Does newman call some kind of system exit?

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1

Does newman call some kind of system exit? I am attempting to call it from a node script. I want to call newman from a loop. This is not the same as calling newman iteratively. I want to make separate calls each time.

My loop iterates only once then the whole process terminates–no errors, a happy end.

My node script looks like this:

for (i = 0; i < argv.calls; i++) { newmanRun(); // This loop executes only once, successfully, then quits. }

// This is how we call newman.
const newmanRun = () => {

return newman.run({ 
    collection: <a_valid_postman_export>,
    reporters: "cli",
    insecure: true,
    iterationCount: argv.iterations
}, function (err) {
    if (err) { throw err; 
    console.log("Interative run complete!");
})

}

Thanks in advance.