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import { assertEquals, assertExists } from "@std/assert";
import {
getUniqueFilename,
getMimeType,
isViewableInBrowser,
formatFileSize,
isAllowedFileType,
} from "../fileUtils.ts";
Deno.test("getMimeType - returns correct MIME type for images", () => {
assertEquals(getMimeType("photo.jpg"), "image/jpeg");
assertEquals(getMimeType("image.png"), "image/png");
assertEquals(getMimeType("graphic.gif"), "image/gif");
assertEquals(getMimeType("pic.webp"), "image/webp");
});
Deno.test("getMimeType - returns correct MIME type for videos", () => {
assertEquals(getMimeType("video.mp4"), "video/mp4");
assertEquals(getMimeType("clip.webm"), "video/webm");
assertEquals(getMimeType("movie.avi"), "video/x-msvideo");
});
Deno.test("getMimeType - returns correct MIME type for documents", () => {
assertEquals(getMimeType("document.pdf"), "application/pdf");
assertEquals(getMimeType("readme.txt"), "text/plain");
assertEquals(getMimeType("archive.zip"), "application/zip");
});
Deno.test("getMimeType - handles uppercase extensions", () => {
assertEquals(getMimeType("PHOTO.JPG"), "image/jpeg");
assertEquals(getMimeType("Video.MP4"), "video/mp4");
});
Deno.test("getMimeType - returns octet-stream for unknown types", () => {
assertEquals(getMimeType("file.xyz"), "application/octet-stream");
assertEquals(getMimeType("noextension"), "application/octet-stream");
});
Deno.test("isViewableInBrowser - images are viewable", () => {
assertEquals(isViewableInBrowser("image/jpeg"), true);
assertEquals(isViewableInBrowser("image/png"), true);
assertEquals(isViewableInBrowser("image/gif"), true);
});
Deno.test("isViewableInBrowser - videos are viewable", () => {
assertEquals(isViewableInBrowser("video/mp4"), true);
assertEquals(isViewableInBrowser("video/webm"), true);
});
Deno.test("isViewableInBrowser - PDFs and text are viewable", () => {
assertEquals(isViewableInBrowser("application/pdf"), true);
assertEquals(isViewableInBrowser("text/plain"), true);
});
Deno.test("isViewableInBrowser - archives are not viewable", () => {
assertEquals(isViewableInBrowser("application/zip"), false);
assertEquals(isViewableInBrowser("application/octet-stream"), false);
});
Deno.test("formatFileSize - formats bytes correctly", () => {
assertEquals(formatFileSize(0), "0 Bytes");
assertEquals(formatFileSize(500), "500 Bytes");
assertEquals(formatFileSize(1024), "1 KB");
assertEquals(formatFileSize(1536), "1.5 KB");
assertEquals(formatFileSize(1048576), "1 MB");
assertEquals(formatFileSize(1073741824), "1 GB");
});
Deno.test("isAllowedFileType - allows configured types", () => {
assertEquals(isAllowedFileType("image/jpeg"), true);
assertEquals(isAllowedFileType("application/pdf"), true);
});
Deno.test("getUniqueFilename - returns same name if file doesn't exist", async () => {
const testDir = await Deno.makeTempDir();
try {
// Save original config
const { config } = await import("../config.ts");
const originalUploadDir = config.uploadDir;
config.uploadDir = testDir;
const filename = await getUniqueFilename("test.txt");
assertEquals(filename, "test.txt");
// Restore
config.uploadDir = originalUploadDir;
} finally {
await Deno.remove(testDir, { recursive: true });
}
});
Deno.test("getUniqueFilename - appends epoch if file exists", async () => {
const testDir = await Deno.makeTempDir();
try {
// Create a test file
await Deno.writeTextFile(`${testDir}/existing.txt`, "test");
const { config } = await import("../config.ts");
const originalUploadDir = config.uploadDir;
config.uploadDir = testDir;
const filename = await getUniqueFilename("existing.txt");
assertEquals(filename.startsWith("existing_"), true);
assertEquals(filename.endsWith(".txt"), true);
config.uploadDir = originalUploadDir;
} finally {
await Deno.remove(testDir, { recursive: true });
}
});
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