Programmatic skip

[PiotrNestor]

Add SkipScenarioException to be used for programmatically skipping remaining scenario execution.

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[sriv]

I don't mind this design of raising an exception to skip a scenario. But I wanted to suggest that an explicit API that can be a function call may also be considered.

Ex: Gauge.SkipCurrentScenario() similar to Gauge.WriteMessage()

What do you think @PiotrNestor ?

[PiotrNestor]

@sriv
We're aiming for simplicity and minimal additions.
With the exception approach there is only one exception definition in the library. In the dotnet language runner the SkipScenarioException is handled in the existing flow of scenario hook and step execution where the skip is indicated back to the gauge runner in the Execution result via the 'skipScenario' in ProtoExecutionResult. Yo can check the dotnet runner updates here: https://github.com/system-verification/gauge-dotnet/tree/programmatic-skip-scenario in HookExecutor.cs, StepExecutor.cs

What would be the execution flow with the Gauge.SkipCurrentScenario() approach? Sounds more complex to implement !?

[sriv]

I am going to merge this, since I don't have a huge preference here. In any case, we can always include support for a Skip scenario function when we need more context around it.