@player-ui/player/src/binding/__tests__/binding.test.ts

import { describe, it, expect } from "vitest";
import { BindingInstance } from "..";

describe("contains", () => {
  it("works for simple neg case", () => {
    const foo = new BindingInstance("foo");
    const bar = new BindingInstance("bar");
    expect(foo.contains(bar)).toBe(false);
  });

  it("works for simple pos cases", () => {
    const foo = new BindingInstance("foo");
    const fooBar = new BindingInstance("foo.bar");
    expect(foo.contains(fooBar)).toBe(true);
    expect(fooBar.contains(foo)).toBe(false);
  });

  it("can handle bindings starting with numbers", () => {
    const instance = new BindingInstance(
      "foo.5f4704fd-adab-49df-bcbc-5aedb04194f9.baz",
    );
    expect(instance.asString()).toBe(
      "foo.5f4704fd-adab-49df-bcbc-5aedb04194f9.baz",
    );
    expect(instance.asArray()[1]).toBe("5f4704fd-adab-49df-bcbc-5aedb04194f9");
    expect(instance.key()).toBe("baz");
  });

  it("handles overlapping key-string matches", () => {
    const foo = new BindingInstance("foo");
    const fooBar = new BindingInstance("fo");
    expect(foo.contains(fooBar)).toBe(false);

    expect(
      new BindingInstance("foo.bar.baz").contains(
        new BindingInstance("foo.bar.bazzzz"),
      ),
    ).toBe(false);
  });
});

describe("relative", () => {
  it("works for simple case", () => {
    const foo = new BindingInstance("foo");
    const fooBar = new BindingInstance("foo.bar");
    expect(fooBar.relative(foo)).toStrictEqual(["bar"]);
  });
});

describe("parent", () => {
  it("works for easy ones", () => {
    const fooBar = new BindingInstance("foo.bar");
    expect(fooBar.parent().asString()).toBe("foo");
  });
});

describe("key", () => {
  it("works for easy ones", () => {
    const fooBar = new BindingInstance("foo.bar");
    expect(fooBar.key()).toBe("bar");
  });
});

describe("numberic segments", () => {
  it("splits numberic keys", () => {
    expect(new BindingInstance("foo.1.bar").asArray()).toStrictEqual([
      "foo",
      1,
      "bar",
    ]);
    expect(new BindingInstance(["foo", 1, "bar"]).asArray()).toStrictEqual([
      "foo",
      1,
      "bar",
    ]);
  });
});

describe("descendent binding", () => {
  it("generate child path from string", () => {
    const binding = new BindingInstance("foo.1.bar");
    expect(binding.descendent("barChild.UUID").asArray()).toStrictEqual([
      "foo",
      1,
      "bar",
      "barChild",
      "UUID",
    ]);
  });

  it("generate child path from binding segments", () => {
    const binding = new BindingInstance("foo.1.bar");
    expect(binding.descendent(["barChild", "UUID"]).asArray()).toStrictEqual([
      "foo",
      1,
      "bar",
      "barChild",
      "UUID",
    ]);
  });

  it("generate child path from a binding", () => {
    const binding = new BindingInstance("foo.1.bar");
    const childBinding = new BindingInstance("barChild.UUID");
    expect(binding.descendent(childBinding).asArray()).toStrictEqual([
      "foo",
      1,
      "bar",
      "barChild",
      "UUID",
    ]);
  });
});