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343 lines
13 KiB
JavaScript
343 lines
13 KiB
JavaScript
import * as utils from "../../src/utils";
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import {
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alphabetPad,
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averageBetweenStrings,
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baseToString,
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DEFAULT_ALPHABET,
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nextString,
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prevString,
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stringToBase,
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} from "../../src/utils";
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describe("utils", function() {
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describe("encodeParams", function() {
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it("should url encode and concat with &s", function() {
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const params = {
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foo: "bar",
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baz: "beer@",
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};
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expect(utils.encodeParams(params)).toEqual(
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"foo=bar&baz=beer%40",
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);
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});
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});
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describe("encodeUri", function() {
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it("should replace based on object keys and url encode", function() {
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const path = "foo/bar/%something/%here";
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const vals = {
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"%something": "baz",
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"%here": "beer@",
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};
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expect(utils.encodeUri(path, vals)).toEqual(
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"foo/bar/baz/beer%40",
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);
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});
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});
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describe("removeElement", function() {
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it("should remove only 1 element if there is a match", function() {
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const matchFn = function() {
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return true;
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};
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const arr = [55, 66, 77];
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utils.removeElement(arr, matchFn);
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expect(arr).toEqual([66, 77]);
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});
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it("should be able to remove in reverse order", function() {
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const matchFn = function() {
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return true;
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};
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const arr = [55, 66, 77];
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utils.removeElement(arr, matchFn, true);
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expect(arr).toEqual([55, 66]);
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});
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it("should remove nothing if the function never returns true", function() {
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const matchFn = function() {
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return false;
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};
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const arr = [55, 66, 77];
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utils.removeElement(arr, matchFn);
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expect(arr).toEqual(arr);
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});
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});
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describe("isFunction", function() {
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it("should return true for functions", function() {
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expect(utils.isFunction([])).toBe(false);
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expect(utils.isFunction([5, 3, 7])).toBe(false);
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expect(utils.isFunction()).toBe(false);
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expect(utils.isFunction(null)).toBe(false);
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expect(utils.isFunction({})).toBe(false);
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expect(utils.isFunction("foo")).toBe(false);
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expect(utils.isFunction(555)).toBe(false);
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expect(utils.isFunction(function() {})).toBe(true);
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const s = { foo: function() {} };
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expect(utils.isFunction(s.foo)).toBe(true);
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});
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});
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describe("checkObjectHasKeys", function() {
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it("should throw for missing keys", function() {
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expect(function() {
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utils.checkObjectHasKeys({}, ["foo"]);
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}).toThrow();
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expect(function() {
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utils.checkObjectHasKeys({
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foo: "bar",
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}, ["foo"]);
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}).not.toThrow();
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});
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});
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describe("checkObjectHasNoAdditionalKeys", function() {
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it("should throw for extra keys", function() {
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expect(function() {
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utils.checkObjectHasNoAdditionalKeys({
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foo: "bar",
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baz: 4,
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}, ["foo"]);
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}).toThrow();
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expect(function() {
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utils.checkObjectHasNoAdditionalKeys({
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foo: "bar",
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}, ["foo"]);
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}).not.toThrow();
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});
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});
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describe("deepCompare", function() {
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const assert = {
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isTrue: function(x) {
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expect(x).toBe(true);
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},
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isFalse: function(x) {
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expect(x).toBe(false);
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},
