All POSTMAN functions that can be used to run tests

postman_tests.js

// pm.globals.clear(); // Be careful with this usage

// Save common tests in a global variable
postman.setGlobalVariable("commonTests", () => {
  pm.test("Common Tests - Response Time", function(){
    pm.expect(pm.response.responseTime).is.lessThan(500);
  });

  pm.test("Common Tests - Content Type", function(){
    pm.expect(pm.response.headers.get('Content-Type')).equals('application/json');
  });
});

// Cleanup
postman.setGlobalVariable("tmp_cleanup", () => {
    const clean = _.keys(pm.environment.toObject())
    _.each(clean, (arrItem) => {
        if (arrItem.startsWith("tmp_")) { // remove all env variables starting with "tmp_"
            pm.environment.unset(arrItem);
        }
    });
    pm.collectionVariables.clear();
});

// Unsetting a value for variable/collection/environment variable
postman.setGlobalVariable("unsetKeyForVarType", (varType, key) => {
    if(varType == "VAR"){
        return pm.variables.unset(key);
    }else if(varType == "COLL"){
        return pm.collectionVariables.unset(key);
    }else{
        return pm.environment.unset(key);
    }
});

// Setting a value for variable/collection/environment variable
postman.setGlobalVariable("setKeyForVarType", (varType, key, currVal) => {
    if(varType == "VAR"){
        return pm.variables.set(key, currVal);
    }else if(varType == "COLL"){
        return pm.collectionVariables.set(key, currVal);
    }else{
        return pm.environment.set(key, currVal);
    }
});

// Fetching a value from variable/collection/environment variable
postman.setGlobalVariable("getValFromVarType", (varType, key) => {
    if(varType == "VAR"){
        return pm.variables.get(key);
    }else if(varType == "COLL"){
        return pm.collectionVariables.get(key);
    }else{
        return pm.environment.get(key);
    }
});

// Add Id of created object to variable
postman.setGlobalVariable("addIdOfCreatedObject", (varType, key, val) => {
    var currVal = eval(globals.getValFromVarType)(varType, key);
    if(currVal == undefined){
        currVal = val;
    }else{
        currVal = currVal + "," + val;
    }
    eval(globals.setKeyForVarType)(varType, key, currVal);
});

// Get single object from variable
postman.setGlobalVariable("getObjIdForKey", (varType, key) => {
    var currVal = eval(globals.getValFromVarType)(varType, key);
    if(currVal == undefined){
        return false;
    }
    var currValArr = currVal.split(",");
    return currValArr.shift();
});

// Remove Id of deleted object from variable
postman.setGlobalVariable("remIdOfDeletedObject", (varType, key, val) => {
    var currVal = eval(globals.getValFromVarType)(varType, key);
    if(currVal == undefined){
        return false;
    }
    currValArr = currVal.split(",");
    var index = currValArr.indexOf(val);
    if (index !== -1) {
        currValArr.splice(index, 1);
    }
    if(currValArr.length > 0){
        eval(globals.setKeyForVarType)(varType, key, currValArr.toString());
    }else{
        eval(globals.unsetKeyForVarType)(varType, key);
    }
});

// If you should execute more
postman.setGlobalVariable("ifExecMore", (varType, methodType, respCode, key, ctrKey) => {
    var execMore = false;
    var err = null;
    var currVal = eval(globals.getValFromVarType)(varType, key);
    var ctrVal = eval(globals.getValFromVarType)(varType, ctrKey);
    if(currVal == undefined || ctrVal == undefined){
        return [true, execMore];
    }
    if(parseInt(currVal) == NaN || parseInt(ctrVal) == NaN){
        return [true, execMore];
    }
    var currValArr = currVal.split(",");
    if(methodType == "POST"){
        if(currValArr.length < ctrVal){
            execMore = true;
        }
        if(execMore && (respCode < 300)){ // allowing 200, 201, etc.
            execMore = true;
        }else if (respCode > 300){
            err = true;
            execMore = false;
        }else{
            execMore = false;
        }
    }else if(methodType == "DELETE"){
        if(currValArr.length > 0){
            execMore = true;
        }
        if(execMore && (respCode < 300)){ // allowing 200, 201, etc.
            execMore = true;
        }else if (respCode > 300){
            err = true;
            execMore = false;
        }else{
            execMore = false;
        }
    }else{
        console.error("Unsupported Method Type supplied to function");
        execMore = false;
    }
    return [err, execMore];
});

eval(globals.tmp_cleanup)();

usage_postman_tests.js

// tmp_cleanup
// In "TEST" part of POSTMAN request
eval(globals.tmp_cleanup)();

