diff --git a/t/03-proxy_wasm/sdks/003-assemblyscript_sdk.t b/t/03-proxy_wasm/sdks/003-assemblyscript_sdk.t
new file mode 100644
index 000000000..ec8726d37
--- /dev/null
+++ b/t/03-proxy_wasm/sdks/003-assemblyscript_sdk.t
@@ -0,0 +1,141 @@
+# vim:set ft= ts=4 sts=4 sw=4 et fdm=marker:
+
+use strict;
+use lib '.';
+use t::TestWasm;
+
+skip_valgrind('wasmtime');
+skip_no_nodejs();
+
+plan tests => repeat_each() * (blocks() * 5);
+
+run_tests();
+
+__DATA__
+
+=== TEST 1: proxy_wasm AssemblyScript SDK - addheader example
+--- load_nginx_modules: ngx_http_echo_module
+--- wasm_modules: assemblyscript_addheader
+--- config
+    location /t {
+        proxy_wasm assemblyscript_addheader 'wasm';
+        echo ok;
+    }
+--- response_body
+ok
+--- response_headers
+hello: wasm
+--- no_error_log
+[error]
+[crit]
+
+
+
+=== TEST 2: proxy_wasm AssemblyScript SDK - auth example, authorized
+--- load_nginx_modules: ngx_http_echo_module
+--- wasm_modules: assemblyscript_auth
+--- tcp_listen: 12345
+--- tcp_reply eval
+sub {
+    return ["HTTP/1.1 200 OK\r\n",
+            "Connection: close\r\n",
+            "Content-Length: 0\r\n",
+            "\r\n"];
+}
+--- config
+    location /t {
+        proxy_wasm assemblyscript_auth '127.0.0.1:12345';
+        echo ok;
+    }
+--- response_body
+ok
+--- response_headers
+hello: wasm!
+--- no_error_log
+[error]
+[crit]
+
+
+
+=== TEST 3: proxy_wasm AssemblyScript SDK - auth example, unauthorized
+--- load_nginx_modules: ngx_http_echo_module
+--- wasm_modules: assemblyscript_auth
+--- tcp_listen: 12345
+--- tcp_reply eval
+sub {
+    return ["HTTP/1.1 401 Unauthorized\r\n",
+            "Connection: close\r\n",
+            "Content-Length: 0\r\n",
+            "\r\n"];
+}
+--- config
+    location /t {
+        proxy_wasm assemblyscript_auth '127.0.0.1:12345';
+        echo ok;
+    }
+--- error_code: 401
+--- no_error_log
+[error]
+[crit]
+[emerg]
+[stub]
+
+
+
+=== TEST 4: proxy_wasm AssemblyScript SDK - remove_headers example
+--- load_nginx_modules: ngx_http_echo_module
+--- wasm_modules: assemblyscript_remove_headers
+--- http_config
+    upstream test_upstream {
+        server unix:$TEST_NGINX_UNIX_SOCKET;
+    }
+
+    server {
+        listen unix:$TEST_NGINX_UNIX_SOCKET;
+
+        location / {
+            add_header foo bar;
+            echo ok;
+        }
+    }
+--- config
+    location /t {
+        proxy_wasm assemblyscript_remove_headers 'foo';
+        proxy_pass http://test_upstream/;
+    }
+--- response_body
+ok
+--- raw_response_headers_unlike: foo: bar
+--- no_error_log
+[error]
+[crit]
+
+
+
+=== TEST 5: proxy_wasm AssemblyScript SDK - singleton example
+--- load_nginx_modules: ngx_http_echo_module
+--- wasm_modules: assemblyscript_remove_headers
+--- http_config
+    upstream test_upstream {
+        server unix:$TEST_NGINX_UNIX_SOCKET;
+    }
+
+    server {
+        listen unix:$TEST_NGINX_UNIX_SOCKET;
+
+        location / {
+            add_header foo bar;
+            echo ok;
+        }
+    }
+--- config
+    location /t {
+        proxy_wasm assemblyscript_remove_headers 'foo';
+        proxy_pass http://test_upstream/;
+    }
+--- response_body
+ok
+--- raw_response_headers_unlike: foo: bar
+--- no_error_log
+[error]
+[crit]
diff --git a/t/TestWasm.pm b/t/TestWasm.pm
index 14638bec4..3bdb85813 100644
--- a/t/TestWasm.pm
+++ b/t/TestWasm.pm
@@ -30,6 +30,7 @@ our @EXPORT = qw(
     skip_no_ssl
     skip_no_debug
     skip_no_tinygo
+    skip_no_nodejs
     skip_valgrind
 );
 
@@ -83,6 +84,13 @@ sub skip_no_tinygo {
     }
 }
 
+sub skip_no_nodejs {
+    my @files = glob($ENV{TEST_NGINX_CRATES_DIR} . '/assemblyscript_*.wasm');
+    if (!@files && !defined($ENV{CI})) {
+        plan(skip_all => "Missing AssemblyScript .wasm bytecode files in $ENV{TEST_NGINX_CRATES_DIR}");
+    }
+}
+
 sub load_nginx_modules (@) {
     splice @nginx_modules, 0, 0, @_;
 }