diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10460860c..31ef2cad9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 - macOS menu: device list now shows connected nodes only.
 - iOS node: fix ReplayKit screen recording crash caused by queue isolation assertions during capture.
 - CLI: avoid spurious gateway close errors after successful request/response cycles.
+- Tests: add Swift Testing coverage for camera errors and Kotest coverage for Android bridge endpoints.
 
 ## 2.0.0-beta4 — 2025-12-27
 
diff --git a/apps/android/app/build.gradle.kts b/apps/android/app/build.gradle.kts
index c2f1cd817..1b353d83f 100644
--- a/apps/android/app/build.gradle.kts
+++ b/apps/android/app/build.gradle.kts
@@ -93,4 +93,11 @@ dependencies {
 
   testImplementation("junit:junit:4.13.2")
   testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:1.10.2")
+  testImplementation("io.kotest:kotest-runner-junit5-jvm:6.0.7")
+  testImplementation("io.kotest:kotest-assertions-core-jvm:6.0.7")
+  testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.13.3")
+}
+
+tasks.withType<Test>().configureEach {
+  useJUnitPlatform()
 }
diff --git a/apps/android/app/src/test/java/com/steipete/clawdis/node/bridge/BridgeEndpointKotestTest.kt b/apps/android/app/src/test/java/com/steipete/clawdis/node/bridge/BridgeEndpointKotestTest.kt
new file mode 100644
index 000000000..5e1b09490
--- /dev/null
+++ b/apps/android/app/src/test/java/com/steipete/clawdis/node/bridge/BridgeEndpointKotestTest.kt
@@ -0,0 +1,14 @@
+package com.steipete.clawdis.node.bridge
+
+import io.kotest.core.spec.style.StringSpec
+import io.kotest.matchers.shouldBe
+
+class BridgeEndpointKotestTest : StringSpec({
+  "manual endpoint builds stable id + name" {
+    val endpoint = BridgeEndpoint.manual("10.0.0.5", 18790)
+    endpoint.stableId shouldBe "manual|10.0.0.5|18790"
+    endpoint.name shouldBe "10.0.0.5:18790"
+    endpoint.host shouldBe "10.0.0.5"
+    endpoint.port shouldBe 18790
+  }
+})
diff --git a/apps/ios/Tests/CameraControllerErrorTests.swift b/apps/ios/Tests/CameraControllerErrorTests.swift
new file mode 100644
index 000000000..3b3c94281
--- /dev/null
+++ b/apps/ios/Tests/CameraControllerErrorTests.swift
@@ -0,0 +1,13 @@
+import Testing
+@testable import Clawdis
+
+@Suite struct CameraControllerErrorTests {
+    @Test func errorDescriptionsAreStable() {
+        #expect(CameraController.CameraError.cameraUnavailable.errorDescription == "Camera unavailable")
+        #expect(CameraController.CameraError.microphoneUnavailable.errorDescription == "Microphone unavailable")
+        #expect(CameraController.CameraError.permissionDenied(kind: "Camera").errorDescription == "Camera permission denied")
+        #expect(CameraController.CameraError.invalidParams("bad").errorDescription == "bad")
+        #expect(CameraController.CameraError.captureFailed("nope").errorDescription == "nope")
+        #expect(CameraController.CameraError.exportFailed("export").errorDescription == "export")
+    }
+}