How do I use makefile to test my shell implementation?

Question

Here is my current makefile, which does not run test correctly:

shell2: shell2.o
shell2.o: shell2.c

clean:    
        rm -f *.o 

test: shell2
        ./shell2 
        pwd 
        ./shell2
        cd ..
        ./shell2
        jobs
        ./shell2
        sleep 100 &
        jobs
        ./shell2
        exit

My program tests for newline to know when a command has been entered. This is the output of my program when I compile it myself manually:

$ pwd
/students/8/[redacted]/[redacted]/Shell2
$ cd ..
$ jobs
Jobs:
$ sleep 1000 &
To the background: 20203
$ jobs
Jobs:
20203
$ jobs
Jobs:
20203
$ killall sleep
sleep(17014): Operation not permitted
sleep(17305): Operation not permitted
sleep(17433): Operation not permitted
sleep(19741): Operation not permitted
sleep(19841): Operation not permitted
sleep(20041): Operation not permitted
sleep(20183): Operation not permitted
$ jobs
Jobs:
$ exit
now exiting...

Here is the output when I run make test:

make test
./shell2 
$ pwd
/students/8/[redacted]/[redacted]/Shell2
./shell2
$ cd ..
./shell2
$ jobs
make: jobs: Command not found
make: *** [test] Error 127

Also, I have to hit ctrl+D every time for a new line to execute during make test.

I'm trying to write this makefile for my class so that I can submit my assignment, my professor did not explain at all how to use a makefile besides the basic ./a.out [input command]

He never explained how to use a makefile in the case that your program is running on a continuous loop like a shell is, waiting for the user to press [enter] or new line for the command to be parsed.

I checked the GNU man for make but it didn't explain much in the "testing" section.

Thanks for your help, I really appreciate it.

test_input.txt's output:

./shell2 < test_input.txt
"Sending command: pwd"
/students/8/[redacted]/[redacted]/Shell2
"Sending command: cd .."
"Sending command: pwd"
/students/8/[redacted]/[redacted]
"Sending command: jobs"
$ $ $ $ $ $ $ $ Jobs:
$ 
"Sending command: sleep 1000 &"
$ $ To the background: 27199
"jobs"
$ $ Jobs:
27199
$ 
"Sending command: killall sleep"
$ $ $ $ Jobs:
"Sending command: jobs"
$ $ now exiting...
"exit"

test_input.txt:

echo "Sending command: pwd"
pwd
echo "Sending command: cd .."
cd ..
echo "Sending command: pwd"
pwd
echo "Sending command: jobs"
jobs

echo "Sending command: sleep 1000 &"
sleep 1000 &
echo "jobs"
jobs

echo "Sending command: killall sleep"
killall sleep
echo "Sending command: jobs"
jobs
echo "exit"
exit

Answer 1

It looks like you're trying to supply input to your program. You can't do this with make (directly) as make simply executes each line with /bin/sh -c COMMAND .

What you can do is

test: shell2
    ./shell2 < test_input.txt

to redirect input to the file test_input.txt , which would contain the commands you want.