Initial commit

node_modules/is-nan/test/tests.js

@@ -0,0 +1,40 @@
+'use strict';
+
+module.exports = function (numberIsNaN, t) {
+	t.test('not NaN', function (st) {
+		st.test('primitives', function (sst) {
+			sst.notOk(numberIsNaN(), 'undefined is not NaN');
+			sst.notOk(numberIsNaN(null), 'null is not NaN');
+			sst.notOk(numberIsNaN(false), 'false is not NaN');
+			sst.notOk(numberIsNaN(true), 'true is not NaN');
+			sst.notOk(numberIsNaN(0), 'positive zero is not NaN');
+			sst.notOk(numberIsNaN(Infinity), 'Infinity is not NaN');
+			sst.notOk(numberIsNaN(-Infinity), '-Infinity is not NaN');
+			sst.notOk(numberIsNaN('foo'), 'string is not NaN');
+			sst.notOk(numberIsNaN('NaN'), 'string NaN is not NaN');
+			sst.end();
+		});
+
+		st.notOk(numberIsNaN([]), 'array is not NaN');
+		st.notOk(numberIsNaN({}), 'object is not NaN');
+		st.notOk(numberIsNaN(function () {}), 'function is not NaN');
+
+		st.test('valueOf', function (vt) {
+			var obj = {
+				valueOf: function () {
+					return NaN;
+				}
+			};
+			vt.ok(numberIsNaN(Number(obj)), 'object with valueOf of NaN, converted to Number, is NaN');
+			vt.notOk(numberIsNaN(obj), 'object with valueOf of NaN is not NaN');
+			vt.end();
+		});
+
+		st.end();
+	});
+
+	t.test('NaN literal', function (st) {
+		st.ok(numberIsNaN(NaN), 'NaN is NaN');
+		st.end();
+	});
+};