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import { assertStrictEquals as equals } from "../../deps/assert.ts";import Site from "../../core/site.ts";
import type { Engine } from "../../core/renderer.ts";
Deno.test("Engines", async (t) => {  const site = new Site();
  const { formats, renderer } = site;
  equals(formats.size, 0);
  await t.step("Add a template engine", () => {    site.loadPages(      [".foo"],      {        engine: new class implements Engine {          includes = "";          render(            content: string,            data: Record<string, unknown>,          ): Promise<string> {            return Promise.resolve(this.renderComponent(content, data));          }          renderComponent(            content: string,            data: Record<string, unknown>,          ): string {            return content + data.foo;          }          addHelper() {}          deleteCache() {}        }(),      },    );
    equals(formats.size, 1);  });
  await t.step("Run the template engine", async () => {    const result = await renderer.render("content", { foo: "bar" }, "foo.foo");    equals(result, "contentbar");
    const result2 = await renderer.render(      "content",      { foo: "bar" },      "foo.not_found",    );    equals(result2, "content");  });
  await t.step("Add other template engine", () => {    site.loadPages(      [".upper"],      {        engine: new class implements Engine {          includes = "";          render(content: string): Promise<string> {            return Promise.resolve(this.renderComponent(content));          }          renderComponent(content: string): string {            return content.toUpperCase();          }          addHelper() {}          deleteCache() {}        }(),      },    );
    equals(formats.size, 2);  });
  await t.step("Run the other template engine", async () => {    const result = await renderer.render(      "content",      { foo: "bar" },      "foo.upper",    );    equals(result, "CONTENT");
    const result2 = await renderer.render(      "content",      { foo: "bar" },      "foo.not_found",    );    equals(result2, "content");  });
  await t.step("templateEngine variable", async () => {    const result = await renderer.render("content", {      foo: "bar",      templateEngine: "foo",    }, "foo.upper");    equals(result, "contentbar");
    const result2 = await renderer.render("content", {      foo: "bar",      templateEngine: ["foo", "upper"],    }, "foo.not_found");    equals(result2, "CONTENTBAR");
    const result3 = await renderer.render("content", {      foo: "bar",      templateEngine: "upper,foo",    }, "foo.not_found");    equals(result3, "CONTENTbar");  });
  await t.step("Add a helper", () => {    renderer.addHelper("quoted", (val: string) => `"${val}"`, {      type: "filter",    });    equals(renderer.helpers.has("quoted"), true);  });});