diff --git a/.gitignore b/.gitignore
index 4e701924..0727118b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.DS_Store
 *.ll
 *.out
 *.bc
@@ -14,4 +15,4 @@
 /target
 /tests/tmp.*
 /tests/tmp/hello.txt
-.DS_Store
+/tests/new_runtime/*.actual_out
diff --git a/Rakefile b/Rakefile
index cc8ffe02..2a92915b 100644
--- a/Rakefile
+++ b/Rakefile
@@ -163,3 +163,10 @@ end
 task async_test: :async do
   sh "./a"
 end
+task :async_integration_test do
+  Dir["tests/new_runtime/*.sk"].each do |path|
+    name = path.sub(".sk", "")
+    sh "cargo run --bin exp_shiika -- #{name}.sk > #{name}.actual_out"
+    sh "diff #{name}.actual_out #{name}.expected_out"
+  end
+end