Add test of parsing weighted_cluster route configuration to improve test coverage. (#6711)
Add test of parsing weighted_cluster route configuration to improve test coverage. (#6711)

Signed-off-by: Yan Avlasov <afb66d2748ba0362a3ca849f18f55b7a7959dce3@google.com>
envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,lizan/envoy,jrajahalme/envoy,jrajahalme/envoy,lizan/envoy,envoyproxy/envoy,lizan/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,istio/envoy,istio/envoy,istio/envoy,eklitzke/envoy,envoyproxy/envoy,eklitzke/envoy,lyft/envoy,istio/envoy,envoyproxy/envoy,envoyproxy/envoy,lizan/envoy,lizan/envoy,lizan/envoy,lyft/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy,istio/envoy,jrajahalme/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy-wasm,envoyproxy/envoy,envoyproxy/envoy,eklitzke/envoy,lyft/envoy,eklitzke/envoy,jrajahalme/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy-wasm,istio/envoy,eklitzke/envoy,jrajahalme/envoy,jrajahalme/envoy,eklitzke/envoy,lyft/envoy