feat: implement AI navigation, voice assistant service, and unit tests

app/src/test/java/com/example/voiceapp/domain/CommandParserTest.kt

@@ -1,6 +1,7 @@
 package com.example.voiceapp.domain
 
 import com.example.voiceapp.domain.executor.GetTimeDateExecutor
+import com.example.voiceapp.domain.executor.NavigateAiExecutor
 import com.example.voiceapp.domain.executor.SetAlarmTimerExecutor
 import com.example.voiceapp.domain.model.CommandId
 import org.junit.Assert.assertEquals
@@ -13,12 +14,19 @@ class CommandParserTest {
     @Before
     fun setUp() {
         val definitions = listOf(
+            CommandDefinition(CommandId.NAVIGATE_AI, listOf(Regex(".*(ナビ|行きたい|向かう|セット).*")), NavigateAiExecutor(org.mockito.Mockito.mock(android.content.Context::class.java))),
             CommandDefinition(CommandId.GET_TIME_DATE, listOf(Regex(".*(今何時|何時ですか|日付|今日).*")), GetTimeDateExecutor()),
             CommandDefinition(CommandId.SET_ALARM_TIMER, listOf(Regex(".*(\\d+)\\s*(分|秒|時間)の?タイマー.*"), Regex(".*(\\d+)\\s*時にアラーム.*")), SetAlarmTimerExecutor())
         )
         parser = CommandParser(definitions)
     }
 
+    @Test
+    fun parse_navigateAi_returnsNavigateAiCommand() {
+        val result = parser.parse("仕事で行く東京駅に向かう")
+        assertEquals(CommandId.NAVIGATE_AI, result.commandId)
+    }
+
     @Test
     fun parse_getTime_returnsGetTimeDateCommand() {
         val result = parser.parse("今何時？")

app/src/test/java/com/example/voiceapp/domain/ExecuteCommandUseCaseTest.kt

@@ -1,5 +1,6 @@
 package com.example.voiceapp.domain
 
+import com.example.voiceapp.domain.converter.KanjiToNumberConverter
 import com.example.voiceapp.domain.executor.GetTimeDateExecutor
 import com.example.voiceapp.domain.model.CommandId
 import kotlinx.coroutines.test.runTest
@@ -17,7 +18,8 @@ class ExecuteCommandUseCaseTest {
             CommandDefinition(CommandId.GET_TIME_DATE, listOf(Regex(".*(今何時|何時ですか|日付|今日).*")), GetTimeDateExecutor())
         )
         val parser = CommandParser(definitions)
-        useCase = ExecuteCommandUseCase(parser)
+        val kanjiConverter = KanjiToNumberConverter
+        useCase = ExecuteCommandUseCase(kanjiConverter, parser)
     }
 
     @Test

app/src/test/java/com/example/voiceapp/ui/MainViewModelTest.kt

@@ -15,11 +15,13 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.advanceTimeBy
 import kotlinx.coroutines.test.resetMain
 import kotlinx.coroutines.test.runTest
 import kotlinx.coroutines.test.setMain
 import org.junit.After
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
 
@@ -65,4 +67,17 @@ class MainViewModelTest {
             assertEquals("現在は10時00分です。", history[1].text)
         }
     }
+
+    @Test
+    fun errorState_autoResetsToIdleAfter3000ms() = runTest {
+        recognizerState.value = VoiceRecognitionState.Error(1, "Speech error")
+        testDispatcher.scheduler.runCurrent()
+
+        assertTrue(viewModel.uiState.value is VoiceAppState.Error)
+
+        testDispatcher.scheduler.advanceTimeBy(3001)
+        testDispatcher.scheduler.runCurrent()
+
+        assertEquals(VoiceAppState.Idle, viewModel.uiState.value)
+    }
 }