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|
{-# LANGUAGE OverloadedStrings #-}
module Language.GraphQL.AST.ParserSpec
( spec
) where
import Data.List.NonEmpty (NonEmpty(..))
import qualified Data.Text as Text
import Language.GraphQL.AST.Document
import qualified Language.GraphQL.AST.DirectiveLocation as DirLoc
import Language.GraphQL.AST.Parser
import Test.Hspec (Spec, describe, it, context)
import Test.Hspec.Megaparsec
( shouldParse
, shouldFailOn
, parseSatisfies
, shouldSucceedOn
)
import Text.Megaparsec (parse)
import Test.QuickCheck (property, NonEmptyList (..), mapSize)
import Language.GraphQL.AST.Arbitrary
spec :: Spec
spec = describe "Parser" $ do
it "accepts BOM header" $
parse document "" `shouldSucceedOn` "\xfeff{foo}"
context "Arguments" $ do
it "accepts block strings as argument" $
parse document "" `shouldSucceedOn`
"{ hello(text: \"\"\"Argument\"\"\") }"
it "accepts strings as argument" $
parse document "" `shouldSucceedOn` "{ hello(text: \"Argument\") }"
it "accepts int as argument" $
parse document "" `shouldSucceedOn` "{ user(id: 4) }"
it "accepts boolean as argument" $
parse document "" `shouldSucceedOn`
"{ hello(flag: true) { field1 } }"
it "accepts float as argument" $
parse document "" `shouldSucceedOn`
"{ body(height: 172.5) { height } }"
it "accepts empty list as argument" $
parse document "" `shouldSucceedOn` "{ query(list: []) { field1 } }"
it "accepts two required arguments" $
parse document "" `shouldSucceedOn`
"mutation auth($username: String!, $password: String!) { test }"
it "accepts two string arguments" $
parse document "" `shouldSucceedOn`
"mutation auth { test(username: \"username\", password: \"password\") }"
it "accepts two block string arguments" $
let given = "mutation auth {\n\
\ test(username: \"\"\"username\"\"\", password: \"\"\"password\"\"\")\n\
\}"
in parse document "" `shouldSucceedOn` given
it "fails to parse an empty argument list in parens" $
parse document "" `shouldFailOn` "{ test() }"
it "accepts any arguments" $ mapSize (const 10) $ property $ \xs ->
let arguments' = map printArgument
$ getNonEmpty (xs :: NonEmptyList (AnyArgument AnyValue))
query' = "query(" <> Text.intercalate ", " arguments' <> ")"
in parse document "" `shouldSucceedOn` ("{ " <> query' <> " }")
it "parses minimal schema definition" $
parse document "" `shouldSucceedOn` "schema { query: Query }"
it "parses minimal scalar definition" $
parse document "" `shouldSucceedOn` "scalar Time"
it "parses ImplementsInterfaces" $
parse document "" `shouldSucceedOn`
"type Person implements NamedEntity & ValuedEntity {\n\
\ name: String\n\
\}"
it "parses a type without ImplementsInterfaces" $
parse document "" `shouldSucceedOn`
"type Person {\n\
\ name: String\n\
\}"
it "parses ArgumentsDefinition in an ObjectDefinition" $
parse document "" `shouldSucceedOn`
"type Person {\n\
\ name(first: String, last: String): String\n\
\}"
it "parses minimal union type definition" $
parse document "" `shouldSucceedOn`
"union SearchResult = Photo | Person"
it "parses minimal interface type definition" $
parse document "" `shouldSucceedOn`
"interface NamedEntity {\n\
\ name: String\n\
\}"
it "parses minimal enum type definition" $
parse document "" `shouldSucceedOn`
"enum Direction {\n\
\ NORTH\n\
\ EAST\n\
\ SOUTH\n\
\ WEST\n\
\}"
it "parses minimal input object type definition" $
parse document "" `shouldSucceedOn`
"input Point2D {\n\
\ x: Float\n\
\ y: Float\n\
\}"
it "parses minimal input enum definition with an optional pipe" $
parse document "" `shouldSucceedOn`
"directive @example on\n\
\ | FIELD\n\
\ | FRAGMENT_SPREAD"
it "parses two minimal directive definitions" $
let directive name' loc = TypeSystemDefinition
$ DirectiveDefinition
(Description Nothing)
name'
(ArgumentsDefinition [])
False
(loc :| [])
example1 = directive "example1"
(DirLoc.TypeSystemDirectiveLocation DirLoc.FieldDefinition)
(Location {line = 1, column = 1})
example2 = directive "example2"
(DirLoc.ExecutableDirectiveLocation DirLoc.Field)
(Location {line = 2, column = 1})
testSchemaExtension = example1 :| [example2]
query = Text.unlines
[ "directive @example1 on FIELD_DEFINITION"
, "directive @example2 on FIELD"
]
in parse document "" query `shouldParse` testSchemaExtension
it "parses a directive definition with a default empty list argument" $
let argumentValue = Just
$ Node (ConstList [])
$ Location{ line = 1, column = 33 }
loc = DirLoc.TypeSystemDirectiveLocation DirLoc.FieldDefinition
argumentValueDefinition = InputValueDefinition
(Description Nothing)
"foo"
(TypeList (TypeNamed "String"))
argumentValue
[]
definition = DirectiveDefinition
(Description Nothing)
"test"
(ArgumentsDefinition [argumentValueDefinition])
False
(loc :| [])
directive = TypeSystemDefinition definition
$ Location{ line = 1, column = 1 }
query = "directive @test(foo: [String] = []) on FIELD_DEFINITION"
in parse document "" query `shouldParse` (directive :| [])
it "parses schema extension with a new directive" $
parse document "" `shouldSucceedOn` "extend schema @newDirective"
it "parses schema extension with an operation type definition" $
parse document "" `shouldSucceedOn` "extend schema { query: Query }"
it "parses schema extension with an operation type and directive" $
let newDirective = Directive "newDirective" [] $ Location 1 15
schemaExtension = SchemaExtension
$ SchemaOperationExtension [newDirective]
$ OperationTypeDefinition Query "Query" :| []
testSchemaExtension = TypeSystemExtension schemaExtension
$ Location 1 1
query = "extend schema @newDirective { query: Query }"
in parse document "" query `shouldParse` (testSchemaExtension :| [])
it "parses a repeatable directive definition" $
let given = "directive @test repeatable on FIELD_DEFINITION"
isRepeatable (TypeSystemDefinition definition' _ :| [])
| DirectiveDefinition _ _ _ repeatable _ <- definition' = repeatable
isRepeatable _ = False
in parse document "" given `parseSatisfies` isRepeatable
it "parses an object extension" $
parse document "" `shouldSucceedOn`
"extend type Story { isHiddenLocally: Boolean }"
it "rejects variables in DefaultValue" $
parse document "" `shouldFailOn`
"query ($book: String = \"Zarathustra\", $author: String = $book) {\n\
\ title\n\
\}"
it "rejects empty selection set" $
parse document "" `shouldFailOn` "query { innerField {} }"
it "parses documents beginning with a comment" $
parse document "" `shouldSucceedOn`
"\"\"\"\n\
\Query\n\
\\"\"\"\n\
\type Query {\n\
\ queryField: String\n\
\}"
it "parses subscriptions" $
parse document "" `shouldSucceedOn`
"subscription NewMessages {\n\
\ newMessage(roomId: 123) {\n\
\ sender\n\
\ }\n\
\}"
|
