YDA-5894: add empty checksum report UI tests

Co-authored-by: Lazlo Westerhof <l.r.westerhof@uu.nl>

tests/features/ui/ui_research.feature

@@ -176,6 +176,21 @@ Feature: Research UI
             | research-initial | ui_test_overwrite | ui_test_copy |
 
 
+    Scenario Outline: Checksum report of added empty folder
+        Given user researcher is logged in
+        And module "research" is shown
+        When user browses to folder <folder>
+        And user adds a new folder <folder_new>
+        And user browses to subfolder <folder_new>
+        And user open checksum report
+        Then user cannot download <format> checksum report
+
+        Examples:
+            | folder           | folder_new                | format |
+            | research-initial | ui_test_empty_checksum1   | csv    |
+            | research-initial | ui_test_empty_checksum2   | txt    |
+
+
     Scenario Outline: Deleting a folder
         Given user researcher is logged in
         And module "research" is shown
@@ -188,7 +203,8 @@ Feature: Research UI
             | research-initial | ui_test_folder1_renamed |
             | research-initial | ui_test_folder2_renamed |
             | research-initial | ui_test_copy            |
-
+            | research-initial | ui_test_empty_checksum1 |
+            | research-initial | ui_test_empty_checksum2 |
 
     Scenario Outline: Multi-select moving files / folder
         Given user researcher is logged in

tests/step_defs/ui/test_ui_research.py

@@ -14,6 +14,7 @@
     then,
     when,
 )
+from splinter.exceptions import ElementDoesNotExist
 
 scenarios('../../features/ui/ui_research.feature')
 
@@ -307,3 +308,12 @@ def ui_research_checksum_report_downloaded(browser, tmpdir, format):
             return
 
     raise AssertionError()
+
+
+@then(parsers.parse("user cannot download {format} checksum report"))
+def ui_research_empty_checksum_report_not_downloaded(browser, format):
+    try:
+        el = "a.download-report-csv" if format == "csv" else "a.download-report-text"
+        browser.find_by_css(el)
+    except ElementDoesNotExist:
+        assert True, "The Download as {format} button is not present as expected."