feat: add missing tests to ndarray/base/includes

PR-URL: #7304
Ref: #2656
Co-authored-by: Athan Reines <[email protected]>
Reviewed-by: Athan Reines <[email protected]>

Author: headlessNode

lib/node_modules/@stdlib/ndarray/base/includes/lib/main.js

@@ -305,7 +305,8 @@ function includes( arrays ) {
 	}
 	// Check whether we were provided an empty ndarray...
 	if ( len === 0 ) {
-		return true;
+		// An empty array is a trivial case in which an array does not contain a search element:
+		return false;
 	}
 	// Determine whether the ndarray is one-dimensional and thus readily translates to a one-dimensional strided array...
 	if ( ndims === 1 ) {