fix: add missing ndarray test fixture

lib/node_modules/@stdlib/ndarray/dispatch-by/test/fixtures/fill.js

@@ -0,0 +1,76 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2023 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 ind2sub = require( '@stdlib/ndarray/ind2sub' );
+var numel = require( '@stdlib/ndarray/base/numel' );
+
+
+// MAIN //
+
+/**
+* Return an ndarray function which fills one or more ndarrays.
+*
+* @private
+* @param {*} value - fill value
+* @returns {Function} ndarray function
+*/
+function fill( value ) {
+	return ndarrayFcn;
+
+	/**
+	* ndarray function.
+	*
+	* @private
+	* @param {Array<ndarrayLike>} arrays - ndarrays
+	*/
+	function ndarrayFcn( arrays ) {
+		var opts;
+		var sub;
+		var arr;
+		var sh;
+		var M;
+		var N;
+		var i;
+		var j;
+
+		sh = arrays[ 0 ].shape;
+		N = numel( sh );
+		M = arrays.length;
+		opts = {
+			'order': ''
+		};
+		for ( j = 0; j < M; j++ ) {
+			arr = arrays[ j ];
+			opts.order = arrays[ j ].order;
+			for ( i = 0; i < N; i++ ) {
+				sub = ind2sub( sh, i, opts );
+				sub.push( value );
+				arr.set.apply( arr, sub );
+			}
+		}
+	}
+}
+
+
+// EXPORTS //
+
+module.exports = fill;