EAGLESIX-2691 First stab at the templates VariadicExpressionT class. It depends upon other classes that are not yet converted so it is not working.

lib/pipeline/expressions/VariadicExpressionT.js

@@ -0,0 +1,19 @@
+"use strict";
+
+/**
+ * A factory and base class for all expressions that are variadic (AKA they accept any number of arguments)
+ * @class VariadicExpressionT
+ * @namespace mungedb-aggregate.pipeline.expressions
+ * @module mungedb-aggregate
+ * @constructor
+ **/
+
+var VariadicExpressionT = module.exports = function VariadicExpressionT(SubClass) {
+
+	var VariadicExpression = function VariadicExpression() {
+		base.call(this);
+	}, klass = VariadicExpression, base = require("./NaryExpressionT")(SubClass), proto = klass.prototype = Object.create(base.prototype, {constructor: {value: klass}});
+
+	return VariadicExpression;
+};
+

test/lib/pipeline/expressions/VariadicExpressionT_test.js

@@ -0,0 +1,29 @@
+"use strict";
+
+var assert = require("assert"),
+	VariadicExpressionT = require("../../../../lib/pipeline/expressions/VariadicExpressionT"),
+	NaryExpressionT = require("../../../../lib/pipeline/expressions/NaryExpressionT");
+
+
+//TODO: refactor these test cases using Expression.parseOperand() or something because these could be a whole lot cleaner...
+module.exports = {
+
+	"VariaticExpression": {
+
+		"constructor()": {
+
+			"should not throw Error when constructing without args": function testConstructor() {
+				assert.doesNotThrow(function () {
+					new VariadicExpressionT({});
+				});
+			},
+
+			"should be an instance of NaryExpression": function () {
+				assert(new VariadicExpressionT() instanceof NaryExpression);
+			}
+		}
+	}
+};
+
+
+if (!module.parent)(new(require("mocha"))()).ui("exports").reporter("spec").addFile(__filename).run(process.exit);