diff --git a/test/compression.js b/test/compression.js
index c54f061a..def7f367 100644
--- a/test/compression.js
+++ b/test/compression.js
@@ -158,13 +158,15 @@ describe('compression()', function () {
   it('should back-pressure when compressed', function (done) {
     var buf
     var client
-    var drained = false
+    var drained = []
     var resp
     var server = createServer({ threshold: 0 }, function (req, res) {
       resp = res
+
       res.on('drain', function () {
-        drained = true
+        drained.push('first')
       })
+
       res.setHeader('Content-Type', 'text/plain')
       res.write('start')
       pressure()
@@ -179,7 +181,11 @@ describe('compression()', function () {
 
     function complete () {
       if (--wait !== 0) return
-      assert.ok(drained)
+      assert.deepEqual(drained, [
+        'first',
+        'second',
+        'true'
+      ])
       done()
     }
 
@@ -191,9 +197,11 @@ describe('compression()', function () {
       }
 
       resp.on('drain', function () {
-        resp.write('end')
+        drained.push('second')
+        drained.push(String(resp.write('end')))
         resp.end()
       })
+
       resp.on('finish', complete)
       client.resume()
     }
@@ -214,13 +222,15 @@ describe('compression()', function () {
   it('should back-pressure when uncompressed', function (done) {
     var buf
     var client
-    var drained = false
+    var drained = []
     var resp
     var server = createServer({ filter: function () { return false } }, function (req, res) {
       resp = res
+
       res.on('drain', function () {
-        drained = true
+        drained.push('first')
       })
+
       res.setHeader('Content-Type', 'text/plain')
       res.write('start')
       pressure()
@@ -235,7 +245,11 @@ describe('compression()', function () {
 
     function complete () {
       if (--wait !== 0) return
-      assert.ok(drained)
+      assert.deepEqual(drained, [
+        'first',
+        'second',
+        'true'
+      ])
       done()
     }
 
@@ -247,7 +261,8 @@ describe('compression()', function () {
       }
 
       resp.on('drain', function () {
-        resp.write('end')
+        drained.push('second')
+        drained.push(String(resp.write('end')))
         resp.end()
       })
       resp.on('finish', complete)