internal/bootstrap/bootstrap_test.go

@@ -198,8 +198,8 @@ func (m *MockGRPCClient) ClientConn() *grpc.ClientConn {
 }
 
 func (m *MockGRPCClient) AuthorizeConn(ctx context.Context, token string) (authorized bool, user string, err error) {
-	m.Called()
+	args := m.Called(ctx, token)
-	return
+	return args.Bool(0), args.String(1), args.Error(2)
 }
 
 func (m *MockGRPCClient) CheckServerHealth(ctx context.Context) error {

internal/grpc/client/client_test.go

@@ -8,14 +8,18 @@ import (
 	"testing"
 	"time"
 
+	"tunnel_pls/internal/port"
 	"tunnel_pls/internal/registry"
+	"tunnel_pls/session/forwarder"
 	"tunnel_pls/session/interaction"
 	"tunnel_pls/session/lifecycle"
 	"tunnel_pls/session/slug"
 	"tunnel_pls/types"
 
 	proto "git.fossy.my.id/bagas/tunnel-please-grpc/gen"
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/mock"
+	"golang.org/x/crypto/ssh"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/health/grpc_health_v1"
@@ -78,23 +82,15 @@ func TestAuthorizeConn(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			mockUserSvc.checkFunc = func(ctx context.Context, in *proto.CheckRequest, opts ...grpc.CallOption) (*proto.CheckResponse, error) {
+			mockUserSvc.On("Check", mock.Anything, &proto.CheckRequest{AuthToken: tt.token}, mock.Anything).Return(tt.mockResp, tt.mockErr).Once()
-				if in.AuthToken != tt.token {
-					t.Errorf("expected token %s, got %s", tt.token, in.AuthToken)
-				}
-				return tt.mockResp, tt.mockErr
-			}
 
 			auth, user, err := c.AuthorizeConn(context.Background(), tt.token)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("AuthorizeConn() error = %v, wantErr %v", err, tt.wantErr)
 			}
-			if auth != tt.wantAuth {
+			assert.Equal(t, tt.wantAuth, auth)
-				t.Errorf("AuthorizeConn() auth = %v, wantAuth %v", auth, tt.wantAuth)
+			assert.Equal(t, tt.wantUser, user)
-			}
+			mockUserSvc.AssertExpectations(t)
-			if user != tt.wantUser {
-				t.Errorf("AuthorizeConn() user = %s, wantUser %s", user, tt.wantUser)
-			}
 		})
 	}
 }
@@ -330,25 +326,15 @@ func TestHandleAuthError_WaitFail(t *testing.T) {
 }
 
 func TestProcessEventStream(t *testing.T) {
-	mockStream := &mockSubscribeClient{}
 	c := &client{}
 
 	t.Run("UnknownEventType", func(t *testing.T) {
-		mockStream.recvFunc = func() (*proto.Events, error) {
+		mockStream := &mockSubscribeClient{}
-			return &proto.Events{Type: proto.EventType(999)}, nil
+		mockStream.On("Recv").Return(&proto.Events{Type: proto.EventType(999)}, nil).Once()
-		}
+		mockStream.On("Recv").Return(nil, io.EOF).Once()
-		first := true
+
-		mockStream.recvFunc = func() (*proto.Events, error) {
-			if first {
-				first = false
-				return &proto.Events{Type: proto.EventType(999)}, nil
-			}
-			return nil, io.EOF
-		}
 		err := c.processEventStream(mockStream)
-		if !errors.Is(err, io.EOF) {
+		assert.ErrorIs(t, err, io.EOF)
-			t.Errorf("expected EOF, got %v", err)
-		}
 	})
 
 	t.Run("DispatchSuccess", func(t *testing.T) {
@@ -360,10 +346,7 @@ func TestProcessEventStream(t *testing.T) {
 
 		for _, et := range events {
 			t.Run(et.String(), func(t *testing.T) {
-				first := true
+				mockStream := &mockSubscribeClient{}
-				mockStream.recvFunc = func() (*proto.Events, error) {
-					if first {
-						first = false
 				payload := &proto.Events{Type: et}
 				switch et {
 				case proto.EventType_SLUG_CHANGE:
@@ -373,74 +356,77 @@ func TestProcessEventStream(t *testing.T) {
 				case proto.EventType_TERMINATE_SESSION:
 					payload.Payload = &proto.Events_TerminateSessionEvent{TerminateSessionEvent: &proto.TerminateSessionEvent{}}
 				}
-						return payload, nil
+
-					}
+				mockStream.On("Recv").Return(payload, nil).Once()
-					return nil, io.EOF
+				mockStream.On("Recv").Return(nil, io.EOF).Once()
-				}
+
 				mockReg := &mockRegistry{}
-				mockReg.getAllSessionFromUserFunc = func(user string) []registry.Session { return nil }
-				mockReg.getFunc = func(key registry.Key) (registry.Session, error) { return nil, errors.New("fail") }
-				mockReg.getWithUserFunc = func(user string, key registry.Key) (registry.Session, error) { return nil, errors.New("fail") }
 				c.sessionRegistry = mockReg
-				c.config = &MockConfig{}
+				mCfg := &MockConfig{}
-				c.config.(*MockConfig).On("Domain").Return("test.com")
+				c.config = mCfg
-				mockStream.sendFunc = func(n *proto.Node) error { return nil }
+				mCfg.On("Domain").Return("test.com").Maybe()
+
+				switch et {
+				case proto.EventType_SLUG_CHANGE:
+					mockReg.On("Get", mock.Anything).Return(nil, errors.New("fail")).Once()
+				case proto.EventType_GET_SESSIONS:
+					mockReg.On("GetAllSessionFromUser", mock.Anything).Return(nil).Once()
+				case proto.EventType_TERMINATE_SESSION:
+					mockReg.On("GetWithUser", mock.Anything, mock.Anything).Return(nil, errors.New("fail")).Once()
+				}
+				mockStream.On("Send", mock.Anything).Return(nil).Once()
 
 				err := c.processEventStream(mockStream)
-				if !errors.Is(err, io.EOF) {
+				assert.ErrorIs(t, err, io.EOF)
-					t.Errorf("expected EOF, got %v", err)
-				}
 			})
 		}
 	})
 
 	t.Run("HandlerError", func(t *testing.T) {
-		first := true
+		mockStream := &mockSubscribeClient{}
-		mockStream.recvFunc = func() (*proto.Events, error) {
+		mockStream.On("Recv").Return(&proto.Events{
-			if first {
+			Type:    proto.EventType_SLUG_CHANGE,
-				first = false
+			Payload: &proto.Events_SlugEvent{SlugEvent: &proto.SlugChangeEvent{}},
-				return &proto.Events{Type: proto.EventType_SLUG_CHANGE, Payload: &proto.Events_SlugEvent{SlugEvent: &proto.SlugChangeEvent{}}}, nil
+		}, nil).Once()
-			}
+
-			return nil, io.EOF
-		}
 		mockReg := &mockRegistry{}
-		mockReg.getFunc = func(key registry.Key) (registry.Session, error) { return nil, errors.New("fail") }
+		mockReg.On("Get", mock.Anything).Return(nil, errors.New("fail")).Once()
 		c.sessionRegistry = mockReg
-		mockStream.sendFunc = func(n *proto.Node) error { return status.Error(codes.Unavailable, "send fail") }
+
+		expectedErr := status.Error(codes.Unavailable, "send fail")
+		mockStream.On("Send", mock.Anything).Return(expectedErr).Once()
 
