diff --git a/src/data/data.spec.ts b/src/data/data.spec.ts
index 7aa6bd4..5e29fd2 100644
--- a/src/data/data.spec.ts
+++ b/src/data/data.spec.ts
@@ -38,6 +38,45 @@ describe("data", () => {
     assert.ok(treeCid);
   });
 
+  it("saves the metadata uploads provided during the upload", async () => {
+    const content = crypto.randomBytes(16).toString("hex");
+
+    const strategy = new NodeUploadStategy(content, {
+      filename: "hello.txt",
+      mimetype: "text/plain",
+    });
+    const res = data.upload(strategy);
+    const cid = await res.result;
+
+    assert.ok(cid.error == false);
+    assert.ok(cid.data);
+
+    const manifest = await data.fetchManifest(cid.data);
+    assert.ok(manifest.error == false);
+    assert.strictEqual(manifest.data.cid, cid.data);
+
+    const { filename, mimetype } = manifest.data.manifest;
+    assert.strictEqual(filename, "hello.txt");
+    assert.ok(mimetype, "text/plain");
+  });
+
+  it("fails when providing wrong metadata", async () => {
+    const content = crypto.randomBytes(16).toString("hex");
+
+    const strategy = new NodeUploadStategy(content, {
+      filename: "hello.txt",
+      mimetype: "plain/text",
+    });
+    const res = data.upload(strategy);
+    const cid = await res.result;
+
+    assert.ok(cid.error == true);
+    assert.ok(
+      cid.data.message.includes(" The MIME type 'plain/text' is not valid")
+    );
+    assert.equal(cid.data.code, 422);
+  });
+
   it("delete a file a locally", async () => {
     const content = "b".repeat(131072);
     const strategy = new NodeUploadStategy(content);
@@ -58,6 +97,24 @@ describe("data", () => {
     assert.notOk(cids.data.content.find((c) => c.cid == cid.data));
   });
 
+  it("doesn't do anything when trying to delete a non existing cid", async () => {
+    const content = crypto.randomBytes(16).toString("hex");
+    const strategy = new NodeUploadStategy(content);
+    const res = spData.upload(strategy);
+    const cid = await res.result;
+    assert.ok(cid.error == false);
+    assert.ok(cid.data);
+
+    const del = await data.delete(cid.data);
+    assert.ok(del.error == false);
+  });
+
+  it("returns an error when providing an invalid cid", async () => {
+    const del = await data.delete("hello");
+    assert.ok(del.error);
+    assert.ok(del.data.message.includes("Incorrect Cid"));
+  });
+
   it("updates the space available when storing data", async () => {
     const content = crypto.randomBytes(16).toString("hex");