Files
clean-architecture-frontend…/tests/unit/boundary-mapper.test.js

53 lines
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JavaScript

import { describe, expect, it } from "vitest";
import {
mapOperationPayload,
mapResourceDto,
} from "../../src/adapters/http/resource-mapper.js";
import { toResourceViewModel } from "../../src/application/view-models/resource-view-model.js";
describe("DTO to model to view-model mapping", () => {
it("contains raw DTO names at the HTTP boundary", () => {
const model = mapResourceDto({
id: "resource-1",
name: "Example",
createdAt: "2026-07-25T00:00:00.000Z",
backendOnly: "not propagated",
});
expect(model).toEqual({
id: "resource-1",
displayName: "Example",
createdAt: "2026-07-25T00:00:00.000Z",
});
expect(model).not.toHaveProperty("name");
expect(model).not.toHaveProperty("backendOnly");
});
it("maps operation payloads and rejects missing mappers", () => {
expect(
mapOperationPayload("LIST_SAMPLE_RESOURCES", [
{ id: "resource-1", name: "Example" },
]),
).toEqual([
{ id: "resource-1", displayName: "Example", createdAt: null },
]);
expect(() => mapOperationPayload("UNKNOWN", {})).toThrow(
"No boundary mapper registered",
);
});
it("projects an application-owned render-ready shape", () => {
const model = mapResourceDto({
id: "resource-1",
name: "Example",
createdAt: null,
});
expect(toResourceViewModel(model)).toEqual({
resourceId: "resource-1",
title: "Example",
createdAtLabel: null,
});
});
});