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fix: avoid open file handle when the variable to find is not provided (in mf_existvar)

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Includes a test that was failing and is now passing
This commit is contained in:
allan
2023-04-05 15:29:53 +01:00
parent 7471bd42a4
commit 32dd057e83
3 changed files with 36 additions and 8 deletions
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12
all.sas
View File

@@ -312,13 +312,17 @@ https://github.com/yabwon/SAS_PACKAGES/blob/main/packages/baseplus.md#functionex
%local dsid rc;
%let dsid=%sysfunc(open(&libds,is));
%if &dsid=0 or %length(&var)=0 %then %do;
%if &dsid=0 %then %do;
%put %sysfunc(sysmsg());
0
0
%end;
%else %if %length(&var)=0 %then %do;
0
%let rc=%sysfunc(close(&dsid));
%end;
%else %do;
%sysfunc(varnum(&dsid,&var))
%let rc=%sysfunc(close(&dsid));
%sysfunc(varnum(&dsid,&var))
%let rc=%sysfunc(close(&dsid));
%end;
%mend mf_existvar;

12
base/mf_existvar.sas
View File

@@ -25,13 +25,17 @@
%local dsid rc;
%let dsid=%sysfunc(open(&libds,is));
%if &dsid=0 or %length(&var)=0 %then %do;
%if &dsid=0 %then %do;
%put %sysfunc(sysmsg());
0
0
%end;
%else %if %length(&var)=0 %then %do;
0
%let rc=%sysfunc(close(&dsid));
%end;
%else %do;
%sysfunc(varnum(&dsid,&var))
%let rc=%sysfunc(close(&dsid));
%sysfunc(varnum(&dsid,&var))
%let rc=%sysfunc(close(&dsid));
%end;
%mend mf_existvar;

20
tests/base/mf_existvar.test.sas
View File

@@ -18,3 +18,23 @@
iftrue=(%mf_existvar(sashelp.class,isjustanumber)=0),
desc=Checking non existing var does not exist
)
data work.lockcheck;
a=1;
output;
stop;
run;
%mp_assert(
iftrue=(%mf_existvar(work.lockcheck,)=0),
desc=Checking non-provided var does not exist
)
proc sql;
update work.lockcheck set a=2;
%mp_assert(
iftrue=(&syscc=0),
desc=Checking the lock was released,
outds=work.test_results
)