core/jvmTest/src/kotlinx/serialization/CachingTest.kt


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/*
 * Copyright 2017-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

package kotlinx.serialization

import kotlinx.serialization.internal.*
import kotlinx.serialization.modules.*
import org.junit.Test
import kotlin.reflect.*
import kotlin.test.*

class CachingTest {
    @Test
    fun testCache() {
        var factoryCalled = 0

        val cache = createCache {
            factoryCalled += 1
            it.serializerOrNull()
        }

        repeat(10) {
            cache.get(typeOf<String>().kclass())
        }

        assertEquals(1, factoryCalled)
    }

    @Test
    fun testParameterizedCache() {
        var factoryCalled = 0

        val cache = createParametrizedCache { clazz, types ->
            factoryCalled += 1
            val serializers = EmptySerializersModule().serializersForParameters(types, true)!!
            clazz.parametrizedSerializerOrNull(serializers) { types[0].classifier }
        }

        repeat(10) {
            cache.get(typeOf<Map<*, *>>().kclass(), listOf(typeOf<String>(), typeOf<String>()))
        }

        assertEquals(1, factoryCalled)
    }
}