test: skip doctool tests when js-yaml is missing

Skip the doctool tests when js-yaml, which is currently `require()`d from the eslint source tree, is missing. This can happen, for example, because eslint is not included in the release source tarballs. Fixes: #7201 Ref: #6495 PR-URL: #7218 Reviewed-By: Roman Reiss <[email protected]> Reviewed-By: Sakthipriyan Vairamani <[email protected]>

Author: addaleax

test/doctool/test-doctool-html.js

@@ -5,6 +5,13 @@ const assert = require('assert');
 constfs=require('fs');
 constpath=require('path');
 
+// The doctool currently uses js-yaml from the tool/eslint/ tree.
+try{
+require('../../tools/eslint/node_modules/js-yaml');
+}catch(e){
+returncommon.skip('missing js-yaml (eslint not present)');
+}
+
 constprocessIncludes=require('../../tools/doc/preprocess.js');
 consthtml=require('../../tools/doc/html.js');
 

test/doctool/test-doctool-json.js

@@ -5,6 +5,13 @@ const assert = require('assert');
 constfs=require('fs');
 constpath=require('path');
 
+// The doctool currently uses js-yaml from the tool/eslint/ tree.
+try{
+require('../../tools/eslint/node_modules/js-yaml');
+}catch(e){
+returncommon.skip('missing js-yaml (eslint not present)');
+}
+
 constjson=require('../../tools/doc/json.js');
 
 // Outputs valid json with the expected fields when given simple markdown