diff --git a/.gitignore b/.gitignore
index 614a48c30..f9da0a919 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,3 +66,4 @@ captures/
 !/.idea/encodings.xml
 !/.idea/copyright/
 !/.idea/compiler.xml
+app/jacoco.exec
diff --git a/app/src/test/java/org/kiwix/kiwixmobile/language/viewmodel/LanguageViewModelTest.kt b/app/src/test/java/org/kiwix/kiwixmobile/language/viewmodel/LanguageViewModelTest.kt
index a48ae132d..bc19cbc44 100644
--- a/app/src/test/java/org/kiwix/kiwixmobile/language/viewmodel/LanguageViewModelTest.kt
+++ b/app/src/test/java/org/kiwix/kiwixmobile/language/viewmodel/LanguageViewModelTest.kt
@@ -27,8 +27,6 @@ import io.reactivex.schedulers.Schedulers
 import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.junit.jupiter.api.TestInstance
-import org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS
 import org.junit.jupiter.api.extension.ExtendWith
 import org.kiwix.kiwixmobile.core.dao.NewLanguagesDao
 import org.kiwix.kiwixmobile.core.zim_manager.Language
@@ -49,7 +47,6 @@ fun languageItem(language: Language = language()) =
   LanguageListItem.LanguageItem(language)
 
 @ExtendWith(InstantExecutorExtension::class)
-@TestInstance(PER_CLASS)
 class LanguageViewModelTest {
   init {
     setScheduler(Schedulers.trampoline())
diff --git a/app/src/test/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModelTest.kt b/app/src/test/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModelTest.kt
index 5a3e7e3f7..f4bd49d33 100644
--- a/app/src/test/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModelTest.kt
+++ b/app/src/test/java/org/kiwix/kiwixmobile/zim_manager/ZimManageViewModelTest.kt
@@ -32,8 +32,6 @@ import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
-import org.junit.jupiter.api.TestInstance
-import org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS
 import org.junit.jupiter.api.extension.ExtendWith
 import org.kiwix.kiwixmobile.core.R
 import org.kiwix.kiwixmobile.core.StorageObserver
@@ -69,7 +67,6 @@ import java.util.concurrent.TimeUnit.MILLISECONDS
 import java.util.concurrent.TimeUnit.SECONDS
 
 @ExtendWith(InstantExecutorExtension::class)
-@TestInstance(PER_CLASS)
 class ZimManageViewModelTest {
 
   private val downloadDao: FetchDownloadDao = mockk()
diff --git a/app/src/test/resources/io/mockk/settings.properties b/app/src/test/resources/io/mockk/settings.properties
new file mode 100644
index 000000000..34c414161
--- /dev/null
+++ b/app/src/test/resources/io/mockk/settings.properties
@@ -0,0 +1 @@
+relaxUnitFun=true
diff --git a/app/src/test/resources/junit-platform.properties b/app/src/test/resources/junit-platform.properties
new file mode 100644
index 000000000..2af5bf864
--- /dev/null
+++ b/app/src/test/resources/junit-platform.properties
@@ -0,0 +1 @@
+junit.jupiter.testinstance.lifecycle.default=per_class
diff --git a/app/src/test/resources/wikipedia_af_all_nopic_2016-05.zim.meta4 b/app/src/test/resources/wikipedia_af_all_nopic_2016-05.zim.meta4
new file mode 100644
index 000000000..b4034da89
--- /dev/null
+++ b/app/src/test/resources/wikipedia_af_all_nopic_2016-05.zim.meta4
@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<metalink xmlns="urn:ietf:params:xml:ns:metalink">
+  <generator>MirrorBrain/2.18.1</generator>
+  <origin dynamic="true">http://download.kiwix.org/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim.meta4</origin>
+  <published>2016-06-08T08:59:18Z</published>
+  <publisher>
+    <name>Kiwix project</name>
+    <url>http://www.kiwix.org</url>
+  </publisher>
+
+  <file name="wikipedia_af_all_nopic_2016-05.zim">
+    <size>63973123</size>
+
+    <!-- <mtime>1462622396</mtime> -->
+
+    <!-- internal id: 756021 -->
+    <hash type="md5">6f06866b61c4a921b57f28cfd4307220</hash>
+    <hash type="sha-1">8aac4c7f89e3cdd45b245695e19ecde5aac59593</hash>
+    <hash type="sha-256">83126775538cf588a85edb10db04d6e012321a2025278a08a084b258849b3a5c</hash>
+    <pieces length="1048576" type="sha-1">
+      <hash>f36815d904d4fd563aaef4ee6ef2600fb1fd70b2</hash>
+      <hash>cd34a8a85ed1dd275417ce224ff0cd8d9893d101</hash>
+      <hash>7702114faf59441937c9075ad695fad61cdb13f3</hash>
+      <hash>532553bfb04c870375a53368b17838e50b169ab8</hash>
+      <hash>fcda3eba296502965015ef3f07b05adeb4d95dfc</hash>
+      <hash>97af1a7b1327a6f13dfc63524c63077c4aaa1278</hash>
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+    </pieces>
+
+
+    <!-- Found 7 mirrors: 0 in the same network prefix, 0 in the same autonomous system,
+         0 handling this country, 0 in the same region, 5 elsewhere -->
+
+    <!-- Mirrors in the same network (unknown): -->
+
+    <!-- Mirrors in the same AS (unknown): -->
+
+    <!-- Mirrors which handle this country (unknown): -->
+
+    <!-- Mirrors in the same continent (unknown): -->
+
+    <!-- Mirrors in the rest of the world: -->
+    <url location="us" priority="1">http://ftpmirror.your.org/pub/kiwix/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim</url>
+    <url location="gb" priority="2">http://www.mirrorservice.org/sites/download.kiwix.org/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim</url>
+    <url location="us" priority="3">http://download.wikimedia.org/kiwix/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim</url>
+    <url location="de" priority="4">http://mirror.netcologne.de/kiwix/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim</url>
+    <url location="fr" priority="5">http://mirror3.kiwix.org/zim/wikipedia/wikipedia_af_all_nopic_2016-05.zim</url>
+  </file>
+</metalink>