graphql/tests/Test/StarWars/QueryTests.hs

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{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
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module Test.StarWars.QueryTests (test) where
import qualified Data.Aeson as Aeson (Value(Null), toJSON)
import Data.Aeson (object, (.=))
import Data.Text (Text)
import Text.RawString.QQ (r)
import Test.Tasty (TestTree, testGroup)
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import Test.Tasty.HUnit (Assertion, testCase, (@?=))
import Data.GraphQL
import Data.GraphQL.Schema (Subs)
import Test.StarWars.Schema
-- * Test
-- See https://github.com/graphql/graphql-js/blob/master/src/__tests__/starWarsQueryTests.js
test :: TestTree
test = testGroup "Star Wars Query Tests"
[ testGroup "Basic Queries"
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[ testCase "R2-D2 hero" . testQuery
[r| query HeroNameQuery {
hero {
id
}
}
|]
$ object [ "data" .= object ["hero" .= object ["id" .= ("2001" :: Text)]]]
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, testCase "R2-D2 ID and friends" . testQuery
[r| query HeroNameAndFriendsQuery {
hero {
id
name
friends {
name
}
}
}
|]
$ object [ "data" .= object [
"hero" .= object [
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"id" .= ("2001" :: Text)
, r2d2Name
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, "friends" .= [
object [lukeName]
, object [hanName]
, object [leiaName]
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]
]
]]
]
, testGroup "Nested Queries"
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[ testCase "R2-D2 friends" . testQuery
[r| query NestedQuery {
hero {
name
friends {
name
appearsIn
friends {
name
}
}
}
}
|]
$ object [ "data" .= object [
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"hero" .= object [
"name" .= ("R2-D2" :: Text)
, "friends" .= [
object [
"name" .= ("Luke Skywalker" :: Text)
, "appearsIn" .= ["NEWHOPE","EMPIRE","JEDI" :: Text]
, "friends" .= [
object [hanName]
, object [leiaName]
, object [c3poName]
, object [r2d2Name]
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]
]
, object [
hanName
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, "appearsIn" .= [ "NEWHOPE","EMPIRE","JEDI" :: Text]
, "friends" .= [
object [lukeName]
, object [leiaName]
, object [r2d2Name]
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]
]
, object [
leiaName
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, "appearsIn" .= [ "NEWHOPE","EMPIRE","JEDI" :: Text]
, "friends" .= [
object [lukeName]
, object [hanName]
, object [c3poName]
, object [r2d2Name]
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]
]
]
]
]]
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, testCase "Luke ID" . testQuery
[r| query FetchLukeQuery {
human(id: "1000") {
name
}
}
|]
$ object [ "data" .= object [
"human" .= object [lukeName]
]
]]
, testCase "Luke ID with variable" . testQueryParams
(\v -> if v == "someId"
then Just "1000"
else Nothing)
[r| query FetchSomeIDQuery($someId: String!) {
human(id: $someId) {
name
}
}
|]
$ object [ "data" .= object [
"human" .= object [lukeName]
]]
, testCase "Han ID with variable" . testQueryParams
(\v -> if v == "someId"
then Just "1002"
else Nothing)
[r| query FetchSomeIDQuery($someId: String!) {
human(id: $someId) {
name
}
}
|]
$ object [ "data" .= object [
"human" .= object [hanName]
]]
-- TODO: Enable after Error handling restoration
-- , testCase "Invalid ID" . testQueryParams
-- (\v -> if v == "id"
-- then Just "Not a valid ID"
-- else Nothing)
-- [r| query humanQuery($id: String!) {
-- human(id: $id) {
-- name
-- }
-- }
-- |] $ object ["data" .= object ["human" .= object ["name" .= Aeson.Null]],
-- "errors" .= Aeson.toJSON [object ["message" .= ("field name not resolved." :: Text)]]]
-- TODO: This test is directly ported from `graphql-js`, however do we want
-- to mimic the same behavior? Is this part of the spec? Once proper
-- exceptions are implemented this test might no longer be meaningful.
-- If the same behavior needs to be replicated, should it be implemented
-- when defining the `Schema` or when executing?
