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|
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
module Language.GraphQL.AST.EncoderSpec
( spec
) where
import qualified Language.GraphQL.AST.Document as Full
import Language.GraphQL.AST.Encoder
import Language.GraphQL.TH
import Test.Hspec (Spec, context, describe, it, shouldBe, shouldStartWith, shouldEndWith, shouldNotContain)
import Test.QuickCheck (choose, oneof, forAll)
import qualified Data.Text.Lazy as Text.Lazy
spec :: Spec
spec = do
describe "value" $ do
context "null value" $ do
let testNull formatter = value formatter Full.Null `shouldBe` "null"
it "minified" $ testNull minified
it "pretty" $ testNull pretty
context "minified" $ do
it "escapes \\" $
value minified (Full.String "\\") `shouldBe` "\"\\\\\""
it "escapes double quotes" $
value minified (Full.String "\"") `shouldBe` "\"\\\"\""
it "escapes \\f" $
value minified (Full.String "\f") `shouldBe` "\"\\f\""
it "escapes \\n" $
value minified (Full.String "\n") `shouldBe` "\"\\n\""
it "escapes \\r" $
value minified (Full.String "\r") `shouldBe` "\"\\r\""
it "escapes \\t" $
value minified (Full.String "\t") `shouldBe` "\"\\t\""
it "escapes backspace" $
value minified (Full.String "a\bc") `shouldBe` "\"a\\bc\""
context "escapes Unicode for chars less than 0010" $ do
it "Null" $ value minified (Full.String "\x0000") `shouldBe` "\"\\u0000\""
it "bell" $ value minified (Full.String "\x0007") `shouldBe` "\"\\u0007\""
context "escapes Unicode for char less than 0020" $ do
it "DLE" $ value minified (Full.String "\x0010") `shouldBe` "\"\\u0010\""
it "EM" $ value minified (Full.String "\x0019") `shouldBe` "\"\\u0019\""
context "encodes without escape" $ do
it "space" $ value minified (Full.String "\x0020") `shouldBe` "\" \""
it "~" $ value minified (Full.String "\x007E") `shouldBe` "\"~\""
context "pretty" $ do
it "uses strings for short string values" $
value pretty (Full.String "Short text") `shouldBe` "\"Short text\""
it "uses block strings for text with new lines, with newline symbol" $
let expected = [gql|
"""
Line 1
Line 2
"""
|]
actual = value pretty $ Full.String "Line 1\nLine 2"
in actual `shouldBe` expected
it "uses block strings for text with new lines, with CR symbol" $
let expected = [gql|
"""
Line 1
Line 2
"""
|]
actual = value pretty $ Full.String "Line 1\rLine 2"
in actual `shouldBe` expected
it "uses block strings for text with new lines, with CR symbol followed by newline" $
let expected = [gql|
"""
Line 1
Line 2
"""
|]
actual = value pretty $ Full.String "Line 1\r\nLine 2"
in actual `shouldBe` expected
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" <> Text.Lazy.cons x "text"
encoded = value pretty
$ Full.String $ Text.Lazy.toStrict rawValue
shouldStartWith (Text.Lazy.unpack encoded) "\""
shouldEndWith (Text.Lazy.unpack encoded) "\""
shouldNotContain (Text.Lazy.unpack encoded) "\"\"\""
it "Hello world" $
let actual = value pretty
$ Full.String "Hello,\n World!\n\nYours,\n GraphQL."
expected = [gql|
"""
Hello,
World!
Yours,
GraphQL.
"""
|]
in actual `shouldBe` expected
it "has only newlines" $
let actual = value pretty $ Full.String "\n"
expected = [gql|
"""
"""
|]
in actual `shouldBe` expected
it "has newlines and one symbol at the begining" $
let actual = value pretty $ Full.String "a\n\n"
expected = [gql|
"""
a
"""|]
in actual `shouldBe` expected
it "has newlines and one symbol at the end" $
let actual = value pretty $ Full.String "\n\na"
expected = [gql|
"""
a
"""
|]
in actual `shouldBe` expected
it "has newlines and one symbol in the middle" $
let actual = value pretty $ Full.String "\na\n"
expected = [gql|
"""
a
"""
|]
in actual `shouldBe` expected
it "skip trailing whitespaces" $
let actual = value pretty $ Full.String " Short\ntext "
expected = [gql|
"""
Short
text
"""
|]
in actual `shouldBe` expected
describe "definition" $
it "indents block strings in arguments" $
let location = Full.Location 0 0
argumentValue = Full.Node (Full.String "line1\nline2") location
arguments = [Full.Argument "message" argumentValue location]
field = Full.Field Nothing "field" arguments [] [] location
fieldSelection = pure $ Full.FieldSelection field
operation = Full.DefinitionOperation
$ Full.SelectionSet fieldSelection location
expected = Text.Lazy.snoc [gql|
{
field(message: """
line1
line2
""")
}
|] '\n'
actual = definition pretty operation
in actual `shouldBe` expected
|
