Add tests to achieve code coverage

Author: kgryte

lib/node_modules/@stdlib/assert/is-date-object/test/test.try2getday.js

@@ -0,0 +1,55 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2021 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var proxyquire = require( 'proxyquire' );
+var noop = require( '@stdlib/utils/noop' );
+var try2getday = require( './../lib/try2getday.js' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof try2getday, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function returns `true` if able to call a `Date` object method', function test( t ) {
+	var try2getday = proxyquire( './../lib/try2getday.js', {
+		'./getday.js': noop
+	});
+	t.strictEqual( try2getday(), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'the function returns `false` if unable to call a `Date` object method', function test( t ) {
+	var try2getday = proxyquire( './../lib/try2getday.js', {
+		'./getday.js': mock
+	});
+	t.strictEqual( try2getday(), false, 'returns expected value' );
+	t.end();
+
+	function mock() {
+		throw new Error( 'not supported' );
+	}
+});