diff --git a/libraries/WebRTC/Emitter.test.ts b/libraries/WebRTC/Emitter.test.ts
new file mode 100644
index 0000000000..7541217306
--- /dev/null
+++ b/libraries/WebRTC/Emitter.test.ts
@@ -0,0 +1,30 @@
+import * as Emitter from '~/libraries/WebRTC/Emitter'
+
+describe('Emitter.default.on', () => {
+  let inst: any
+
+  beforeEach(() => {
+    inst = new Emitter.default()
+  })
+
+  test('0', () => {
+    const result: any = inst.on(
+      'data:image/svg+xml;charset=UTF-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20version%3D%221.1%22%20baseProfile%3D%22full%22%20width%3D%22undefined%22%20height%3D%22undefined%22%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22grey%22%2F%3E%3Ctext%20x%3D%22NaN%22%20y%3D%22NaN%22%20font-size%3D%2220%22%20alignment-baseline%3D%22middle%22%20text-anchor%3D%22middle%22%20fill%3D%22white%22%3Eundefinedxundefined%3C%2Ftext%3E%3C%2Fsvg%3E',
+      false,
+    )
+    expect(result).toMatchSnapshot()
+  })
+
+  test('1', () => {
+    const result: any = inst.on(
+      'data:image/svg+xml;charset=UTF-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20version%3D%221.1%22%20baseProfile%3D%22full%22%20width%3D%22undefined%22%20height%3D%22undefined%22%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22grey%22%2F%3E%3Ctext%20x%3D%22NaN%22%20y%3D%22NaN%22%20font-size%3D%2220%22%20alignment-baseline%3D%22middle%22%20text-anchor%3D%22middle%22%20fill%3D%22white%22%3Eundefinedxundefined%3C%2Ftext%3E%3C%2Fsvg%3E',
+      true,
+    )
+    expect(result).toMatchSnapshot()
+  })
+
+  test('2', () => {
+    const result: any = inst.on('', true)
+    expect(result).toMatchSnapshot()
+  })
+})
diff --git a/libraries/WebRTC/Libp2p.test.ts b/libraries/WebRTC/Libp2p.test.ts
new file mode 100644
index 0000000000..e79cbd77ea
--- /dev/null
+++ b/libraries/WebRTC/Libp2p.test.ts
@@ -0,0 +1,8 @@
+import * as Libp2p from '~/libraries/WebRTC/Libp2p'
+
+describe('Libp2p.Peer2Peer.getInstance', () => {
+  test('0', () => {
+    const result: any = Libp2p.Peer2Peer.getInstance()
+    expect(result).toMatchSnapshot()
+  })
+})
diff --git a/libraries/WebRTC/__snapshots__/Emitter.test.ts.snap b/libraries/WebRTC/__snapshots__/Emitter.test.ts.snap
new file mode 100644
index 0000000000..722460d87f
--- /dev/null
+++ b/libraries/WebRTC/__snapshots__/Emitter.test.ts.snap
@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Emitter.default.on 0 1`] = `undefined`;
+
+exports[`Emitter.default.on 1 1`] = `undefined`;
+
+exports[`Emitter.default.on 2 1`] = `undefined`;
diff --git a/libraries/WebRTC/__snapshots__/Libp2p.test.ts.snap b/libraries/WebRTC/__snapshots__/Libp2p.test.ts.snap
new file mode 100644
index 0000000000..dc61c92aca
--- /dev/null
+++ b/libraries/WebRTC/__snapshots__/Libp2p.test.ts.snap
@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Libp2p.Peer2Peer.getInstance 0 1`] = `
+Peer2Peer {
+  "_events": Object {},
+}
+`;