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import { assertStrictEquals as equals } from "../../deps/assert.ts";import Site from "../../core/site.ts";
import type { Data, Engine } from "../../core.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.engine(      [".foo"],      new class implements Engine {        render(content: string, data: Data): Promise<string> {          return Promise.resolve(this.renderSync(content, data));        }        renderSync(content: string, data: Data): 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.engine(      [".upper"],      new class implements Engine {        render(content: string): Promise<string> {          return Promise.resolve(this.renderSync(content));        }        renderSync(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);  });});