diff --git a/tests/x-platform/mx_createjob.test.sas b/tests/x-platform/mx_createjob.test.sas
index 187a329..cb427ba 100644
--- a/tests/x-platform/mx_createjob.test.sas
+++ b/tests/x-platform/mx_createjob.test.sas
@@ -8,9 +8,13 @@
   <h4> SAS Macros </h4>
   @li mx_createjob.sas
   @li mp_assert.sas
+  @li mf_getuniquefileref.sas
 
 **/
 
+/**
+  * Test 1 - Basic job creation with default parameters
+  */
 filename ft15f001 temp;
 parmcards4;
   data example1;
@@ -18,10 +22,279 @@ parmcards4;
   run;
   %put Job executed successfully;
 ;;;;
-%mx_createjob(path=&mcTestAppLoc/jobs,name=testjob,replace=YES)
+%mx_createjob(path=&mcTestAppLoc/jobs,name=testjob1,replace=YES)
 
 %mp_assert(
   iftrue=(&syscc=0),
-  desc=No errors after job creation,
+  desc=Test 1: No errors after basic job creation,
+  outds=work.test_results
+)
+
+/**
+  * Test 2 - Job creation with custom description
+  */
+filename ft15f001 temp;
+parmcards4;
+  data example2;
+    set sashelp.cars;
+  run;
+;;;;
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob2,
+  desc=Custom job description for testing,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 2: Job created with custom description,
+  outds=work.test_results
+)
+
+/**
+  * Test 3 - Job creation with precode
+  */
+filename precode1 temp;
+data _null_;
+  file precode1;
+  put '%let testvar=PreCodeValue;';
+  put '%put &=testvar;';
+run;
+
+filename ft15f001 temp;
+parmcards4;
+  data example3;
+    set sashelp.class;
+    precode_var="&testvar";
+  run;
+;;;;
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob3,
+  precode=precode1,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 3: Job created with precode parameter,
+  outds=work.test_results
+)
+
+filename precode1 clear;
+
+/**
+  * Test 4 - Job creation with multiple code filerefs
+  */
+%let code1=%mf_getuniquefileref();
+%let code2=%mf_getuniquefileref();
+
+filename &code1 temp;
+data _null_;
+  file &code1;
+  put 'data work.part1;';
+  put '  set sashelp.class(obs=5);';
+  put 'run;';
+run;
+
+filename &code2 temp;
+data _null_;
+  file &code2;
+  put 'data work.part2;';
+  put '  set sashelp.class(firstobs=6);';
+  put 'run;';
+run;
+
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob4,
+  code=&code1 &code2,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 4: Job created with multiple code filerefs,
+  outds=work.test_results
+)
+
+filename &code1 clear;
+filename &code2 clear;
+
+/**
+  * Test 5 - Job creation with both precode and multiple code files
+  */
+%let pre1=%mf_getuniquefileref();
+%let pre2=%mf_getuniquefileref();
+%let main1=%mf_getuniquefileref();
+
+filename &pre1 temp;
+data _null_;
+  file &pre1;
+  put '%let globalvar1=Value1;';
+run;
+
+filename &pre2 temp;
+data _null_;
+  file &pre2;
+  put '%let globalvar2=Value2;';
+run;
+
+filename &main1 temp;
+data _null_;
+  file &main1;
+  put 'data work.combined;';
+  put '  var1="&globalvar1";';
+  put '  var2="&globalvar2";';
+  put '  output;';
+  put 'run;';
+run;
+
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob5,
+  precode=&pre1 &pre2,
+  code=&main1,
+  desc=Job with multiple precode and code files,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 5: Job created with multiple precode and code files,
+  outds=work.test_results
+)
+
+filename &pre1 clear;
+filename &pre2 clear;
+filename &main1 clear;
+
+/**
+  * Test 6 - Job creation with special characters in code
+  */
+filename ft15f001 temp;
+parmcards4;
+  data example6;
+    length text $200;
+    text='Special chars: & % $ # @ !';
+    output;
+    text="Quotes: 'single' and ""double""";
+    output;
+  run;
+  %put Test with special characters;
+;;;;
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob6,
+  desc=Job with special characters in code,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 6: Job created with special characters in code,
+  outds=work.test_results
+)
+
+/**
+  * Test 7 - Job creation with macro code
+  */
+filename ft15f001 temp;
+parmcards4;
+  %macro testmacro();
+    data example7;
+      set sashelp.class;
+      where age > 12;
+    run;
+  %mend testmacro;
+
+  %testmacro()
+;;;;
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob7,
+  desc=Job containing macro definitions,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 7: Job created with macro code,
+  outds=work.test_results
+)
+
+/**
+  * Test 8 - Job creation with empty code (edge case)
+  */
+filename ft15f001 temp;
+data _null_;
+  file ft15f001;
+  put '/* Empty job for testing */';
+run;
+
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob8,
+  desc=Job with minimal code,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 8: Job created with minimal code,
+  outds=work.test_results
+)
+
+/**
+  * Test 9 - Job creation with long code block
+  */
+filename ft15f001 temp;
+data _null_;
+  file ft15f001;
+  put 'data work.longtest;';
+  do i=1 to 50;
+    put '  var' i +(-1) '=' i ';';
+  end;
+  put '  output;';
+  put 'run;';
+run;
+
+%mx_createjob(
+  path=&mcTestAppLoc/jobs,
+  name=testjob9,
+  desc=Job with many variables,
+  replace=YES
+)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 9: Job created with long code block,
+  outds=work.test_results
+)
+
+/**
+  * Test 10 - Replace existing job (replace=YES)
+  */
+filename ft15f001 temp;
+parmcards4;
+  data example10_v1;
+    set sashelp.class;
+  run;
+;;;;
+%mx_createjob(path=&mcTestAppLoc/jobs,name=testjob10,replace=YES)
+
+/* Now replace it */
+filename ft15f001 temp;
+parmcards4;
+  data example10_v2;
+    set sashelp.cars;
+  run;
+;;;;
+%mx_createjob(path=&mcTestAppLoc/jobs,name=testjob10,replace=YES)
+
+%mp_assert(
+  iftrue=(&syscc=0),
+  desc=Test 10: Job replaced successfully with replace=YES,
   outds=work.test_results
 )