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};
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it("should handle primitives", function() {
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assert.isTrue(utils.deepCompare(null, null));
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assert.isFalse(utils.deepCompare(null, undefined));
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assert.isTrue(utils.deepCompare("hi", "hi"));
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assert.isTrue(utils.deepCompare(5, 5));
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assert.isFalse(utils.deepCompare(5, 10));
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});
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it("should handle regexps", function() {
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assert.isTrue(utils.deepCompare(/abc/, /abc/));
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assert.isFalse(utils.deepCompare(/abc/, /123/));
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const r = /abc/;
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assert.isTrue(utils.deepCompare(r, r));
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});
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it("should handle dates", function() {
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assert.isTrue(utils.deepCompare(new Date("2011-03-31"),
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new Date("2011-03-31")));
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assert.isFalse(utils.deepCompare(new Date("2011-03-31"),
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new Date("1970-01-01")));
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});
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it("should handle arrays", function() {
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assert.isTrue(utils.deepCompare([], []));
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assert.isTrue(utils.deepCompare([1, 2], [1, 2]));
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assert.isFalse(utils.deepCompare([1, 2], [2, 1]));
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assert.isFalse(utils.deepCompare([1, 2], [1, 2, 3]));
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});
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it("should handle simple objects", function() {
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assert.isTrue(utils.deepCompare({}, {}));
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assert.isTrue(utils.deepCompare({ a: 1, b: 2 }, { a: 1, b: 2 }));
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assert.isTrue(utils.deepCompare({ a: 1, b: 2 }, { b: 2, a: 1 }));
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assert.isFalse(utils.deepCompare({ a: 1, b: 2 }, { a: 1, b: 3 }));
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assert.isTrue(utils.deepCompare({ 1: { name: "mhc", age: 28 },
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2: { name: "arb", age: 26 } },
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{ 1: { name: "mhc", age: 28 },
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2: { name: "arb", age: 26 } }));
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assert.isFalse(utils.deepCompare({ 1: { name: "mhc", age: 28 },
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2: { name: "arb", age: 26 } },
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{ 1: { name: "mhc", age: 28 },
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2: { name: "arb", age: 27 } }));
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assert.isFalse(utils.deepCompare({}, null));
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assert.isFalse(utils.deepCompare({}, undefined));
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});
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it("should handle functions", function() {
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// no two different function is equal really, they capture their
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// context variables so even if they have same toString(), they
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// won't have same functionality
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const func = function(x) {
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return true;
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};
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const func2 = function(x) {
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return true;
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};
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assert.isTrue(utils.deepCompare(func, func));
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assert.isFalse(utils.deepCompare(func, func2));
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assert.isTrue(utils.deepCompare({ a: { b: func } }, { a: { b: func } }));
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assert.isFalse(utils.deepCompare({ a: { b: func } }, { a: { b: func2 } }));
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});
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});
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describe("extend", function() {
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const SOURCE = { "prop2": 1, "string2": "x", "newprop": "new" };
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it("should extend", function() {
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const target = {
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"prop1": 5, "prop2": 7, "string1": "baz", "string2": "foo",
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};
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const merged = {
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"prop1": 5, "prop2": 1, "string1": "baz", "string2": "x",
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"newprop": "new",
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};
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const sourceOrig = JSON.stringify(SOURCE);
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utils.extend(target, SOURCE);
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expect(JSON.stringify(target)).toEqual(JSON.stringify(merged));
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// check the originial wasn't modified
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expect(JSON.stringify(SOURCE)).toEqual(sourceOrig);
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});
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it("should ignore null", function() {
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const target = {
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"prop1": 5, "prop2": 7, "string1": "baz", "string2": "foo",
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};
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const merged = {
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"prop1": 5, "prop2": 1, "string1": "baz", "string2": "x",
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"newprop": "new",
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};
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const sourceOrig = JSON.stringify(SOURCE);
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utils.extend(target, null, SOURCE);
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expect(JSON.stringify(target)).toEqual(JSON.stringify(merged));
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// check the originial wasn't modified
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expect(JSON.stringify(SOURCE)).toEqual(sourceOrig);
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});
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it("should handle properties created with defineProperties", function() {
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const source = Object.defineProperties({}, {
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"enumerableProp": {
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get: function() {
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return true;
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},
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enumerable: true,
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},
