diff --git a/src/test/kotlin/dev/usbharu/hideout/mastodon/domain/model/NotificationTypeTest.kt b/src/test/kotlin/dev/usbharu/hideout/mastodon/domain/model/NotificationTypeTest.kt
new file mode 100644
index 00000000..87244005
--- /dev/null
+++ b/src/test/kotlin/dev/usbharu/hideout/mastodon/domain/model/NotificationTypeTest.kt
@@ -0,0 +1,43 @@
+package dev.usbharu.hideout.mastodon.domain.model
+
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.Arguments.arguments
+import org.junit.jupiter.params.provider.MethodSource
+import org.junit.jupiter.params.provider.ValueSource
+import java.util.stream.Stream
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+
+class NotificationTypeTest {
+    @ParameterizedTest
+    @MethodSource("parseSuccessProvider")
+    fun parseに成功する(s: String, notificationType: NotificationType) {
+        assertEquals(notificationType, NotificationType.parse(s))
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = ["hoge", "fuga", "0x1234", "follow_reject", "test", "mentiooon", "emoji_reaction", "reaction"])
+    fun parseに失敗する(s: String) {
+        assertNull(NotificationType.parse(s))
+    }
+
+    companion object {
+        @JvmStatic
+        fun parseSuccessProvider(): Stream<Arguments> {
+            return Stream.of(
+                arguments("mention", NotificationType.mention),
+                arguments("status", NotificationType.status),
+                arguments("reblog", NotificationType.reblog),
+                arguments("follow", NotificationType.follow),
+                arguments("follow_request", NotificationType.follow_request),
+                arguments("favourite", NotificationType.favourite),
+                arguments("poll", NotificationType.poll),
+                arguments("update", NotificationType.update),
+                arguments("admin.sign_up", NotificationType.admin_sign_up),
+                arguments("admin.report", NotificationType.admin_report),
+                arguments("servered_relationships", NotificationType.severed_relationships)
+            )
+        }
+    }
+}