 		err := c.processEventStream(mockStream)
-		if !errors.Is(err, status.Error(codes.Unavailable, "send fail")) {
+		assert.Equal(t, expectedErr, err)
-			t.Errorf("expected send fail error, got %v", err)
-		}
 	})
 }
 
 func TestSendNode(t *testing.T) {
 	c := &client{}
-	mockStream := &mockSubscribeClient{}
 
 	t.Run("Success", func(t *testing.T) {
-		mockStream.sendFunc = func(n *proto.Node) error { return nil }
+		mockStream := &mockSubscribeClient{}
+		mockStream.On("Send", mock.Anything).Return(nil).Once()
 		err := c.sendNode(mockStream, &proto.Node{}, "context")
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("sendNode error = %v", err)
+		mockStream.AssertExpectations(t)
-		}
 	})
 
 	t.Run("ConnectionError", func(t *testing.T) {
-		mockStream.sendFunc = func(n *proto.Node) error { return status.Error(codes.Unavailable, "fail") }
+		mockStream := &mockSubscribeClient{}
+		expectedErr := status.Error(codes.Unavailable, "fail")
+		mockStream.On("Send", mock.Anything).Return(expectedErr).Once()
 		err := c.sendNode(mockStream, &proto.Node{}, "context")
-		if err == nil {
+		assert.ErrorIs(t, err, expectedErr)
-			t.Errorf("expected error")
+		mockStream.AssertExpectations(t)
-		}
 	})
 
 	t.Run("OtherError", func(t *testing.T) {
-		mockStream.sendFunc = func(n *proto.Node) error { return status.Error(codes.Internal, "fail") }
+		mockStream := &mockSubscribeClient{}
+		mockStream.On("Send", mock.Anything).Return(status.Error(codes.Internal, "fail")).Once()
 		err := c.sendNode(mockStream, &proto.Node{}, "context")
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("expected nil error for non-connection error (logged only)")
+		mockStream.AssertExpectations(t)
-		}
 	})
 }
 
@@ -462,80 +448,47 @@ func TestHandleSlugChange(t *testing.T) {
 	t.Run("Success", func(t *testing.T) {
 		mockSess := &mockSession{}
 		mockInter := &mockInteraction{}
-		mockSess.interactionFunc = func() interaction.Interaction { return mockInter }
+		mockSess.On("Interaction").Return(mockInter).Once()
+		mockInter.On("Redraw").Return().Once()
 
-		mockReg.getFunc = func(key registry.Key) (registry.Session, error) {
+		mockReg.On("Get", types.SessionKey{Id: "old-slug", Type: types.TunnelTypeHTTP}).Return(mockSess, nil).Once()
-			if key.Id != "old-slug" {
+		mockReg.On("Update", "mas-fuad", types.SessionKey{Id: "old-slug", Type: types.TunnelTypeHTTP}, types.SessionKey{Id: "new-slug", Type: types.TunnelTypeHTTP}).Return(nil).Once()
-				t.Errorf("expected old-slug, got %s", key.Id)
-			}
-			return mockSess, nil
-		}
-		mockReg.updateFunc = func(user string, oldKey, newKey registry.Key) error {
-			if user != "mas-fuad" || oldKey.Id != "old-slug" || newKey.Id != "new-slug" {
-				t.Errorf("unexpected update args")
-			}
-			return nil
-		}
 
-		sent := false
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-		mockStream.sendFunc = func(n *proto.Node) error {
+			return n.Type == proto.EventType_SLUG_CHANGE_RESPONSE && n.GetSlugEventResponse().Success
-			sent = true
+		})).Return(nil).Once()
-			if n.Type != proto.EventType_SLUG_CHANGE_RESPONSE {
-				t.Errorf("expected slug change response")
-			}
-			resp := n.GetSlugEventResponse()
-			if !resp.Success {
-				t.Errorf("expected success")
-			}
-			return nil
-		}
 
 		err := c.handleSlugChange(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleSlugChange error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
-		if !mockInter.redrawCalled {
+		mockInter.AssertExpectations(t)
-			t.Errorf("redraw was not called")
-		}
-		if !sent {
-			t.Errorf("response not sent")
-		}
 	})
 
 	t.Run("SessionNotFound", func(t *testing.T) {
-		mockReg.getFunc = func(key registry.Key) (registry.Session, error) {
+		mockReg.On("Get", mock.Anything).Return(nil, errors.New("not found")).Once()
-			return nil, errors.New("not found")
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-		}
+			return !n.GetSlugEventResponse().Success && n.GetSlugEventResponse().Message == "not found"
-		mockStream.sendFunc = func(n *proto.Node) error {
+		})).Return(nil).Once()
-			resp := n.GetSlugEventResponse()
+
-			if resp.Success || resp.Message != "not found" {
-				t.Errorf("unexpected failure response: %v", resp)
-			}
-			return nil
-		}
 		err := c.handleSlugChange(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleSlugChange should return nil if error is handled via response, but it currently returns whatever sendNode returns")
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
 	})
 
 	t.Run("UpdateError", func(t *testing.T) {
 		mockSess := &mockSession{}
-		mockReg.getFunc = func(key registry.Key) (registry.Session, error) { return mockSess, nil }
+		mockReg.On("Get", mock.Anything).Return(mockSess, nil).Once()
-		mockReg.updateFunc = func(user string, oldKey, newKey registry.Key) error {
+		mockReg.On("Update", mock.Anything, mock.Anything, mock.Anything).Return(errors.New("update fail")).Once()
-			return errors.New("update fail")
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-		}
+			return !n.GetSlugEventResponse().Success && n.GetSlugEventResponse().Message == "update fail"
-		mockStream.sendFunc = func(n *proto.Node) error {
+		})).Return(nil).Once()
-			resp := n.GetSlugEventResponse()
+
-			if resp.Success || resp.Message != "update fail" {
-				t.Errorf("unexpected failure response: %v", resp)
-			}
-			return nil
-		}
 		err := c.handleSlugChange(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleSlugChange error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
 	})
 }
 
@@ -543,7 +496,6 @@ func TestHandleGetSessions(t *testing.T) {
 	mockReg := &mockRegistry{}
 	mockStream := &mockSubscribeClient{}
 	mockCfg := &MockConfig{}
-	mockCfg.On("Domain").Return("test.com")
 	c := &client{sessionRegistry: mockReg, config: mockCfg}
 
 	evt := &proto.Events{
@@ -557,43 +509,30 @@ func TestHandleGetSessions(t *testing.T) {
 	t.Run("Success", func(t *testing.T) {
 		now := time.Now()
 		mockSess := &mockSession{}
-		mockSess.detailFunc = func() *types.Detail {
+		mockSess.On("Detail").Return(&types.Detail{
-			return &types.Detail{
 			ForwardingType: "http",
 			Slug:           "myslug",
 			UserID:         "mas-fuad",
 			Active:         true,
 			StartedAt:      now,
-			}
+		}).Once()
-		}
 
