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optimize-img.test.js
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optimize-img.test.js
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const R = require("ramda");
import { describe, expect, it, beforeAll } from "bun:test"
const {
filterUnwantedExtensions,
computePathAndName,
sourceDir,
destDir,
appendOptimizedPath,
stripFileNames,
filesToProcess,
} = require("./optimize-img");
beforeAll(async () => { });
describe("filterUnwantedExtensions()", () => {
it("should remove .DS_Store, .svg and .gif files from list of files", () => {
const files = [
"public/img/.DS_Store",
"public/img/boy.svg",
"public/img/anim.gif",
"public/img/ok.png",
];
const filtered = R.transduce(
filterUnwantedExtensions,
R.flip(R.append),
[],
files,
);
expect(filtered).toHaveLength(1);
expect(filtered[0]).toEqual("public/img/ok.png");
});
});
describe("computePathAndname()", () => {
it("spilts a file into its path and name", () => {
const files = [
"public/img/content/posts/a.jpg",
"public/img/content/authors/b.jpg",
];
const computedFiles = R.transduce(
computePathAndName,
R.flip(R.append),
[],
files,
);
expect(computedFiles).toHaveLength(2);
expect(computedFiles[0]).toHaveProperty(
"filePath",
"public/img/content/posts",
);
expect(computedFiles[0]).toHaveProperty("name", "a.jpg");
expect(computedFiles[1]).toHaveProperty(
"filePath",
"public/img/content/authors",
);
expect(computedFiles[1]).toHaveProperty("name", "b.jpg");
});
});
describe("appendOptimizedPath()", () => {
it("spilts a file into its path and name", () => {
const pathAndNames = [
{ filePath: "public/img/content/posts", name: "a.jpg" },
];
const computedFiles = R.transduce(
appendOptimizedPath,
R.flip(R.append),
[],
pathAndNames,
);
expect(computedFiles).toHaveLength(1);
expect(computedFiles[0]).toHaveProperty(
"filePath",
"public/img/content/posts",
);
expect(computedFiles[0]).toHaveProperty(
"optimizedPath",
"public/optimized-img/content/posts/a.jpg",
);
expect(computedFiles[0]).toHaveProperty("name", "a.jpg");
});
});
describe("stripFileNames()", () => {
it("removes file names and retursn a list of unique dirs", () => {
const optimizedFiles = [
"public/optimized-img/contents/a.jpg/w-20.webp",
"public/optimized-img/contents/a.jpg/w-40.webp",
"public/optimized-img/contents/a.jpg/w-80.webp",
"public/optimized-img/contents/b.jpg/w-20.webp",
"public/optimized-img/contents/b.jpg/w-40.webp",
"public/optimized-img/contents/b.jpg/w-80.webp",
];
const stripped = stripFileNames(optimizedFiles);
expect(stripped).toHaveLength(2);
expect(stripped[0]).toEqual("public/optimized-img/contents/a.jpg");
expect(stripped[1]).toEqual("public/optimized-img/contents/b.jpg");
});
});
describe("filesToProcess()", () => {
it("should check all files against optimized files and return un-optimized files", () => {
const allFiles = [
"public/img/contents/authors/a1.jpg",
"public/img/contents/posts/p1.jpg",
"public/img/contents/a.jpg", // processed
"public/img/contents/b.jpg", // processed
];
const optimizedFiles = [
"public/optimized-img/contents/a.jpg/w-20.webp",
"public/optimized-img/contents/a.jpg/w-40.webp",
"public/optimized-img/contents/a.jpg/w-80.webp",
"public/optimized-img/contents/b.jpg/w-20.webp",
"public/optimized-img/contents/b.jpg/w-40.webp",
"public/optimized-img/contents/b.jpg/w-80.webp",
];
const toProcess = filesToProcess(allFiles, optimizedFiles);
expect(toProcess).toHaveLength(2);
expect(toProcess[0]).toHaveProperty(
"filePath",
"public/img/contents/authors",
);
expect(toProcess[0]).toHaveProperty("name", "a1.jpg");
expect(toProcess[0]).toHaveProperty(
"optimizedPath",
"public/optimized-img/contents/authors/a1.jpg",
);
expect(toProcess[1]).toHaveProperty(
"filePath",
"public/img/contents/posts",
);
expect(toProcess[1]).toHaveProperty("name", "p1.jpg");
expect(toProcess[1]).toHaveProperty(
"optimizedPath",
"public/optimized-img/contents/posts/p1.jpg",
);
});
});