diff --git a/ix.js/ix-tests.ts b/ix.js/ix-tests.ts
new file mode 100644
index 000000000..dc44f1589
--- /dev/null
+++ b/ix.js/ix-tests.ts
@@ -0,0 +1,46 @@
+///<reference path="ix.d.ts"/>
+
+var ec_ns = (a: number, b: string) => a.toString() == b;	//equality comparer on number,string
+var ec_nn = (a: number, b: number) => a === b;				//equality comparer on number,number
+var c_nn = (a: number, b: number) => a - b;					//comparer on number,number
+
+// static
+
+Ix.Enumerable.throw(new Error("error"));
+Ix.Enumerable.throwException(new Error("error"));
+
+var ax = Ix.Enumerable.generate(-100, a => a < 100, a=> a + 10, a=> a * 2);
+
+Ix.Enumerable.defer(() => ax);
+
+Ix.Enumerable.using(() => ax.getEnumerator(), e => Ix.Enumerable.return(e.getCurrent()));
+
+Ix.Enumerable.catch(ax, ax, ax);
+Ix.Enumerable.catchException(ax, ax, ax);
+Ix.Enumerable.catch<string>();
+Ix.Enumerable.catchException<string>();
+
+Ix.Enumerable.onErrorResumeNext(ax, ax, ax);
+Ix.Enumerable.onErrorResumeNext<string>();
+
+Ix.Enumerable.while(x => x.count() > 0, ax);
+Ix.Enumerable.whileDo(x => x.count() > 0, ax);
+
+Ix.Enumerable.if(() => true, ax, ax);
+Ix.Enumerable.ifThen(() => true, ax, ax);
+Ix.Enumerable.if(() => true, ax);
+Ix.Enumerable.ifThen(() => true, ax);
+
+Ix.Enumerable.doWhile(ax, x => x.count() > 0);
+
+Ix.Enumerable.case(() => 42, { 42: ax }, ax);
+Ix.Enumerable.switchCase(() => 42, { 42: ax }, ax);
+Ix.Enumerable.case(() => 42, { 42: ax });
+Ix.Enumerable.switchCase(() => 42, { 42: ax });
+Ix.Enumerable.case(() => "42", { "42": ax }, ax);
+Ix.Enumerable.switchCase(() => "42", { "42": ax }, ax);
+Ix.Enumerable.case(() => "42", { "42": ax });
+Ix.Enumerable.switchCase(() => "42", { "42": ax });
+
+Ix.Enumerable.for(ax, a => ax);
+Ix.Enumerable.forIn(ax, a => ax);