format and fix tests

Author: David Motsonashvili

firebase-ai/src/main/kotlin/com/google/firebase/ai/type/Content.kt

@@ -85,8 +85,7 @@ constructor(public val role: String? = "user", public val parts: List<Part>) {
   }
 
   @OptIn(ExperimentalSerializationApi::class)
-  internal fun toInternal() =
-    Internal(this.role ?: "user", this.parts.map { it.toInternal() })
+  internal fun toInternal() = Internal(this.role ?: "user", this.parts.map { it.toInternal() })
 
   @ExperimentalSerializationApi
   @Serializable

firebase-ai/src/test/java/com/google/firebase/ai/type/FunctionDeclarationTest.kt

@@ -18,10 +18,12 @@ package com.google.firebase.ai.type
 
 import io.kotest.assertions.json.shouldEqualJson
 import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.ClassDiscriminatorMode
 import kotlinx.serialization.json.Json
 import org.junit.Test
 
 internal class FunctionDeclarationTest {
+  internal val JSON = Json { classDiscriminatorMode = ClassDiscriminatorMode.NONE }
 
   @Test
   fun `Basic FunctionDeclaration with name, description and parameters`() {
@@ -53,7 +55,7 @@ internal class FunctionDeclarationTest {
     """
         .trimIndent()
 
-    Json.encodeToString(functionDeclaration.toInternal()).shouldEqualJson(expectedJson)
+    JSON.encodeToString(functionDeclaration.toInternal()).shouldEqualJson(expectedJson)
   }
 
   @Test
@@ -95,6 +97,6 @@ internal class FunctionDeclarationTest {
     """
         .trimIndent()
 
-    Json.encodeToString(functionDeclaration.toInternal()).shouldEqualJson(expectedJson)
+    JSON.encodeToString(functionDeclaration.toInternal()).shouldEqualJson(expectedJson)
   }
 }