Updated test_add_projectfile_direct function is test_sketch.py file.

This function tests that new file can be added to project using create-new-file field.

Author: konstantina

tests/common/sketch/test_sketch.py

@@ -112,7 +112,21 @@ def test_add_projectfile_direct(self):
         """ Tests that new file can be added to project using create-new-file
         field """
         self.open_project()
-
+        WebDriverWait(self.driver, VERIFY_TIMEOUT).until(
+            expected_conditions.visibility_of_element_located(
+                (By.CSS_SELECTOR, "#editor-loading-screen")
+                )
+            )
+        WebDriverWait(self.driver, VERIFY_TIMEOUT).until(
+            expected_conditions.invisibility_of_element_located(
+                (By.CSS_SELECTOR, "#editor-loading-screen")
+                )
+            )
+        WebDriverWait(self.driver, VERIFY_TIMEOUT).until(
+            expected_conditions.element_to_be_clickable(
+                (By.CSS_SELECTOR, "#newfile")
+            )
+        )
         add_button = self.get_element(By.ID, 'newfile')
         add_button.click()
         WebDriverWait(self.driver, VERIFY_TIMEOUT).until(
@@ -160,4 +174,4 @@ def test_verify_deletion(self):
         )
 
     def test_remove_sketch(self):
-        self.delete_project(TEST_PROJECT_NAME)
+        self.delete_project(TEST_PROJECT_NAME)