-		mockReg.getAllSessionFromUserFunc = func(user string) []registry.Session {
+		mockReg.On("GetAllSessionFromUser", "mas-fuad").Return([]registry.Session{mockSess}).Once()
-			if user != "mas-fuad" {
+		mockCfg.On("Domain").Return("test.com").Once()
-				t.Errorf("expected mas-fuad, got %s", user)
-			}
-			return []registry.Session{mockSess}
-		}
 
-		sent := false
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-		mockStream.sendFunc = func(n *proto.Node) error {
-			sent = true
 			if n.Type != proto.EventType_GET_SESSIONS {
-				t.Errorf("expected get sessions response type")
+				return false
-			}
-			resp := n.GetGetSessionsEvent()
-			if len(resp.Details) != 1 || resp.Details[0].Slug != "myslug" {
-				t.Errorf("unexpected details: %v", resp.Details)
-			}
-			return nil
 			}
+			details := n.GetGetSessionsEvent().Details
+			return len(details) == 1 && details[0].Slug == "myslug"
+		})).Return(nil).Once()
 
 		err := c.handleGetSessions(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleGetSessions error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
-		if !sent {
+		mockCfg.AssertExpectations(t)
-			t.Errorf("response not sent")
-		}
 	})
 }
 
@@ -615,41 +554,20 @@ func TestHandleTerminateSession(t *testing.T) {
 	t.Run("Success", func(t *testing.T) {
 		mockSess := &mockSession{}
 		mockLife := &mockLifecycle{}
-		mockSess.lifecycleFunc = func() lifecycle.Lifecycle { return mockLife }
+		mockSess.On("Lifecycle").Return(mockLife).Once()
+		mockLife.On("Close").Return(nil).Once()
 
-		closed := false
+		mockReg.On("GetWithUser", "mas-fuad", types.SessionKey{Id: "myslug", Type: types.TunnelTypeHTTP}).Return(mockSess, nil).Once()
-		mockLife.closeFunc = func() error {
-			closed = true
-			return nil
-		}
 
-		mockReg.getWithUserFunc = func(user string, key registry.Key) (registry.Session, error) {
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-			if user != "mas-fuad" || key.Id != "myslug" || key.Type != types.TunnelTypeHTTP {
+			return n.GetTerminateSessionEventResponse().Success
-				t.Errorf("unexpected get args")
+		})).Return(nil).Once()
-			}
-			return mockSess, nil
-		}
-
-		sent := false
-		mockStream.sendFunc = func(n *proto.Node) error {
-			sent = true
-			resp := n.GetTerminateSessionEventResponse()
-			if !resp.Success {
-				t.Errorf("expected success")
-			}
-			return nil
-		}
 
 		err := c.handleTerminateSession(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleTerminateSession error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
-		if !closed {
+		mockLife.AssertExpectations(t)
-			t.Errorf("close was not called")
-		}
-		if !sent {
-			t.Errorf("response not sent")
-		}
 	})
 
 	t.Run("TunnelTypeUnknown", func(t *testing.T) {
@@ -660,54 +578,46 @@ func TestHandleTerminateSession(t *testing.T) {
 				},
 			},
 		}
-		mockStream.sendFunc = func(n *proto.Node) error {
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
 			resp := n.GetTerminateSessionEventResponse()
-			if resp.Success || resp.Message == "" {
+			return !resp.Success && resp.Message != ""
-				t.Errorf("expected failure response")
+		})).Return(nil).Once()
-			}
+
-			return nil
-		}
 		err := c.handleTerminateSession(mockStream, badEvt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleTerminateSession error = %v", err)
+		mockStream.AssertExpectations(t)
-		}
 	})
 
 	t.Run("SessionNotFound", func(t *testing.T) {
-		mockReg.getWithUserFunc = func(user string, key registry.Key) (registry.Session, error) {
+		mockReg.On("GetWithUser", mock.Anything, mock.Anything).Return(nil, errors.New("not found")).Once()
-			return nil, errors.New("not found")
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
-		}
-		mockStream.sendFunc = func(n *proto.Node) error {
 			resp := n.GetTerminateSessionEventResponse()
-			if resp.Success || resp.Message != "not found" {
+			return !resp.Success && resp.Message == "not found"
-				t.Errorf("unexpected failure response: %v", resp)
+		})).Return(nil).Once()
-			}
+
-			return nil
-		}
 		err := c.handleTerminateSession(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleTerminateSession error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
 	})
 
 	t.Run("CloseError", func(t *testing.T) {
 		mockSess := &mockSession{}
 		mockLife := &mockLifecycle{}
-		mockSess.lifecycleFunc = func() lifecycle.Lifecycle { return mockLife }
+		mockSess.On("Lifecycle").Return(mockLife).Once()
-		mockLife.closeFunc = func() error { return errors.New("close fail") }
+		mockLife.On("Close").Return(errors.New("close fail")).Once()
-		mockReg.getWithUserFunc = func(user string, key registry.Key) (registry.Session, error) { return mockSess, nil }
+		mockReg.On("GetWithUser", mock.Anything, mock.Anything).Return(mockSess, nil).Once()
 
-		mockStream.sendFunc = func(n *proto.Node) error {
+		mockStream.On("Send", mock.MatchedBy(func(n *proto.Node) bool {
 			resp := n.GetTerminateSessionEventResponse()
-			if resp.Success || resp.Message != "close fail" {
+			return !resp.Success && resp.Message == "close fail"
-				t.Errorf("expected failure response: %v", resp)
+		})).Return(nil).Once()
-			}
+
-			return nil
-		}
 		err := c.handleTerminateSession(mockStream, evt)
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("handleTerminateSession error = %v", err)
+		mockReg.AssertExpectations(t)
-		}
+		mockStream.AssertExpectations(t)
+		mockLife.AssertExpectations(t)
 	})
 }
 
@@ -718,42 +628,29 @@ func TestSubscribeAndProcess(t *testing.T) {
 	backoff := time.Second
 
 	t.Run("SubscribeError", func(t *testing.T) {
-		mockEventSvc.subscribeFunc = func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
+		expectedErr := status.Error(codes.Unauthenticated, "unauth")
-			return nil, status.Error(codes.Unauthenticated, "unauth")
+		mockEventSvc.On("Subscribe", mock.Anything, mock.Anything).Return(nil, expectedErr).Once()
-		}
 		err := c.subscribeAndProcess(ctx, "id", "token", &backoff)
-		if !errors.Is(err, status.Error(codes.Unauthenticated, "unauth")) {
+		assert.ErrorIs(t, err, expectedErr)
-			t.Errorf("expected unauth error, got %v", err)
-		}
 	})
 
 	t.Run("AuthSendError", func(t *testing.T) {
 		mockStream := &mockSubscribeClient{}
-		mockEventSvc.subscribeFunc = func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
+		mockEventSvc.On("Subscribe", mock.Anything, mock.Anything).Return(mockStream, nil).Once()
-			return mockStream, nil
+		expectedErr := status.Error(codes.Internal, "send fail")
-		}
+		mockStream.On("Send", mock.Anything).Return(expectedErr).Once()
-		mockStream.sendFunc = func(n *proto.Node) error {
-			return status.Error(codes.Internal, "send fail")
-		}
 		err := c.subscribeAndProcess(ctx, "id", "token", &backoff)
-		if !errors.Is(err, status.Error(codes.Internal, "send fail")) {
+		assert.ErrorIs(t, err, expectedErr)
-			t.Errorf("expected send fail, got %v", err)
-		}
 	})
 
