feat(std/node): support hex/base64 encoding in fs.readFile/fs.writeFile (#6512)

1 files changed, 39 insertions, 1 deletions

diff --git a/std/node/_fs/_fs_readFile_test.ts b/std/node/_fs/_fs_readFile_test.ts
index 02e4c3745..076c4b276 100644
--- a/std/node/_fs/_fs_readFile_test.ts
+++ b/std/node/_fs/_fs_readFile_test.ts
@@ -29,11 +29,37 @@ Deno.test("readFileEncodeUtf8Success", async function () {
       res(data);
     });
   });
-
   assertEquals(typeof data, "string");
   assertEquals(data as string, "hello world");
 });
 
+Deno.test("readFileEncodeHexSuccess", async function () {
+  const data = await new Promise((res, rej) => {
+    readFile(testData, { encoding: "hex" }, (err, data) => {
+      if (err) {
+        rej(err);
+      }
+      res(data);
+    });
+  });
+
+  assertEquals(typeof data, "string");
+  assertEquals(data as string, "68656c6c6f20776f726c64");
+});
+
+Deno.test("readFileEncodeBase64Success", async function () {
+  const data = await new Promise((res, rej) => {
+    readFile(testData, { encoding: "base64" }, (err, data) => {
+      if (err) {
+        rej(err);
+      }
+      res(data);
+    });
+  });
+  assertEquals(typeof data, "string");
+  assertEquals(data as string, "aGVsbG8gd29ybGQ=");
+});
+
 Deno.test("readFileEncodingAsString", async function () {
   const data = await new Promise((res, rej) => {
     readFile(testData, "utf8", (err, data) => {
@@ -60,6 +86,18 @@ Deno.test("readFileEncodeUtf8Success", function () {
   assertEquals(data as string, "hello world");
 });
 
+Deno.test("readFileEncodeHexSuccess", function () {
+  const data = readFileSync(testData, { encoding: "hex" });
+  assertEquals(typeof data, "string");
+  assertEquals(data as string, "68656c6c6f20776f726c64");
+});
+
+Deno.test("readFileEncodeBase64Success", function () {
+  const data = readFileSync(testData, { encoding: "base64" });
+  assertEquals(typeof data, "string");
+  assertEquals(data as string, "aGVsbG8gd29ybGQ=");
+});
+
 Deno.test("readFileEncodeAsString", function () {
   const data = readFileSync(testData, "utf8");
   assertEquals(typeof data, "string");