-- $ object [ "data" .= object ["human" .= Aeson.Null] ]
, testCase "Luke aliased" . testQuery
[r| query FetchLukeAliased {
luke: human(id: "1000") {
name
}
}
|]
$ object [ "data" .= object [
"luke" .= object [lukeName]
]]
, testCase "R2-D2 ID and friends aliased" . testQuery
[r| query HeroNameAndFriendsQuery {
hero {
id
name
friends {
friendName: name
}
}
}
|]
$ object [ "data" .= object [
"hero" .= object [
"id" .= ("2001" :: Text)
, r2d2Name
, "friends" .= [
object ["friendName" .= ("Luke Skywalker" :: Text)]
, object ["friendName" .= ("Han Solo" :: Text)]
, object ["friendName" .= ("Leia Organa" :: Text)]
]
]
]]
, testCase "Luke and Leia aliased" . testQuery
[r| query FetchLukeAndLeiaAliased {
luke: human(id: "1000") {
name
}
leia: human(id: "1003") {
name
}
}
|]
$ object [ "data" .= object [
"luke" .= object [lukeName]
, "leia" .= object [leiaName]
]]
, testGroup "Fragments for complex queries"
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[ testCase "Aliases to query for duplicate content" . testQuery
[r| query DuplicateFields {
luke: human(id: "1000") {
name
homePlanet
}
leia: human(id: "1003") {
name
homePlanet
}
}
|]
$ object [ "data" .= object [
"luke" .= object [lukeName, tatooine]
, "leia" .= object [leiaName, alderaan]
]]
, testCase "Fragment for duplicate content" . testQuery
[r| query UseFragment {
luke: human(id: "1000") {
...HumanFragment
}
leia: human(id: "1003") {
...HumanFragment
}
}
fragment HumanFragment on Human {
name
homePlanet
}
|]
$ object [ "data" .= object [
"luke" .= object [lukeName, tatooine]
, "leia" .= object [leiaName, alderaan]
]]
]
, testGroup "__typename"
[ testCase "R2D2 is a Droid" . testQuery
[r| query CheckTypeOfR2 {
hero {
__typename
name
}
}
|]
$ object ["data" .= object [
"hero" .= ["__typename" .= ("Droid" :: Text), r2d2Name]
]]
, testCase "Luke is a human" . testQuery
[r| query CheckTypeOfLuke {
hero(episode: EMPIRE) {
__typename
name
}
}
|]
$ object ["data" .= object [
"hero" .= ["__typename" .= ("Human" :: Text), lukeName]
]]
]
, testGroup "Errors in resolvers"
[ testCase "error on secretBackstory" . testQuery
[r| query HeroNameQuery {
hero {
name
secretBackstory
}
}
|]
$ object ["data" .= object [
"hero" .= [r2d2Name, secretBackstory]
]
, "errors" .= object [
"message" .= Aeson.toJSON [secretText]
, "path" .= Aeson.toJSON [[ "hero" :: Text, "secretBackstory" :: Text ]]
]]
, testCase "Error in a list" . testQuery
[r| query HeroNameQuery {
hero {
name
friends {
name
secretBackstory
}
}
}
|]
$ object ["data" .= object [
"hero" .= [r2d2Name, "friends" .= [
object [lukeName, secretBackstory]
, object [hanName, secretBackstory]
, object [leiaName, secretBackstory]
]]
]
, "errors" .= object [
"message" .= Aeson.toJSON [secretText, secretText, secretText]
, "path" .= Aeson.toJSON [secretPath 0, secretPath 1, secretPath 2]
]]
, testCase "error on secretBackstory with alias" . testQuery
[r| query HeroNameQuery {
mainHero: hero {
name
story: secretBackstory
}
}
|]
$ object ["data" .= object [
"mainHero" .= [r2d2Name, "story" .= ()]
]
, "errors" .= object [
"message" .= Aeson.toJSON [secretText]
, "path" .= Aeson.toJSON [[ "mainHero" :: Text, "story" :: Text ]]
]]
]
]
where
lukeName = "name" .= ("Luke Skywalker" :: Text)
leiaName = "name" .= ("Leia Organa" :: Text)
hanName = "name" .= ("Han Solo" :: Text)
r2d2Name = "name" .= ("R2-D2" :: Text)
c3poName = "name" .= ("C-3PO" :: Text)
tatooine = "homePlanet" .= ("Tatooine" :: Text)
alderaan = "homePlanet" .= ("Alderaan" :: Text)
secretBackstory = "secretBackstory" .= ()
secretText = "secretBackstory is secret" :: Text
secretPath n = ("hero", "friends", n, "secretBackstory") :: (Text, Text, Int, Text)
testQuery :: Text -> Aeson.Value -> Assertion
testQuery q expected = graphql schema q @?= Just expected
-- testFail :: Text -> Assertion
-- testFail q = graphql schema q @?= Nothing
testQueryParams :: Subs -> Text -> Aeson.Value -> Assertion
testQueryParams f q expected = graphqlSubs schema f q @?= Just expected
-- testFailParams :: Subs -> Text -> Assertion
-- testFailParams f q = graphqlSubs schema f q @?= Nothing