feat(widget): 캐릭터 채팅 썸네일 컴포넌트를 추가한다

app/src/test/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="false"
+        tools:replace="android:allowBackup" />
+</manifest>

app/src/test/java/kr/co/vividnext/sodalive/v2/widget/characterchatthumbnail/CharacterChatCountFormatterTest.kt

@@ -0,0 +1,42 @@
+package kr.co.vividnext.sodalive.v2.widget.characterchatthumbnail
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class CharacterChatCountFormatterTest {
+
+    @Test
+    fun `zero count displays zero`() {
+        assertEquals("0", CharacterChatCountFormatter.format(0))
+    }
+
+    @Test
+    fun `under ten thousand displays plain number`() {
+        assertEquals("9999", CharacterChatCountFormatter.format(9999))
+    }
+
+    @Test
+    fun `ten thousand or more displays korean ten thousand unit`() {
+        assertEquals("1만", CharacterChatCountFormatter.format(10000))
+        assertEquals("1.4만", CharacterChatCountFormatter.format(14000))
+    }
+
+    @Test
+    fun `ten thousand unit decimal is truncated`() {
+        assertEquals("1.9만", CharacterChatCountFormatter.format(19999))
+        assertEquals("2.9만", CharacterChatCountFormatter.format(29999))
+        assertEquals("9.9만", CharacterChatCountFormatter.format(99999))
+    }
+
+    @Test
+    fun `one hundred thousand or more displays integer korean ten thousand unit`() {
+        assertEquals("10만", CharacterChatCountFormatter.format(100000))
+        assertEquals("10만", CharacterChatCountFormatter.format(109999))
+        assertEquals("99만", CharacterChatCountFormatter.format(999999))
+    }
+
+    @Test
+    fun `negative count displays zero`() {
+        assertEquals("0", CharacterChatCountFormatter.format(-1))
+    }
+}

app/src/test/java/kr/co/vividnext/sodalive/v2/widget/characterchatthumbnail/CharacterChatThumbnailItemTest.kt

@@ -0,0 +1,64 @@
+package kr.co.vividnext.sodalive.v2.widget.characterchatthumbnail
+
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class CharacterChatThumbnailItemTest {
+
+    @Test
+    fun `item keeps character display fields`() {
+        val item = sampleItem()
+
+        assertEquals(10L, item.characterId)
+        assertEquals("https://example.com/character.png", item.imageUrl)
+        assertEquals("캐릭터 이름", item.characterName)
+        assertEquals("캐릭터 소개", item.characterDescription)
+        assertEquals(14000L, item.chatMessageCount)
+    }
+
+    @Test
+    fun `original title is visible when item has original`() {
+        val item = sampleItem(hasOriginal = true, originalTitle = "작품 이름")
+
+        assertTrue(item.shouldShowOriginalTitle)
+        assertEquals("작품 이름", item.originalTitle)
+    }
+
+    @Test
+    fun `original title keeps space when item has no original`() {
+        val item = sampleItem(hasOriginal = false, originalTitle = "")
+
+        assertFalse(item.shouldShowOriginalTitle)
+        assertEquals("", item.originalTitle)
+    }
+
+    @Test
+    fun `chat count badge is hidden when count is less than one hundred`() {
+        val item = sampleItem(chatMessageCount = 99L)
+
+        assertFalse(item.shouldShowChatCountBadge)
+    }
+
+    @Test
+    fun `chat count badge is visible when count is one hundred or more`() {
+        val item = sampleItem(chatMessageCount = 100L)
+
+        assertTrue(item.shouldShowChatCountBadge)
+    }
+
+    private fun sampleItem(
+        hasOriginal: Boolean = true,
+        originalTitle: String = "작품 이름",
+        chatMessageCount: Long = 14000L
+    ) = CharacterChatThumbnailItem(
+        characterId = 10L,
+        imageUrl = "https://example.com/character.png",
+        characterName = "캐릭터 이름",
+        characterDescription = "캐릭터 소개",
+        chatMessageCount = chatMessageCount,
+        hasOriginal = hasOriginal,
+        originalTitle = originalTitle
+    )
+}

app/src/test/java/kr/co/vividnext/sodalive/v2/widget/characterchatthumbnail/CharacterChatThumbnailViewTest.kt

