tests: adjust env variables

cae repo uses RE_FAULT_INJECTOR_URL for fault injector
DATABASE_NAME is needed to choose from the many databases in cae

Author: nkaradzhov

packages/client/lib/tests/test-scenario/test-scenario.util.ts

@@ -43,13 +43,13 @@ export function getEnvConfig(): EnvConfig {
     );
   }
 
-  if (!process.env.FAULT_INJECTION_API_URL) {
-    throw new Error("FAULT_INJECTION_API_URL environment variable must be set");
+  if (!process.env.RE_FAULT_INJECTOR_URL) {
+    throw new Error("RE_FAULT_INJECTOR_URL environment variable must be set");
   }
 
   return {
     redisEndpointsConfigPath: process.env.REDIS_ENDPOINTS_CONFIG_PATH,
-    faultInjectorUrl: process.env.FAULT_INJECTION_API_URL,
+    faultInjectorUrl: process.env.RE_FAULT_INJECTOR_URL,
   };
 }
 
@@ -86,7 +86,7 @@ export interface RedisConnectionConfig {
  */
 export function getDatabaseConfig(
   databasesConfig: DatabasesConfig,
-  databaseName?: string
+  databaseName = process.env.DATABASE_NAME
 ): RedisConnectionConfig {
   const dbConfig = databaseName
     ? databasesConfig[databaseName]