Improve testing init, clean up webhook tests (#37412)

Avoid webhook test fixtures affect other tests (be triggered)

Also fixed more testing problems including path init, global config
pollution & conflict

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: wxiaoguang <2114189+wxiaoguang@users.noreply.github.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>

routers/api/v1/repo/hook_test.go

@@ -5,8 +5,10 @@ package repo
 
 import (
 	"net/http"
+	"strconv"
 	"testing"
 
+	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/unittest"
 	"code.gitea.io/gitea/models/webhook"
 	"code.gitea.io/gitea/services/contexttest"
@@ -17,8 +19,17 @@ import (
 func TestTestHook(t *testing.T) {
 	unittest.PrepareTestEnv(t)
 
+	hook := &webhook.Webhook{
+		RepoID:      1,
+		URL:         "https://www.example.com/test_hook",
+		ContentType: webhook.ContentTypeJSON,
+		Events:      `{"push_only":true}`,
+		IsActive:    true,
+	}
+	assert.NoError(t, db.Insert(t.Context(), hook))
+
 	ctx, _ := contexttest.MockAPIContext(t, "user2/repo1/wiki/_pages")
-	ctx.SetPathParam("id", "1")
+	ctx.SetPathParam("id", strconv.FormatInt(hook.ID, 10))
 	contexttest.LoadRepo(t, ctx, 1)
 	contexttest.LoadRepoCommit(t, ctx)
 	contexttest.LoadUser(t, ctx, 2)
@@ -26,6 +37,6 @@ func TestTestHook(t *testing.T) {
 	assert.Equal(t, http.StatusNoContent, ctx.Resp.WrittenStatus())
 
 	unittest.AssertExistsAndLoadBean(t, &webhook.HookTask{
-		HookID: 1,
+		HookID: hook.ID,
 	}, unittest.Cond("is_delivered=?", false))
 }