feat: peer connection support setConfiguration api

src/mocks/rtc-peer-connection-stub.ts

@@ -27,6 +27,7 @@ class RTCPeerConnectionStub {
   ): Promise<void> {
     return new Promise(() => {});
   }
+  setConfiguration(configuration?: RTCConfiguration): void {}
   onconnectionstatechange: () => void = () => {};
   oniceconnectionstatechange: () => void = () => {};
   onicecandidate: (event: RTCPeerConnectionIceEvent) => void = () => {};

src/peer-connection.spec.ts

@@ -478,6 +478,27 @@ describe('PeerConnection', () => {
     });
   });
 
+  describe('setConfiguration', () => {
+    let mockPc: MockedObjectDeep<RTCPeerConnectionStub>;
+    let pc: PeerConnection;
+
+    beforeEach(() => {
+      jest.clearAllMocks();
+      mockPc = mocked(new RTCPeerConnectionStub(), true);
+      mockCreateRTCPeerConnection.mockReturnValueOnce(mockPc as unknown as RTCPeerConnection);
+      pc = new PeerConnection();
+    });
+
+    it('should call setConfiguration on the underlying peer connection', () => {
+      expect.hasAssertions();
+      const configuration: RTCConfiguration = {
+        iceServers: [{ urls: 'stun:stun.example.com' }],
+      };
+      pc.setConfiguration(configuration);
+      expect(mockPc.setConfiguration).toHaveBeenCalledWith(configuration);
+    });
+  });
+
   describe('setRemoteDescription', () => {
     let mockPc: MockedObjectDeep<RTCPeerConnectionStub>;
     let setRemoteDescriptionSpy: jest.SpyInstance;

src/peer-connection.ts

@@ -172,6 +172,15 @@ class PeerConnection extends EventEmitter<PeerConnectionEventHandlers> {
     return this.iceCandidates;
   }
 
+  /**
+   * Sets the current configuration of the underlying RTCPeerConnection.
+   *
+   * @param configuration - An RTCConfiguration object which provides the options to be set.
+   */
+  setConfiguration(configuration: RTCConfiguration): void {
+    this.pc.setConfiguration(configuration);
+  }
+
   /**
    * Adds a new media track to the set of tracks which will be transmitted to the other peer.
    *