graphql-engine/server/src-test/Hasura/GraphQL/Schema/RemoteTest.hs
Antoine Leblanc 664633fc4b Remove the source cache from the schema context
### Description

This PR removes the source cache from the schema context. :)

PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4830
GitOrigin-RevId: af312a22b70d042c5faf8d67c0cee254537be836
2022-06-23 11:43:17 +00:00

426 lines
12 KiB
Haskell

{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE ViewPatterns #-}
module Hasura.GraphQL.Schema.RemoteTest (spec) where
import Control.Lens (Prism', prism', to, (^..), _Right)
import Data.Aeson qualified as J
import Data.Aeson.Key qualified as K
import Data.Aeson.KeyMap qualified as KM
import Data.ByteString.Lazy qualified as LBS
import Data.HashMap.Strict.Extended qualified as M
import Data.Text qualified as T
import Data.Text.Extended
import Data.Text.RawString
import Hasura.Base.Error
import Hasura.GraphQL.Execute.Inline
import Hasura.GraphQL.Execute.Remote (resolveRemoteVariable, runVariableCache)
import Hasura.GraphQL.Execute.Resolve
import Hasura.GraphQL.Namespace
import Hasura.GraphQL.Parser.Internal.Parser qualified as P
import Hasura.GraphQL.Parser.Monad (runSchemaT)
import Hasura.GraphQL.Parser.Name qualified as GName
import Hasura.GraphQL.Parser.Schema
import Hasura.GraphQL.Parser.TestUtils
import Hasura.GraphQL.Schema.Common
import Hasura.GraphQL.Schema.Remote
import Hasura.Name qualified as Name
import Hasura.Prelude
import Hasura.RQL.IR.RemoteSchema
import Hasura.RQL.IR.Root
import Hasura.RQL.IR.Value
import Hasura.RQL.Types.Common
import Hasura.RQL.Types.RemoteSchema
import Hasura.RQL.Types.SchemaCache
import Hasura.RQL.Types.SourceCustomization
import Hasura.Session
import Language.GraphQL.Draft.Parser qualified as G
import Language.GraphQL.Draft.Syntax qualified as G
import Language.GraphQL.Draft.Syntax.QQ qualified as G
import Network.URI qualified as N
import Test.Hspec
-- test tools
runError :: Monad m => ExceptT QErr m a -> m a
runError = runExceptT >=> (`onLeft` (error . T.unpack . qeError))
mkTestRemoteSchema :: Text -> RemoteSchemaIntrospection
mkTestRemoteSchema schema = RemoteSchemaIntrospection $
M.fromListOn getTypeName $
runIdentity $
runError $ do
G.SchemaDocument types <- G.parseSchemaDocument schema `onLeft` throw500
pure $ flip mapMaybe types \case
G.TypeSystemDefinitionSchema _ -> Nothing
G.TypeSystemDefinitionType td -> Just $ case fmap toRemoteInputValue td of
G.TypeDefinitionScalar std -> G.TypeDefinitionScalar std
G.TypeDefinitionObject otd -> G.TypeDefinitionObject otd
G.TypeDefinitionUnion utd -> G.TypeDefinitionUnion utd
G.TypeDefinitionEnum etd -> G.TypeDefinitionEnum etd
G.TypeDefinitionInputObject itd -> G.TypeDefinitionInputObject itd
G.TypeDefinitionInterface itd ->
G.TypeDefinitionInterface $
G.InterfaceTypeDefinition
{ G._itdDescription = G._itdDescription itd,
G._itdName = G._itdName itd,
G._itdDirectives = G._itdDirectives itd,
G._itdFieldsDefinition = G._itdFieldsDefinition itd,
G._itdPossibleTypes = []
}
where
toRemoteInputValue ivd =
RemoteSchemaInputValueDefinition
{ _rsitdDefinition = ivd,
_rsitdPresetArgument =
choice $
G._ivdDirectives ivd <&> \dir -> do
guard $ G._dName dir == Name._preset
value <- M.lookup Name._value $ G._dArguments dir
Just $ case value of
G.VString "x-hasura-test" ->
G.VVariable $
SessionPresetVariable (mkSessionVariable "x-hasura-test") GName._String SessionArgumentPresetScalar
_ -> absurd <$> value
}
mkTestExecutableDocument :: Text -> ([G.VariableDefinition], G.SelectionSet G.NoFragments G.Name)
mkTestExecutableDocument t = runIdentity $
runError $ do
