Add tests for fpdf2 renderer and font infrastructure

- Add hOCR test fixtures for Latin, Arabic, CJK, Devanagari scripts
- Add tests for fpdf2 renderer, multi-font manager, system font provider
- Add multilingual rendering tests
- Update existing tests to use fpdf2 renderer

tests/plugins/tesseract_cache.py

@@ -134,7 +134,7 @@ def cached_run(options, run_args, **run_kwargs):
             args.configfiles.append('txt')
 
         for configfile in args.configfiles:
-            if configfile not in ('hocr', 'pdf', 'txt'):
+            if configfile not in ('fpdf2', 'pdf', 'txt'):
                 continue
             # cp pwd/{outputbase}.{configfile} -> {cache}/{configfile}
             tessfile = args.outputbase + '.' + configfile

tests/plugins/tesseract_debug_rotate.py

@@ -5,7 +5,7 @@
 To quickly run tests where getting OCR output is not necessary and we want to test
 the rotation pipeline.
 
-In 'hocr' mode, create a .hocr file that specifies no text found.
+In generate_hocr mode, create a .hocr file that specifies no text found.
 
 In 'pdf' mode, convert the image to PDF using another program.
 

tests/plugins/tesseract_noop.py

@@ -4,7 +4,7 @@
 
 To quickly run tests where getting OCR output is not necessary.
 
-In 'hocr' mode, create a .hocr file that specifies no text found.
+In generate_hocr mode, create a .hocr file that specifies no text found.
 
 In 'pdf' mode, convert the image to PDF using another program.