test: support multiple warnings in checkWarning

This allows the common.checkWarning() test method to accept a map of warning names to description(s), to allow testing code that generates multiple types of warnings. PR-URL: #11640 Reviewed-By: Anna Henningsen <[email protected]>

Author: apexskier

test/common.js

@@ -554,17 +554,45 @@ exports.isAlive = function isAlive(pid){
 }
 };
 
-exports.expectWarning=function(name,expected){
-if(typeofexpected==='string')
-expected=[expected];
-process.on('warning',exports.mustCall((warning)=>{
+functionexpectWarning(name,expectedMessages){
+returnexports.mustCall((warning)=>{
 assert.strictEqual(warning.name,name);
-assert.ok(expected.includes(warning.message),
+assert.ok(expectedMessages.includes(warning.message),
 `unexpected error message: "${warning.message}"`);
 // Remove a warning message after it is seen so that we guarantee that we
 // get each message only once.
-expected.splice(expected.indexOf(warning.message),1);
-},expected.length));
+expectedMessages.splice(expectedMessages.indexOf(warning.message),1);
+},expectedMessages.length);
+}
+
+functionexpectWarningByName(name,expected){
+if(typeofexpected==='string'){
+expected=[expected];
+}
+process.on('warning',expectWarning(name,expected));
+}
+
+functionexpectWarningByMap(warningMap){
+constcatchWarning={};
+Object.keys(warningMap).forEach((name)=>{
+letexpected=warningMap[name];
+if(typeofexpected==='string'){
+expected=[expected];
+}
+catchWarning[name]=expectWarning(name,expected);
+});
+process.on('warning',(warning)=>catchWarning[warning.name](warning));
+}
+
+// accepts a warning name and description or array of descriptions or a map
+// of warning names to description(s)
+// ensures a warning is generated for each name/description pair
+exports.expectWarning=function(nameOrMap,expected){
+if(typeofnameOrMap==='string'){
+expectWarningByName(nameOrMap,expected);
+}else{
+expectWarningByMap(nameOrMap);
+}
 };
 
 Object.defineProperty(exports,'hasIntl',{