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core/tests/base/mp_hashdirectory.test.sas

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SAS

/**
@file
@brief Testing mp_hashdirectory.sas macro
<h4> SAS Macros </h4>
@li mf_mkdir.sas
@li mf_nobs.sas
@li mp_assert.sas
@li mp_assertscope.sas
@li mp_hashdirectory.sas
**/
/* set up a directory to hash */
%let fpath=%sysfunc(pathname(work))/testdir;
%mf_mkdir(&fpath)
%mf_mkdir(&fpath/sub1)
%mf_mkdir(&fpath/sub2)
%mf_mkdir(&fpath/sub1/subsub)
/* note - the path in the file means the hash is different in each run */
%macro makefile(path,name);
data _null_;
file "&path/&name" termstr=lf;
put "This file is located at:";
put "&path";
put "and it is called:";
put "&name";
run;
%mend makefile;
%macro spawner(path);
%do x=1 %to 5;
%makefile(&path,file&x..txt)
%end;
%mend spawner;
%spawner(&fpath)
%spawner(&fpath/sub1)
%spawner(&fpath/sub1/subsub)
%mp_assertscope(SNAPSHOT)
%mp_hashdirectory(&fpath,outds=work.hashes,maxdepth=MAX)
%mp_assertscope(COMPARE)
%mp_assert(
iftrue=(&syscc=0),
desc=No errors,
outds=work.test_results
)
%mp_assert(
iftrue=(%mf_nobs(work.hashes)=19),
desc=record created for each entry,
outds=work.test_results
)
proc sql;
select count(*) into: misscheck
from work.hashes
where file_hash is missing;
%mp_assert(
iftrue=(&misscheck=1),
desc=Only one missing hash - the empty directory,
outds=work.test_results
)
data _null_;
set work.hashes;
if directory=file_path then call symputx('tophash',file_hash);
run;
%mp_assert(
iftrue=(%length(&tophash)=32),
desc=ensure valid top level hash created,
outds=work.test_results
)
/* now change a file and re-hash */
data _null_;
file "&fpath/sub1/subsub/file1.txt" termstr=lf;
put "This file has changed!";
run;
%mp_hashdirectory(&fpath,outds=work.hashes2,maxdepth=MAX)
data _null_;
set work.hashes2;
if directory=file_path then call symputx('tophash2',file_hash);
run;
%mp_assert(
iftrue=(&tophash ne &tophash2),
desc=ensure the changing of the hash results in a new value,
outds=work.test_results
)
/* now change it back and see if it matches */
data _null_;
file "&fpath/sub1/subsub/file1.txt" termstr=lf;
put "This file is located at:";
put "&fpath/sub1/subsub";
put "and it is called:";
put "file1.txt";
run;
run;
%mp_hashdirectory(&fpath,outds=work.hashes3,maxdepth=MAX)
data _null_;
set work.hashes3;
if directory=file_path then call symputx('tophash3',file_hash);
run;
%mp_assert(
iftrue=(&tophash=&tophash3),
desc=ensure the same files result in the same hash,
outds=work.test_results
)
/* dump contents for debugging */
data _null_;
set work.hashes;
put file_hash file_path;
run;
data _null_;
set work.hashes2;
put file_hash file_path;
run;
/* check that it works when the target directory is missing */
%mp_hashdirectory(&fpath/doesnotexist,outds=work.hashes3,maxdepth=MAX)
%mp_assert(
iftrue=(&syscc=0),
desc=No errors when directory is missing,
outds=work.test_results
)
%mp_assert(
iftrue=(%mf_nobs(work.hashes3)=0),
desc=no records created when directory is missing,
outds=work.test_results
)