mirror of
https://github.com/hasura/graphql-engine.git
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0869e89faa
This removes the one remaining instance of `unsafeMkName` in production code, uses `G.name` where possible in tests, and ignores instances where it's not possible (such as `instance Arbitrary G.Name`). PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5074 GitOrigin-RevId: d8049edf1f1bc2ef25f34874ef5bd5a5934bd33d
392 lines
13 KiB
Haskell
392 lines
13 KiB
Haskell
{-# OPTIONS_GHC -fno-warn-orphans #-}
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module Hasura.QuickCheck.Instances () where
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-------------------------------------------------------------------------------
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import Data.Aeson.Types qualified as Aeson.Types
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import Data.HashMap.Strict.Extended qualified as HashMap
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import Data.HashMap.Strict.InsOrd qualified as InsOrd.HashMap
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import Data.HashMap.Strict.Multi qualified as MMap
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import Data.HashSet qualified as HashSet
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import Data.Ratio ((%))
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import Data.Set qualified as Set
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import Data.Text qualified as T
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import Data.Trie qualified as Trie
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import Hasura.Base.Error (QErr (..), QErrExtra (..))
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import Hasura.Base.Error qualified as Error
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import Hasura.GraphQL.Namespace (NamespacedField (..), namespacedField)
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import Hasura.Prelude
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import Hasura.RQL.Types.Common
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import Hasura.RQL.Types.Endpoint.Trie
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import Hasura.RQL.Types.Metadata.Object
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( MetadataObjId (..),
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MetadataObject (..),
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)
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import Hasura.RQL.Types.RemoteSchema
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( RemoteSchemaInputValueDefinition (..),
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RemoteSchemaIntrospection (..),
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RemoteSchemaName (..),
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getTypeName,
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)
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import Hasura.RQL.Types.SchemaCache
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import Hasura.RQL.Types.Table
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import Hasura.Server.Utils qualified as Utils
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import Hasura.Session (SessionVariable, mkSessionVariable)
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import Language.GraphQL.Draft.Syntax qualified as GraphQL
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import Network.HTTP.Types qualified as HTTP.Types
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import Test.QuickCheck.Extended
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-------------------------------------------------------------------------------
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-- Orphan instances for third-party libraries types
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instance Arbitrary Text where
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arbitrary = T.pack <$> listOf arbitraryUnicodeChar
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instance
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(Arbitrary k, Eq k, Hashable k, Arbitrary v) =>
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Arbitrary (HashMap k v)
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where
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arbitrary = HashMap.fromList <$> arbitrary
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shrink = fmap HashMap.fromList . shrink . HashMap.toList
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instance
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(Arbitrary k, Eq k, Hashable k, Arbitrary v) =>
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Arbitrary (InsOrdHashMap k v)
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where
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arbitrary = InsOrd.HashMap.fromList <$> arbitrary
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shrink = fmap InsOrd.HashMap.fromList . shrink . InsOrd.HashMap.toList
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instance Arbitrary Aeson.Types.JSONPathElement where
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arbitrary = Aeson.Types.Index <$> arbitrary
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instance Arbitrary HTTP.Types.Status where
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arbitrary = HTTP.Types.Status <$> arbitrary <*> pure mempty
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-------------------------------------------------------------------------------
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-- Orphan instances for types defined by us, but which are not coupled to
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-- GraphQL Engine.
