@aire-ux/aire-condensation/src/test/typescript/root-element.spec.ts

Client-side serialization library for Aire-UX

import "reflect-metadata";
import { Condensation } from "@condensation/condensation";
import {
  Configuration,
  Property,
  RootElement,
} from "@condensation/root-element";
import { PropertyDefinition } from "@condensation/type-registry";

test("root element should be able to register a type with the type registry", () => {
  @RootElement
  class TestElement {}

  expect(Condensation.typeRegistry.contains(TestElement)).toBeTruthy();
  expect(
    Condensation.typeRegistry.resolveConfiguration(TestElement).alias
  ).toBe("TestElement");
});

test("root element should be registerable with an alias", () => {
  @RootElement
  @Configuration({ alias: "root-element" })
  class TestElement {}

  const cfg = Condensation.typeRegistry.resolveConfiguration(TestElement);
  expect(cfg.alias).toBe("root-element");
});

test("properties should be available on a type", () => {
  @RootElement
  class TestElement {
    @Property()
    name: string | undefined;
  }

  const cfg = Condensation.typeRegistry.resolveConfiguration(TestElement);
  expect(cfg?.properties?.size).toBe(1);
  const prop: PropertyDefinition = cfg.properties?.get(
    "name"
  ) as PropertyDefinition;
  expect(prop?.realName).toBe("name");
  expect(prop?.readAlias).toBe("name");
  expect(prop?.writeAlias).toBe("name");
});

test("deserializer should be able to read element from json document with no aliases", () => {
  @RootElement
  class TestElement {
    @Property(String)
    name: string | undefined;

    sayHello(): string {
      return `Hello, ${this.name}`;
    }
  }

  const element = Condensation.deserializerFor(TestElement).read({
    name: "josiah",
  });
  expect(element.name).toBe("josiah");
  expect(element.sayHello()).toBe("Hello, josiah");
});

test("deserializer should be able to read element from json document constructor arguments", () => {
  @RootElement
  class Person {
    @Property(String)
    name: string | undefined;

    sayHello(): string {
      return `Hello, ${this.name}`;
    }
  }

  @RootElement
  class TestElement {
    @Property(Person)
    person: Person | undefined;
  }

  const element = Condensation.deserializerFor(TestElement).read({
    person: {
      name: "josiah",
    },
  });

  expect(element.person).toBeDefined();
  expect(element?.person?.name).toBe("josiah");
  expect(element?.person?.sayHello()).toBe("Hello, josiah");
});