// In SERVER-22580, the $substrCP expression was introduced. In this file, we test the error cases
// of this expression.
load("jstests/aggregation/extras/utils.js");  // For assertErrorCode.

(function() {
"use strict";

var coll = db.substrCP;
coll.drop();

// Need an empty document for pipeline.
coll.insert({});

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", 0, "a"]}}}],
                34452,
                "$substrCP" +
                    " does not accept non-numeric types as a length.");

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", 0, NaN]}}}],
                34453,
                "$substrCP" +
                    " does not accept non-integers as a length.");

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", "abc", 3]}}}],
                34450,
                "$substrCP does not accept non-numeric types as a starting index.");

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", 2.2, 3]}}}],
                34451,
                "$substrCP" +
                    " does not accept non-integers as a starting index.");

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", -1, 3]}}}],
                34455,
                "$substrCP " +
                    "does not accept negative integers as inputs.");

assertErrorCode(coll,
                [{$project: {substr: {$substrCP: ["abc", 1, -3]}}}],
                34454,
                "$substrCP " +
                    "does not accept negative integers as inputs.");
}());