B u9agã@s˜dZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z dd„Z dd„Z dd„Z d d „Zdd d „Zd d„Zdd„Zedkr”eƒdS)añ Command line tool to bisect failing CPython tests. Find the test_os test method which alters the environment: ./python -m test.bisect_cmd --fail-env-changed test_os Find a reference leak in "test_os", write the list of failing tests into the "bisect" file: ./python -m test.bisect_cmd -o bisect -R 3:3 test_os Load an existing list of tests from a file using -i option: ./python -m test --list-cases -m FileTests test_os > tests ./python -m test.bisect_cmd -i tests test_os éNc Cs<t|dƒ(}x|D]}t||dqW| ¡WdQRXdS)NÚw)Úfile)ÚopenÚprintÚflush)ÚfilenameÚtestsÚfpÚname©r ú /usr/lib/python3.7/bisect_cmd.pyÚ write_testss  r cCs*|sdStdt|ƒ|fƒt||ƒ|S)NzWriting %s tests into %s)rÚlenr )rrr r r Ú write_output&s  rcCs d |¡S)Nú )Újoin)Úargsr r r Úformat_shell_args.srcCsftjdddg}| |j¡tj|tjdd}|j}|rXt|ƒ}t d||fƒt  |¡|j   ¡}|S)Nz-mÚtestz --list-casesT)ÚstdoutZuniversal_newlinesz1Failed to list tests: %s failed with exit code %s) ÚsysÚ executableÚextendÚ test_argsÚ subprocessÚrunÚPIPEÚ returncoderrÚexitrÚ splitlines)rÚcmdÚprocÚexitcoderr r r Ú list_cases2s    r#c Cslt ¡}zFt||ƒtjddd|g}| |j¡tdt|ƒƒt   |¡}|j St j  |¡rft  |¡XdS)Nz-mrz --matchfilez+ %s)ÚtempfileZmktempr rrrrrrrrrÚosÚpathÚexistsÚunlink)rrZ huntrleaksZtmpr r!r r r Ú run_testsBs    r)cCsft ¡}|jdddd|jdddd|jdd td d d |jd dtddd | ¡\}}||_|S)Nz-iz--inputzUTest names produced by --list-tests written into a file. If not set, run --list-tests)Úhelpz-oz--outputzResult of the bisectionz-nz --max-testséz:Maximum number of tests to stop the bisection (default: 1))ÚtypeÚdefaultr*z-Nz --max-iterédz5Maximum number of bisection iterations (default: 100))ÚargparseÚArgumentParserÚ add_argumentÚintÚparse_known_argsr)Úparserrrr r r Ú parse_argsQs   r5c Cs&tƒ}|jr2t|jƒ}dd„|Dƒ}WdQRXnt|ƒ}tdt|ƒƒtdt|jƒƒtd|j|j fƒt |j |ƒ}tƒt   ¡}d}yÆxÀt|ƒ|jkrP||j krPt|ƒ}t|ddƒ}t ||¡}td|t|ƒt|ƒfƒtƒt||ƒ}td |t|ƒfƒtd |ƒ|r8td ƒ|}t |j |ƒ}ntd ƒtƒ|d7}q’WWn*tk r~tƒtd ƒtƒYnXtdt|ƒƒx|D]} td| ƒq–Wtƒ|rÄtd|ƒt t   ¡|¡} t|ƒ|jkr td|tj| dfƒt d¡ntd|tj| dfƒdS)NcSsg|] }| ¡‘qSr )Ústrip)Ú.0Úliner r r ú jszmain..zStart bisection with %s testszTest arguments: %szxBisection will stop when getting %s or less tests (-n/--max-tests option), or after %s iterations (-N/--max-iter option)r+éz![+] Iteration %s: run %s tests/%szran %s tests/%srz*Tests failed: continuing with this subtestz;Tests succeeded: skipping this subtest, trying a new subsetzBisection interrupted!z Tests (%s):z* %szOutput written into %sz+Bisection completed in %s iterations and %s)Zsecondsz+Bisection failed after %s iterations and %s)r5Úinputrr#rrrrZ max_testsZmax_iterrÚoutputÚtimeZ monotonicÚmaxÚrandomZsampler)ÚKeyboardInterruptÚmathZceilÚdatetimeZ timedeltarr) rr rr<Z start_timeZ iterationZntestZsubtestsr"rZdtr r r Úmaines`         rCÚ__main__)N)Ú__doc__r/rBZos.pathr%rAr?rrr$r=r rrr#r)r5rCÚ__name__r r r r Ús$ A