 	t.Run("StreamError", func(t *testing.T) {
 		mockStream := &mockSubscribeClient{}
-		mockEventSvc.subscribeFunc = func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
+		mockEventSvc.On("Subscribe", mock.Anything, mock.Anything).Return(mockStream, nil).Once()
-			return mockStream, nil
+		mockStream.On("Send", mock.Anything).Return(nil).Once()
-		}
+		expectedErr := status.Error(codes.Internal, "stream fail")
-		mockStream.sendFunc = func(n *proto.Node) error { return nil }
+		mockStream.On("Recv").Return(nil, expectedErr).Once()
-		mockStream.recvFunc = func() (*proto.Events, error) {
-			return nil, status.Error(codes.Internal, "stream fail")
-		}
 		err := c.subscribeAndProcess(ctx, "id", "token", &backoff)
-		if !errors.Is(err, status.Error(codes.Internal, "stream fail")) {
+		assert.ErrorIs(t, err, expectedErr)
-			t.Errorf("expected stream fail, got %v", err)
-		}
 	})
 }
 
@@ -762,13 +659,10 @@ func TestSubscribeEvents(t *testing.T) {
 	c := &client{eventService: mockEventSvc}
 
 	t.Run("ReturnsOnError", func(t *testing.T) {
-		mockEventSvc.subscribeFunc = func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
+		expectedErr := errors.New("fatal error")
-			return nil, errors.New("fatal error")
+		mockEventSvc.On("Subscribe", mock.Anything, mock.Anything).Return(nil, expectedErr).Once()
-		}
 		err := c.SubscribeEvents(context.Background(), "id", "token")
-		if err == nil || err.Error() != "fatal error" {
+		assert.ErrorIs(t, err, expectedErr)
-			t.Errorf("expected fatal error, got %v", err)
-		}
 	})
 
 	t.Run("RetryLoop", func(t *testing.T) {
@@ -779,19 +673,11 @@ func TestSubscribeEvents(t *testing.T) {
 		ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond)
 		defer cancel()
 
-		callCount := 0
+		mockEventSvc.On("Subscribe", mock.Anything, mock.Anything).Return(nil, status.Error(codes.Unavailable, "unavailable"))
-		mockEventSvc.subscribeFunc = func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
-			callCount++
-			return nil, status.Error(codes.Unavailable, "unavailable")
-		}
 
 		err := c.SubscribeEvents(ctx, "id", "token")
-		if !errors.Is(err, context.DeadlineExceeded) && !errors.Is(err, context.Canceled) {
+		assert.True(t, errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled))
-			t.Errorf("expected timeout/canceled error, got %v", err)
+		mockEventSvc.AssertExpectations(t)
-		}
-		if callCount <= 1 {
-			t.Errorf("expected multiple calls due to retry, got %d", callCount)
-		}
 	})
 }
 
@@ -806,33 +692,24 @@ func TestCheckServerHealth(t *testing.T) {
 	c := &client{}
 
 	t.Run("Success", func(t *testing.T) {
-		mockHealth.checkFunc = func(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthCheckResponse, error) {
+		mockHealth.On("Check", mock.Anything, mock.Anything, mock.Anything).Return(&grpc_health_v1.HealthCheckResponse{Status: grpc_health_v1.HealthCheckResponse_SERVING}, nil).Once()
-			return &grpc_health_v1.HealthCheckResponse{Status: grpc_health_v1.HealthCheckResponse_SERVING}, nil
-		}
 		err := c.CheckServerHealth(context.Background())
-		if err != nil {
+		assert.NoError(t, err)
-			t.Errorf("expected nil error, got %v", err)
+		mockHealth.AssertExpectations(t)
-		}
 	})
 
 	t.Run("Error", func(t *testing.T) {
-		mockHealth.checkFunc = func(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthCheckResponse, error) {
+		mockHealth.On("Check", mock.Anything, mock.Anything, mock.Anything).Return(nil, errors.New("health fail")).Once()
-			return nil, errors.New("health fail")
-		}
 		err := c.CheckServerHealth(context.Background())
-		if err == nil || err.Error() != "health check failed: health fail" {
+		assert.ErrorContains(t, err, "health check failed: health fail")
-			t.Errorf("expected health fail error, got %v", err)
+		mockHealth.AssertExpectations(t)
-		}
 	})
 
 	t.Run("NotServing", func(t *testing.T) {
-		mockHealth.checkFunc = func(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthCheckResponse, error) {
+		mockHealth.On("Check", mock.Anything, mock.Anything, mock.Anything).Return(&grpc_health_v1.HealthCheckResponse{Status: grpc_health_v1.HealthCheckResponse_NOT_SERVING}, nil).Once()
-			return &grpc_health_v1.HealthCheckResponse{Status: grpc_health_v1.HealthCheckResponse_NOT_SERVING}, nil
-		}
 		err := c.CheckServerHealth(context.Background())
-		if err == nil || err.Error() != "server not serving: NOT_SERVING" {
+		assert.ErrorContains(t, err, "server not serving: NOT_SERVING")
-			t.Errorf("expected not serving error, got %v", err)
+		mockHealth.AssertExpectations(t)
-		}
 	})
 }
 
@@ -897,88 +774,192 @@ func (m *MockConfig) NodeToken() string         { return m.Called().String(0) }
 func (m *MockConfig) KeyLoc() string            { return m.Called().String(0) }
 
 type mockRegistry struct {
-	registry.Registry
+	mock.Mock
-	getFunc                   func(key registry.Key) (registry.Session, error)
-	getWithUserFunc           func(user string, key registry.Key) (registry.Session, error)
-	updateFunc                func(user string, oldKey, newKey registry.Key) error
-	getAllSessionFromUserFunc func(user string) []registry.Session
 }
 
 func (m *mockRegistry) Get(key registry.Key) (registry.Session, error) {
-	return m.getFunc(key)
+	args := m.Called(key)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(registry.Session), args.Error(1)
 }
 func (m *mockRegistry) GetWithUser(user string, key registry.Key) (registry.Session, error) {
-	return m.getWithUserFunc(user, key)
+	args := m.Called(user, key)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(registry.Session), args.Error(1)
 }
 func (m *mockRegistry) Update(user string, oldKey, newKey registry.Key) error {
-	return m.updateFunc(user, oldKey, newKey)
+	return m.Called(user, oldKey, newKey).Error(0)
 }
 func (m *mockRegistry) GetAllSessionFromUser(user string) []registry.Session {
-	return m.getAllSessionFromUserFunc(user)
+	args := m.Called(user)
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).([]registry.Session)
+}
+func (m *mockRegistry) Register(key registry.Key, session registry.Session) bool {
+	return m.Called(key, session).Bool(0)
+}
+func (m *mockRegistry) Remove(key registry.Key) {
+	m.Called(key)
 }
 
 type mockSession struct {
-	registry.Session
+	mock.Mock
-	lifecycleFunc   func() lifecycle.Lifecycle
-	interactionFunc func() interaction.Interaction
-	detailFunc      func() *types.Detail
-	slugFunc        func() slug.Slug
 }
 