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"nonenumerableProp": {
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get: function() {
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return true;
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},
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},
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});
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const target = {};
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utils.extend(target, source);
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expect(target.enumerableProp).toBe(true);
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expect(target.nonenumerableProp).toBe(undefined);
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});
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});
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describe("chunkPromises", function() {
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it("should execute promises in chunks", async function() {
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let promiseCount = 0;
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function fn1() {
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return new Promise(async function(resolve, reject) {
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await utils.sleep(1);
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expect(promiseCount).toEqual(0);
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++promiseCount;
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resolve();
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});
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}
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function fn2() {
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return new Promise(function(resolve, reject) {
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expect(promiseCount).toEqual(1);
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++promiseCount;
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resolve();
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});
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}
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await utils.chunkPromises([fn1, fn2], 1);
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expect(promiseCount).toEqual(2);
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});
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});
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describe('DEFAULT_ALPHABET', () => {
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it('should be usefully printable ASCII in order', () => {
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expect(DEFAULT_ALPHABET).toEqual(
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" !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~",
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);
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});
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});
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describe('alphabetPad', () => {
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it('should pad to the alphabet length', () => {
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const defaultPrefixFor1char = [""].reduce(() => {
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let s = "";
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for (let i = 0; i < DEFAULT_ALPHABET.length - 1; i++) {
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s += DEFAULT_ALPHABET[0];
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}
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return s;
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}, "");
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expect(alphabetPad("a")).toEqual(defaultPrefixFor1char + "a");
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expect(alphabetPad("a", "123")).toEqual("11a");
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});
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});
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describe('baseToString', () => {
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it('should calculate the appropriate string from numbers', () => {
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expect(baseToString(10)).toEqual(DEFAULT_ALPHABET[10]);
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expect(baseToString(10, "abcdefghijklmnopqrstuvwxyz")).toEqual('k');
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expect(baseToString(6241)).toEqual("ab");
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expect(baseToString(53, "abcdefghijklmnopqrstuvwxyz")).toEqual('cb');
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});
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});
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describe('stringToBase', () => {
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it('should calculate the appropriate number for a string', () => {
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expect(stringToBase(" ")).toEqual(0);
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expect(stringToBase("a", "abcdefghijklmnopqrstuvwxyz")).toEqual(0);
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expect(stringToBase("a")).toEqual(65);
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expect(stringToBase("c", "abcdefghijklmnopqrstuvwxyz")).toEqual(2);
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expect(stringToBase("ab")).toEqual(6241);
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expect(stringToBase("cb", "abcdefghijklmnopqrstuvwxyz")).toEqual(53);
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});
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});
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describe('averageBetweenStrings', () => {
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it('should average appropriately', () => {
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expect(averageBetweenStrings('A', 'z')).toEqual(']');
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expect(averageBetweenStrings('a', 'z', "abcdefghijklmnopqrstuvwxyz")).toEqual('m');
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expect(averageBetweenStrings('AA', 'zz')).toEqual('^.');
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expect(averageBetweenStrings('aa', 'zz', "abcdefghijklmnopqrstuvwxyz")).toEqual('mz');
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expect(averageBetweenStrings('cat', 'doggo')).toEqual("BH65B");
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expect(averageBetweenStrings('cat', 'doggo', "abcdefghijklmnopqrstuvwxyz")).toEqual("buedq");
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});
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});
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describe('nextString', () => {
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it('should find the next string appropriately', () => {
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expect(nextString('A')).toEqual('B');
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expect(nextString('b', 'abcdefghijklmnopqrstuvwxyz')).toEqual('c');
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expect(nextString('cat')).toEqual('cau');
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expect(nextString('cat', 'abcdefghijklmnopqrstuvwxyz')).toEqual('cau');
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});
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});
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describe('prevString', () => {
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it('should find the next string appropriately', () => {
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expect(prevString('B')).toEqual('A');
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expect(prevString('c', 'abcdefghijklmnopqrstuvwxyz')).toEqual('b');
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expect(prevString('cau')).toEqual('cat');
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expect(prevString('cau', 'abcdefghijklmnopqrstuvwxyz')).toEqual('cat');
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});
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});
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});
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