[MM-28033] Perform localcachelayer tests for one DB type only when in CI (#15433)

* Perform localcachelayer tests for one DB type only if in CI

* Add newStoreType() for sqlstore case

store/localcachelayer/layer_test.go

@@ -4,6 +4,7 @@
 package localcachelayer
 
 import (
+	"os"
 	"sync"
 	"testing"
 
@@ -22,6 +23,13 @@ type storeType struct {
 
 var storeTypes []*storeType
 
+func newStoreType(name, driver string) *storeType {
+	return &storeType{
+		Name:        name,
+		SqlSettings: storetest.MakeSqlSettings(driver),
+	}
+}
+
 func StoreTest(t *testing.T, f func(*testing.T, store.Store)) {
 	defer func() {
 		if err := recover(); err != nil {
@@ -62,14 +70,20 @@ func initStores() {
 	if testing.Short() {
 		return
 	}
-	storeTypes = append(storeTypes, &storeType{
-		Name:        "LocalCache+MySQL",
-		SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_MYSQL),
-	})
-	storeTypes = append(storeTypes, &storeType{
-		Name:        "LocalCache+PostgreSQL",
-		SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_POSTGRES),
-	})
+
+	// In CI, we already run the entire test suite for both mysql and postgres in parallel.
+	// So we just run the tests for the current database set.
+	if os.Getenv("IS_CI") == "true" {
+		switch os.Getenv("MM_SQLSETTINGS_DRIVERNAME") {
+		case "mysql":
+			storeTypes = append(storeTypes, newStoreType("LocalCache+MySQL", model.DATABASE_DRIVER_MYSQL))
+		case "postgres":
+			storeTypes = append(storeTypes, newStoreType("LocalCache+PostgreSQL", model.DATABASE_DRIVER_POSTGRES))
+		}
+	} else {
+		storeTypes = append(storeTypes, newStoreType("LocalCache+MySQL", model.DATABASE_DRIVER_MYSQL),
+			newStoreType("LocalCache+PostgreSQL", model.DATABASE_DRIVER_POSTGRES))
+	}
 
 	defer func() {
 		if err := recover(); err != nil {

store/sqlstore/store_test.go

@@ -23,6 +23,13 @@ type storeType struct {
 
 var storeTypes []*storeType
 
+func newStoreType(name, driver string) *storeType {
+	return &storeType{
+		Name:        name,
+		SqlSettings: storetest.MakeSqlSettings(driver),
+	}
+}
+
 func StoreTest(t *testing.T, f func(*testing.T, store.Store)) {
 	defer func() {
 		if err := recover(); err != nil {
@@ -86,25 +93,13 @@ func initStores() {
 	if os.Getenv("IS_CI") == "true" {
 		switch os.Getenv("MM_SQLSETTINGS_DRIVERNAME") {
 		case "mysql":
-			storeTypes = append(storeTypes, &storeType{
-				Name:        "MySQL",
-				SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_MYSQL),
-			})
+			storeTypes = append(storeTypes, newStoreType("MySQL", model.DATABASE_DRIVER_MYSQL))
 		case "postgres":
-			storeTypes = append(storeTypes, &storeType{
-				Name:        "PostgreSQL",
-				SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_POSTGRES),
-			})
+			storeTypes = append(storeTypes, newStoreType("PostgreSQL", model.DATABASE_DRIVER_POSTGRES))
 		}
 	} else {
-		storeTypes = append(storeTypes, &storeType{
-			Name:        "MySQL",
-			SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_MYSQL),
-		})
-		storeTypes = append(storeTypes, &storeType{
-			Name:        "PostgreSQL",
-			SqlSettings: storetest.MakeSqlSettings(model.DATABASE_DRIVER_POSTGRES),
-		})
+		storeTypes = append(storeTypes, newStoreType("MySQL", model.DATABASE_DRIVER_MYSQL),
+			newStoreType("PostgreSQL", model.DATABASE_DRIVER_POSTGRES))
 	}
 
 	defer func() {