diff --git a/app/src/androidTest/java/com/geeksville/mesh/compose/ScannedQrCodeDialogTest.kt b/app/src/androidTest/java/com/geeksville/mesh/compose/ScannedQrCodeDialogTest.kt
new file mode 100644
index 000000000..b9f40878e
--- /dev/null
+++ b/app/src/androidTest/java/com/geeksville/mesh/compose/ScannedQrCodeDialogTest.kt
@@ -0,0 +1,125 @@
+package com.geeksville.mesh.compose
+
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.compose.ui.test.performClick
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import com.geeksville.mesh.AppOnlyProtos.ChannelSet
+import com.geeksville.mesh.ConfigProtos
+import com.geeksville.mesh.R
+import com.geeksville.mesh.channelSet
+import com.geeksville.mesh.channelSettings
+import com.geeksville.mesh.copy
+import com.geeksville.mesh.model.Channel
+import com.geeksville.mesh.ui.components.ScannedQrCodeDialog
+import com.google.protobuf.ByteString
+import org.junit.Assert
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import java.security.SecureRandom
+
+@RunWith(AndroidJUnit4::class)
+class ScannedQrCodeDialogTest {
+
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    private fun getString(id: Int): String =
+        InstrumentationRegistry.getInstrumentation().targetContext.getString(id)
+
+    private fun getRandomKey(): ByteString {
+        val random = SecureRandom()
+        val bytes = ByteArray(32)
+        random.nextBytes(bytes)
+        return ByteString.copyFrom(bytes)
+    }
+
+    private val channels = channelSet {
+        settings.add(Channel.default.settings)
+        loraConfig = Channel.default.loraConfig
+    }
+
+    private val incoming = channelSet {
+        settings.addAll(
+            listOf(
+                Channel.default.settings,
+                channelSettings { name = "2"; psk = getRandomKey() },
+                channelSettings { name = "3"; psk = getRandomKey() },
+                channelSettings { name = "admin"; psk = getRandomKey() },
+            )
+        )
+        loraConfig = Channel.default.loraConfig
+            .copy { modemPreset = ConfigProtos.Config.LoRaConfig.ModemPreset.SHORT_FAST }
+    }
+
+    private fun testScannedQrCodeDialog(
+        onDismiss: () -> Unit = {},
+        onConfirm: (ChannelSet) -> Unit = {},
+    ) = composeTestRule.setContent {
+        ScannedQrCodeDialog(
+            channels = channels,
+            incoming = incoming,
+            onDismiss = onDismiss,
+            onConfirm = onConfirm,
+        )
+    }
+
+    @Test
+    fun testScannedQrCodeDialog_showsCancelAddAndReplaceButtons() {
+        composeTestRule.apply {
+            testScannedQrCodeDialog()
+
+            onNodeWithText(getString(R.string.cancel)).assertIsDisplayed()
+            onNodeWithText(getString(R.string.add)).assertIsDisplayed()
+            onNodeWithText(getString(R.string.replace)).assertIsDisplayed()
+        }
+    }
+
+    @Test
+    fun testScannedQrCodeDialog_clickCancelButton() {
+        var onDismissClicked = false
+        composeTestRule.apply {
+            testScannedQrCodeDialog(onDismiss = { onDismissClicked = true })
+
+            // Click the "Cancel" button
+            onNodeWithText(getString(R.string.cancel)).performClick()
+        }
+
+        // Verify onDismiss is called
+        Assert.assertTrue(onDismissClicked)
+    }
+
+    @Test
+    fun testScannedQrCodeDialog_replaceChannels() {
+        var actualChannelSet: ChannelSet? = null
+        composeTestRule.apply {
+            testScannedQrCodeDialog(onConfirm = { actualChannelSet = it })
+
+            // Click the "Replace" button
+            onNodeWithText(getString(R.string.replace)).performClick()
+        }
+
+        // Verify onConfirm is called with the correct ChannelSet
+        Assert.assertEquals(incoming, actualChannelSet)
+    }
+
+    @Test
+    fun testScannedQrCodeDialog_addChannels() {
+        var actualChannelSet: ChannelSet? = null
+        composeTestRule.apply {
+            testScannedQrCodeDialog(onConfirm = { actualChannelSet = it })
+
+            // Click the "Add" button
+            onNodeWithText(getString(R.string.add)).performClick()
+        }
+
+        // Verify onConfirm is called with the correct ChannelSet
+        val expectedChannelSet = channels.copy {
+            settings.addAll(incoming.settingsList)
+        }
+        Assert.assertEquals(expectedChannelSet, actualChannelSet)
+    }
+}