A serialization test between our serialization libraries

SerializeTest.kt

@Serializable
data class User(
    val name: String,
    val email: String,
    val age: Int = 13,
    val isAlive: Boolean = false,
    val role: Role = Role.Viewer,
    val bodyType: BodyType = BodyType(Body.NotSkinny),
)
@Serializable
data class BodyType(
    val type: Body? = null
)
enum class Body { Skinny, NotSkinny }
enum class Role { Viewer, Editor, Owner }
class SerializeTest {
    private val jsonString = """
            {
                "name" : "John Doe",
                "email" : "john.doe@email.com"
            }
    """.trimIndent()
    @Test
    fun gsonTest() {
        val user = Gson().fromJson(jsonString, User::class.java)
        assertEquals("John Doe", user.name)
        assertEquals(Role.Viewer, user.role)
        assertEquals(13, user.age)
        assertEquals(false, user.isAlive)
        assertEquals(BodyType(Body.NotSkinny), user.bodyType)
    }
    @Test
    fun jsonTest() {
        val user = Json.decodeFromString<User>(jsonString)
        assertEquals("John Doe", user.name)
        assertEquals(Role.Viewer, user.role)
        assertEquals(13, user.age)
        assertEquals(false, user.isAlive)
        assertEquals(BodyType(Body.NotSkinny), user.bodyType)
    }

    @Test
    fun moshiTest() {
        val moshi = Moshi.Builder().add(KotlinJsonAdapterFactory()).build()
        val jsonAdapter = moshi.adapter(User::class.java)
        val user = jsonAdapter.fromJson(jsonString)
        assertEquals("John Doe", user?.name)
        assertEquals(Role.Viewer, user?.role)
        assertEquals(13, user?.age)
        assertEquals(false, user?.isAlive)
        assertEquals(BodyType(Body.NotSkinny), user?.bodyType)
    }
}

//for gradle(:app)
dependencies {
    implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.1.0"
    implementation("com.squareup.moshi:moshi-kotlin:1.12.0")
    implementation 'com.google.code.gson:gson:2.8.6'
}