Finally I found the solution how to import all 1843 Test Cases automatically via tool from the article mention in the question.
Our test-cases were migrated to the cloud Jira as usual tickets. They have no Test Steps but have all other information like Description, Labels and other which relate to Jira fields. Further I will show how to migrate all steps to the migrated Test Cases without steps.
Go to your Jira and Export Test Cases that you need to Excel file. It can be done from this screen
https://zephyrdocs.atlassian.net/wiki/spaces/ZTD/pages/12386325/Search+Test+Executions
Download .jar file from the
https://bitbucket.org/zfjdeveloper/zfj-importer/downloads/
In cmd run this jar file via command java -jar zfj-importer-utility-0.40.jar
I tried to run jar file by double click, application opens but after configuration and press button Start Import nothing happens.
Only after opening from cmd everything works.
Plus in cmd you can see progress and error details which will help you in debug.
Configure utility as in documentation https://bitbucket.org/zfjdeveloper/zfj-importer/wiki/Home
At this point I though that after pressing Start Import everything will be perfect, but no.
In console I found a lot of error, their reason was a lot of line breaks inside test steps.
Lets say you have one step with one row in Step field, one row In Test Data field but in Execution result field you have text with line breaks, lets say 4 rows. For this case in excel Execution result field will be 4 different columns, Step field and Test Data as one merged column.
And based on utility rules there impossible to have result without step. (such issue can be if you have line break in Step field and Test Data).
Below I will show how I handle it.
I decided to write Excel function which will get rows from not merged rows for one step, concatenate them and provide to import.
Excuse me for my VBA, I have never use it before. Everything that I wrote can be rewritten in better way and in one script, but it works for me and I do not want to spend time more on this issue, so let go.
Below you can find 4 excel function. 3 of them are quite similar and difference is only in one letter. Last scrip is for deleting empty rows which were concatenated, without it steps with value "null" will be created.
Public Const lastTableRow = 3872
Function ConvertSteps()
Dim callerRow As Long
Dim isValueInStepId As Boolean
Dim isNoValueInNextStepId As Boolean
Dim result As String
Dim baseColumnLetter As String
Dim stepIdColumnLetter As String
callerRow = Application.Caller.row
baseColumnLetter = "S"
stepIdColumnLetter = "Q"
Debug.Print "processed row is: " & callerRow
isValueInStepId = (Range(stepIdColumnLetter & callerRow).Value <> "")
isNoValueInNextStepId = (Range(stepIdColumnLetter & (callerRow + 1)).Value = "")
If isValueInStepId And isNoValueInNextStepId Then
Dim i As Integer
i = 1
result = Range(baseColumnLetter & callerRow).Value
Do While Range(stepIdColumnLetter & (callerRow + i)).Value = "" And (callerRow + i) <= lastTableRow
result = result & " " & Range(baseColumnLetter & (callerRow + i)).Value
i = i + 1
Loop
ConvertSteps = result
Else
If Range(baseColumnLetter & (callerRow)).Value = "" Then
ConvertSteps = ""
Else
ConvertSteps = Range(baseColumnLetter & (callerRow)).Value
End If
End If
End Function
Function ConvertTestData()
Dim callerRow As Long
Dim isValueInStepId As Boolean
Dim isNoValueInNextStepId As Boolean
Dim result As String
Dim baseColumnLetter As String
Dim stepIdColumnLetter As String
callerRow = Application.Caller.row
baseColumnLetter = "T"
stepIdColumnLetter = "Q"
Debug.Print "processed row is: " & callerRow
isValueInStepId = (Range(stepIdColumnLetter & callerRow).Value <> "")
isNoValueInNextStepId = (Range(stepIdColumnLetter & (callerRow + 1)).Value = "")
If isValueInStepId And isNoValueInNextStepId Then
Dim i As Integer
i = 1
result = Range(baseColumnLetter & callerRow).Value
Do While Range(stepIdColumnLetter & (callerRow + i)).Value = "" And (callerRow + i) <= lastTableRow
result = result & " " & Range(baseColumnLetter & (callerRow + i)).Value
i = i + 1
Loop
ConvertTestData = result
Else
If Range(baseColumnLetter & (callerRow)).Value = "" Then
ConvertTestData = ""
Else
ConvertTestData = Range(baseColumnLetter & (callerRow)).Value
End If
End If
End Function
Function ConvertResult()
Dim callerRow As Long
Dim isValueInStepId As Boolean
Dim isNoValueInNextStepId As Boolean
Dim result As String
Dim baseColumnLetter As String
Dim stepIdColumnLetter As String
callerRow = Application.Caller.row
baseColumnLetter = "U"
stepIdColumnLetter = "Q"
Debug.Print "processed row is: " & callerRow
isValueInStepId = (Range(stepIdColumnLetter & callerRow).Value <> "")
isNoValueInNextStepId = (Range(stepIdColumnLetter & (callerRow + 1)).Value = "")
If isValueInStepId And isNoValueInNextStepId Then
Dim i As Integer
i = 1
result = Range(baseColumnLetter & callerRow).Value
Do While Range(stepIdColumnLetter & (callerRow + i)).Value = "" And (callerRow + i) <= lastTableRow
result = result & " " & Range(baseColumnLetter & (callerRow + i)).Value
i = i + 1
Loop
ConvertResult = result
Else
If Range(baseColumnLetter & (callerRow)).Value = "" Then
ConvertResult = ""
Else
ConvertResult = Range(baseColumnLetter & (callerRow)).Value
End If
End If
End Function
Public Sub DeleteBlankRows()
Dim SourceRange As Range
Dim EntireRow As Range
Set SourceRange = Range("Q1", "Q" & lastTableRow)
If Not (SourceRange Is Nothing) Then
Application.ScreenUpdating = False
For i = SourceRange.Rows.Count To 1 Step -1
Set EntireRow = SourceRange.Cells(i, 1).EntireRow
Debug.Print SourceRange.Cells(i, 1).Value
If SourceRange.Cells(i, 1).Value = 0 Then
EntireRow.Delete
End If
Next
Application.ScreenUpdating = True
End If
End Sub
Let's open Excel file and save it in .xlsm format to apply custom functions.
Import functions to Excel
in the top of the code set in variable lastTableRow last row with Test Case step in your Excel.
Now we need 3 new columns to save transferred Step, Test Data and Result fields. For this purpose we can use last column Comments, copy and past it two times. Now we have 3 empty column W, X, Y for our purpose.
For all rows in column W apply formula =ConvertSteps() to agregate steps (it can take some time)
For all rows in column X apply formula =ConvertTestData() to agregate test data (it can take some time)
For all rows in column Y apply formula =ConvertResult() to agregate results (it can take some time)

Now we have to convert values in new columns from formula to their string value. To do it select all table and press Ctrl+C. Then press right button and choose past values.
Run DeleteBlankRows macros to delete all rows that we do not need to import.
Save file in .xml format.
Choose this file in Utility and press Start Import
In cmd you can see a few errors. In my case they were releted to situation when there is no step description but there is expected result. If they are quite seldom as in my case, it's easier to change it mannualy in Execel file. If there a lot of them you can handle this case in custom function.

So thats it, this solution helped me to import 1800+ Test Cases.
I have exported them partially, by 500 and for me it takes about 3 hour to import all Test Cases.