@@ -0,0 +1,121 @@
+package kr.co.vividnext.sodalive.v2.widget.characterchatthumbnail
+
+import android.app.Application
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.test.core.app.ApplicationProvider
+import kr.co.vividnext.sodalive.R
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertSame
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+
+@RunWith(RobolectricTestRunner::class)
+@Config(sdk = [28], application = Application::class)
+class CharacterChatThumbnailViewTest {
+
+    @Test
+    fun `bind displays character fields and visible states`() {
+        val view = inflateView()
+
+        view.bind(sampleItem())
+
+        assertEquals("1.4만", view.chatCountText().text.toString())
+        assertEquals(View.VISIBLE, view.chatCountBadge().visibility)
+        assertEquals("캐릭터 이름", view.nameText().text.toString())
+        assertEquals("캐릭터 소개", view.descriptionText().text.toString())
+        assertEquals("작품 이름", view.originalTitleText().text.toString())
+        assertEquals(View.VISIBLE, view.originalTitleText().visibility)
+    }
+
+    @Test
+    fun `bind hides chat badge and keeps original title space when item requires it`() {
+        val view = inflateView()
+
+        view.bind(sampleItem(chatMessageCount = 99L, hasOriginal = false, originalTitle = ""))
+
+        assertEquals(View.GONE, view.chatCountBadge().visibility)
+        assertEquals(View.INVISIBLE, view.originalTitleText().visibility)
+    }
+
+    @Test
+    fun `imageView returns thumbnail image view`() {
+        val view = inflateView()
+
+        assertSame(view.findViewById<ImageView>(R.id.iv_character_chat_thumbnail_image), view.imageView())
+    }
+
+    @Test
+    fun `setOnCharacterClick invokes listener with bound item`() {
+        val view = inflateView()
+        val item = sampleItem(characterId = 20L)
+        var clickedItem: CharacterChatThumbnailItem? = null
+
+        view.bind(item)
+        view.setOnCharacterClick { clickedItem = it }
+        view.performClick()
+
+        assertSame(item, clickedItem)
+    }
+
+    @Test
+    fun `setOnCharacterClick removes root click listener when listener is null`() {
+        val view = inflateView()
+        var clickCount = 0
+
+        view.bind(sampleItem())
+        view.setOnCharacterClick { clickCount += 1 }
+        view.setOnCharacterClick(null)
+
+        assertFalse(view.isClickable)
+        assertFalse(view.hasOnClickListeners())
+        view.performClick()
+        assertEquals(0, clickCount)
+    }
+
+    private fun inflateView(): CharacterChatThumbnailView {
+        val context = ApplicationProvider.getApplicationContext<Context>()
+        return LayoutInflater.from(context).inflate(
+            R.layout.view_character_chat_thumbnail,
+            null,
+            false
+        ) as CharacterChatThumbnailView
+    }
+
+    private fun CharacterChatThumbnailView.chatCountBadge(): View =
+        findViewById(R.id.ll_character_chat_count_badge)
+
+    private fun CharacterChatThumbnailView.chatCountText(): TextView =
+        findViewById(R.id.tv_character_chat_count)
+
+    private fun CharacterChatThumbnailView.nameText(): TextView =
+        findViewById(R.id.tv_character_chat_name)
+
+    private fun CharacterChatThumbnailView.descriptionText(): TextView =
+        findViewById(R.id.tv_character_chat_description)
+
+    private fun CharacterChatThumbnailView.originalTitleText(): TextView =
+        findViewById(R.id.tv_character_chat_original_title)
+
+    private fun sampleItem(
+        characterId: Long = 10L,
+        chatMessageCount: Long = 14000L,
+        hasOriginal: Boolean = true,
+        originalTitle: String = "작품 이름"
+    ) = CharacterChatThumbnailItem(
+        characterId = characterId,
+        imageUrl = "https://example.com/character.png",
+        characterName = "캐릭터 이름",
+        characterDescription = "캐릭터 소개",
+        chatMessageCount = chatMessageCount,
+        hasOriginal = hasOriginal,
+        originalTitle = originalTitle
+    )
+}