136 lines
4.8 KiB
Haskell
136 lines
4.8 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
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$ SelectionSet (pure field)
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$ Location 0 0
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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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