1 files changed, 40 insertions, 0 deletions
diff --git a/cli/tests/integration/macos_tests.rs b/cli/tests/integration/macos_tests.rs
new file mode 100644
index 000000000..61ee461a3
--- /dev/null
+++ b/cli/tests/integration/macos_tests.rs
@@ -0,0 +1,40 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+#[cfg(target_os = "macos")]
+#[test]
+// https://github.com/denoland/deno/issues/18243
+// This test is to prevent inadvertently linking to more shared system libraries that usually
+// increases dyld startup time.
+fn macos_shared_libraries() {
+  use test_util as util;
+
+  // target/release/deno:
+  // 	/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1953.255.0)
+  // 	/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices (compatibility version 1.0.0, current version 1228.0.0)
+  // 	/System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 1.0.0, current version 60420.60.24)
+  // 	/usr/lib/libiconv.2.dylib (compatibility version 7.0.0, current version 7.0.0)
+  // 	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1319.0.0)
+  const EXPECTED: [&str; 5] =
+    ["/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation",
+     "/System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices",
+     "/System/Library/Frameworks/Security.framework/Versions/A/Security",
+     "/usr/lib/libiconv.2.dylib",
+     "/usr/lib/libSystem.B.dylib"];
+
+  let otool = std::process::Command::new("otool")
+    .arg("-L")
+    .arg(util::deno_exe_path())
+    .output()
+    .expect("Failed to execute otool");
+
+  let output = std::str::from_utf8(&otool.stdout).unwrap();
+  // Ensure that the output contains only the expected shared libraries.
+  for line in output.lines().skip(1) {
+    let path = line.split_whitespace().next().unwrap();
+    assert!(
+      EXPECTED.contains(&path),
+      "Unexpected shared library: {}",
+      path
+    );
+  }
+}