diff --git a/README.md b/README.md
index 138bfe8..081e7b4 100644
--- a/README.md
+++ b/README.md
@@ -10,22 +10,6 @@ features:
 > **This package is still WIP**
 
 Todos:
- - add tests
-   - ProviderControls.runAll()
-     - are events called?
-     - custom source or embed order
-     - are fetchers called?
-     - is proxiedFetcher properly defaulted back to normal fetcher?
-   - ProviderControls.runSourceScraper()
-     - is source scraper called?
-     - does it return as expected?
-     - does it error when invalid type or id?
-   - ProviderControls.runEmbedScraper()
-     - is embed scraper called?
-     - does it return as expected?
-     - does it error when invalid id?
-   - makeStandardFetcher()
-     - does serialisation work as expected? (formdata + json + string)
  - add all real providers
  - make default fetcher maker thing work with both undici and node-fetch
 
diff --git a/src/__test__/fetchers/body.test.ts b/src/__test__/fetchers/body.test.ts
new file mode 100644
index 0000000..b47d155
--- /dev/null
+++ b/src/__test__/fetchers/body.test.ts
@@ -0,0 +1,39 @@
+import { serializeBody } from "@/fetchers/body";
+import FormData from "form-data";
+import { describe, expect, it } from "vitest";
+
+describe("serializeBody()", () => {
+  it('should work with standard text', () => {
+    expect(serializeBody("hello world")).toEqual({
+      headers: {},
+      body: "hello world"
+    })
+  })
+
+  it('should work with objects', () => {
+    expect(serializeBody({ hello: "world", a: 42 })).toEqual({
+      headers: {
+        "Content-Type": "application/json"
+      },
+      body: JSON.stringify({ hello: "world", a: 42 })
+    })
+  })
+
+  it('should work x-www-form-urlencoded', () => {
+    const obj = new URLSearchParams()
+    obj.set("a", "b");
+    expect(serializeBody(obj)).toEqual({
+      headers: {},
+      body: obj
+    })
+  })
+  
+  it('should work multipart/form-data', () => {
+    const obj = new FormData()
+    obj.append("a", "b");
+    expect(serializeBody(obj)).toEqual({
+      headers: {},
+      body: obj
+    })
+  })
+})