-func (m *mockSession) Lifecycle() lifecycle.Lifecycle       { return m.lifecycleFunc() }
+func (m *mockSession) Lifecycle() lifecycle.Lifecycle {
-func (m *mockSession) Interaction() interaction.Interaction { return m.interactionFunc() }
+	args := m.Called()
-func (m *mockSession) Detail() *types.Detail                { return m.detailFunc() }
+	if args.Get(0) == nil {
-func (m *mockSession) Slug() slug.Slug                      { return m.slugFunc() }
+		return nil
+	}
+	return args.Get(0).(lifecycle.Lifecycle)
+}
+func (m *mockSession) Interaction() interaction.Interaction {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(interaction.Interaction)
+}
+func (m *mockSession) Detail() *types.Detail {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(*types.Detail)
+}
+func (m *mockSession) Slug() slug.Slug {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(slug.Slug)
+}
+func (m *mockSession) Forwarder() forwarder.Forwarder {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(forwarder.Forwarder)
+}
 
 type mockInteraction struct {
-	interaction.Interaction
+	mock.Mock
-	redrawCalled bool
 }
 
-func (m *mockInteraction) Redraw() { m.redrawCalled = true }
+func (m *mockInteraction) Start()                             { m.Called() }
+func (m *mockInteraction) Stop()                              { m.Called() }
+func (m *mockInteraction) Redraw()                            { m.Called() }
+func (m *mockInteraction) SetWH(w, h int)                     { m.Called(w, h) }
+func (m *mockInteraction) SetChannel(channel ssh.Channel)     { m.Called(channel) }
+func (m *mockInteraction) SetMode(mode types.InteractiveMode) { m.Called(mode) }
+func (m *mockInteraction) Mode() types.InteractiveMode {
+	return m.Called().Get(0).(types.InteractiveMode)
+}
+func (m *mockInteraction) Send(message string) error { return m.Called(message).Error(0) }
 
 type mockLifecycle struct {
-	lifecycle.Lifecycle
+	mock.Mock
-	closeFunc func() error
 }
 
-func (m *mockLifecycle) Close() error { return m.closeFunc() }
+func (m *mockLifecycle) Close() error { return m.Called().Error(0) }
+func (m *mockLifecycle) Channel() ssh.Channel {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(ssh.Channel)
+}
+func (m *mockLifecycle) Connection() ssh.Conn {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(ssh.Conn)
+}
+func (m *mockLifecycle) User() string                         { return m.Called().String(0) }
+func (m *mockLifecycle) SetChannel(channel ssh.Channel)       { m.Called(channel) }
+func (m *mockLifecycle) SetStatus(status types.SessionStatus) { m.Called(status) }
+func (m *mockLifecycle) IsActive() bool                       { return m.Called().Bool(0) }
+func (m *mockLifecycle) StartedAt() time.Time                 { return m.Called().Get(0).(time.Time) }
+func (m *mockLifecycle) PortRegistry() port.Port {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(port.Port)
+}
 
 type mockEventServiceClient struct {
-	proto.EventServiceClient
+	mock.Mock
-	subscribeFunc func(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error)
 }
 
 func (m *mockEventServiceClient) Subscribe(ctx context.Context, opts ...grpc.CallOption) (proto.EventService_SubscribeClient, error) {
-	return m.subscribeFunc(ctx, opts...)
+	args := m.Called(ctx, opts)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(proto.EventService_SubscribeClient), args.Error(1)
 }
 
 type mockSubscribeClient struct {
+	mock.Mock
 	grpc.ClientStream
-	sendFunc func(*proto.Node) error
-	recvFunc func() (*proto.Events, error)
 }
 
-func (m *mockSubscribeClient) Send(n *proto.Node) error     { return m.sendFunc(n) }
+func (m *mockSubscribeClient) Send(n *proto.Node) error { return m.Called(n).Error(0) }
-func (m *mockSubscribeClient) Recv() (*proto.Events, error) { return m.recvFunc() }
+func (m *mockSubscribeClient) Recv() (*proto.Events, error) {
-func (m *mockSubscribeClient) Context() context.Context     { return context.Background() }
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(*proto.Events), args.Error(1)
+}
+func (m *mockSubscribeClient) Context() context.Context { return m.Called().Get(0).(context.Context) }
 
 type mockUserServiceClient struct {
-	proto.UserServiceClient
+	mock.Mock
-	checkFunc func(ctx context.Context, in *proto.CheckRequest, opts ...grpc.CallOption) (*proto.CheckResponse, error)
 }
 
 func (m *mockUserServiceClient) Check(ctx context.Context, in *proto.CheckRequest, opts ...grpc.CallOption) (*proto.CheckResponse, error) {
-	return m.checkFunc(ctx, in, opts...)
+	args := m.Called(ctx, in, opts)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(*proto.CheckResponse), args.Error(1)
 }
 
 type mockHealthClient struct {
-	grpc_health_v1.HealthClient
+	mock.Mock
-	checkFunc func(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthCheckResponse, error)
 }
 
 func (m *mockHealthClient) Check(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthCheckResponse, error) {
-	return m.checkFunc(ctx, in, opts...)
+	args := m.Called(ctx, in, opts)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(*grpc_health_v1.HealthCheckResponse), args.Error(1)
+}
+
+func (m *mockHealthClient) Watch(ctx context.Context, in *grpc_health_v1.HealthCheckRequest, opts ...grpc.CallOption) (grpc_health_v1.Health_WatchClient, error) {
+	args := m.Called(ctx, in, opts)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(grpc_health_v1.Health_WatchClient), args.Error(1)
+}
+
+func (m *mockHealthClient) List(ctx context.Context, in *grpc_health_v1.HealthListRequest, opts ...grpc.CallOption) (*grpc_health_v1.HealthListResponse, error) {
+	args := m.Called(ctx, in, opts)
+	if args.Get(0) == nil {
+		return nil, args.Error(1)
+	}
+	return args.Get(0).(*grpc_health_v1.HealthListResponse), args.Error(1)
 }
 
 func TestProtoToTunnelType(t *testing.T) {

internal/middleware/forwardedfor_test.go

@@ -1,40 +1,42 @@
 package middleware
 
 import (
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
 	"net"
 	"testing"
 )
 
 type mockRequestHeader struct {
-	headers map[string]string
+	mock.Mock
 }
 
 func (m *mockRequestHeader) Value(key string) string {
-	return m.headers[key]
+	return m.Called(key).String(0)
 }
 
 func (m *mockRequestHeader) Set(key string, value string) {
-	m.headers[key] = value
+	m.Called(key, value)
 }
 
 func (m *mockRequestHeader) Remove(key string) {
-	delete(m.headers, key)
+	m.Called(key)
 }
 
 func (m *mockRequestHeader) Finalize() []byte {
-	return []byte{}
+	return m.Called().Get(0).([]byte)
 }
 
 func (m *mockRequestHeader) Method() string {
-	return ""
+	return m.Called().String(0)
 }
 
 func (m *mockRequestHeader) Path() string {
-	return ""
+	return m.Called().String(0)
 }
 
 func (m *mockRequestHeader) Version() string {
-	return ""
+	return m.Called().String(0)
 }
 
