Add ForwardRefineTest

mirai-core/src/commonMain/kotlin/message/LongMessageInternal.kt

@@ -38,6 +38,10 @@ internal data class LongMessageInternal internal constructor(override val conten
 internal data class ForwardMessageInternal(
     override val content: String,
     val resId: String?,
+    /**
+     * null means top-level.
+     * not null means nested and need [ForwardMessageInternal.MsgTransmits] in [RefineContext]
+     */
     val fileName: String?,
 ) : AbstractServiceMessage(),
     RefinableMessage {

mirai-core/src/commonMain/kotlin/message/RefinableMessage.kt

@@ -121,7 +121,7 @@ internal object EmptyRefineContext : RefineContext {
 
 @Suppress("UNCHECKED_CAST")
 internal class SimpleRefineContext(
-    private val delegate: MutableMap<RefineContextKey<*>, Any>
+    private val delegate: MutableMap<RefineContextKey<*>, Any> = mutableMapOf()
 ) : MutableRefineContext {
 
     override fun contains(key: RefineContextKey<*>): Boolean = delegate.containsKey(key)

mirai-core/src/jvmTest/kotlin/message/data/ForwardRefineTest.kt

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2019-2021 Mamoe Technologies and contributors.
+ *
+ *  此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ *  Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ *  https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.internal.message.data
+
+import net.mamoe.mirai.Bot
+import net.mamoe.mirai.internal.AbstractTestWithMiraiImpl
+import net.mamoe.mirai.internal.MockBot
+import net.mamoe.mirai.internal.message.DeepMessageRefiner.refineDeep
+import net.mamoe.mirai.internal.message.ForwardMessageInternal
+import net.mamoe.mirai.internal.message.SimpleRefineContext
+import net.mamoe.mirai.internal.test.runBlockingUnit
+import net.mamoe.mirai.internal.utils._miraiContentToString
+import net.mamoe.mirai.message.data.*
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+internal class ForwardRefineTest : AbstractTestWithMiraiImpl() {
+    private val bot = MockBot()
+
+    companion object {
+        private const val content = """
+            <?xml version="1.0" encoding="utf-8"?>
+    <msg brief="[聊天记录]" m_fileName="C85BCFB5-3143-41E2-860B-172D5E3FAFAC" action="viewMultiMsg" tSum="2" flag="3" m_resid="ZnAsFPOuieB0CJt7HJ6zC1Rq0MRqfso44OAvY99wqePeYYcGr03NI6UXB24QqefR" serviceID="35" m_fileSize="171"  > <item layout="1"> <title color="#000000" size="34" > 群聊的聊天记录 </title> <title color="#000000" size="26" > A:@B ‘ </title> <title color="#000000" size="26" > A:@B ’ </title>  <hr></hr> <summary color="#808080" size="26" > 查看转发消息  </summary> </item><source name="聊天记录"></source> </msg>
+        """
+        private const val resId = "ZnAsFPOuieB0CJt7HJ6zC1Rq0MRqfso44OAvY99wqePeYYcGr03NI6UXB24QqefR"
+        private val nodes = listOf(ForwardMessage.Node(1, 1, "sender", AtAll))
+    }
+
+    override suspend fun downloadForwardMessage(bot: Bot, resourceId: String): List<ForwardMessage.Node> {
+        assertEquals(resId, resourceId)
+        return nodes
+    }
+
+    @Test
+    fun `can refine ForwardMessageInternal deep`() = runBlockingUnit {
+        val internal = ForwardMessageInternal(content, resId, null)
+        val expectedOrigin =
+            SimpleServiceMessage(internal.serviceId, content) // we do not expose ForwardMessageInternal
+        val refine = internal.toMessageChain().refineDeep(bot, SimpleRefineContext().apply {
+            set(ForwardMessageInternal.MsgTransmits, mapOf())
+        })
+        println(refine.size)
+        println(refine.first()::class)
+        println(refine._miraiContentToString())
+        assertTrue { refine.first() is MessageOrigin }
+        assertTrue { refine.drop(1).first() is ForwardMessage }
+        assertEquals(
+            ForwardMessage(
+                preview = listOf("A:@B ‘", "A:@B ’"),
+                title = "群聊的聊天记录",
+                brief = "[聊天记录]",
+                source = "聊天记录",
+                summary = "查看转发消息",
+                nodeList = nodes
+            ),
+            refine[ForwardMessage]
+        )
+        assertEquals(
+            expectedOrigin,
+            refine[MessageOrigin]!!.origin
+        )
+        assertEquals(
+            MessageOrigin(expectedOrigin, resId, MessageOriginKind.FORWARD),
+            refine[MessageOrigin]
+        )
+    }
+}

mirai-core/src/jvmTest/kotlin/message/data/MessageRefineTest.kt

@@ -96,12 +96,6 @@ private fun RefinableMessage0(
     }
 }
 
-private object MiraiImplForRefineTest : MiraiImpl() {
-    override suspend fun downloadForwardMessage(bot: Bot, resourceId: String): List<ForwardMessage.Node> {
-        return super.downloadForwardMessage(bot, resourceId)
-    }
-}
-
 internal class MessageRefineTest : AbstractTestWithMiraiImpl() {
 
     @Test