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utils.spec.ts
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utils.spec.ts
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import { expect } from "chai";
import * as fs from "fs";
import * as fsExtra from "fs-extra";
import * as sinon from "sinon";
import {
pathHasRegex,
cleanEscapedChars,
isRewriteSupportedByFirebase,
isRedirectSupportedByFirebase,
isHeaderSupportedByFirebase,
getNextjsRewritesToUse,
usesAppDirRouter,
usesNextImage,
hasUnoptimizedImage,
} from "../../../frameworks/next/utils";
import {
pathsAsGlobs,
pathsWithEscapedChars,
pathsWithRegex,
pathsWithRegexAndEscapedChars,
supportedHeaders,
supportedRedirects,
supportedRewritesArray,
supportedRewritesObject,
unsupportedHeaders,
unsupportedRedirects,
unsupportedRewritesArray,
} from "./helpers";
describe("Next.js utils", () => {
describe("pathHasRegex", () => {
it("should identify regex", () => {
for (const path of pathsWithRegex) {
expect(pathHasRegex(path)).to.be.true;
}
});
it("should not identify escaped parentheses as regex", () => {
for (const path of pathsWithEscapedChars) {
expect(pathHasRegex(path)).to.be.false;
}
});
it("should identify regex along with escaped chars", () => {
for (const path of pathsWithRegexAndEscapedChars) {
expect(pathHasRegex(path)).to.be.true;
}
});
it("should not identify globs as regex", () => {
for (const path of pathsAsGlobs) {
expect(pathHasRegex(path)).to.be.false;
}
});
});
describe("cleanEscapedChars", () => {
it("should clean escaped chars", () => {
// path containing all escaped chars
const testPath = "/\\(\\)\\{\\}\\:\\+\\?\\*/:slug";
expect(testPath.includes("\\(")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\(")).to.be.false;
expect(testPath.includes("\\)")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\)")).to.be.false;
expect(testPath.includes("\\{")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\{")).to.be.false;
expect(testPath.includes("\\}")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\}")).to.be.false;
expect(testPath.includes("\\:")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\:")).to.be.false;
expect(testPath.includes("\\+")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\+")).to.be.false;
expect(testPath.includes("\\?")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\?")).to.be.false;
expect(testPath.includes("\\*")).to.be.true;
expect(cleanEscapedChars(testPath).includes("\\*")).to.be.false;
});
});
describe("isRewriteSupportedByFirebase", () => {
it("should allow supported rewrites", () => {
for (const rewrite of supportedRewritesArray) {
expect(isRewriteSupportedByFirebase(rewrite)).to.be.true;
}
});
it("should disallow unsupported rewrites", () => {
for (const rewrite of unsupportedRewritesArray) {
expect(isRewriteSupportedByFirebase(rewrite)).to.be.false;
}
});
});
describe("isRedirectSupportedByFirebase", () => {
it("should allow supported redirects", () => {
for (const redirect of supportedRedirects) {
expect(isRedirectSupportedByFirebase(redirect)).to.be.true;
}
});
it("should disallow unsupported redirects", () => {
for (const redirect of unsupportedRedirects) {
expect(isRedirectSupportedByFirebase(redirect)).to.be.false;
}
});
});
describe("isHeaderSupportedByFirebase", () => {
it("should allow supported headers", () => {
for (const header of supportedHeaders) {
expect(isHeaderSupportedByFirebase(header)).to.be.true;
}
});
it("should disallow unsupported headers", () => {
for (const header of unsupportedHeaders) {
expect(isHeaderSupportedByFirebase(header)).to.be.false;
}
});
});
describe("getNextjsRewritesToUse", () => {
it("should use only beforeFiles", () => {
if (!supportedRewritesObject?.beforeFiles?.length) {
throw new Error("beforeFiles must have rewrites");
}
const rewritesToUse = getNextjsRewritesToUse(supportedRewritesObject);
for (const [i, rewrite] of supportedRewritesObject.beforeFiles.entries()) {
expect(rewrite.source).to.equal(rewritesToUse[i].source);
expect(rewrite.destination).to.equal(rewritesToUse[i].destination);
}
});
it("should return all rewrites if in array format", () => {
const rewritesToUse = getNextjsRewritesToUse(supportedRewritesArray);
expect(rewritesToUse).to.have.length(supportedRewritesArray.length);
});
});
describe("usesAppDirRouter", () => {
let sandbox: sinon.SinonSandbox;
beforeEach(() => {
sandbox = sinon.createSandbox();
});
afterEach(() => {
sandbox.restore();
});
it("should return false when app dir doesn't exist", () => {
sandbox.stub(fs, "existsSync").returns(false);
expect(usesAppDirRouter("")).to.be.false;
});
it("should return true when app dir does exist", () => {
sandbox.stub(fs, "existsSync").returns(true);
expect(usesAppDirRouter("")).to.be.true;
});
});
describe("usesNextImage", () => {
let sandbox: sinon.SinonSandbox;
beforeEach(() => {
sandbox = sinon.createSandbox();
});
afterEach(() => {
sandbox.restore();
});
it("should return true when export marker has isNextImageImported", async () => {
sandbox.stub(fsExtra, "readJSON").resolves({
isNextImageImported: true,
});
expect(await usesNextImage("", "")).to.be.true;
});
it("should return false when export marker has !isNextImageImported", async () => {
sandbox.stub(fsExtra, "readJSON").resolves({
isNextImageImported: false,
});
expect(await usesNextImage("", "")).to.be.false;
});
});
describe("hasUnoptimizedImage", () => {
let sandbox: sinon.SinonSandbox;
beforeEach(() => {
sandbox = sinon.createSandbox();
});
afterEach(() => {
sandbox.restore();
});
it("should return true when images manfiest indicates unoptimized", async () => {
sandbox.stub(fsExtra, "readJSON").resolves({
images: { unoptimized: true },
});
expect(await hasUnoptimizedImage("", "")).to.be.true;
});
it("should return true when images manfiest indicates !unoptimized", async () => {
sandbox.stub(fsExtra, "readJSON").resolves({
images: { unoptimized: false },
});
expect(await hasUnoptimizedImage("", "")).to.be.false;
});
});
});