Recently decided to upgrade my project to Kotlin Jupyter 0 1

Question

Recently decided to upgrade my project to Kotlin Jupyter 0 11 0 125 and although all the runtime code is still fine the test module that I m using in my unit tests kotlin jupyter test kit changed a lot Are there examples or documentation how to use it especially how to create in instance of `ReplForJupyterImpl` with its many parameters like `MutableNotebook` `RuntimeKernelProperties`

Ilya Muradyan · Answer

Hi Peter Sorry for that Just use `org jetbrains kotlinx jupyter repl creating createRepl` instead

Peter · Answer

Thanks just tried it and one step closer Remains the mandatory properties Right now I take a very simple approach ```runtimeProperties = RuntimeKernelProperties emptyMap ``` But then I get exceptions like ```java lang RuntimeException Current branch is not specified at org jetbrains kotlinx jupyter RuntimeKernelProperties getCurrentBranch config kt 73 at org jetbrains kotlinx jupyter ReplForJupyterImpl getCurrentBranch repl kt 193 at org jetbrains kotlinx jupyter ReplForJupyterImpl lt init gt repl kt 199 at org jetbrains kotlinx jupyter repl creating ReplFactory createRepl ReplFactory kt 18 ```

Ilya Muradyan · Answer

You may pass nothing there the default properties will be used then and it s enough Or you need some special properties

Ilya Muradyan · Answer

If you need to access runtime properties of created REPL use `runtimeProperties` property

Peter · Answer

I thought using the following statement would create empty properties ```runtimeProperties = RuntimeKernelProperties emptyMap ``` What would the correct way to create an empty instance of ReplRuntimeProperties that I can use as a parameter to the createRepl it is defined as non null

Ilya Muradyan · Answer

You need to specify at least three properties all the properties that throw exceptions if they re empty <https github com Kotlin kotlin jupyter blob 7146f1fdcd4bc5dacaab635c302b0a5497bcd1d1 src main kotlin org jetbrains kotlinx jupyter config kt L52> These properties are taken from resource file that is stored inside kernel JAR that s why you most likely wish to reuse them In this case just use `org jetbrains kotlinx jupyter defaultRuntimeProperties` Alternatively implement `ReplRuntimeProperties` interface and use this implementation

Peter · Answer

Thanks that indeed solved the second challenge and my notebook regression tests are running fine again slightly smiling face