Example test runner: make script more readable / ensure examples do not process.exit

[jochem-brouwer]

The examples test runner tries to run each example in a package, and if one of them throws, the npm run examples will fail (and will also throw on CI). However, some examples have process.exit, if this is hit, the process exits with a successful code and any errors which might have thrown could be discarded (depending if the error gets handled first, or the process.exit)

[acolytec3]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.

Project coverage is 40.75%. Comparing base (4470cc3) to head (659d428).
Report is 4 commits behind head on master.

Additional details and impacted files

Flag	Coverage Δ
block	71.90% <ø> (-1.55%)	⬇️
blockchain	84.92% <ø> (?)
client	?
common	89.68% <ø> (?)
devp2p	0.00% <ø> (?)
evm	64.28% <ø> (?)
genesis	0.00% <ø> (?)
statemanager	65.93% <ø> (?)
trie	52.02% <ø> (?)
tx	?
util	69.89% <ø> (?)
vm	58.77% <0.00%> (?)
wallet	?

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[holgerd77]

Just to confirm: so this is really no problem on my side (regarding examples creation or whatever)! 🙂