x007F'
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]
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forAll genNotAllowedSymbol $ \x -> do
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let
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rawValue = "Short \n" <> cons x "text"
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encoded = value pretty (String $ toStrict rawValue)
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shouldStartWith (unpack encoded) "\""
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shouldEndWith (unpack encoded) "\""
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shouldNotContain (unpack encoded) "\"\"\""
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it "Hello world" $ value pretty (String "Hello,\n World!\n\nYours,\n GraphQL.")
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`shouldBe` [r|"""
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Hello,
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World!
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Yours,
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GraphQL.
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"""|]
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it "has only newlines" $ value pretty (String "\n") `shouldBe` [r|"""
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"""|]
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it "has newlines and one symbol at the begining" $
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value pretty (String "a\n\n") `shouldBe` [r|"""
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a
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"""|]
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it "has newlines and one symbol at the end" $
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value pretty (String "\n\na") `shouldBe` [r|"""
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a
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"""|]
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it "has newlines and one symbol in the middle" $
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value pretty (String "\na\n") `shouldBe` [r|"""
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a
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"""|]
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it "skip trailing whitespaces" $ value pretty (String " Short\ntext ")
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`shouldBe` [r|"""
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Short
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text
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"""|]
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describe "definition" $
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it "indents block strings in arguments" $
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let arguments = [Argument "message" (String "line1\nline2")]
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field = Field Nothing "field" arguments [] []
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operation = DefinitionOperation $ SelectionSet $ pure field
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in definition pretty operation `shouldBe` [r|{
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field(message: """
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line1
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line2
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""")
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}
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|]
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