ut_coverage_html_reporter crashes when code under test contain lines larger than 1911 characters

PhilippSalvisberg

Describe the bug
When the source code contain one or more lines that are longer than 1911 characters (bytes?) then the ut_coverage_html_reporter crashes.

Provide version info

21.0.0.0.0
21.0.0


PL/SQL procedure successfully completed.


UT_VERSION                                                  
------------------------------------------------------------
v3.1.13.4021-develop


BANNER                                                                           BANNER_FULL                                                                                                                                                      BANNER_LEGACY                                                                        CON_ID
-------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------- ----------
Oracle Database 21c Enterprise Edition Release 21.0.0.0.0 - Production           Oracle Database 21c Enterprise Edition Release 21.0.0.0.0 - Production                                                                                           Oracle Database 21c Enterprise Edition Release 21.0.0.0.0 - Production                    0
                                                                                 Version 21.3.0.0.0                                                                                                                                                                                                                                          



PARAMETER                      VALUE                                                           
------------------------------ ----------------------------------------------------------------
NLS_LANGUAGE                   AMERICAN                                                        
NLS_TERRITORY                  AMERICA                                                         
NLS_CURRENCY                   $                                                               
NLS_ISO_CURRENCY               AMERICA                                                         
NLS_NUMERIC_CHARACTERS         .,                                                              
NLS_CALENDAR                   GREGORIAN                                                       
NLS_DATE_FORMAT                DD.MM.YYYY HH24:MI:SS                                           
NLS_DATE_LANGUAGE              AMERICAN                                                        
NLS_SORT                       BINARY                                                          
NLS_TIME_FORMAT                HH.MI.SSXFF AM                                                  
NLS_TIMESTAMP_FORMAT           DD.MM.YYYY HH24:MI:SSXFF                                        

PARAMETER                      VALUE                                                           
------------------------------ ----------------------------------------------------------------
NLS_TIME_TZ_FORMAT             HH.MI.SSXFF AM TZR                                              
NLS_TIMESTAMP_TZ_FORMAT        DD.MM.YYYY HH24:MI:SSXFF TZR                                    
NLS_DUAL_CURRENCY              $                                                               
NLS_COMP                       BINARY                                                          
NLS_LENGTH_SEMANTICS           BYTE                                                            
NLS_NCHAR_CONV_EXCP            FALSE                                                           

17 rows selected. 


PORT_STRING                                                 
------------------------------------------------------------
x86_64/Linux 2.4.xx

Information about client software
The client is not relevant. You can reproduce the bug in any SQL client. However, I used SQL Developer 22.2.0 on MacOS 12.5.1.

To Reproduce
Steps to reproduce the behavior:
see chapter "Example code" below.

Expected behavior
From my point of view ut_coverage_html_reporter should not crash. I can understand that processing long lines is problematic. In such cases I suggest to truncate these lines for the HTML output.

Example code
Run the following code to reproduce the problem in any environment:

create or replace type string_array is table of varchar2(5 char);
/

create or replace function f return integer is
   l_string_array string_array;
   l_count        integer;
begin
   -- line is 1912 chars long, 1911 characters seem to be the max. line length that works (@formatter:off)
   l_string_array := string_array('aahed', 'aalii', 'aargh', 'aarti', 'abaca', 'abaci', 'abacs', 'abaft', 'abaka', 'abamp', 'aband', 'abash', 'abask', 'abaya', 'abbas', 'abbed', 'abbes', 'abcee', 'abeam', 'abear', 'abele', 'abers', 'abets', 'abies', 'abler', 'ables', 'ablet', 'ablow', 'abmho', 'abohm', 'aboil', 'aboma', 'aboon', 'abord', 'abore', 'abram', 'abray', 'abrim', 'abrin', 'abris', 'absey', 'absit', 'abuna', 'abune', 'abuts', 'abuzz', 'abyes', 'abysm', 'acais', 'acari', 'accas', 'accoy', 'acerb', 'acers', 'aceta', 'achar', 'ached', 'aches', 'achoo', 'acids', 'acidy', 'acing', 'acini', 'ackee', 'acker', 'acmes', 'acmic', 'acned', 'acnes', 'acock', 'acold', 'acred', 'acres', 'acros', 'acted', 'actin', 'acton', 'acyls', 'adaws', 'adays', 'adbot', 'addax', 'added', 'adder', 'addio', 'addle', 'adeem', 'adhan', 'adieu', 'adios', 'adits', 'adman', 'admen', 'admix', 'adobo', 'adown', 'adoze', 'adrad', 'adred', 'adsum', 'aduki', 'adunc', 'adust', 'advew', 'adyta', 'adzed', 'adzes', 'aecia', 'aedes', 'aegis', 'aeons', 'aerie', 'aeros', 'aesir', 'afald', 'afara', 'afars', 'afear', 'aflaj', 'afore', 'afrit', 'afros', 'agama', 'agami', 'agars', 'agast', 'agave', 'agaze', 'agene', 'agers', 'agger', 'aggie', 'aggri', 'aggro', 'aggry', 'aghas', 'agila', 'agios', 'agism', 'agist', 'agita', 'aglee', 'aglet', 'agley', 'agloo', 'aglus', 'agmas', 'agoge', 'agone', 'agons', 'agood', 'agora', 'agria', 'agrin', 'agros', 'agued', 'agues', 'aguna', 'aguti', 'aheap', 'ahent', 'ahigh', 'ahind', 'ahing', 'ahint', 'ahold', 'ahull', 'ahuru', 'aidas', 'aided', 'aides', 'aidoi', 'aidos', 'aiery', 'aigas', 'aight', 'ailed', 'aimed', 'aimer', 'ainee', 'ainga', 'aioli', 'aired', 'airer', 'airns', 'airth', 'airts', 'aitch', 'aitus', 'aiver', 'aiyee', 'aizle', 'ajies', 'ajiva', 'ajuga', 'ajwan', 'akees', 'akela', 'akene', 'aking', 'akita', 'akkas', 'alaap', 'alack', 'alamo', 'aland', 'alane', 'alang', 'a');
   select count(*) into l_count from table(l_string_array);
   return l_count;
end;
/

