spidermonkey: add test

Closes #26798.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/Library/Formula/spidermonkey.rb b/Library/Formula/spidermonkey.rb
index 664084854..7e08a4929 100644
--- a/Library/Formula/spidermonkey.rb
+++ b/Library/Formula/spidermonkey.rb
@@ -41,4 +41,13 @@ class Spidermonkey < Formula
       bin.install "shell/js"
     end
   end
+
+  test do
+    path = testpath/"test.js"
+    path.write "print('hello');"
+
+    output = `#{bin}/js #{path}`.strip
+    assert_equal "hello", output
+    assert_equal 0, $?.exitstatus
+  end
 end