83 lines
2.2 KiB
JavaScript
83 lines
2.2 KiB
JavaScript
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import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'test_lib/test_lib';
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import {coalesce} from 'change_detection/coalesce';
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import {RECORD_TYPE_SELF, ProtoRecord} from 'change_detection/proto_change_detector';
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export function main() {
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function r(funcOrValue, args, contextIndex, selfIndex, lastInBinding = false) {
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return new ProtoRecord(99, "name", funcOrValue, args, null, contextIndex, selfIndex,
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null, null, null, lastInBinding, false);
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}
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describe("change detection - coalesce", () => {
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it("should work with an empty list", () => {
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expect(coalesce([])).toEqual([]);
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});
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it("should remove non-terminal duplicate records" +
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" and update the context indices referencing them", () => {
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var rs = coalesce([
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r("user", [], 0, 1),
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r("first", [], 1, 2),
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r("user", [], 0, 3),
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r("last", [], 3, 4)
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]);
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expect(rs).toEqual([
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r("user", [], 0, 1),
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r("first", [], 1, 2),
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r("last", [], 1, 3)
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]);
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});
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it("should update indices of other records", () => {
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var rs = coalesce([
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r("dup", [], 0, 1),
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r("dup", [], 0, 2),
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r("user", [], 0, 3),
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r("first", [3], 3, 4)
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]);
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expect(rs).toEqual([
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r("dup", [], 0, 1),
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r("user", [], 0, 2),
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r("first", [2], 2, 3)
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]);
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});
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it("should remove non-terminal duplicate records" +
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" and update the args indices referencing them", () => {
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var rs = coalesce([
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r("user1", [], 0, 1),
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r("user2", [], 0, 2),
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r("hi", [1], 0, 3),
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r("hi", [1], 0, 4),
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r("hi", [2], 0, 5)
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]);
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expect(rs).toEqual([
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r("user1", [], 0, 1),
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r("user2", [], 0, 2),
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r("hi", [1], 0, 3),
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r("hi", [2], 0, 4)
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]);
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});
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it("should replace duplicate terminal records with" +
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" self records", () => {
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var rs = coalesce([
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r("user", [], 0, 1, true),
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r("user", [], 0, 2, true)
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]);
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expect(rs[1]).toEqual(new ProtoRecord(
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RECORD_TYPE_SELF, "self", null,
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[], null, 1, 2,
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null, null, null,
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true, false)
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);
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});
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});
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}
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