test: adding history regression test case

PR-URL: #24843
Refs: #24385
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: antsmartian

test/parallel/test-repl-history-navigation.js

@@ -0,0 +1,139 @@
+'use strict';
+
+// Flags: --expose-internals
+
+constcommon=require('../common');
+conststream=require('stream');
+constREPL=require('internal/repl');
+constassert=require('assert');
+constfs=require('fs');
+constpath=require('path');
+
+consttmpdir=require('../common/tmpdir');
+tmpdir.refresh();
+
+constdefaultHistoryPath=path.join(tmpdir.path,'.node_repl_history');
+
+// Create an input stream specialized for testing an array of actions
+classActionStreamextendsstream.Stream{
+run(data){
+const_iter=data[Symbol.iterator]();
+constdoAction=()=>{
+constnext=_iter.next();
+if(next.done){
+// Close the repl. Note that it must have a clean prompt to do so.
+this.emit('keypress','',{ctrl: true,name: 'd'});
+return;
+}
+constaction=next.value;
+
+if(typeofaction==='object'){
+this.emit('keypress','',action);
+}else{
+this.emit('data',`${action}`);
+}
+setImmediate(doAction);
+};
+setImmediate(doAction);
+}
+resume(){}
+pause(){}
+}
+ActionStream.prototype.readable=true;
+
+
+// Mock keys
+constENTER={name: 'enter'};
+constUP={name: 'up'};
+constDOWN={name: 'down'};
+
+constprompt='> ';
+
+consttests=[
+{// creates few history to navigate for
+env: {NODE_REPL_HISTORY: defaultHistoryPath},
+test: ['let ab = 45',ENTER,
+'555 + 909',ENTER,
+'{key : {key2 :[] }}',ENTER],
+expected: [],
+clean: false
+},
+{
+env: {NODE_REPL_HISTORY: defaultHistoryPath},
+test: [UP,UP,UP,UP,DOWN,DOWN,DOWN],
+expected: [prompt,
+`${prompt}{key : {key2 :[] }}`,
+`${prompt}555 + 909`,
+`${prompt}let ab = 45`,
+`${prompt}555 + 909`,
+`${prompt}{key : {key2 :[] }}`,
+prompt],
+clean: true
+}
+];
+constnumtests=tests.length;
+
+construnTestWrap=common.mustCall(runTest,numtests);
+
+functioncleanupTmpFile(){
+try{
+// Write over the file, clearing any history
+fs.writeFileSync(defaultHistoryPath,'');
+}catch(err){
+if(err.code==='ENOENT')returntrue;
+throwerr;
+}
+returntrue;
+}
+
+functionrunTest(){
+constopts=tests.shift();
+if(!opts)return;// All done
+
+constenv=opts.env;
+consttest=opts.test;
+constexpected=opts.expected;
+
+REPL.createInternalRepl(env,{
+input: newActionStream(),
+output: newstream.Writable({
+write(chunk,_,next){
+constoutput=chunk.toString();
+
+if(output.charCodeAt(0)===27||/^[\r\n]+$/.test(output)){
+returnnext();
+}
+
+if(expected.length){
+assert.strictEqual(output,expected[0]);
+expected.shift();
+}
+
+next();
+}
+}),
+prompt: prompt,
+useColors: false,
+terminal: true
+},function(err,repl){
+if(err){
+console.error(`Failed test # ${numtests-tests.length}`);
+throwerr;
+}
+
+repl.once('close',()=>{
+if(opts.clean)
+cleanupTmpFile();
+
+if(expected.length!==0){
+thrownewError(`Failed test # ${numtests-tests.length}`);
+}
+setImmediate(runTestWrap,true);
+});
+
+repl.inputStream.run(test);
+});
+}
+
+// run the tests
+runTest();