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+/*
+ * test/13_drhtz-drhfz.js - drhtz and drhfz tests
+ *
+ * @licstart  The following is the entire license notice for the
+ * JavaScript code in this file.
+ *
+ * Copyright (C) 2017  Patrick McDermott
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute non-source (e.g. minimized or compacted) forms of
+ * this program without the copy of the GNU GPL normally required by
+ * section 4, provided you include this license notice and a URL
+ * through which recipients can access the Corresponding Source.
+ *
+ * @licend  The above is the entire license notice
+ * for the JavaScript code in this file.
+ */
+
+var assert = require("assert");
+require("../lib/decmath.js");
+
+describe("drhtz() and drhfz()", function() {
+	context("Basic tests", function() {
+		var tests = [
+			/*    a  p       r   functions   */
+			[ 23.1 , 0,  "23." , drhtz, drhfz],
+			[ 23.9 , 0,  "24." , drhtz, drhfz],
+			[  2.31, 1,   "2.3", drhtz, drhfz],
+			[  2.39, 1,   "2.4", drhtz, drhfz],
+			[-23.1 , 0, "-23." , drhtz, drhfz],
+			[-23.9 , 0, "-24." , drhtz, drhfz],
+			[ -2.31, 1,  "-2.3", drhtz, drhfz],
+			[ -2.39, 1,  "-2.4", drhtz, drhfz],
+		];
+		tests.forEach(function(test) {
+			test.slice(3).forEach(function(f) {
+				assert.equal(f(test[0], test[1]), test[2]);
+			});
+		});
+	});
+	context("Tie-breaking tests", function() {
+		var tests = [
+			/*    a  p       r   functions   */
+			[ 23.5 , 0,  "23." , drhtz       ],
+			[ 23.5 , 0,  "24." ,        drhfz],
+			[  2.35, 1,   "2.3", drhtz       ],
+			[  2.35, 1,   "2.4",        drhfz],
+			[-23.5 , 0, "-23." , drhtz       ],
+			[-23.5 , 0, "-24." ,        drhfz],
+			[ -2.35, 1,  "-2.3", drhtz       ],
+			[ -2.35, 1,  "-2.4",        drhfz],
+		];
+		tests.forEach(function(test) {
+			test.slice(3).forEach(function(f) {
+				assert.equal(f(test[0], test[1]), test[2]);
+			});
+		});
+	});
+	context("Invalid precision tests", function() {
+		var tests = [
+			/*    a  p       r   functions   */
+			[ 23   , 1,   undef, drhtz, drhfz],
+		];
+		tests.forEach(function(test) {
+			test.slice(3).forEach(function(f) {
+				assert.equal(f(test[0], test[1]), test[2]);
+			});
+		});
+	});
+});