Update test.main.js

Signed-off-by: Gururaj Gurram <[email protected]>

Author: gururaj1512

lib/node_modules/@stdlib/strided/base/map-by2/test/test.main.js

@@ -73,6 +73,7 @@ tape( 'the function applies a binary function to indexed strided array elements
 	t.deepEqual( z, expected, 'deep equal' );
 
 	x = [ ]; // sparse array
+	x.length = 5;
 	y = [ 1.0, 1.0, 2.0, 2.0, 3.0 ];
 	z = [ 0.0, 0.0, 0.0, 0.0, 0.0 ];