jansson: add test

Closes #35324.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/Library/Formula/jansson.rb b/Library/Formula/jansson.rb
index 1db3bee06..2e27dd0c6 100644
--- a/Library/Formula/jansson.rb
+++ b/Library/Formula/jansson.rb
@@ -18,4 +18,23 @@ class Jansson < Formula
                           "--prefix=#{prefix}"
     system "make", "install"
   end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <jansson.h>
+      #include <assert.h>
+
+      int main()
+      {
+        json_t *json;
+        json_error_t error;
+        json = json_loads("\\"foo\\"", JSON_DECODE_ANY, &error);
+        assert(json && json_is_string(json));
+        json_decref(json);
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-ljansson", "-o", "test"
+    system "./test"
+  end
 end