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instance (Eq k, Hashable k, Arbitrary k, Eq v, Arbitrary v) => Arbitrary (Trie.Trie k v) where
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arbitrary = Trie.Trie <$> scale (`div` 2) arbitrary <*> arbitrary
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shrink (Trie.Trie m v) =
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[Trie.Trie m v' | v' <- shrink v]
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++ [Trie.Trie m' v | m' <- shrink m]
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instance (Eq k, Hashable k, Arbitrary k, Ord v, Arbitrary v) => Arbitrary (MMap.MultiMap k v) where
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arbitrary = MMap.fromMap . fmap (Set.fromList . take 5) <$> arbitrary
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shrink m = map MMap.fromMap $ shrink $ MMap.toMap m
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-------------------------------------------------------------------------------
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-- Orphan instances for Language.GraphQL.Draft.Syntax types
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--
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-- TODO: We control `graphql-parser-hs`; we should upstream these orphan
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-- instances as either a separate package (e.g. `graphql-parser-hs-quickcheck`)
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-- or via flag (disabled by default) which enables QuickCheck as a dependency
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-- and supplies (non-orphan) instances that way.
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{-# ANN arbitraryGraphQLName ("HLint: ignore Use mkName" :: String) #-}
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-- Factored out so that we can annotate it.
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arbitraryGraphQLName :: Gen GraphQL.Name
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arbitraryGraphQLName = GraphQL.unsafeMkName . T.pack <$> listOf1 (elements ['a' .. 'z'])
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instance Arbitrary GraphQL.Name where
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arbitrary = arbitraryGraphQLName
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instance Arbitrary GraphQL.Description where
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arbitrary = GraphQL.Description <$> arbitrary
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instance Arbitrary GraphQL.EnumValue where
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arbitrary = GraphQL.EnumValue <$> arbitrary
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instance Arbitrary GraphQL.EnumValueDefinition where
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arbitrary =
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GraphQL.EnumValueDefinition
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<$> arbitrary
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<*> arbitrary
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<*> pure []
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instance Arbitrary GraphQL.Nullability where
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arbitrary = GraphQL.Nullability <$> arbitrary
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instance Arbitrary (GraphQL.Value Void) where
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arbitrary =
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oneof
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[ pure GraphQL.VNull,
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GraphQL.VInt <$> arbitrary,
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GraphQL.VFloat <$> arbitraryScientific,
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GraphQL.VString <$> arbitrary,
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GraphQL.VBoolean <$> arbitrary,
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GraphQL.VEnum <$> arbitrary,
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-- reduce the internal size factor at every level, so that this
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-- recursion is guaranteed to terminate
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GraphQL.VList <$> scale (`div` 2) arbitrary,
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GraphQL.VObject <$> scale (`div` 2) arbitrary
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]
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where
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arbitraryScientific = do
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-- fromRational can create invalid repeating values that loop forever
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-- we avoid this by creating known good ratios
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num :: Integer <- arbitrary
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dem :: Integer <- elements [1 .. 32]
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pure $ fromRational $ num % (10 ^ dem)
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-- Generators for Language.GraphQL.Draft.Syntax types
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genGType :: [GraphQL.Name] -> Gen GraphQL.GType
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genGType typeNames =
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frequency
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-- bias towards avoiding deeply nested lists
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[ (7, GraphQL.TypeNamed <$> arbitrary <*> elements typeNames),
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(3, GraphQL.TypeList <$> arbitrary <*> genGType typeNames)
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]
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genInputValueDefinition :: [GraphQL.Name] -> Gen GraphQL.InputValueDefinition
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genInputValueDefinition inputTypeNames =
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GraphQL.InputValueDefinition
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<$> arbitrary
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<*> arbitrary
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<*> genGType inputTypeNames
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<*> arbitrary
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<*> pure []
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genScalarTypeDefinition :: GraphQL.Name -> Gen GraphQL.ScalarTypeDefinition
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genScalarTypeDefinition name =
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GraphQL.ScalarTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> pure []
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genEnumTypeDefinition :: GraphQL.Name -> Gen GraphQL.EnumTypeDefinition
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genEnumTypeDefinition name =
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GraphQL.EnumTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> pure []
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<*> listOf1 arbitrary
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genUnionTypeDefinition ::
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[GraphQL.Name] -> GraphQL.Name -> Gen GraphQL.UnionTypeDefinition
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genUnionTypeDefinition objectTypeNames name =
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GraphQL.UnionTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> pure []