 func TestForwardedFor_HandleRequest(t *testing.T) {
@@ -73,23 +75,19 @@ func TestForwardedFor_HandleRequest(t *testing.T) {
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
 			ff := NewForwardedFor(tc.addr)
-			reqHeader := &mockRequestHeader{headers: make(map[string]string)}
+			reqHeader := new(mockRequestHeader)
+
+			if !tc.expectError {
+				reqHeader.On("Set", "X-Forwarded-For", tc.expectedHost).Return()
+			}
 
 			err := ff.HandleRequest(reqHeader)
 
 			if tc.expectError {
-				if err == nil {
+				assert.Error(t, err)
-					t.Fatalf("expected error but got none")
-				}
 			} else {
-				if err != nil {
+				assert.NoError(t, err)
-					t.Fatalf("unexpected error: %v", err)
+				reqHeader.AssertExpectations(t)
-				}
-
-				host := reqHeader.Value("X-Forwarded-For")
-				if host != tc.expectedHost {
-					t.Errorf("expected X-Forwarded-For header to be '%s', got '%s'", tc.expectedHost, host)
-				}
 			}
 		})
 	}
@@ -121,10 +119,7 @@ func TestNewForwardedFor(t *testing.T) {
 	for _, tc := range tests {
 		t.Run(tc.name, func(t *testing.T) {
 			ff := NewForwardedFor(tc.addr)
-
+			assert.Equal(t, tc.expectAddr.String(), ff.addr.String())
-			if ff.addr.String() != tc.expectAddr.String() {
-				t.Errorf("expected addr to be '%v', got '%v'", tc.expectAddr, ff.addr)
-			}
 		})
 	}
 }

internal/middleware/tunnelfingerprint_test.go

@@ -1,48 +1,46 @@
 package middleware
 
 import (
-	"errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
 	"testing"
 )
 
 type mockResponseHeader struct {
-	headers map[string]string
+	mock.Mock
 }
 
 func (m *mockResponseHeader) Value(key string) string {
-	return m.headers[key]
+	return m.Called(key).String(0)
 }
 
 func (m *mockResponseHeader) Set(key string, value string) {
-	m.headers[key] = value
+	m.Called(key, value)
 }
 
 func (m *mockResponseHeader) Remove(key string) {
-	delete(m.headers, key)
+	m.Called(key)
 }
 
 func (m *mockResponseHeader) Finalize() []byte {
-	return nil
+	return m.Called().Get(0).([]byte)
 }
 
 func TestTunnelFingerprintHandleResponse(t *testing.T) {
 	tests := []struct {
 		name     string
-		initialState map[string]string
 		expected map[string]string
 		body     []byte
 		wantErr  error
 	}{
 		{
 			name:     "Sets Server Header",
-			initialState: map[string]string{},
 			expected: map[string]string{"Server": "Tunnel Please"},
 			body:     []byte("Sample body"),
 			wantErr:  nil,
 		},
 		{
 			name:     "Overwrites Server Header",
-			initialState: map[string]string{"Server": "Old Value"},
 			expected: map[string]string{"Server": "Tunnel Please"},
 			body:     nil,
 			wantErr:  nil,
@@ -51,26 +49,21 @@ func TestTunnelFingerprintHandleResponse(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			mockHeader := &mockResponseHeader{headers: tt.initialState}
+			mockHeader := new(mockResponseHeader)
+			for k, v := range tt.expected {
+				mockHeader.On("Set", k, v).Return()
+			}
+
 			tunnelFingerprint := NewTunnelFingerprint()
 
 			err := tunnelFingerprint.HandleResponse(mockHeader, tt.body)
-			if !errors.Is(err, tt.wantErr) {
+			assert.ErrorIs(t, err, tt.wantErr)
-				t.Fatalf("unexpected error, got: %v, want: %v", err, tt.wantErr)
+			mockHeader.AssertExpectations(t)
-			}
-
-			for key, expectedValue := range tt.expected {
-				if val := mockHeader.Value(key); val != expectedValue {
-					t.Errorf("header[%q] = %q; want %q", key, val, expectedValue)
-				}
-			}
 		})
 	}
 }
 
 func TestNewTunnelFingerprint(t *testing.T) {
 	instance := NewTunnelFingerprint()
-	if instance == nil {
+	assert.NotNil(t, instance)
-		t.Errorf("NewTunnelFingerprint() = nil; want non-nil instance")
-	}
 }

internal/port/port_test.go

@@ -1,6 +1,7 @@
 package port
 
 import (
+	"github.com/stretchr/testify/assert"
 	"testing"
 )
 
@@ -20,8 +21,10 @@ func TestAddRange(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			pm := New()
 			err := pm.AddRange(tt.startPort, tt.endPort)
-			if (err != nil) != tt.wantErr {
+			if tt.wantErr {
-				t.Errorf("AddRange() error = %v, wantErr %v", err, tt.wantErr)
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
 			}
 		})
 	}
@@ -48,9 +51,8 @@ func TestUnassigned(t *testing.T) {
 				_ = pm.SetStatus(k, v)
 			}
 			got, gotOk := pm.Unassigned()
-			if got != tt.want || gotOk != tt.wantOk {
+			assert.Equal(t, tt.want, got)
-				t.Errorf("Unassigned() got = %v, want %v, gotOk = %v, wantOk %v", got, tt.want, gotOk, tt.wantOk)
+			assert.Equal(t, tt.wantOk, gotOk)
-			}
 		})
 	}
 }
@@ -70,12 +72,12 @@ func TestSetStatus(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			if err := pm.SetStatus(tt.port, tt.assigned); err != nil {
+			err := pm.SetStatus(tt.port, tt.assigned)
-				t.Errorf("SetStatus() error = %v", err)
+			assert.NoError(t, err)
-			}
+
-			if status, _ := pm.(*port).ports[tt.port]; status != tt.assigned {
+			status, ok := pm.(*port).ports[tt.port]
-				t.Errorf("SetStatus() failed, port %v has status %v, want %v", tt.port, status, tt.assigned)
+			assert.True(t, ok)
-			}
+			assert.Equal(t, tt.assigned, status)
 		})
 	}
 }
@@ -102,13 +104,10 @@ func TestClaim(t *testing.T) {
 			}
 
 			got := pm.Claim(tt.port)
-			if got != tt.want {
+			assert.Equal(t, tt.want, got)
-				t.Errorf("Claim() got = %v, want %v", got, tt.want)
-			}
 