G.ExecutableDocument execDoc <- G.parseExecutableDoc t `onLeft` throw500
case execDoc of
[G.ExecutableDefinitionOperation op] -> case op of
G.OperationDefinitionUnTyped selSet -> ([],) <$> inlineSelectionSet [] selSet
G.OperationDefinitionTyped opDef -> do
unless (G._todType opDef == G.OperationTypeQuery) $
throw500 "only queries for now"
resSelSet <- inlineSelectionSet [] $ G._todSelectionSet opDef
pure (G._todVariableDefinitions opDef, resSelSet)
_ -> throw500 "must have only one query in the document"
mkTestVariableValues :: LBS.ByteString -> M.HashMap G.Name J.Value
mkTestVariableValues vars = runIdentity $
runError $ do
value <- J.eitherDecode vars `onLeft` (throw500 . T.pack)
case value of
J.Object vs ->
M.fromList <$> for (KM.toList vs) \(K.toText -> name, val) -> do
gname <- G.mkName name `onNothing` throw500 ("wrong Name: " <>> name)
pure (gname, val)
_ -> throw500 "variables must be an object"
buildQueryParsers ::
RemoteSchemaIntrospection ->
IO (P.FieldParser TestMonad (GraphQLField (RemoteRelationshipField UnpreparedValue) RemoteSchemaVariable))
buildQueryParsers introspection = do
let introResult = IntrospectionResult introspection GName._Query Nothing Nothing
remoteSchemaInfo = RemoteSchemaInfo (ValidatedRemoteSchemaDef (EnvRecord "" N.nullURI) [] False 60 Nothing) identityCustomizer
remoteSchemaRels = mempty
-- Since remote schemas can theoretically join against tables, we need to
-- have access to all relevant sources-specific information to build their
-- schema. Here, since there are no relationships to a source in this
-- test, we are free to give 'undefined' for such fields, as they won't be
-- evaluated.
schemaInfo =
( adminRoleName :: RoleName,
mempty :: CustomizeRemoteFieldName,
mempty :: MkTypename,
mempty :: MkRootFieldName,
HasuraCase :: NamingCase,
undefined :: SchemaOptions,
SchemaContext
HasuraSchema
ignoreRemoteRelationship
)
RemoteSchemaParser query _ _ <-
runError $
flip runReaderT schemaInfo $
runSchemaT $
buildRemoteParser introResult remoteSchemaRels remoteSchemaInfo
pure $
head query <&> \case
NotNamespaced remoteFld -> _rfField remoteFld
Namespaced _ ->
-- Shouldn't happen if we're using identityCustomizer
-- TODO: add some tests for remote schema customization
error "buildQueryParsers: unexpected Namespaced field"
runQueryParser ::
P.FieldParser TestMonad any ->
([G.VariableDefinition], G.SelectionSet G.NoFragments G.Name) ->
M.HashMap G.Name J.Value ->
any
runQueryParser parser (varDefs, selSet) vars = runIdentity . runError $ do
(_, resolvedSelSet) <- resolveVariables varDefs vars [] selSet
field <- case resolvedSelSet of
[G.SelectionField f] -> pure f
_ -> error "expecting only one field in the query"
runTest (P.fParser parser field) `onLeft` throw500
run ::
-- | schema
Text ->
-- | query
Text ->
-- | variables
LBS.ByteString ->
IO (GraphQLField (RemoteRelationshipField UnpreparedValue) RemoteSchemaVariable)
run schema query variables = do
parser <- buildQueryParsers $ mkTestRemoteSchema schema
pure $
runQueryParser
parser
(mkTestExecutableDocument query)
(mkTestVariableValues variables)
-- actual test
spec :: Spec
spec = do
testNoVarExpansionIfNoPreset
testNoVarExpansionIfNoPresetUnlessTopLevelOptionalField
testPartialVarExpansionIfPreset
testVariableSubstitutionCollision
testNoVarExpansionIfNoPreset :: Spec
testNoVarExpansionIfNoPreset = it "variables aren't expanded if there's no preset" $ do
field <-
run
-- schema
[raw|
scalar Int
input A {
b: B
}
input B {
c: C
}
input C {
i: Int
}
type Query {
test(a: A!): Int
}
|]
-- query
[raw|
query($a: A!) {
test(a: $a)
}
|]
-- variables
[raw|
{
"a": {
"b": {
