diff --git a/core/testing/src/main/java/kr/co/testing/repository/TestRecentRepository.kt b/core/testing/src/main/java/kr/co/testing/repository/TestRecentRepository.kt
deleted file mode 100644
index 72f04c0..0000000
--- a/core/testing/src/main/java/kr/co/testing/repository/TestRecentRepository.kt
+++ /dev/null
@@ -1,24 +0,0 @@
-package kr.co.testing.repository
-
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.update
-import kr.co.data.repository.RecentRepository
-import kr.co.model.FileInfo
-
-class TestRecentRepository: RecentRepository {
-
-    private val recentFilesFlow: MutableStateFlow<List<FileInfo>> =
-        MutableStateFlow(emptyList())
-
-    override suspend fun insert(recentFile: FileInfo) {
-        recentFilesFlow.update { it + recentFile }
-    }
-
-    override fun get(): Flow<List<FileInfo>> =
-        recentFilesFlow
-
-    override suspend fun delete(recentFile: FileInfo) {
-        recentFilesFlow.update { it - recentFile }
-    }
-}
\ No newline at end of file
diff --git a/feature/bookmark/src/test/kotlin/kr/co/bookmark/BookmarkViewModelTest.kt b/feature/bookmark/src/test/kotlin/kr/co/bookmark/BookmarkViewModelTest.kt
new file mode 100644
index 0000000..054fb5e
--- /dev/null
+++ b/feature/bookmark/src/test/kotlin/kr/co/bookmark/BookmarkViewModelTest.kt
@@ -0,0 +1,92 @@
+package kr.co.bookmark
+
+import app.cash.turbine.test
+import io.mockk.MockKAnnotations
+import io.mockk.coEvery
+import io.mockk.impl.annotations.MockK
+import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.test.runTest
+import kr.co.data.repository.BookmarkRepository
+import kr.co.data.repository.RecentRepository
+import kr.co.model.BookmarkSideEffect
+import kr.co.model.BookmarkUiIntent
+import kr.co.model.FileInfo
+import kr.co.model.FileInfo.Type.PDF
+import kr.co.testing.rule.CoroutineTestRule
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import java.time.LocalDateTime
+import kotlin.test.assertEquals
+
+internal class BookmarkViewModelTest {
+
+    @get: Rule
+    val coroutineTestRule = CoroutineTestRule()
+
+    @MockK
+    private lateinit var bookmarkRepository: BookmarkRepository
+
+    @MockK
+    private lateinit var recentRepository: RecentRepository
+
+    private lateinit var viewModel: BookmarkViewModel
+
+    @Before
+    fun setup() {
+        MockKAnnotations.init(this)
+        viewModel = BookmarkViewModel(bookmarkRepository,recentRepository)
+    }
+
+    @Test
+    fun `Given a Unit when Init intent is handled then state is updated`() = runTest {
+        val dummy = listOf(PDF_DUMMY, PDF_DUMMY)
+
+        coEvery { bookmarkRepository.get() } returns flowOf(dummy)
+
+        viewModel.handleIntent(BookmarkUiIntent.Init)
+
+        viewModel.uiState.test {
+            val state = awaitItem()
+            assertEquals(state.files, dummy)
+        }
+    }
+
+    @Test
+    fun `Given a file when ClickFile intent is handled then navigate to pdf`() = runTest {
+        val file = PDF_DUMMY
+
+        viewModel.handleIntent(BookmarkUiIntent.ClickFile(file))
+
+        viewModel.sideEffect.test {
+            awaitItem().also {
+                assert(it is BookmarkSideEffect.NavigateToPdf)
+                assert((it as BookmarkSideEffect.NavigateToPdf).path == file.path)
+            }
+        }
+    }
+
+    companion object {
+        val PDF_DUMMY = FileInfo(
+            name = "DUMMY.pdf",
+            path = "",
+            type = PDF,
+            isDirectory = false,
+            isHidden = false,
+            size = 0,
+            createdAt = LocalDateTime.now(),
+            lastModified = LocalDateTime.now()
+        )
+
+        val FOLDER_DUMMY = FileInfo(
+            name = "DUMMY",
+            path = "",
+            type = PDF,
+            isDirectory = true,
+            isHidden = false,
+            size = 0,
+            createdAt = LocalDateTime.now(),
+            lastModified = LocalDateTime.now()
+        )
+    }
+}
\ No newline at end of file
diff --git a/feature/explore/src/test/kotlin/kr/co/explore/ExploreViewModelTest.kt b/feature/explore/src/test/kotlin/kr/co/explore/ExploreViewModelTest.kt
index 8b44da1..4406134 100644
--- a/feature/explore/src/test/kotlin/kr/co/explore/ExploreViewModelTest.kt
+++ b/feature/explore/src/test/kotlin/kr/co/explore/ExploreViewModelTest.kt
@@ -5,11 +5,11 @@ import io.mockk.MockKAnnotations
 import io.mockk.coEvery
 import io.mockk.impl.annotations.MockK
 import kotlinx.coroutines.test.runTest
+import kr.co.data.repository.RecentRepository
 import kr.co.model.ExploreSideEffect
 import kr.co.model.ExploreUiIntent
 import kr.co.model.FileInfo
 import kr.co.model.FileInfo.Type.PDF
-import kr.co.testing.repository.TestRecentRepository
 import kr.co.testing.rule.CoroutineTestRule
 import kr.co.util.FileManager
 import org.junit.Before
@@ -26,7 +26,8 @@ class ExploreViewModelTest {
 
     private lateinit var viewModel: ExploreViewModel
 
-    private val recentRepository = TestRecentRepository()
+    @MockK
+    private lateinit var recentRepository: RecentRepository
 
     @MockK
     private lateinit var fileManager: FileManager
@@ -93,7 +94,6 @@ class ExploreViewModelTest {
             }
         }
     }
-
     companion object {
         val PDF_DUMMY = FileInfo(
             name = "DUMMY.pdf",