fix(content): 콘텐츠 상세 펼침 말줄임을 복원한다

app/src/main/java/kr/co/vividnext/sodalive/audio_content/detail/AudioContentDetailActivity.kt

@@ -1,3 +1,5 @@
+@file:Suppress("ktlint:package-name", "ktlint:standard:package-name")
+
 package kr.co.vividnext.sodalive.audio_content.detail
 
 import android.annotation.SuppressLint
@@ -10,6 +12,7 @@ import android.os.Build
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
+import android.text.TextUtils
 import android.view.LayoutInflater
 import android.view.View
 import android.view.inputmethod.InputMethodManager
@@ -463,6 +466,11 @@ class AudioContentDetailActivity : BaseActivity<ActivityAudioContentDetailBindin
         }
 
         viewModel.isExpandDetail.observe(this) {
+            binding.tvDetail.ellipsize = if (it) {
+                null
+            } else {
+                TextUtils.TruncateAt.END
+            }
             binding.tvDetail.maxLines = if (it) {
                 Int.MAX_VALUE
             } else {

app/src/test/java/kr/co/vividnext/sodalive/audio_content/detail/AudioContentDetailActivitySourceTest.kt

@@ -0,0 +1,51 @@
+@file:Suppress("ktlint:package-name", "ktlint:standard:package-name")
+
+package kr.co.vividnext.sodalive.audio_content.detail
+
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import java.io.File
+
+class AudioContentDetailActivitySourceTest {
+
+    @Test
+    fun `긴 설명을 펼치면 말줄임을 제거한다`() {
+        val observer = expandDetailObserver()
+
+        assertTrue(observer.contains("binding.tvDetail.ellipsize = if (it)"))
+        assertTrue(observer.contains("null"))
+        assertTrue(observer.contains("Int.MAX_VALUE"))
+    }
+
+    @Test
+    fun `긴 설명을 접으면 두 줄 말줄임을 복원한다`() {
+        val observer = expandDetailObserver()
+
+        assertTrue(observer.contains("TextUtils.TruncateAt.END"))
+        assertTrue(observer.contains("2"))
+    }
+
+    @Test
+    fun `긴 설명의 반복 토글 상태를 한 observer에서 처리한다`() {
+        val observer = expandDetailObserver()
+
+        assertTrue(observer.contains("binding.tvDetail.ellipsize = if (it)"))
+        assertTrue(observer.contains("binding.tvDetail.maxLines = if (it)"))
+    }
+
+    private fun expandDetailObserver(): String {
+        val source = projectFile(
+            "app/src/main/java/kr/co/vividnext/sodalive/audio_content/detail/AudioContentDetailActivity.kt"
+        ).readText()
+
+        return source
+            .substringAfter("viewModel.isExpandDetail.observe(this) {")
+            .substringBefore("viewModel.isShowPreviewAlert.observe(this) {")
+    }
+
+    private fun projectFile(relativePath: String): File {
+        val candidates = listOf(File(relativePath), File("../$relativePath"))
+        return candidates.firstOrNull { it.exists() }
+            ?: error("Project file not found: $relativePath")
+    }
+}