// commonTests
// In "TEST" part of POSTMAN request
eval(globals.commonTests)();

// addIdOfCreatedObject
// In "TEST" part of POSTMAN request
eval(globals.addIdOfCreatedObject)("VAR", "sample_created_ids", "newid1");
eval(globals.addIdOfCreatedObject)("COLL", "sample_created_ids", "newid1");
eval(globals.addIdOfCreatedObject)("ENV", "sample_created_ids", "newid1");

// remIdOfDeletedObject
// In "TEST" part of POSTMAN request
eval(globals.remIdOfDeletedObject)("VAR", "sample_created_ids");
eval(globals.remIdOfDeletedObject)("COLL", "sample_created_ids");
eval(globals.remIdOfDeletedObject)("ENV", "sample_created_ids");

// getObjIdForKey
// In "TEST" part of POSTMAN request
var id = eval(globals.getObjIdForKey)("VAR", "sample_created_ids");
var id = eval(globals.getObjIdForKey)("COLL", "sample_created_ids");
var id = eval(globals.getObjIdForKey)("ENV", "sample_created_ids");

// setKeyForVarType
// In "TEST"/"PREREQUEST" part of POSTMAN request
eval(globals.setKeyForVarType)("VAR", "sample_key", "sample_val");
eval(globals.setKeyForVarType)("COLL", "sample_key", "sample_val");
eval(globals.setKeyForVarType)("ENV", "sample_key", "sample_val");

// unsetKeyForVarType
// In "TEST"/"PREREQUEST" part of POSTMAN request
eval(globals.unsetKeyForVarType)("VAR", "sample_key");
eval(globals.unsetKeyForVarType)("COLL", "sample_key");
eval(globals.unsetKeyForVarType)("ENV", "sample_key");

// addIdOfCreatedObject
// In "TEST" part of POSTMAN request
eval(globals.addIdOfCreatedObject)("VAR", "sample_created_ids", "newid1");
eval(globals.addIdOfCreatedObject)("COLL", "sample_created_ids", "newid1");
eval(globals.addIdOfCreatedObject)("ENV", "sample_created_ids", "newid1");

// getValFromVarType
// In "TEST"/"PREREQUEST" part of POSTMAN request
eval(globals.getValFromVarType)("VAR", "sample_key");
eval(globals.getValFromVarType)("COLL", "sample_key");
eval(globals.getValFromVarType)("ENV", "sample_key");

// ifExecMore
// In "TEST" part of POSTMAN request - POST request
var ifExecMoreArr = eval(globals.ifExecMore)("COLL", "POST", pm.response.code, "tmp_ids_str", "tmp_total_objs");
if(ifExecMoreArr[0]){ // error = true
    postman.setNextRequest(null); // stop execution
}else if(!ifExecMoreArr[0] && ifExecMoreArr[1]){ // error = null, execMore = true
    postman.setNextRequest("Create New Object");
}else{ // error = null, execMore = false
    // fall to next request
}

// In "TEST" part of POSTMAN request - DELETE request
var ifExecMoreArr = eval(globals.ifExecMore)("COLL", "DELETE", pm.response.code, "tmp_ids_str", "tmp_total_objs");
if(ifExecMoreArr[0]){ // error = true
    postman.setNextRequest(null); // stop execution
}else if(!ifExecMoreArr[0] && ifExecMoreArr[1]){ // error = null, execMore = true
    postman.setNextRequest("Delete New Object");
}else{ // error = null, execMore = false
    // fall to next request
    eval(globals.tmp_cleanup)(); // put this in the last request
}