Add unit test on UtdTracker

libraries/matrix/impl/build.gradle.kts

@@ -53,6 +53,7 @@ dependencies {
     testImplementation(libs.test.junit)
     testImplementation(libs.test.truth)
     testImplementation(projects.libraries.matrix.test)
+    testImplementation(projects.services.analytics.test)
     testImplementation(libs.coroutines.test)
     testImplementation(libs.test.turbine)
 }

libraries/matrix/impl/src/test/kotlin/io/element/android/libraries/matrix/impl/analytics/UtdTrackerTest.kt

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2024 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.matrix.impl.analytics
+
+import com.google.common.truth.Truth.assertThat
+import im.vector.app.features.analytics.plan.Error
+import io.element.android.libraries.matrix.test.AN_EVENT_ID
+import io.element.android.services.analytics.test.FakeAnalyticsService
+import org.junit.Test
+import org.matrix.rustcomponents.sdk.UnableToDecryptInfo
+
+class UtdTrackerTest {
+    @Test
+    fun `when onUtd is called with null timeToDecryptMs, the expected analytics Event is sent`() {
+        val fakeAnalyticsService = FakeAnalyticsService()
+        val sut = UtdTracker(fakeAnalyticsService)
+        sut.onUtd(UnableToDecryptInfo(eventId = AN_EVENT_ID.value, timeToDecryptMs = null))
+        assertThat(fakeAnalyticsService.capturedEvents).containsExactly(
+            Error(
+                context = null,
+                cryptoModule = Error.CryptoModule.Rust,
+                cryptoSDK = Error.CryptoSDK.Rust,
+                timeToDecryptMillis = -1,
+                domain = Error.Domain.E2EE,
+                name = Error.Name.OlmKeysNotSentError
+            )
+        )
+    }
+
+    @Test
+    fun `when onUtd is called with timeToDecryptMs, the expected analytics Event is sent`() {
+        val fakeAnalyticsService = FakeAnalyticsService()
+        val sut = UtdTracker(fakeAnalyticsService)
+        sut.onUtd(UnableToDecryptInfo(eventId = AN_EVENT_ID.value, timeToDecryptMs = 123.toULong()))
+        assertThat(fakeAnalyticsService.capturedEvents).containsExactly(
+            Error(
+                context = null,
+                cryptoModule = Error.CryptoModule.Rust,
+                cryptoSDK = Error.CryptoSDK.Rust,
+                timeToDecryptMillis = 123,
+                domain = Error.Domain.E2EE,
+                name = Error.Name.OlmKeysNotSentError
+            )
+        )
+    }
+}