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<*> sublistOf1 objectTypeNames
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genFieldDefinition ::
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Gen [inputType] ->
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[GraphQL.Name] ->
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GraphQL.Name ->
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Gen (GraphQL.FieldDefinition inputType)
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genFieldDefinition inputTypes outputTypeNames name =
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GraphQL.FieldDefinition
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<$> arbitrary
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<*> pure name
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<*> inputTypes
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<*> genGType outputTypeNames
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<*> pure []
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genObjectTypeDefinition ::
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Gen [inputType] ->
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[GraphQL.Name] ->
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[GraphQL.Name] ->
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GraphQL.Name ->
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Gen (GraphQL.ObjectTypeDefinition inputType)
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genObjectTypeDefinition inputTypes outputTypeNames interfaceTypeNames name =
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GraphQL.ObjectTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> sublistOf interfaceTypeNames
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<*> pure []
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<*> fields
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where
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fields = distinct1 >>= traverse (genFieldDefinition inputTypes outputTypeNames)
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genInterfaceTypeDefinition ::
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Arbitrary possibleType =>
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Gen [inputType] ->
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[GraphQL.Name] ->
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GraphQL.Name ->
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Gen (GraphQL.InterfaceTypeDefinition [possibleType] inputType)
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genInterfaceTypeDefinition inputTypes outputTypeNames name =
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GraphQL.InterfaceTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> pure []
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<*> fields
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<*> listOf1 arbitrary
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where
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fields = distinct1 >>= traverse (genFieldDefinition inputTypes outputTypeNames)
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genInputObjectTypeDefinition ::
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Gen [inputType] ->
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GraphQL.Name ->
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Gen (GraphQL.InputObjectTypeDefinition inputType)
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genInputObjectTypeDefinition values name =
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GraphQL.InputObjectTypeDefinition
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<$> arbitrary
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<*> pure name
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<*> pure []
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<*> values
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-------------------------------------------------------------------------------
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-- Instances for GraphQL Engine types
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instance Arbitrary a => Arbitrary (PathComponent a) where
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arbitrary =
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oneof
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[ PathLiteral <$> arbitrary,
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pure PathParam
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]
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instance Arbitrary SessionVariable where
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arbitrary = do
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name <- arbitrary
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pure $ mkSessionVariable $ Utils.sessionVariablePrefix <> name
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instance Arbitrary IntrospectionResult where
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arbitrary = do
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-- first, generate distinct names for each kind of object
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scalarTypeNames <- distinct
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objectTypeNames <- distinctExcluding1 scalarTypeNames
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interfaceTypeNames <- distinctExcluding $ scalarTypeNames ++ objectTypeNames
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unionTypeNames <- distinctExcluding $ scalarTypeNames ++ objectTypeNames ++ interfaceTypeNames
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enumTypeNames <- distinctExcluding $ scalarTypeNames ++ objectTypeNames ++ interfaceTypeNames ++ unionTypeNames
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let outputTypeNames = scalarTypeNames ++ objectTypeNames ++ interfaceTypeNames ++ unionTypeNames ++ enumTypeNames
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inputObjectTypeNames <- distinctExcluding outputTypeNames
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let inputTypeNames = scalarTypeNames ++ enumTypeNames ++ inputObjectTypeNames
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let inputValues = case inputTypeNames of
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[] -> pure []
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_ -> listOf $ genRemoteSchemaInputValueDefinition inputTypeNames
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-- then, create a matching definition for each name
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scalarTypeDefinitions <-
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for scalarTypeNames genScalarTypeDefinition
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objectTypeDefinitions <-
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for objectTypeNames $
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genObjectTypeDefinition inputValues outputTypeNames interfaceTypeNames
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interfaceTypeDefinitions <-
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for interfaceTypeNames $
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genInterfaceTypeDefinition inputValues outputTypeNames
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unionTypeDefinitions <-
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for unionTypeNames $
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genUnionTypeDefinition objectTypeNames
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enumTypeDefinitions <-
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for enumTypeNames genEnumTypeDefinition
