@featurevisor/core

import { getTraffic } from "./traffic"; describe("core: Traffic", function () { it("should be a function", function () { expect(typeof getTraffic).toEqual("function"); }); it("should allocate traffic for 100-0 weight on two variations", function () { const result = getTraffic( // parsed variations from YAML [ { value: "on", weight: 100, }, { value: "off", weight: 0, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release undefined, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ { variation: "on", range: [0, 80000], }, ], }, ]); }); it("should allocate traffic for 0-100 weight on two variations", function () { const result = getTraffic( // parsed variations from YAML [ { value: "control", weight: 0, }, { value: "treatment", weight: 100, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release undefined, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ // should be filtered out automatically // { // variation: "control", // range: [0, 0], // }, { variation: "treatment", range: [0, 80000], }, ], }, ]); }); it("should allocate traffic for 0-100 weight on two variations, with rule percentage going from 80% to 100%", function () { const result = getTraffic( // parsed variations from YAML [ { value: "control", weight: 0, }, { value: "treatment", weight: 100, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 100, }, ], // existing feature from previous release { variations: [ { value: "control", weight: 0, }, { value: "treatment", weight: 80, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "treatment", range: [0, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 100000, allocation: [ // should be filtered out automatically // { // variation: "control", // range: [0, 0], // }, { variation: "treatment", range: [0, 100000], }, ], }, ]); }); it("should allocate traffic for 0-100 weight on two variations, with rule percentage going from 100% to 80%", function () { const result = getTraffic( // parsed variations from YAML [ { value: "control", weight: 0, }, { value: "treatment", weight: 100, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release { variations: [ { value: "control", weight: 0, }, { value: "treatment", weight: 80, }, ], traffic: [ { key: "1", percentage: 100000, allocation: [ { variation: "treatment", range: [0, 100000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ // should be filtered out automatically // { // variation: "control", // range: [0, 0], // }, { variation: "treatment", range: [0, 80000], }, ], }, ]); }); it("should allocate traffic for existing variations state of 0-100 weights", function () { const result = getTraffic( // parsed variations from YAML [ { value: "control", weight: 50, }, { value: "treatment", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release { variations: [ { value: "control", weight: 0, }, { value: "treatment", weight: 80, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "treatment", range: [0, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ { variation: "control", range: [0, 40000], }, { variation: "treatment", range: [40000, 80000], }, ], }, ]); }); it("should allocate traffic for 50-50 weight on two variations", function () { const result = getTraffic( // parsed variations from YAML [ { value: "on", weight: 50, }, { value: "off", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release undefined, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ { variation: "on", range: [0, 40000], }, { variation: "off", range: [40000, 80000], }, ], }, ]); }); it("should allocate traffic for weight with two decimal places among three variations", function () { const result = getTraffic( // parsed variations from YAML [ { value: "yes", weight: 33.33, }, { value: "no", weight: 33.33, }, { value: "maybe", weight: 33.34, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 100, }, ], // existing feature from previous release undefined, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 100000, allocation: [ { variation: "yes", range: [0, 33330], }, { variation: "no", range: [33330, 66660], }, { variation: "maybe", range: [66660, 100000], }, ], }, ]); }); it("should allocate against previous known allocation, increasing from 80% to 90%, with same variations and weight", function () { const result = getTraffic( // parsed variations from YAML [ { value: "on", weight: 50, }, { value: "off", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 90, }, ], // existing feature from previous release { variations: [ { value: "on", weight: 50, }, { value: "off", weight: 50, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "on", range: [0, 40000], }, { variation: "off", range: [40000, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 90000, allocation: [ // existing { variation: "on", range: [0, 40000], }, { variation: "off", range: [40000, 80000], }, // new { variation: "on", range: [80000, 85000], }, { variation: "off", range: [85000, 90000], }, ], }, ]); }); it("should allocate against previous known allocation, decreasing from 80% to 70%, with same variations and weight", function () { const result = getTraffic( // parsed variations from YAML [ { value: "on", weight: 50, }, { value: "off", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 70, }, ], // existing feature from previous release { variations: [ { value: "on", weight: 50, }, { value: "off", weight: 50, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "on", range: [0, 40000], }, { variation: "off", range: [40000, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 70000, allocation: [ { variation: "on", range: [0, 35000], }, { variation: "off", range: [35000, 70000], }, ], }, ]); }); it("should allocate against previous known allocation, increasing from 80% to 90%, with new added variation", function () { const result = getTraffic( // parsed variations from YAML [ { value: "a", weight: 33.33, }, { value: "b", weight: 33.33, }, { value: "c", weight: 33.34, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 90, }, ], // existing feature from previous release { variations: [ { value: "a", weight: 50, }, { value: "b", weight: 50, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "a", range: [0, 40000], }, { variation: "b", range: [40000, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 90000, allocation: [ { variation: "a", range: [0, 29997], }, { variation: "b", range: [29997, 59994], }, { variation: "c", range: [59994, 90000], }, ], }, ]); }); it("should allocate against previous known allocation, increasing from 80% to 100%, with new added variation, totalling 4 variations", function () { const result = getTraffic( // parsed variations from YAML [ { value: "a", weight: 25, }, { value: "b", weight: 25, }, { value: "c", weight: 25, }, { value: "d", weight: 25, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 100, }, ], // existing feature from previous release { variations: [ { value: "a", weight: 50, }, { value: "b", weight: 50, }, ], traffic: [ { key: "1", percentage: 80000, allocation: [ { variation: "a", range: [0, 40000], }, { variation: "b", range: [40000, 80000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 100000, allocation: [ { variation: "a", range: [0, 25000], }, { variation: "b", range: [25000, 50000], }, { variation: "c", range: [50000, 75000], }, { variation: "d", range: [75000, 100000], }, ], }, ]); }); it("should allocate against previous known allocation, staying at same 100%, removing variations from 4 to 2", function () { const result = getTraffic( // parsed variations from YAML [ { value: "a", weight: 50, }, { value: "b", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 100, }, ], // existing feature from previous release { variations: [ { value: "a", weight: 25, }, { value: "b", weight: 25, }, { value: "c", weight: 25, }, { value: "d", weight: 25, }, ], traffic: [ { key: "1", percentage: 100000, allocation: [ { variation: "a", range: [0, 25000], }, { variation: "b", range: [25000, 50000], }, { variation: "c", range: [50000, 75000], }, { variation: "d", range: [75000, 100000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 100000, allocation: [ { variation: "a", range: [0, 50000], }, { variation: "b", range: [50000, 100000], }, ], }, ]); }); it("should allocate against previous known allocation, decreasing from 100% to 80%, removing variations from 4 to 2", function () { const result = getTraffic( // parsed variations from YAML [ { value: "a", weight: 50, }, { value: "b", weight: 50, }, ], // parsed rollouts from YAML [ { key: "1", segments: "*", percentage: 80, }, ], // existing feature from previous release { variations: [ { value: "a", weight: 25, }, { value: "b", weight: 25, }, { value: "c", weight: 25, }, { value: "d", weight: 25, }, ], traffic: [ { key: "1", percentage: 100000, allocation: [ { variation: "a", range: [0, 25000], }, { variation: "b", range: [25000, 50000], }, { variation: "c", range: [50000, 75000], }, { variation: "d", range: [75000, 100000], }, ], }, ], }, ); expect(result).toEqual([ { key: "1", segments: "*", percentage: 80000, allocation: [ { variation: "a", range: [0, 40000], }, { variation: "b", range: [40000, 80000], }, ], }, ]); }); });