test(node): Add commonTest for NodeDetailViewModel

feature/node/src/commonTest/kotlin/org/meshtastic/feature/node/detail/NodeDetailViewModelTest.kt

@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2026 Meshtastic LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  See
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.meshtastic.feature.node.detail
+
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.viewModelScope
+import app.cash.turbine.test
+import dev.mokkery.answering.returns
+import dev.mokkery.every
+import dev.mokkery.matcher.any
+import dev.mokkery.mock
+import dev.mokkery.verify
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.emptyFlow
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.test.setMain
+import org.meshtastic.core.model.Node
+import org.meshtastic.core.repository.ServiceRepository
+import org.meshtastic.feature.node.component.NodeMenuAction
+import org.meshtastic.feature.node.domain.usecase.GetNodeDetailsUseCase
+import org.meshtastic.proto.User
+import kotlin.test.AfterTest
+import kotlin.test.BeforeTest
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class NodeDetailViewModelTest {
+
+    private val testDispatcher = StandardTestDispatcher()
+    private lateinit var viewModel: NodeDetailViewModel
+    private val nodeManagementActions: NodeManagementActions = mock()
+    private val nodeRequestActions: NodeRequestActions = mock()
+    private val serviceRepository: ServiceRepository = mock()
+    private val getNodeDetailsUseCase: GetNodeDetailsUseCase = mock()
+
+    @BeforeTest
+    fun setUp() {
+        Dispatchers.setMain(testDispatcher)
+        
+        every { getNodeDetailsUseCase(any()) } returns emptyFlow()
+        every { nodeRequestActions.effects } returns kotlinx.coroutines.flow.MutableSharedFlow()
+        
+        viewModel = createViewModel(1234)
+    }
+
+    private fun createViewModel(nodeId: Int?) = NodeDetailViewModel(
+        savedStateHandle = SavedStateHandle(if (nodeId != null) mapOf("destNum" to nodeId) else emptyMap()),
+        nodeManagementActions = nodeManagementActions,
+        nodeRequestActions = nodeRequestActions,
+        serviceRepository = serviceRepository,
+        getNodeDetailsUseCase = getNodeDetailsUseCase,
+    )
+
+    @AfterTest
+    fun tearDown() {
+        Dispatchers.resetMain()
+    }
+
+    @Test
+    fun testInitialization() {
+        assertNotNull(viewModel)
+    }
+
+    @Test
+    fun `uiState emits updates from useCase`() = runTest {
+        val stateFlow = MutableStateFlow(NodeDetailUiState(node = Node(num = 1234, user = User(id = "!1234"))))
+        every { getNodeDetailsUseCase(1234) } returns stateFlow
+
+        val vm = createViewModel(1234)
+
+        vm.uiState.test {
+            // Initial empty state from stateIn
+            assertEquals(null, awaitItem().node)
+            
+            // State from useCase
+            val state = awaitItem()
+            assertEquals(1234, state.node?.num)
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
+    @Test
+    fun `handleNodeMenuAction delegates to nodeManagementActions for Mute`() = runTest {
+        val node = Node(num = 1234, user = User(id = "!1234"))
+        every { nodeManagementActions.requestMuteNode(any(), any()) } returns Unit
+
+        viewModel.handleNodeMenuAction(NodeMenuAction.Mute(node))
+
+        verify { nodeManagementActions.requestMuteNode(any(), node) }
+    }
+
+    @Test
+    fun `handleNodeMenuAction delegates to nodeRequestActions for Traceroute`() = runTest {
+        val node = Node(num = 1234, user = User(id = "!1234", long_name = "Test Node"))
+        every { nodeRequestActions.requestTraceroute(any(), any(), any()) } returns Unit
+
+        viewModel.handleNodeMenuAction(NodeMenuAction.TraceRoute(node))
+
+        verify { nodeRequestActions.requestTraceroute(any(), 1234, "Test Node") }
+    }
+}