test: add testing for missing coverage

library/common/http/dispatcher.cc

@@ -462,8 +462,8 @@ Dispatcher::DirectStreamSharedPtr Dispatcher::getStream(envoy_stream_t stream) {
 }
 
 void Dispatcher::cleanup(envoy_stream_t stream_handle) {
-  ASSERT(TS_UNCHECKED_READ(event_dispatcher_)->isThreadSafe(),
-         "stream cleanup must be performed on the event_dispatcher_'s thread.");
+  RELEASE_ASSERT(TS_UNCHECKED_READ(event_dispatcher_)->isThreadSafe(),
+                 "stream cleanup must be performed on the event_dispatcher_'s thread.");
   Dispatcher::DirectStreamSharedPtr direct_stream = getStream(stream_handle);
   RELEASE_ASSERT(direct_stream,
                  "cleanup is a private method that is only called with stream ids that exist");

library/common/http/dispatcher.h

@@ -113,8 +113,10 @@ class Dispatcher : public Logger::Loggable<Logger::Id::http> {
     Stream& getStream() override;
     Http1StreamEncoderOptionsOptRef http1StreamEncoderOptions() override { return absl::nullopt; }
     // TODO: implement
-    void encode100ContinueHeaders(const ResponseHeaderMap&) override {}
-    void encodeMetadata(const MetadataMapVector&) override {}
+    void encode100ContinueHeaders(const ResponseHeaderMap&) override {
+      NOT_IMPLEMENTED_GCOVR_EXCL_LINE;
+    }
+    void encodeMetadata(const MetadataMapVector&) override { NOT_IMPLEMENTED_GCOVR_EXCL_LINE; }
 
   private:
     DirectStream& direct_stream_;
@@ -145,7 +147,7 @@ class Dispatcher : public Logger::Loggable<Logger::Id::http> {
       return parent_.address_;
     }
     // TODO: stream watermark control.
-    void readDisable(bool) override {}
+    void readDisable(bool) override { NOT_IMPLEMENTED_GCOVR_EXCL_LINE; }
     uint32_t bufferLimit() override { return 65000; }
 
     void closeLocal(bool end_stream);

library/common/network/synthetic_address_impl.h

@@ -47,7 +47,7 @@ class SyntheticAddressImpl : public Instance {
 
   Type type() const {
     // TODO(junr03): consider adding another type of address.
-    return Address::Type::Ip;
+    return Type::Ip;
   }
 
 private: