diff --git a/t/03-proxy_wasm/hfuncs/metrics/001-define_metric.t b/t/03-proxy_wasm/hfuncs/metrics/001-define_metric.t
index b11f39d4a..44ae0aa54 100644
--- a/t/03-proxy_wasm/hfuncs/metrics/001-define_metric.t
+++ b/t/03-proxy_wasm/hfuncs/metrics/001-define_metric.t
@@ -16,21 +16,61 @@ run_tests();
 
 __DATA__
 
-=== TEST 1: proxy_wasm - define_metric() sanity
+=== TEST 1: proxy_wasm - define_metric() counter
 --- valgrind
 --- wasm_modules: hostcalls
 --- load_nginx_modules: ngx_http_echo_module
 --- config
     location /t {
         proxy_wasm hostcalls 'on_configure=define_metrics \
-                              metrics=c1,g1,h1';
+                              metrics=c1';
+        echo ok;
+    }
+--- grep_error_log eval: qr/\["hostcalls" \#\d\] defined metric \w+ as \d+/
+--- grep_error_log_out eval
+qr/.*? defined metric c1 as \d+/
+--- no_error_log
+[error]
+[crit]
+[emerg]
+[alert]
+
+
+
+=== TEST 2: proxy_wasm - define_metric() gauge
+--- valgrind
+--- wasm_modules: hostcalls
+--- load_nginx_modules: ngx_http_echo_module
+--- config
+    location /t {
+        proxy_wasm hostcalls 'on_configure=define_metrics \
+                              metrics=g1';
+        echo ok;
+    }
+--- grep_error_log eval: qr/\["hostcalls" \#\d\] defined metric \w+ as \d+/
+--- grep_error_log_out eval
+qr/.*? defined metric g1 as \d+/
+--- no_error_log
+[error]
+[crit]
+[emerg]
+[alert]
+
+
+
+=== TEST 3: proxy_wasm - define_metric() histogram
+--- valgrind
+--- wasm_modules: hostcalls
+--- load_nginx_modules: ngx_http_echo_module
+--- config
+    location /t {
+        proxy_wasm hostcalls 'on_configure=define_metrics \
+                              metrics=h1';
         echo ok;
     }
 --- grep_error_log eval: qr/\["hostcalls" \#\d\] defined metric \w+ as \d+/
 --- grep_error_log_out eval
-qr/.*? defined metric c1 as \d+
-.*? defined metric g1 as \d+
-.*? defined metric h1 as \d+/
+qr/.*? defined metric h1 as \d+/
 --- no_error_log
 [error]
 [crit]
@@ -39,7 +79,7 @@ qr/.*? defined metric c1 as \d+
 
 
 
-=== TEST 2: proxy_wasm - define_metric() redefinition
+=== TEST 4: proxy_wasm - define_metric() redefinition
 Definition happens only once, a second call defining an existing metric simply
 returns its id.