"c": {
"i": 0
}
}
}
}
|]
let arg = head $ M.toList $ _fArguments field
arg
`shouldBe` ( _a,
-- the parser did not create a new JSON variable, and forwarded the query variable unmodified
G.VVariable $
QueryVariable $
Variable
(VIRequired _a)
(G.TypeNamed (G.Nullability False) _A)
(JSONValue $ J.Object $ KM.fromList [("b", J.Object $ KM.fromList [("c", J.Object $ KM.fromList [("i", J.Number 0)])])])
)
testNoVarExpansionIfNoPresetUnlessTopLevelOptionalField :: Spec
testNoVarExpansionIfNoPresetUnlessTopLevelOptionalField = it "unless fieldOptional peels the variable first" $ do
field <-
run
-- schema
[raw|
scalar Int
input A {
b: B
}
input B {
c: C
}
input C {
i: Int
}
type Query {
test(a: A): Int
}
|]
-- query
[raw|
query($a: A) {
test(a: $a)
}
|]
-- variables
[raw|
{
"a": {
"b": {
"c": {
"i": 0
}
}
}
}
|]
let arg = head $ M.toList $ _fArguments field
arg
`shouldBe` ( _a,
-- fieldOptional has peeled the variable; all we see is a JSON blob, and in doubt
-- we repackage it as a newly minted JSON variable
G.VVariable $
RemoteJSONValue
(G.TypeNamed (G.Nullability True) _A)
(J.Object $ KM.fromList [("b", J.Object $ KM.fromList [("c", J.Object $ KM.fromList [("i", J.Number 0)])])])
)
testPartialVarExpansionIfPreset :: Spec
testPartialVarExpansionIfPreset = it "presets cause partial var expansion" $ do
field <-
run
-- schema
[raw|
scalar Int
input A {
x: Int @preset(value: 0)
b: B
}
input B {
c: C
}
input C {
i: Int
}
type Query {
test(a: A!): Int
}
|]
-- query
[raw|
query($a: A!) {
test(a: $a)
}
|]
-- variables
[raw|
{
"a": {
"b": {
"c": {
"i": 0
}
}
}
}
|]
let arg = head $ M.toList $ _fArguments field
arg
`shouldBe` ( _a,
-- the preset has caused partial variable expansion, only up to where it's needed
G.VObject $
M.fromList
[ ( _x,
G.VInt 0
),
( _b,
G.VVariable $
RemoteJSONValue
(G.TypeNamed (G.Nullability True) _B)
(J.Object $ KM.fromList [("c", J.Object $ KM.fromList [("i", J.Number 0)])])
)
]
)
-- | Regression test for https://github.com/hasura/graphql-engine/issues/7170
testVariableSubstitutionCollision :: Spec
testVariableSubstitutionCollision = it "ensures that remote variables are de-duplicated by type and value, not just by value" $ do
field <- run schema query variables
let dummyUserInfo =
UserInfo
adminRoleName
(mempty @SessionVariables)
BOFADisallowed
eField <-
runExceptT
. runVariableCache
. traverse (resolveRemoteVariable dummyUserInfo)
$ field
let variableNames =
eField ^.. _Right . to _fArguments . traverse . _VVariable . to vInfo . to getName . to G.unName
variableNames `shouldBe` ["hasura_json_var_1", "hasura_json_var_2"]
where
-- A schema whose values are representable as collections of JSON values.
schema :: Text
schema =
[raw|
scalar Int
scalar String
type Query {
test(a: [Int], b: [String]): Int
}
|]
-- A query against values from 'schema' using JSON variable substitution.
query :: Text
query =
[raw|
query($a: [Int], $b: [String]) {
test(a: $a, b: $b)
}
|]
-- Two identical JSON variables to substitute; 'schema' and 'query' declare
-- that these variables should have different types despite both being
-- empty collections.
variables :: LBS.ByteString
variables =
[raw|
{
"a": [],
"b": []
}
|]
-- | Convenience function to focus on a 'G.VVariable' when pulling test values
-- out in 'testVariableSubstitutionCollision'.
_VVariable :: Prism' (G.Value var) var
_VVariable = prism' upcast downcast
where
upcast = G.VVariable
downcast = \case
G.VVariable var -> Just var
_ -> Nothing
_A :: G.Name
_A = [G.name|A|]
_B :: G.Name
_B = [G.name|B|]
_a :: G.Name
_a = [G.name|a|]
_b :: G.Name
_b = [G.name|b|]
_x :: G.Name
_x = [G.name|x|]