Adds test cases for Bugfix: #636 PR: #637

tests/node-tests.js

@@ -41,6 +41,43 @@ describe('PapaParse', function() {
 		assertLongSampleParsedCorrectly(Papa.parse(longSampleRawCsv));
 	});
 
+	it('Pause and resume works (Regression Test for Bug #636)', function(done) {
+		this.timeout(30000);
+		var mod200Rows = [
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Lorem ipsum dolor sit","42"]
+		];
+		var stepped = 0;
+		var dataRows = [];
+		Papa.parse(fs.createReadStream(__dirname + '/verylong-sample.csv'), {
+			step: function(results, parser) {
+				stepped++;
+				if (results)
+				{
+					parser.pause();
+					parser.resume();
+					if (results.data && stepped % 200 === 0) {
+						//console.log(JSON.stringify(results.data));
+						dataRows.push(results.data);
+					}
+				}
+			},
+			complete: function() {
+				assert.strictEqual(2001, stepped);
+				assert.deepEqual(mod200Rows, dataRows);
+				done();
+			}
+		});
+	});
+
 	it('asynchronously parsed CSV should be correctly parsed', function(done) {
 		Papa.parse(longSampleRawCsv, {
 			complete: function(parsedCsv) {

tests/test-cases.js

@@ -1780,6 +1780,48 @@ describe('Unparse Tests', function() {
 
 
 var CUSTOM_TESTS = [
+	{
+		description: "Pause and resume works (Regression Test for Bug #636)",
+		disabled: !XHR_ENABLED,
+		expected: [2001, [
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Etiam a dolor vitae est vestibulum","84","DEF"],
+			["Lorem ipsum dolor sit","42","ABC"],
+			["Lorem ipsum dolor sit","42"]
+		], 0],
+		run: function(callback) {
+			var stepped = 0;
+			var dataRows = [];
+			var errorCount = 0;
+			var output = [];
+			Papa.parse(BASE_PATH + "verylong-sample.csv", {
+				download: true,
+				step: function(results, parser) {
+					stepped++;
+					if (results)
+					{
+						parser.pause();
+						parser.resume();
+						if (results.data && stepped % 200 === 0) {
+							dataRows.push(results.data);
+						}
+					}
+				},
+				complete: function() {
+					output.push(stepped);
+					output.push(dataRows);
+					output.push(errorCount);
+					callback(output);
+				}
+			});
+		}
+	},
 	{
 		description: "Complete is called with all results if neither step nor chunk is defined",
 		expected: [['A', 'b', 'c'], ['d', 'E', 'f'], ['G', 'h', 'i']],
@@ -2261,6 +2303,7 @@ var CUSTOM_TESTS = [
 ];
 
 describe('Custom Tests', function() {
+	this.timeout(30000);
 	function generateTest(test) {
 		(test.disabled ? it.skip : it)(test.description, function(done) {
 			test.run(function(actual) {