test_doc.sh: Use two digits to number test blocks

Before, blocks would be tested in alphabetical order (1, 11, ..., 19, 2, 20, ...)
Now they are tested in numerical order (01, 02, ..., 09, 10, ...)

Author: Wolfram Rösler

tests/test_doc.sh

@@ -6,7 +6,7 @@ LANG=C.UTF-8
 
 export FORCE_COLOR=false
 export STICK_TO_CWD=true
-BASH_UNIT="eval ./bash_unit"
+BASH_UNIT="eval ./bash_unit -o"
 #BASH_UNIT="eval FORCE_COLOR=false ./bash_unit"
 
 prepare_tests() {
@@ -20,10 +20,10 @@ prepare_tests() {
 
   while grep -E '^'"$TEST_PATTERN"'$' $remaining >/dev/null
   do
-    block=$(($block+1))
+    ((++block))
     run_doc_test  $remaining $swap |& sed '$a\' > $test_output$block
     doc_to_output $remaining $swap > $expected_output$block
-    eval 'function test_block_'"$block"'() {
+    eval 'function test_block_'"$(printf %02d $block)"'() {
         assert "diff -u '"$expected_output$block"' '"$test_output$block"'"
       }'
   done