test(client): increase timeout for windows

also:

* only test stable go version on windows

.github/workflows/tests.yml

@@ -37,9 +37,6 @@ jobs:
         run: go test -race ./...
 
   ut-windows:
-    strategy:
-      matrix:
-        version: ["1.20", "1.21", "1.22", "1.23"]
     runs-on: windows-latest
     env: # Fixes https://github.com/actions/setup-go/issues/240
       GOMODCACHE: 'D:\go\pkg\mod'
@@ -49,13 +46,13 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: ${{ matrix.version }}
+          go-version: stable
 
       - name: Unit Test
         run: go test -race ./...
 
   code-cov:
-    runs-on: [self-hosted, X64]
+    runs-on: [self-hosted, Linux, X64]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Go
@@ -71,7 +68,7 @@ jobs:
         run: bash <(curl -s https://codecov.io/bash)
 
   hz-test-unix:
-    runs-on: [ self-hosted, X64 ]
+    runs-on: [ self-hosted, Linux, X64 ]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Go

pkg/app/client/client_test.go

@@ -57,6 +57,7 @@ import (
 	"path/filepath"
 	"reflect"
 	"regexp"
+	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -457,7 +458,12 @@ func TestClientReadTimeout(t *testing.T) {
 	engine := route.NewEngine(opt)
 
 	readtimeout := 50 * time.Millisecond
-	sleeptime := 75 * time.Millisecond // must > readtimeout
+	if runtime.GOOS == "windows" {
+		// XXX: The windows CI instance powered by Github is quite unstable.
+		// Increase readtimeout here for better testing stability.
+		readtimeout = 2 * readtimeout
+	}
+	sleeptime := readtimeout + readtimeout/2 // must > readtimeout
 
 	engine.GET("/normal", func(c context.Context, ctx *app.RequestContext) {
 		ctx.String(201, "ok")