package com.foo.bar

import kotlinx.serialization.Serializable
import kotlinx.serialization.SerializationException
import kotlinx.serialization.json.Json
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.assertThrows

class TestDeepJsonFailure {
    @Test
    fun `test deep failure`() {
        val exception = assertThrows<SerializationException> {
            Json.decodeFromString<Foo>("""{"bar": {"bar": {"bar": {"bar": {"bar": {"bar": {"baz": false}}}}}}}""")
        }

        assertEquals(
            """
                Unexpected JSON token at offset 56: Expected start of the object '{', but had 'f' instead at path: ${'$'}.bar.bar.bar.bar.bar.bar.baz
                JSON input: {"bar": {"bar": {"bar": {"bar": {"bar": {"bar": {"baz": false}}}}}}}
            """.trimIndent(),
            exception.message
        )
    }

    @Test
    fun `test deeper failure`() {
        val exception = assertThrows<ArrayIndexOutOfBoundsException> {
            Json.decodeFromString<Foo>("""{"bar": {"bar": {"bar": {"bar": {"bar": {"bar": {"bar": {"baz": false}}}}}}}}""")
        }

        assertEquals(
            "Index 0 out of bounds for length 0",
            exception.message
        )
    }
}

@Serializable
data class Foo(val bar: Foo?, val baz: Baz?)

@Serializable
data object Baz