Fixes from testing with serial modem

Author: ed7coyne

SerialTransceiver.cpp

@@ -51,6 +51,8 @@ std::unique_ptr<Command> SerialTransceiver::CreateCommand(const String& text,
     command.reset(new PushCommand(fbase));
   } else if (text == "REMOVE") {
     command.reset(new RemoveCommand(fbase));
+  } else if (text == "BEGIN_STREAM") {
+    command.reset(new StreamCommand(fbase));
   }
   return command;
 }

modem/stream-command.cpp

@@ -36,6 +36,7 @@ bool StreamCommand::execute(const String& command,
     } else if (in->available()) {
       String command = in->readLine();
       if (command == "END_STREAM") {
+        out->println("+OK");
         running = false;
       } else {
         out->println("-FAIL Cannot call any command but END_STREAM.");

modem/test/stream-command_test.cpp

@@ -46,7 +46,6 @@ TEST_F(StreamCommandTest, streams) {
       .WillOnce(Return(path))
       .WillOnce(Return("END_STREAM"));
 
-
   const String value("Test value");
   EXPECT_CALL(*stream_, available())
       .WillOnce(Return(true))
@@ -70,6 +69,9 @@ TEST_F(StreamCommandTest, streams) {
   EXPECT_CALL(out_, println(value))
       .WillOnce(Return(1));
 
+  EXPECT_CALL(out_, println(String("+OK")))
+      .WillOnce(Return(1));
+
   ASSERT_TRUE(RunCommand(FirebaseError()));
 }