Fix 500 for GET /teams/:id endpoints (#1811)

* Fix 500 for GET /teams/:id endpoints

* Integration test for GET /team/:id

* Clean up integration test

integrations/api_team_test.go

@@ -0,0 +1,38 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package integrations
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"testing"
+
+	"code.gitea.io/gitea/models"
+	api "code.gitea.io/sdk/gitea"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAPITeam(t *testing.T) {
+	prepareTestEnv(t)
+	teamUser := models.AssertExistsAndLoadBean(t, &models.TeamUser{}).(*models.TeamUser)
+	team := models.AssertExistsAndLoadBean(t, &models.Team{ID: teamUser.TeamID}).(*models.Team)
+	user := models.AssertExistsAndLoadBean(t, &models.User{ID: teamUser.UID}).(*models.User)
+
+	session := loginUser(t, user.Name, "password")
+	url := fmt.Sprintf("/api/v1/teams/%d", teamUser.TeamID)
+	req, err := http.NewRequest("GET", url, nil)
+	assert.NoError(t, err)
+	resp := session.MakeRequest(t, req)
+	assert.EqualValues(t, http.StatusOK, resp.HeaderCode)
+
+	var apiTeam api.Team
+	decoder := json.NewDecoder(bytes.NewBuffer(resp.Body))
+	assert.NoError(t, decoder.Decode(&apiTeam))
+	assert.EqualValues(t, team.ID, apiTeam.ID)
+	assert.Equal(t, team.Name, apiTeam.Name)
+}