入門ミューテーションテスト/ A bigginer's guide to Mutation testing

Slide 1

Slide 1 text

PHPΧϯϑΝϨϯεԭೄ 2019 ٢ా͋ͻΔ (@strtyuu) ೖ໳ϛϡʔςʔγϣϯςετ

Slide 2

Slide 2 text

ࣗݾ঺հ ٢ా͋ͻΔ !TUSUZVV τΡΪϟολʔגࣜձࣾ 4PGUXBSF&OHJOFFS

Slide 3

Slide 3 text

$VSBUJPO$PNNVOJDBUJPO1MBUGPSN IUUQTUPHFUUFSDPN ·ͱΊΑ͏ɺ͋ͭ·Ζ͏

Slide 4

Slide 4 text

ςετॻ͍ͯ·͔͢ʁ

Slide 5

Slide 5 text

lྑ͍zςετॻ͍ͯ·͔͢ʁ

Slide 6

Slide 6 text

ྑ͍ςετͬͯԿͩΖ͏ ɾಡΊ͹Ϋϥεͷ࢓༷͕Θ͔Δʁ ɾόά͕ൃੜ͠ͳ͍͜ͱΛอূͯ͘͠ΕΔʁ ɾ։ൃͷϦζϜΛ࡞ͬͯ͘ΕΔʁ 5%% ɾFUD

Slide 7

Slide 7 text

ྑ͍ςετͬͯԿͩΖ͏ ɾಡΊ͹Ϋϥεͷ࢓༷͕Θ͔Δʁ ɾόά͕ൃੜ͠ͳ͍͜ͱΛอূͯ͘͠ΕΔʁ ɾ։ൃͷϦζϜΛ࡞ͬͯ͘ΕΔʁ 5%% ɾFUD

Slide 8

Slide 8 text

Ͳ͏΍ͬͯ֬ೝ͢Δʜʜʁ ɾڧ͍ΤϯδχΞʹϨϏϡʔͯ͠΋Β͏ʁ ɾΧόϨοδΛʹ͢Δʁ

Slide 9

Slide 9 text

Ͳ͏΍ͬͯ֬ೝ͢Δʜʜʁ ɾڧ͍ΤϯδχΞʹϨϏϡʔͯ͠΋Β͏ʁ ɾΧόϨοδΛʹ͢Δʁ

Slide 10

Slide 10 text

ϛϡʔςʔγϣϯςετ Λ࢖͓͏

Slide 11

Slide 11 text

ϛϡʔςʔγϣϯςετͱ͸

Slide 12

Slide 12 text

ςετ ΞϓϦέʔγϣϯ ඼࣭Λอূ

Slide 13

Slide 13 text

ϛϡʔςʔγϣϯςετ ςετ ΞϓϦέʔγϣϯ ඼࣭Λอূ ඼࣭Λอূ

Slide 14

Slide 14 text

Ͳ͏΍͍ͬͯΔͷ͔ ɾΞϓϦέʔγϣϯίʔυΛมҟͤ͞ɺ࠶౓ς ετΛ࣮ߦ͢Δ͜ͱͰςετͷਖ਼౰ੑΛධՁ͢ Δ

Slide 15

Slide 15 text

IUUQTHJUIVCDPNJOGFDUJPOJOGFDUJPO

Slide 16

Slide 16 text

ɾ'VODUJPO4JHOBUVSF ɾ6OXSBQ'VODUJPO ɾ#JOBSZ"SJUINFUJD ɾ3PVOE'BNJMZ ɾ#PPMFBO4VCTUJUVUJPO ɾ$POEJUJPOBM#PVOEBSJFT ɾ&RVBMPS*EFOUJDBM$IFDLT ɾ/FHBUFE$POEJUJPOBMT ɾ0QFSBUPS ɾ*ODSFNFOUT ɾ3FUVSO7BMVFT ɾ3FNPWBM.VUBUPST ɾ-PPQ ɾ4PSUJOH ɾ-JUFSBM/VNCFST ɾ&YDFQUJPOT ɾ5ZQF$BTUJOH ɾ3FHFY ɾ&YUFOTJPOT

Slide 17

Slide 17 text

$a = array_filter([‘A’, 3, ‘C’], ‘is_int’); $a = [‘A’, 3, ‘C’];

Slide 18

Slide 18 text

$a < $b $a <= $b $a >= $b

Slide 19

Slide 19 text

try {} catch (\Exception $e) {} finally {} try {} catch (\Exception $e) {}

Slide 20

Slide 20 text

Slide 21

Slide 21 text

Slide 22

Slide 22 text

%&.0

Slide 23

Slide 23 text

ϛϡʔςʔγϣϯςετ  ׆༻͍͖ͯ͠·͠ΐ͏ʂ