test: FileHandle.readFile

yarnpkg · Apr 23, 2022 · c1ef64d · c1ef64d
1 parent af95f5b
commit c1ef64d
Showing 1 changed file with 33 additions and 0 deletions.
diff --git a/packages/yarnpkg-fslib/tests/patchedFs.test.ts b/packages/yarnpkg-fslib/tests/patchedFs.test.ts
@@ -284,6 +284,39 @@ describe(`patchedFs`, () => {
     });
   });
 
+  it(`should support FileHandle.readFile`, async () => {
+    const patchedFs = extendFs(fs, new PosixFS(new NodeFS()));
+
+    await xfs.mktempPromise(async dir => {
+      const filepath = npath.join(npath.fromPortablePath(dir), `foo.txt`);
+      await patchedFs.promises.writeFile(filepath, `foo`);
+
+      {
+        const fd = await patchedFs.promises.open(filepath, `r`);
+        await expect(fd.readFile()).resolves.toEqual(Buffer.from(`foo`));
+        await fd.close();
+      }
+
+      {
+        const fd = await patchedFs.promises.open(filepath, `r`);
+        await expect(fd.readFile({})).resolves.toEqual(Buffer.from(`foo`));
+        await fd.close();
+      }
+
+      {
+        const fd = await patchedFs.promises.open(filepath, `r`);
+        await expect(fd.readFile(`utf8`)).resolves.toEqual(`foo`);
+        await fd.close();
+      }
+
+      {
+        const fd = await patchedFs.promises.open(filepath, `r`);
+        await expect(fd.readFile({encoding: `utf8`})).resolves.toEqual(`foo`);
+        await fd.close();
+      }
+    });
+  });
+
   it(`should support FileHandle.write`, async () => {
     const patchedFs = extendFs(fs, new PosixFS(new NodeFS()));