test: add SELECT ALL support tests for issue #2355

test/test2355.js

@@ -0,0 +1,42 @@
+if (typeof exports === 'object') {
+	var assert = require('assert');
+	var alasql = require('..');
+}
+
+let testId = '2355'; // Use the ID of the issue being fixed by this PR
+
+describe(`Test ${testId} - SELECT ALL support`, function () {
+	before(function () {
+		alasql('create database test' + testId);
+		alasql('use test' + testId);
+	});
+
+	after(function () {
+		alasql('drop database test' + testId);
+	});
+
+	it('A) SELECT ALL returns all rows including duplicates', function () {
+		alasql('create table t1 (a int)');
+		alasql('insert into t1 values (1),(1),(2)');
+		var res = alasql('SELECT ALL * FROM t1');
+		assert.deepStrictEqual(res, [{a: 1}, {a: 1}, {a: 2}]);
+		alasql('drop table t1');
+	});
+
+	it('B) SELECT ALL vs SELECT DISTINCT', function () {
+		alasql('create table t2 (a int)');
+		alasql('insert into t2 values (1),(1),(2)');
+		var resAll = alasql('SELECT ALL * FROM t2');
+		var resDistinct = alasql('SELECT DISTINCT * FROM t2');
+		assert(resAll.length === 3, 'SELECT ALL should return 3 rows');
+		assert(resDistinct.length === 2, 'SELECT DISTINCT should return 2 rows');
+		alasql('drop table t2');
+	});
+
+	it('C) SELECT ALL with CROSS JOIN', function () {
+		alasql('create table tab1;create table tab2');
+		var res = alasql('SELECT ALL * FROM tab1 cor0 CROSS JOIN tab1, tab2 AS cor1');
+		assert(Array.isArray(res));
+		alasql('drop table tab1;drop table tab2');
+	});
+});