chore: added test

Author: malaquf

servers/graphql-kotlin-spring-server/src/test/kotlin/com/expediagroup/graphql/server/spring/execution/SpringGraphQLRequestParserTest.kt

@@ -29,6 +29,7 @@ import org.springframework.http.HttpMethod
 import org.springframework.http.MediaType
 import org.springframework.mock.web.reactive.function.server.MockServerRequest
 import org.springframework.web.reactive.function.server.ServerRequest
+import org.springframework.web.reactive.function.server.ServerRequest.Headers
 import reactor.core.publisher.Mono
 import java.util.Optional
 import kotlin.test.assertEquals
@@ -113,6 +114,30 @@ class SpringGraphQLRequestParserTest {
         assertNull(graphQLRequest.variables)
     }
 
+    @Test
+    fun `parseRequest should return request if method is POST with content-type json and persisted query extension`() = runTest {
+        val mockRequest = GraphQLRequest("query MyFoo { foo }", "MyFoo", mapOf("a" to 1))
+        val serverRequest = MockServerRequest.builder()
+            .method(HttpMethod.POST)
+            .queryParam(REQUEST_PARAM_EXTENSIONS, """
+                {
+                    "persistedQuery": {
+                        "version": 1,
+                        "sha256Hash": "some-hash"
+                    }
+                }
+            """.trimIndent())
+            .header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+            .body(Mono.justOrEmpty(mockRequest))
+
+        val graphQLRequest = parser.parseRequest(serverRequest)
+        assertNotNull(graphQLRequest)
+        assertTrue(graphQLRequest is GraphQLRequest)
+        assertEquals("query MyFoo { foo }", graphQLRequest.query)
+        assertEquals("MyFoo", graphQLRequest.operationName)
+        assertEquals(1, graphQLRequest.variables?.get("a"))
+    }
+
     @Test
     fun `parseRequest should return request if method is POST with no content-type`() = runTest {
         val mockRequest = GraphQLRequest("query MyFoo { foo }", "MyFoo", mapOf("a" to 1))