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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package com.example.test_plugin
import io.flutter.plugin.common.BinaryMessenger
import io.mockk.every
import io.mockk.mockk
import io.mockk.slot
import io.mockk.verify
import junit.framework.TestCase
import org.junit.Test
class NullableReturnsTest: TestCase() {
@Test
fun testNullableParameterHost() {
val binaryMessenger = mockk<BinaryMessenger>(relaxed = true)
val api = mockk<NullableReturnHostApi>(relaxed = true)
val output = 1L
val channelName = "dev.flutter.pigeon.NullableReturnHostApi.doit"
val handlerSlot = slot<BinaryMessenger.BinaryMessageHandler>()
every { binaryMessenger.setMessageHandler(channelName, capture(handlerSlot)) } returns Unit
every { api.doit() } returns output
NullableReturnHostApi.setUp(binaryMessenger, api)
val codec = PrimitiveHostApi.codec
val message = codec.encodeMessage(null)
message?.rewind()
handlerSlot.captured.onMessage(message) {
it?.rewind()
@Suppress("UNCHECKED_CAST")
val wrapped = codec.decodeMessage(it) as List<Any>?
assertNotNull(wrapped)
wrapped?.let {
assertEquals(output, wrapped[0])
}
}
verify { binaryMessenger.setMessageHandler(channelName, handlerSlot.captured) }
verify { api.doit() }
}
@Test
fun testNullableParameterFlutter() {
val binaryMessenger = mockk<BinaryMessenger>()
val api = NullableReturnFlutterApi(binaryMessenger)
val output = 12L
every { binaryMessenger.send(any(), any(), any()) } answers {
val codec = NullableReturnFlutterApi.codec
val reply = arg<BinaryMessenger.BinaryReply>(2)
val replyData = codec.encodeMessage(output)
replyData?.position(0)
reply.reply(replyData)
}
var didCall = false
api.doit {
didCall = true
assertEquals(output, it)
}
assertTrue(didCall)
}
}