Merge pull request #2542 from murgatroid99/grpc-js-xds_config_parsing_tests

grpc-js-xds: Add config parsing tests

Author: murgatroid99

packages/grpc-js-xds/src/load-balancer-cds.ts

@@ -65,11 +65,10 @@ class CdsLoadBalancingConfig implements TypedLoadBalancingConfig {
   }
 
   static createFromJson(obj: any): CdsLoadBalancingConfig {
-    if ('cluster' in obj) {
-      return new CdsLoadBalancingConfig(obj.cluster);
-    } else {
-      throw new Error('Missing "cluster" in cds load balancing config');
+    if (!('cluster' in obj && typeof obj.cluster === 'string')) {
+      throw new Error('cds config must have a string field cluster');
     }
+    return new CdsLoadBalancingConfig(obj.cluster);
   }
 }
 

packages/grpc-js-xds/src/load-balancer-lrs.ts

@@ -46,7 +46,7 @@ class LrsLoadBalancingConfig implements TypedLoadBalancingConfig {
       [TYPE_NAME]: {
         cluster_name: this.clusterName,
         eds_service_name: this.edsServiceName,
-        lrs_load_reporting_server_name: this.lrsLoadReportingServer,
+        lrs_load_reporting_server: this.lrsLoadReportingServer,
         locality: this.locality,
         child_policy: [this.childPolicy.toJsonObject()]
       }
@@ -97,6 +97,9 @@ class LrsLoadBalancingConfig implements TypedLoadBalancingConfig {
     if (!('child_policy' in obj && Array.isArray(obj.child_policy))) {
       throw new Error('lrs config must have a child_policy array');
     }
+    if (!('lrs_load_reporting_server' in obj && obj.lrs_load_reporting_server !== null && typeof obj.lrs_load_reporting_server === 'object')) {
+      throw new Error('lrs config must have an object field lrs_load_reporting_server');
+    }
     const childConfig = selectLbConfigFromList(obj.child_policy);
     if (!childConfig) {
       throw new Error('lrs config child_policy parsing failed');

packages/grpc-js-xds/src/load-balancer-priority.ts

@@ -81,7 +81,8 @@ class PriorityLoadBalancingConfig implements TypedLoadBalancingConfig {
     const childrenField: {[key: string]: object} = {}
     for (const [childName, childValue] of this.children.entries()) {
       childrenField[childName] = {
-        config: [childValue.config.toJsonObject()]
+        config: [childValue.config.toJsonObject()],
+        ignore_reresolution_requests: childValue.ignore_reresolution_requests
       };
     }
     return {

packages/grpc-js-xds/src/xds-bootstrap.ts

@@ -112,6 +112,9 @@ const SUPPORTED_CHANNEL_CREDS_TYPES = [
 ];
 
 export function validateXdsServerConfig(obj: any): XdsServerConfig {
+  if (!(typeof obj === 'object' && obj !== null)) {
+    throw new Error('xDS server config must be an object');
+  }
   if (!('server_uri' in obj)) {
     throw new Error('server_uri field missing in xds_servers element');
   }