diff --git a/lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.to_locale_string.js b/lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.to_locale_string.js
index 3ee752ae275e..6778951015a5 100644
--- a/lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.to_locale_string.js
+++ b/lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.to_locale_string.js
@@ -23,6 +23,7 @@
 var tape = require( 'tape' );
 var hasProp = require( '@stdlib/assert/has-property' );
 var isFunction = require( '@stdlib/assert/is-function' );
+var format = require( '@stdlib/string/format' );
 var namedtypedtuple = require( './../lib' );
 
 
@@ -87,7 +88,7 @@ tape( 'the method serializes a tuple as a locale-specific string (default locale
 	Point = namedtypedtuple( [ 'price', 'quantity' ] );
 	p = new Point( [ 123456.789, 9876 ] );
 
-	expected = 'tuple(price=' + (123456.789).toLocaleString() + ', quantity=' + (9876).toLocaleString() + ')';
+	expected = format( 'tuple(price=%s, quantity=%s)', (123456.789).toLocaleString(), (9876).toLocaleString() );
 	actual = p.toLocaleString();
 
 	t.strictEqual( actual, expected, 'returns expected value' );
@@ -103,7 +104,7 @@ tape( 'the method serializes a tuple as a locale-specific string (specified loca
 	Point = namedtypedtuple( [ 'price', 'quantity' ] );
 	p = new Point( [ 123456.789, 9876 ] );
 
-	expected = 'tuple(price=123.456,789, quantity=9.876)';
+	expected = format( 'tuple(price=%s, quantity=%s)', (123456.789).toLocaleString( 'de-DE' ), (9876).toLocaleString( 'de-DE' ) );
 	actual = p.toLocaleString( 'de-DE' );
 
 	t.strictEqual( actual, expected, 'returns expected value' );
@@ -124,7 +125,7 @@ tape( 'the method serializes a tuple as a locale-specific string (locale and opt
 		'currency': 'USD'
 	};
 
-	expected = 'tuple(price=' + (1234.56).toLocaleString( 'en-US', opts ) + ', quantity=' + (50).toLocaleString( 'en-US', opts ) + ')';
+	expected = format( 'tuple(price=%s, quantity=%s)', (1234.56).toLocaleString( 'en-US', opts ), (50).toLocaleString( 'en-US', opts ) );
 	actual = p.toLocaleString( 'en-US', opts );
 
 	t.strictEqual( actual, expected, 'returns expected value' );