diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index c5871cc..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/ScienceQuest.iml" filepath="$PROJECT_DIR$/.idea/ScienceQuest.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/android/app/src/test/java/fr/iut/sciencequest/testRules/MainDispatcherRule.kt b/android/app/src/test/java/fr/iut/sciencequest/testRules/MainDispatcherRule.kt
new file mode 100644
index 0000000..e571a61
--- /dev/null
+++ b/android/app/src/test/java/fr/iut/sciencequest/testRules/MainDispatcherRule.kt
@@ -0,0 +1,24 @@
+package fr.iut.sciencequest.testRules
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestDispatcher
+import kotlinx.coroutines.test.UnconfinedTestDispatcher
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.setMain
+import org.junit.rules.TestWatcher
+import org.junit.runner.Description
+
+// simule le dispatcheurs utilisé par les ViewModels
+@OptIn(ExperimentalCoroutinesApi::class)
+class MainDispatcherRule(
+    private val testDispatcher: TestDispatcher = UnconfinedTestDispatcher()
+) : TestWatcher() {
+    override fun starting(description: Description) {
+        Dispatchers.setMain(testDispatcher)
+    }
+
+    override fun finished(description: Description) {
+        Dispatchers.resetMain()
+    }
+}
\ No newline at end of file