1 files changed, 10 insertions, 0 deletions
diff --git a/test_util/src/assertions.rs b/test_util/src/assertions.rs
index a004530b6..29066ded0 100644
--- a/test_util/src/assertions.rs
+++ b/test_util/src/assertions.rs
@@ -1,6 +1,16 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 
 #[macro_export]
+macro_rules! assert_starts_with {
+  ($string:expr, $($test:expr),+) => {
+    let string = $string; // This might be a function call or something
+    if !($(string.starts_with($test))||+) {
+      panic!("{:?} does not start with {:?}", string, [$($test),+]);
+    }
+  }
+}
+
+#[macro_export]
 macro_rules! assert_ends_with {
   ($left:expr, $right:expr $(,)?) => {
     match (&$left, &$right) {