fix: adding (and fixing) tests for ms_* macro suite

tests/serveronly/ms_createuser.test.sas

@@ -0,0 +1,50 @@
+/**
+  @file
+  @brief Testing ms_createuser.sas macro
+
+  <h4> SAS Macros </h4>
+  @li mf_getuniquename.sas
+  @li mp_assert.sas
+  @li mp_assertscope.sas
+  @li ms_createuser.sas
+  @li ms_getusers.sas
+
+**/
+
+%let user=%substr(%mf_getuniquename(),1,8);
+
+%mp_assertscope(SNAPSHOT)
+%ms_createuser(&user,passwrd,outds=test1,mdebug=&sasjs_mdebug)
+%mp_assertscope(COMPARE
+  ,ignorelist=MCLIB0_JADP1LEN MCLIB0_JADPNUM MCLIB0_JADVLEN
+)
+
+%let id=0;
+data _null_;
+  set work.test1;
+  call symputx('id',id);
+run;
+%mp_assert(
+  iftrue=(&id>0),
+  desc=Checking that user was created with an ID,
+  outds=work.test_results
+)
+
+/* double check by querying the list of users */
+%ms_getusers(outds=work.test2)
+%let checkid=0;
+data _null_;
+  set work.test2;
+  where username="&user";
+  call symputx('checkid',id);
+run;
+%mp_assert(
+  iftrue=(&checkid=&id),
+  desc=Checking that fetched user exists and has the same ID,
+  outds=work.test_results
+)
+
+
+
+
+