[MM-13833] Configured unit tests to log through t.Log (#10272)

* Rerouted the unit test logs through t.Log

* resolving merge confilvts

* Update testing.go

* Update helper_test.go

* Added godocs for NewTestingLogger

* Added go docs for NewTestingLogger

* Resolving conflicts

app/user_test.go

@@ -18,11 +18,11 @@ import (
 
 	"github.com/mattermost/mattermost-server/einterfaces"
 	"github.com/mattermost/mattermost-server/model"
-	"github.com/mattermost/mattermost-server/model/gitlab"
+	oauthgitlab "github.com/mattermost/mattermost-server/model/gitlab"
 )
 
 func TestIsUsernameTaken(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	user := th.BasicUser
@@ -43,7 +43,7 @@ func TestIsUsernameTaken(t *testing.T) {
 }
 
 func TestCheckUserDomain(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	user := th.BasicUser
@@ -71,7 +71,7 @@ func TestCheckUserDomain(t *testing.T) {
 }
 
 func TestCreateOAuthUser(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	r := rand.New(rand.NewSource(time.Now().UnixNano()))
@@ -117,7 +117,7 @@ func TestCreateProfileImage(t *testing.T) {
 }
 
 func TestSetDefaultProfileImage(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	err := th.App.SetDefaultProfileImage(&model.User{
@@ -136,7 +136,7 @@ func TestSetDefaultProfileImage(t *testing.T) {
 }
 
 func TestUpdateUserToRestrictedDomain(t *testing.T) {
-	th := Setup()
+	th := Setup(t)
 	defer th.TearDown()
 
 	user := th.CreateUser()
@@ -155,7 +155,7 @@ func TestUpdateUserToRestrictedDomain(t *testing.T) {
 }
 
 func TestUpdateUserActive(t *testing.T) {
-	th := Setup()
+	th := Setup(t)
 	defer th.TearDown()
 
 	user := th.CreateUser()
@@ -173,7 +173,7 @@ func TestUpdateUserActive(t *testing.T) {
 }
 
 func TestUpdateOAuthUserAttrs(t *testing.T) {
-	th := Setup()
+	th := Setup(t)
 	defer th.TearDown()
 
 	id := model.NewId()
@@ -321,7 +321,7 @@ func createGitlabUser(t *testing.T, a *App, username string, email string) (*mod
 }
 
 func TestGetUsersByStatus(t *testing.T) {
-	th := Setup()
+	th := Setup(t)
 	defer th.TearDown()
 
 	team := th.CreateTeam()
@@ -450,7 +450,7 @@ func TestGetUsersByStatus(t *testing.T) {
 }
 
 func TestCreateUserWithToken(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	user := model.User{Email: strings.ToLower(model.NewId()) + "success+test@example.com", Nickname: "Darth Vader", Username: "vader" + model.NewId(), Password: "passwd1", AuthService: ""}
@@ -520,7 +520,7 @@ func TestCreateUserWithToken(t *testing.T) {
 }
 
 func TestPermanentDeleteUser(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	b := []byte("testimage")