feat: new (generic) mp_assert macro, and new feature (type filter) for mf_getvarlist. Added/updated tests for mp_filtercheck and mp_validatecol and mf_getvarlist.

base/mp_assert.sas

@@ -0,0 +1,56 @@
+/**
+  @file
+  @brief Generic assertion
+  @details Useful in the context of writing sasjs tests.  The results of the
+  test are _appended_ to the &outds. table.
+
+  Example usage:
+
+      %mp_assert(iftrue=(1=1),
+        desc=Obviously true
+      )
+
+      %mp_assert(iftrue=(1=0),
+        desc=Will fail
+      )
+
+  @param [in] iftrue= (1=1) A condition where, if true, the test is a PASS.
+  Else, the test is a fail.
+
+  @param [in] desc= (Testing observations) The user provided test description
+  @param [out] outds= (work.test_results) The output dataset to contain the
+  results.  If it does not exist, it will be created, with the following format:
+  |TEST_DESCRIPTION:$256|TEST_RESULT:$4|TEST_COMMENTS:$256|
+  |---|---|---|
+  |User Provided description|PASS|Column &inds contained ALL columns|
+
+  @version 9.2
+  @author Allan Bowe
+
+**/
+
+%macro mp_assert(iftrue=(1=1),
+  desc=0,
+  outds=work.test_results
+)/*/STORE SOURCE*/;
+
+  data ;
+    length test_description $256 test_result $4 test_comments $256;
+    test_description=symget('desc');
+    test_comments="&sysmacroname: Test result of "!!symget('iftrue');
+  %if %eval(%unquote(&iftrue)) %then %do;
+    test_result='PASS';
+  %end;
+  %else %do;
+    test_result='FAIL';
+  %end;
+  run;
+
+  %local ds ;
+  %let ds=&syslast;
+  proc append base=&outds data=&ds;
+  run;
+  proc sql;
+  drop table &ds;
+
+%mend mp_assert;