-			if finalState := pm.(*port).ports[tt.port]; finalState != true {
+			finalState := pm.(*port).ports[tt.port]
-				t.Errorf("Claim() did not update port %v status to 'assigned'", tt.port)
+			assert.True(t, finalState)
-			}
 		})
 	}
 }

internal/random/random_test.go

@@ -1,20 +1,12 @@
 package random
 
 import (
-	"errors"
-	"fmt"
 	"io"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
-type brainrotReader struct {
-	err error
-}
-
-func (f *brainrotReader) Read(p []byte) (int, error) {
-	return 0, f.err
-}
-
 func TestRandom_String(t *testing.T) {
 	tests := []struct {
 		name    string
@@ -32,20 +24,18 @@ func TestRandom_String(t *testing.T) {
 			randomizer := New()
 
 			result, err := randomizer.String(tt.length)
-			if (err != nil) != tt.wantErr {
+			if tt.wantErr {
-				t.Errorf("String() error = %v, wantErr %v", err, tt.wantErr)
+				assert.Error(t, err)
-				return
+			} else {
-			}
+				assert.NoError(t, err)
-
+				assert.Len(t, result, tt.length)
-			if !tt.wantErr && len(result) != tt.length {
-				t.Errorf("String() length = %v, want %v", len(result), tt.length)
 			}
 		})
 	}
 }
 
 func TestRandomWithFailingReader_String(t *testing.T) {
-	errBrainrot := fmt.Errorf("you are not sigma enough")
+	errBrainrot := assert.AnError
 
 	tests := []struct {
 		name      string
@@ -54,7 +44,9 @@ func TestRandomWithFailingReader_String(t *testing.T) {
 	}{
 		{
 			name: "failing reader",
-			reader:    &brainrotReader{err: errBrainrot},
+			reader: func() io.Reader {
+				return &failingReader{err: errBrainrot}
+			}(),
 			expectErr: errBrainrot,
 		},
 	}
@@ -63,14 +55,16 @@ func TestRandomWithFailingReader_String(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			randomizer := &random{reader: tt.reader}
 			result, err := randomizer.String(20)
-			if !errors.Is(err, tt.expectErr) {
+			assert.ErrorIs(t, err, tt.expectErr)
-				t.Errorf("String() error = %v, wantErr %v", err, tt.expectErr)
+			assert.Empty(t, result)
-				return
-			}
-
-			if result != "" {
-				t.Errorf("String() result = %v, want an empty string due to error", result)
-			}
 		})
 	}
 }
+
+type failingReader struct {
+	err error
+}
+
+func (f *failingReader) Read(p []byte) (int, error) {
+	return 0, f.err
+}

internal/registry/registry_test.go

@@ -1,7 +1,9 @@
 package registry
 
 import (
-	"errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
 	"sync"
 	"testing"
 	"time"
@@ -15,47 +17,109 @@ import (
 	"golang.org/x/crypto/ssh"
 )
 
-type mockSession struct{ user string }
+type mockSession struct {
+	mock.Mock
+}
 
-func (m *mockSession) Lifecycle() lifecycle.Lifecycle { return &mockLifecycle{user: m.user} }
+func (m *mockSession) Lifecycle() lifecycle.Lifecycle {
-func (m *mockSession) Interaction() interaction.Interaction {
+	args := m.Called()
+	if args.Get(0) == nil {
 		return nil
+	}
+	return args.Get(0).(lifecycle.Lifecycle)
+}
+func (m *mockSession) Interaction() interaction.Interaction {
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(interaction.Interaction)
 }
 func (m *mockSession) Forwarder() forwarder.Forwarder {
+	args := m.Called()
+	if args.Get(0) == nil {
 		return nil
+	}
+	return args.Get(0).(forwarder.Forwarder)
 }
 func (m *mockSession) Slug() slug.Slug {
-	return &mockSlug{}
+	args := m.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(slug.Slug)
 }
 func (m *mockSession) Detail() *types.Detail {
+	args := m.Called()
+	if args.Get(0) == nil {
 		return nil
+	}
+	return args.Get(0).(*types.Detail)
 }
 
-type mockLifecycle struct{ user string }
+type mockLifecycle struct {
+	mock.Mock
+}
 
 func (ml *mockLifecycle) Channel() ssh.Channel {
+	args := ml.Called()
+	if args.Get(0) == nil {
 		return nil
+	}
+	return args.Get(0).(ssh.Channel)
 }
 
-func (ml *mockLifecycle) Connection() ssh.Conn                 { return nil }
+func (ml *mockLifecycle) Connection() ssh.Conn {
-func (ml *mockLifecycle) PortRegistry() port.Port              { return nil }
+	args := ml.Called()
-func (ml *mockLifecycle) SetChannel(channel ssh.Channel)       { _ = channel }
+	if args.Get(0) == nil {
-func (ml *mockLifecycle) SetStatus(status types.SessionStatus) { _ = status }
+		return nil
-func (ml *mockLifecycle) IsActive() bool                       { return false }
+	}
-func (ml *mockLifecycle) StartedAt() time.Time                 { return time.Time{} }
+	return args.Get(0).(ssh.Conn)
-func (ml *mockLifecycle) Close() error                         { return nil }
+}
-func (ml *mockLifecycle) User() string                         { return ml.user }
 
-type mockSlug struct{}
+func (ml *mockLifecycle) PortRegistry() port.Port {
+	args := ml.Called()
+	if args.Get(0) == nil {
+		return nil
+	}
+	return args.Get(0).(port.Port)
+}
 
-func (ms *mockSlug) Set(slug string) { _ = slug }
+func (ml *mockLifecycle) SetChannel(channel ssh.Channel)       { ml.Called(channel) }
-func (ms *mockSlug) String() string  { return "" }
+func (ml *mockLifecycle) SetStatus(status types.SessionStatus) { ml.Called(status) }
+func (ml *mockLifecycle) IsActive() bool                       { return ml.Called().Bool(0) }
+func (ml *mockLifecycle) StartedAt() time.Time                 { return ml.Called().Get(0).(time.Time) }
+func (ml *mockLifecycle) Close() error                         { return ml.Called().Error(0) }
+func (ml *mockLifecycle) User() string                         { return ml.Called().String(0) }
+
+type mockSlug struct {
+	mock.Mock
+}
+
+func (ms *mockSlug) Set(slug string) { ms.Called(slug) }
+func (ms *mockSlug) String() string  { return ms.Called().String(0) }
+
+func createMockSession(user ...string) *mockSession {
+	u := "user1"
+	if len(user) > 0 {
+		u = user[0]
+	}
+	m := new(mockSession)
+	ml := new(mockLifecycle)
+	ml.On("User").Return(u).Maybe()
+	m.On("Lifecycle").Return(ml).Maybe()
+	ms := new(mockSlug)
+	ms.On("Set", mock.Anything).Maybe()
+	m.On("Slug").Return(ms).Maybe()
+	m.On("Interaction").Return(nil).Maybe()
+	m.On("Forwarder").Return(nil).Maybe()
+	m.On("Detail").Return(nil).Maybe()
+	return m
+}
 
 func TestNewRegistry(t *testing.T) {
 	r := NewRegistry()
-	if r == nil {
+	require.NotNil(t, r)
-		t.Fatal("NewRegistry returned nil")
-	}
 }
 
 func TestRegistry_Get(t *testing.T) {
@@ -71,7 +135,7 @@ func TestRegistry_Get(t *testing.T) {
 			setupFunc: func(r *registry) {
 				user := "user1"
 				key := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: user}
+				session := createMockSession(user)
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -113,13 +177,8 @@ func TestRegistry_Get(t *testing.T) {
 
 			session, err := r.Get(tt.key)
 
-			if !errors.Is(err, tt.wantErr) {
+			assert.ErrorIs(t, err, tt.wantErr)
-				t.Fatalf("expected error %v, got %v", tt.wantErr, err)
+			assert.Equal(t, tt.wantResult, session != nil)
-			}
-
-			if (session != nil) != tt.wantResult {
-				t.Fatalf("expected session existence to be %v, got %v", tt.wantResult, session != nil)
-			}
 		})
 	}
 }
@@ -138,7 +197,7 @@ func TestRegistry_GetWithUser(t *testing.T) {
 			setupFunc: func(r *registry) {
 				user := "user1"
 				key := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: user}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -183,13 +242,8 @@ func TestRegistry_GetWithUser(t *testing.T) {
 
 			session, err := r.GetWithUser(tt.user, tt.key)
 
