feat: add missing tests to ndarray/base/includes

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

@@ -268,7 +268,7 @@
 		if ( !isComplexLike( value ) ) {
 			return false;
 		}
 		// TODO: consider adding something like `complex/base/complex2object` where we normalize a user-provided complex-like object to a standardized object shape
 		value = {
 			're': real( value ),
 			'im': imag( value )
@@ -305,7 +305,8 @@
 	}
 	// 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 ) {