diff --git a/src/base-button/base-button.ts b/src/base-button/base-button.ts
index e6db5098..6f20c129 100644
--- a/src/base-button/base-button.ts
+++ b/src/base-button/base-button.ts
@@ -4,6 +4,7 @@ import { ifDefined } from 'lit/directives/if-defined.js';
 import '../spinner';
 
 export abstract class BaseButton extends LitElement {
+  static formAssociated = true;
   static readonly shadowRootOptions = {
     ...LitElement.shadowRootOptions,
     delegatesFocus: true,
diff --git a/src/button/button.test.ts b/src/button/button.test.ts
new file mode 100644
index 00000000..9781dd06
--- /dev/null
+++ b/src/button/button.test.ts
@@ -0,0 +1,106 @@
+import '../../dist/button/index.js';
+import { fixture, expect, html, oneEvent } from '@open-wc/testing';
+import { TapButton } from './index';
+import sinon from 'sinon';
+
+describe('Test tap-button', () => {
+  it('should render button with default properties', async () => {
+    const el = await fixture<TapButton>(html` <tap-button></tap-button>`);
+    expect(el).to.exist;
+    expect(el?.disabled).to.be.false;
+  });
+
+  it('should reflects properties to attributes', async () => {
+    const el = await fixture<TapButton>(
+      html` <tap-button disabled type="submit" name="test-name"></tap-button>`,
+    );
+    expect(el?.disabled).to.be.true;
+    expect(el?.getAttribute('type')).to.equal('submit');
+    expect(el?.getAttribute('name')).to.equal('test-name');
+  });
+
+  it('should handles button click', async () => {
+    const el = await fixture<TapButton>(
+      html` <tap-button type="submit"></tap-button>`,
+    );
+    setTimeout(() => el?.click(), 0);
+    const event = await oneEvent(el, 'click');
+    expect(event).to.exist;
+  });
+
+  it('should renders slot content', async () => {
+    const el = await fixture(html`<tap-button>تایید</tap-button>`);
+    const slot = el.shadowRoot!.querySelector('slot');
+    const slotContent = slot!.assignedNodes()[0];
+    expect(slotContent.textContent).to.equal('تایید');
+  });
+
+  it('should be accessible', async () => {
+    const el = await fixture(
+      html`<tap-button label="Test Button"></tap-button>`,
+    );
+
+    await expect(el).to.be.accessible();
+  });
+
+  it('should conditionally renders loading state', async () => {
+    const el = await fixture<TapButton>(html`<tap-button loading></tap-button>`,);
+    // Check if the spinner is rendered when loading is true
+    const spinner = el.shadowRoot!.querySelector('.spinner');
+
+    expect(spinner).to.exist;
+
+    // Check if the content slot is still rendered when loading is true
+    const content = el.shadowRoot!.querySelector('.content');
+    expect(content).to.exist;
+
+    // Change the loading property and check if the spinner is removed
+    el.loading = false;
+    await el.updateComplete;
+
+    // Check if the spinner is not rendered when loading is false
+    expect(el.shadowRoot!.querySelector('.spinner')).to.be.null;
+
+    // Check if the slot is rendered when loading is false
+    expect(el.shadowRoot!.querySelector('slot')).to.exist;
+  });
+
+  it('should submit when the button is inside the form', async () => {
+    const form = await fixture<HTMLFormElement>(html`
+        <form action="" method="post">
+          <tap-button type="submit">Submit</tap-button>
+        </form>
+      `);
+    const button = form.querySelector('tap-button');
+
+    const handleSubmit = sinon.spy((event: SubmitEvent) => event.preventDefault());
+
+    addEventListener('submit', handleSubmit);
+
+    // Dispatching a click event on the button element
+    const buttonElement = button!.shadowRoot!.querySelector('button');
+
+    buttonElement!.click();
+    expect(handleSubmit).to.have.been.called;
+  });
+
+  it('should submit when the button is outside the form and has a form attribute', async () => {
+    const form = await fixture<HTMLFormElement>(html`
+        <form action="" method="post">
+          <tap-button type="submit">Submit</tap-button>
+        </form>
+      `);
+    const button = form.querySelector('tap-button');
+
+    const handleSubmit = sinon.spy((event: SubmitEvent) => event.preventDefault());
+
+    addEventListener('submit', handleSubmit);
+
+    // Dispatching a click event on the button element
+    const buttonElement = button!.shadowRoot!.querySelector('button');
+
+    buttonElement!.click();
+    expect(handleSubmit).to.have.been.called;
+  });
+
+});