test: add initial tests

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/binary/test/test.js

@@ -0,0 +1,151 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2025 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.
+*/
+
+/* eslint-disable max-len */
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var ndarray = require( '@stdlib/ndarray/ctor' );
+var zeros = require( '@stdlib/array/zeros' );
+var ones = require( '@stdlib/array/ones' );
+var shape2strides = require( '@stdlib/ndarray/base/shape2strides' );
+var strides2offset = require( '@stdlib/ndarray/base/strides2offset' );
+var numel = require( '@stdlib/ndarray/base/numel' );
+var binary = require( './../lib' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof binary, 'function', 'main export is a function' );
+	t.end();
+});
+
+tape( 'the function throws an error if provided input and output ndarrays which do not have the same number of dimensions', function test( t ) {
+	var shapes;
+	var i;
+
+	shapes = [
+		[ [ 4, 2, 1 ], [ 4, 2, 1 ], [ 4, 2 ] ],
+		[ [ 2, 2 ], [ 2, 2, 2 ], [ 2, 2, 2 ] ],
+		[ [ 1, 1, 1, 1 ], [ 1, 1, 1 ], [ 1, 1 ] ],
+		[ [ 2, 2, 1, 2 ], [ 2, 2, 1 ], [ 2, 1, 2 ] ],
+		[ [ 1, 1, 4, 2, 2, 2 ], [ 0 ], [ 10, 2 ] ],
+		[ [ 1, 1, 1, 1 ], [ 1, 1, 1 ], [ 1, 1, 1, 1, 1 ] ]
+	];
+
+	for ( i = 0; i < shapes.length; i++ ) {
+		t.throws( badValue( shapes[i][0], shapes[i][1], shapes[i][2] ), Error, 'throws an error for index ' + i );
+	}
+	t.end();
+
+	function add( a, b ) {
+		return a + b;
+	}
+
+	function badValue( sh1, sh2, sh3 ) {
+		return function badValue() {
+			var dtype;
+			var ord;
+			var st1;
+			var st2;
+			var st3;
+			var o1;
+			var o2;
+			var o3;
+			var x;
+			var y;
+			var z;
+
+			ord = 'row-major';
+			dtype = 'float64';
+
+			st1 = shape2strides( sh1, ord );
+			st2 = shape2strides( sh2, ord );
+			st3 = shape2strides( sh3, ord );
+			o1 = strides2offset( sh1, st1 );
+			o2 = strides2offset( sh2, st2 );
+			o3 = strides2offset( sh3, st3 );
+
+			x = ndarray( dtype, ones( numel( sh1 ), dtype ), sh1, st1, o1, ord );
+			y = ndarray( dtype, ones( numel( sh2 ), dtype ), sh2, st2, o2, ord );
+			z = ndarray( dtype, zeros( numel( sh3 ), dtype ), sh3, st3, o3, ord );
+
+			binary( [ x, y, z ], add );
+		};
+	}
+});
+
+tape( 'the function throws an error if provided input and output ndarrays which do not have the same shape', function test( t ) {
+	var shapes;
+	var i;
+
+	shapes = [
+		[ [ 4, 2, 1 ], [ 4, 2, 2 ], [ 4, 2, 1 ] ],
+		[ [ 3, 3 ], [ 2, 2 ], [ 3, 3 ] ],
+		[ [ 5, 5, 5 ], [ 5, 5, 4 ], [ 5, 5, 4 ] ],
+		[ [ 1, 1, 1 ], [ 2, 2, 2 ], [ 1, 1, 2 ] ],
+		[ [ 1, 4 ], [ 3, 8 ], [ 4, 4 ] ],
+		[ [ 10, 2, 1 ], [ 1, 2, 10 ], [ 2, 1, 10 ] ]
+	];
+
+	for ( i = 0; i < shapes.length; i++ ) {
+		t.throws( badValue( shapes[i][0], shapes[i][1], shapes[i][2] ), Error, 'throws an error for index ' + i );
+	}
+	t.end();
+
+	function add( a, b ) {
+		return a + b;
+	}
+
+	function badValue( sh1, sh2, sh3 ) {
+		return function badValue() {
+			var dtype;
+			var ord;
+			var st1;
+			var st2;
+			var st3;
+			var o1;
+			var o2;
+			var o3;
+			var x;
+			var y;
+			var z;
+
+			ord = 'row-major';
+			dtype = 'float64';
+
+			st1 = shape2strides( sh1, ord );
+			st2 = shape2strides( sh2, ord );
+			st3 = shape2strides( sh3, ord );
+			o1 = strides2offset( sh1, st1 );
+			o2 = strides2offset( sh2, st2 );
+			o3 = strides2offset( sh3, st3 );
+
+			x = ndarray( dtype, ones( numel( sh1 ), dtype ), sh1, st1, o1, ord );
+			y = ndarray( dtype, ones( numel( sh2 ), dtype ), sh2, st2, o2, ord );
+			z = ndarray( dtype, zeros( numel( sh3 ), dtype ), sh3, st3, o3, ord );
+
+			binary( [ x, y, z ], add );
+		};
+	}
+});