Error occurred when running unit tests with the command monkeydo in vscode's terminal?

From the documentation you reference in your screenshot above, but about one paragraph further down...

Run the App: Use the monkeydo script in your SDK’s bin directory with the /t flag to run the app with unit tests enabled - monkeydo.bat path\to\projects\bin\MyApp.prg /t

You should be using /t but you are passing \t. These are not the same.

Yep, I have seen the command instructions on another page but screenshot this one.

I changed to /t but the problem is not solved.

test: build
	@$(SDK_HOME)/bin/connectiq &&\
	sleep 3 &&\
	$(JAVA_OPTIONS) \
	$(SDK_HOME)/bin/monkeydo bin/$(appName).prg /t  

Is the document deprecated?

$ monkeydo
Pushes and runs a Connect IQ executable on the Connect IQ simulator. The simulator must be running for this command to succeed.

Usage: monkeydo executable device_id [-t | -t test_name]
    executable - A Connect IQ executable to run.
    device_id  - The device to simulate.
    test_name  - When providing the test flag you may specify a specific test name.

test: build
	@$(SDK_HOME)/bin/connectiq &&\
	sleep 3 &&\
	$(JAVA_OPTIONS) \
	$(SDK_HOME)/bin/monkeydo bin/$(appName).prg fr245 -t testCalculateDx
	
	
	
-------------------------	
output is:
Error: Symbol Not Found Error
Details: Failed invoking <symbol>
Stack: 
------------------------------------------------------------------------------
Executing test testCalculateDx...
ERROR
Encountered an app crash.
make: *** [test] Error 2
	

test: build
	@$(SDK_HOME)/bin/connectiq &&\
	sleep 3 &&\
	$(JAVA_OPTIONS) \
	$(SDK_HOME)/bin/monkeydo bin/$(appName).prg /t 

Donesn't work at all

"/t" is for monkeydo.bat (Windows).

"-t" is for monkeydo (MacOS/Linux).

You'll see this if you look at the scripts in the SDK's bin directory.

I suspect it's done this way to follow historical OS conventions. (Although in today's world of cross platform software, many tools use "unix-like" args on both Mac/Linux and Windows versions of the same tool. Even newer Windows-only tools follow the unix convention, which especially makes sense now that Windows ships with a Linux compatibility layer)

Also FYI, in your original example, "\t" is no different than "t" (in that context.)

So what's the correct way to make tests with the command monkeydo  in Macos. I failed with the  command $(SDK_HOME)/bin/monkeydo bin/$(appName).prg fr245 -t testName. The menu Run no evils tests runs poorly in eclipse. I hate to click, looking forward to using command lines to finish build & test & deploy, and so forth.

As you can see, when you ran the command with "-t testCalculateDx", it failed a different way than when you ran with "\t".

Error: Symbol Not Found Error
Details: Failed invoking <symbol>

IOW, it's not an args error this time. As a sanity check, I suggest omitting the test name and having it run all tests. e.g.

 $(SDK_HOME)/bin/monkeydo bin/$(appName).prg fr245 -t

I will try it tonight. Thanks, FlowState.

Error: Symbol Not Found Error
Details: Failed invoking <symbol>
Stack:
------------------------------------------------------------------------------
Executing test testSortExchange...
ERROR
Encountered an app crash.
make: *** [test] Error 2

The command will throw a crash like below. However, I cannot see the error stack. Anyway to inspect it? 

I have checked this discussions already.

https://forums.garmin.com/developer/connect-iq/f/discussion/5009/app-crash-on-device