diff --git a/tests/tools/test_qml b/tests/tools/test_qml
index 24d8d5cb5..256961ac4 100644
--- a/tests/tools/test_qml
+++ b/tests/tools/test_qml
@@ -7,6 +7,7 @@
 RESOURCES_FILE='resources.qrc'
 TEST_RUNNER='qmltestrunner-qt5'
 TEST_FILE_EXTENSION='spec.qml'
+MODULES_PATH='./ui/modules'
 
 RED='\e[1;31m'
 GREEN='\e[1;32m'
@@ -20,7 +21,7 @@ cd $SCRIPT_DIR/..
 printf "${BLUE}Testing scripts lib...${NC}\n"
 
 so_far_so_good=0
-$TEST_RUNNER -input './ui/scripts/Utils/utils.spec.qml'
+$TEST_RUNNER -import $MODULES_PATH -input './ui/scripts/Utils/utils.spec.qml'
 
 if [[ $? == 0 ]]; then
     printf "${GREEN}Done. No error found in scripts lib.\n"
@@ -42,7 +43,7 @@ do
 
         if [ -f $spec_qml_file ]; then
             printf "${BLUE}Running unit qml tests of '${qml_file}'...${NC}\n"
-            $TEST_RUNNER -import './ui/modules/' -input "$spec_qml_file"
+            $TEST_RUNNER -import $MODULES_PATH -input "$spec_qml_file"
 
             if [[ $? == 0 ]]; then
                 printf "${GREEN}All unit tests have succeeded for '${spec_qml_file}'.\n"
diff --git a/tests/ui/scripts/Utils/utils.js b/tests/ui/scripts/Utils/utils.js
index c4659d8d7..10100b262 100644
--- a/tests/ui/scripts/Utils/utils.js
+++ b/tests/ui/scripts/Utils/utils.js
@@ -48,12 +48,14 @@ function openWindow (window, parent, options) {
   }
 
   object.show()
+
+  return object
 }
 
 // Display a simple ConfirmDialog component.
 // Wrap the openWindow function.
 function openConfirmDialog (parent, options) {
-  openWindow(
+  return openWindow(
     'import QtQuick 2.7;' +
       'import Common 1.0;' +
       'ConfirmDialog {' +
diff --git a/tests/ui/scripts/Utils/utils.spec.qml b/tests/ui/scripts/Utils/utils.spec.qml
index aa95fe69e..2499423cc 100644
--- a/tests/ui/scripts/Utils/utils.spec.qml
+++ b/tests/ui/scripts/Utils/utils.spec.qml
@@ -12,6 +12,25 @@ TestCase {
 
   name: 'UtilsTests'
 
+  // Test only if a confirm dialog can be opened.
+  // The other tests are launched by `ConfirmDialog.spec.qml`.
+  function test_openConfirmDialog () {
+    var dialog
+
+    try {
+      dialog = Utils.openConfirmDialog(testCase, {
+        descriptionText: '',
+        title: ''
+      })
+    } catch (e) {
+      fail(e)
+    }
+
+    dialog.close()
+  }
+
+  // -----------------------------------------------------------------
+
   function test_snakeToCamel_data () {
     return [
       { input: 'foo_bar', output: 'fooBar' },