inline object instantiation

[resu-xuniL]

Hello,
@mk-mxp: I saw that you change StateOfTicTacToeTest to inline object instantiation (#1020)
(I think this is studient oriented)
I checked all the exercices and found 16 others with setUp() methods (some are public, some are protected).

Here is the list:

Exercices	PR	Merged
HouseTest KillerSudokuHelperTest KnapsackTest MicroBlogTest	#1029	[x]
ProteinTranslationTest ProverbTest ResistorColorDuoTest ResistorColorTrioTest	#1030	[x]
RobotNameTest SecretHandshakeTest SpiralMatrixTest StrainTest	#1031	[x]
SublistTest TwelveDaysTest YachtTest ZebraPuzzleTest	#1032	[x]

If you wish to inline all of them, I can manage to do it.

[mk-mxp]

Hmm, yes. Go for it. Group 4 exercises into one PR, please.

[resu-xuniL]

(Once again, I add github handle on the last commits in case you consider to drop them.)

[mk-mxp]

Thank you! Can you close this issue by yourself? Or do you have no rights to do so?

[resu-xuniL]

You're welcome!