[MM-62408] Server Code Coverage with Fully Parallel Tests (#30078)

* TestPool

* Store infra

* Store tests updates

* Bump maximum concurrent postgres connections

* More infra

* channels/jobs

* channels/app

* channels/api4

* Protect i18n from concurrent access

* Replace some use of os.Setenv

* Remove debug

* Lint fixes

* Fix more linting

* Fix test

* Remove use of Setenv in drafts tests

* Fix flaky TestWebHubCloseConnOnDBFail

* Fix merge

* [MM-62408] Add CI job to generate test coverage (#30284)

* Add CI job to generate test coverage

* Remove use of Setenv in drafts tests

* Fix flaky TestWebHubCloseConnOnDBFail

* Fix more Setenv usage

* Fix more potential flakyness

* Remove parallelism from flaky test

* Remove conflicting env var

* Fix

* Disable parallelism

* Test atomic covermode

* Disable parallelism

* Enable parallelism

* Add upload coverage step

* Fix codecov.yml

* Add codecov.yml

* Remove redundant workspace field

* Add Parallel() util methods and refactor

* Fix formatting

* More formatting fixes

* Fix reporting

server/channels/api4/drafts_test.go

@@ -5,7 +5,6 @@ package api4
 
 import (
 	"context"
-	"os"
 	"testing"
 	"time"
 
@@ -17,10 +16,7 @@ import (
 )
 
 func TestUpsertDraft(t *testing.T) {
-	os.Setenv("MM_FEATUREFLAGS_GLOBALDRAFTS", "true")
-	defer os.Unsetenv("MM_FEATUREFLAGS_GLOBALDRAFTS")
-	os.Setenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS", "true")
-	defer os.Unsetenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS")
+	mainHelper.Parallel(t)
 
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
@@ -76,8 +72,6 @@ func TestUpsertDraft(t *testing.T) {
 	CheckForbiddenStatus(t, resp)
 
 	// try to upsert draft without config setting set to true
-	os.Setenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS", "false")
-	defer os.Unsetenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS")
 	th.App.UpdateConfig(func(cfg *model.Config) { *cfg.ServiceSettings.AllowSyncedDrafts = false })
 
 	_, resp, err = client.UpsertDraft(context.Background(), draft)
@@ -86,10 +80,7 @@ func TestUpsertDraft(t *testing.T) {
 }
 
 func TestGetDrafts(t *testing.T) {
-	os.Setenv("MM_FEATUREFLAGS_GLOBALDRAFTS", "true")
-	defer os.Unsetenv("MM_FEATUREFLAGS_GLOBALDRAFTS")
-	os.Setenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS", "true")
-	defer os.Unsetenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS")
+	mainHelper.Parallel(t)
 
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
@@ -149,8 +140,6 @@ func TestGetDrafts(t *testing.T) {
 	CheckForbiddenStatus(t, resp)
 
 	// try to get drafts when config is turned off
-	os.Setenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS", "false")
-	defer os.Unsetenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS")
 	th.App.UpdateConfig(func(cfg *model.Config) { *cfg.ServiceSettings.AllowSyncedDrafts = false })
 	_, resp, err = client.GetDrafts(context.Background(), user.Id, team.Id)
 	require.Error(t, err)
@@ -158,10 +147,7 @@ func TestGetDrafts(t *testing.T) {
 }
 
 func TestDeleteDraft(t *testing.T) {
-	os.Setenv("MM_FEATUREFLAGS_GLOBALDRAFTS", "true")
-	defer os.Unsetenv("MM_FEATUREFLAGS_GLOBALDRAFTS")
-	os.Setenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS", "true")
-	defer os.Unsetenv("MM_SERVICESETTINGS_ALLOWSYNCEDDRAFTS")
+	mainHelper.Parallel(t)
 
 	th := Setup(t).InitBasic()
 	defer th.TearDown()
@@ -201,7 +187,7 @@ func TestDeleteDraft(t *testing.T) {
 	_, _, err = client.UpsertDraft(context.Background(), draft2)
 	require.NoError(t, err)
 
-	//get drafts
+	// get drafts
 	draftResp, _, err := client.GetDrafts(context.Background(), user.Id, team.Id)
 	require.NoError(t, err)
 
@@ -217,7 +203,7 @@ func TestDeleteDraft(t *testing.T) {
 	_, _, err = client.DeleteDraft(context.Background(), user.Id, channel1.Id, draft1.RootId)
 	require.NoError(t, err)
 
-	//get drafts
+	// get drafts
 	draftResp, _, err = client.GetDrafts(context.Background(), user.Id, team.Id)
 	require.NoError(t, err)