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inputObjectTypeDefinitions <-
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for inputObjectTypeNames $
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genInputObjectTypeDefinition inputValues
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-- finally, create an IntrospectionResult from the aggregated definitions
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let irDoc =
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RemoteSchemaIntrospection $
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HashMap.fromListOn getTypeName $
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concat
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[ GraphQL.TypeDefinitionScalar <$> scalarTypeDefinitions,
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GraphQL.TypeDefinitionObject <$> objectTypeDefinitions,
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GraphQL.TypeDefinitionInterface <$> interfaceTypeDefinitions,
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GraphQL.TypeDefinitionUnion <$> unionTypeDefinitions,
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GraphQL.TypeDefinitionEnum <$> enumTypeDefinitions,
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GraphQL.TypeDefinitionInputObject <$> inputObjectTypeDefinitions
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]
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irQueryRoot <- elements objectTypeNames
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let maybeObjectTypeName = elements $ Nothing : (Just <$> objectTypeNames)
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irMutationRoot <- maybeObjectTypeName
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irSubscriptionRoot <- maybeObjectTypeName
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pure $ IntrospectionResult {..}
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instance Arbitrary a => Arbitrary (NamespacedField a) where
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arbitrary = oneof [NotNamespaced <$> arbitrary, Namespaced <$> arbitrary]
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shrink = namespacedField (fmap NotNamespaced . shrink) (fmap Namespaced . shrink)
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instance Arbitrary QErrExtra where
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arbitrary =
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oneof
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[ ExtraExtensions <$> arbitrary,
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ExtraInternal <$> arbitrary
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]
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instance Arbitrary MetadataObjId where
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arbitrary =
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oneof
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-- This is not exhaustive, because it wasn't needed.
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[ pure $ MOSource SNDefault,
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MORemoteSchema . RemoteSchemaName <$> arbitrary
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]
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instance Arbitrary MetadataObject where
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arbitrary = MetadataObject <$> arbitrary <*> arbitrary
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instance Arbitrary QErr where
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arbitrary = do
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-- This is not exhaustive, because it wasn't needed.
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--
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-- I just picked a few random error codes.
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let genCode =
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elements
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[ Error.AlreadyExists,
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Error.Conflict,
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Error.ConstraintError,
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Error.ConstraintViolation,
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Error.NotFound,
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Error.Unexpected
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]
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QErr
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<$> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> genCode
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<*> arbitrary
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instance Arbitrary Comment where
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arbitrary =
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oneof
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[ pure Automatic,
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Explicit <$> arbitrary
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]
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shrink Automatic = []
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shrink (Explicit t) = Explicit <$> shrink t
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instance Arbitrary CustomRootField where
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arbitrary = CustomRootField <$> arbitrary <*> arbitrary
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instance Arbitrary TableCustomRootFields where
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arbitrary =
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( TableCustomRootFields
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<$> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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<*> arbitrary
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)
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`suchThat` allFieldNamesAreUnique
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where
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allFieldNamesAreUnique :: TableCustomRootFields -> Bool
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allFieldNamesAreUnique tcrf =
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let allNames = mapMaybe _crfName $ getAllCustomRootFields tcrf
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uniqueNames = HashSet.fromList allNames
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in length allNames == length uniqueNames
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instance Arbitrary ColumnConfig where
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arbitrary =
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ColumnConfig
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<$> arbitrary
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<*> arbitrary
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-- Generators for GraphQL Engine types
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genRemoteSchemaInputValueDefinition ::
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[GraphQL.Name] -> Gen RemoteSchemaInputValueDefinition
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genRemoteSchemaInputValueDefinition inputTypeNames =
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RemoteSchemaInputValueDefinition
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<$> genInputValueDefinition inputTypeNames
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<*> pure Nothing
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