Added RETRY-UNTIL-TEST-PASS directive

[pavolbetak]

This branch adds a new RETRY-UNTIL-TEST-PASS directive to TeaPie that allows HTTP requests to be retried until a specific test passes.

Key Features Added:

New Directive:

1. RETRY-UNTIL-TEST-PASS - Retries HTTP requests until a named test passes

Architecture Changes:

1. Split testing responsibilities into IRegistrator (for registering tests) and ITester (for executing tests)
2. Tests are now registered during script execution and executed separately
3. Added synchronous test execution for use in retry logic

Core Implementation:

1. New parser: RetryUntilTestPassDirectiveLineParser.cs
2. Enhanced retry pipeline to check test results in addition to status codes
3. Modified test execution flow to support deferred test execution

Demo/Examples:

1. Added comprehensive test scenarios in demo/Tests/002-Cars/003-Check-Car-*.{http,csx}
2. Shows 3 scenarios: eventual success, exceeding max attempts, and combined retry conditions

Close #58

[bakosk]

naozaj si toto chcel zmazat?

[pavolbetak]

Problem je, ze ked chces precitat testy, tak musis executnut ten subor a vzhladom na toto, ze toto je mimo tych tp.Test, tak sa to hned odpali a premaze variables (toto sa deje pri nacitami testov, nie spusteny) a potom ked dojde na spustenie, tak niektore tie variables chybaju a padne to.

[pavolbetak]

Bude treba odstranit aj referenciu #load "$teapie/ClearVariables.csx"

[bakosk]

V popise je napisane ze si rozdelil ITester a IRegistrator, ale tento subor je zmazany a pomizol aj z kodu (ApplicationBuilder napr). neviem ci je len popis zly alebo sa to nemalo mazat

[bakosk]

aha tak uz vidim ze toje v Tester.cs, ok :)

[pavolbetak]

ITester (povodny) sa rozdelil v na IRegistrator a ITester, IRegistrator executne script a vytiahne z neho testy, ITester sa potom stara o ich spustenie

[Burgyn]

Možno to tam je, ale nikde som si to explicitne nevšimol: očakávam, že keď do tej direktívy zadám názov neexistujúceho testu tak mi to padne na nejakej explicitnej exception. Dôvod je taký, že tým že sú to strings tak sa človek môže preklepnúť, tak nech sa o tom dozvie že tam dal niečo čo nebude vlastne fungovať.

[Burgyn]

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