create or replace package test_f is
   --%suite
    
   --%test
   procedure crashing_ut_coverage_html_reporter;
end;
/

create or replace package body test_f is
   procedure crashing_ut_coverage_html_reporter is
   begin
      ut.expect(f()).to_be_greater_or_equal(1);
   end;
end;
/

set serveroutput on size unlimited

-- works
execute ut.run('test_f');

-- fails
execute ut.run('test_f', ut_coverage_html_reporter());

The output looks like this:


Type STRING_ARRAY compiled


Function F compiled


Package TEST_F compiled


Package Body TEST_F compiled

test_f
  crashing_ut_coverage_html_reporter [.024 sec]
 
Finished in .02968 seconds
1 tests, 0 failed, 0 errored, 0 disabled, 0 warning(s)
 


PL/SQL procedure successfully completed.

ORA-06512: at "SYS.DBMS_XMLGEN", line 19
ORA-06512: at "SYS.DBMS_XMLGEN", line 295
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 190
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 202
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 334
ORA-06512: at "UT3.UT_COVERAGE_HTML_REPORTER", line 37
ORA-06512: at "UT3.UT_REPORTER_BASE", line 193
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 70
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 80
ORA-06512: at "UT3.UT_RUN", line 66
ORA-06512: at "UT3.UT_SUITE_ITEM", line 50
ORA-06512: at "UT3.UT_RUNNER", line 151

ORA-19011: Character string buffer too small
ORA-06512: at "SYS.DBMS_XMLGEN", line 19
ORA-06512: at "SYS.DBMS_XMLGEN", line 295
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 190
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 202
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 334
ORA-06512: at "UT3.UT_COVERAGE_HTML_REPORTER", line 37
ORA-06512: at "UT3.UT_REPORTER_BASE", line 193
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 70
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 80
ORA-06512: at "UT3.UT_RUN", line 66
ORA-06512: at "UT3.UT_SUITE_ITEM", line 50



Error starting at line : 37 in command -
BEGIN ut.run('test_f', ut_coverage_html_reporter()); END;
Error report -
ORA-19011: Character string buffer too small
ORA-06512: at "UT3.UT_RUNNER", line 158
ORA-06512: at "SYS.DBMS_XMLGEN", line 19
ORA-06512: at "SYS.DBMS_XMLGEN", line 295
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 190
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 202
ORA-06512: at "UT3.UT_COVERAGE_REPORT_HTML_HELPER", line 334
ORA-06512: at "UT3.UT_COVERAGE_HTML_REPORTER", line 37
ORA-06512: at "UT3.UT_REPORTER_BASE", line 193
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 70
ORA-06512: at "UT3.UT_EVENT_MANAGER", line 80
ORA-06512: at "UT3.UT_RUN", line 66
ORA-06512: at "UT3.UT_SUITE_ITEM", line 50
ORA-06512: at "UT3.UT_RUNNER", line 151
ORA-06512: at "UT3.UT", line 143
ORA-06512: at "UT3.UT", line 566
ORA-06512: at "UT3.UT", line 733
ORA-06512: at line 1
19011. 00000 -  "Character string buffer too small" 
*Cause:    The string result asked for is too big to return back
*Action:   Get the result as a lob instead

Additional context
n/a