-			if !errors.Is(err, tt.wantErr) {
+			assert.ErrorIs(t, err, tt.wantErr)
-				t.Fatalf("expected error %v, got %v", tt.wantErr, err)
+			assert.Equal(t, tt.wantResult, session != nil)
-			}
-
-			if (session != nil) != tt.wantResult {
-				t.Fatalf("expected session existence to be %v, got %v", tt.wantResult, session != nil)
-			}
 		})
 	}
 }
@@ -207,7 +261,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession("user1")
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -226,7 +280,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -247,7 +301,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "ping", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -266,7 +320,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test2-", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -285,7 +339,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test4", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -304,7 +358,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test4", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -323,7 +377,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
 				newKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeTCP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -342,7 +396,7 @@ func TestRegistry_Update(t *testing.T) {
 			setupFunc: func(r *registry) (types.SessionKey, types.SessionKey) {
 				oldKey := types.SessionKey{Id: "test2", Type: types.TunnelTypeTCP}
 				newKey := oldKey
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				defer r.mu.Unlock()
@@ -371,19 +425,15 @@ func TestRegistry_Update(t *testing.T) {
 			oldKey, newKey := tt.setupFunc(r)
 
 			err := r.Update(tt.user, oldKey, newKey)
-			if !errors.Is(err, tt.wantErr) {
+			assert.ErrorIs(t, err, tt.wantErr)
-				t.Fatalf("expected error %v, got %v", tt.wantErr, err)
-			}
 
 			if err == nil {
 				r.mu.RLock()
 				defer r.mu.RUnlock()
-				if _, ok := r.byUser[tt.user][newKey]; !ok {
+				_, ok := r.byUser[tt.user][newKey]
-					t.Errorf("newKey not found in registry")
+				assert.True(t, ok, "newKey not found in registry")
-				}
+				_, ok = r.byUser[tt.user][oldKey]
-				if _, ok := r.byUser[tt.user][oldKey]; ok {
+				assert.False(t, ok, "oldKey still exists in registry")
-					t.Errorf("oldKey still exists in registry")
-				}
 			}
 		})
 	}
@@ -410,7 +460,7 @@ func TestRegistry_Register(t *testing.T) {
 			user: "user1",
 			setupFunc: func(r *registry) Key {
 				key := types.SessionKey{Id: "test1", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 
 				r.mu.Lock()
 				r.byUser["user1"] = map[Key]Session{key: session}
@@ -426,7 +476,7 @@ func TestRegistry_Register(t *testing.T) {
 			user: "user1",
 			setupFunc: func(r *registry) Key {
 				firstKey := types.SessionKey{Id: "first", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: "user1"}
+				session := createMockSession()
 				r.mu.Lock()
 				r.byUser["user1"] = map[Key]Session{firstKey: session}
 				r.slugIndex[firstKey] = "user1"
@@ -450,22 +500,16 @@ func TestRegistry_Register(t *testing.T) {
 			}
 
 			key := tt.setupFunc(r)
-			session := &mockSession{user: tt.user}
+			session := createMockSession()
 
 			ok := r.Register(key, session)
-			if ok != tt.wantOK {
+			assert.Equal(t, tt.wantOK, ok)
-				t.Fatalf("expected success %v, got %v", tt.wantOK, ok)
-			}
 
 			if ok {
 				r.mu.RLock()
 				defer r.mu.RUnlock()
-				if r.byUser[tt.user][key] != session {
+				assert.Equal(t, session, r.byUser[tt.user][key], "session not stored in byUser")
-					t.Errorf("session not stored in byUser")
+				assert.Equal(t, tt.user, r.slugIndex[key], "slugIndex not updated")
-				}
-				if r.slugIndex[key] != tt.user {
-					t.Errorf("slugIndex not updated")
-				}
 			}
 		})
 	}
@@ -492,8 +536,8 @@ func TestRegistry_GetAllSessionFromUser(t *testing.T) {
 				key2 := types.SessionKey{Id: "b", Type: types.TunnelTypeTCP}
 				r.mu.Lock()
 				r.byUser[user] = map[Key]Session{
-					key1: &mockSession{user: user},
+					key1: createMockSession(),
-					key2: &mockSession{user: user},
+					key2: createMockSession(),
 				}
 				r.mu.Unlock()
 				return user
@@ -511,9 +555,7 @@ func TestRegistry_GetAllSessionFromUser(t *testing.T) {
 			}
 			user := tt.setupFunc(r)
 			sessions := r.GetAllSessionFromUser(user)
-			if len(sessions) != tt.expectN {
+			assert.Len(t, sessions, tt.expectN)
-				t.Errorf("expected %d sessions, got %d", tt.expectN, len(sessions))
-			}
 		})
 	}
 }
@@ -530,7 +572,7 @@ func TestRegistry_Remove(t *testing.T) {
 			setupFunc: func(r *registry) (string, types.SessionKey) {
 				user := "user1"
 				key := types.SessionKey{Id: "a", Type: types.TunnelTypeHTTP}
-				session := &mockSession{user: user}
+				session := createMockSession()
 				r.mu.Lock()
 				r.byUser[user] = map[Key]Session{key: session}
 				r.slugIndex[key] = user
@@ -538,15 +580,12 @@ func TestRegistry_Remove(t *testing.T) {
 				return user, key
 			},
 			verify: func(t *testing.T, r *registry, user string, key types.SessionKey) {
-				if _, ok := r.byUser[user][key]; ok {
+				_, ok := r.byUser[user][key]
-					t.Errorf("expected key to be removed from byUser")
+				assert.False(t, ok, "expected key to be removed from byUser")
-				}
+				_, ok = r.slugIndex[key]
-				if _, ok := r.slugIndex[key]; ok {
+				assert.False(t, ok, "expected key to be removed from slugIndex")
-					t.Errorf("expected key to be removed from slugIndex")
+				_, ok = r.byUser[user]
-				}
+				assert.False(t, ok, "expected user to be removed from byUser map")
-				if _, ok := r.byUser[user]; ok {
-					t.Errorf("expected user to be removed from byUser map")
-				}
 			},
 		},
 		{

internal/transport/httphandler_test.go

@@ -144,19 +144,6 @@ func (m *MockLifecycle) Close() error {
 	return args.Error(0)
 }
 
-type MockSSHConn struct {
-	ssh.Conn
-	mock.Mock
-}
-
-func (m *MockSSHConn) OpenChannel(name string, data []byte) (ssh.Channel, <-chan *ssh.Request, error) {
-	args := m.Called(name, data)
-	if args.Get(0) == nil {
-		return nil, args.Get(1).(<-chan *ssh.Request), args.Error(2)
-	}
-	return args.Get(0).(ssh.Channel), args.Get(1).(<-chan *ssh.Request), args.Error(2)
-}
-
 type MockSSHChannel struct {
 	ssh.Channel
 	mock.Mock

session/forwarder/forwarder.go

@@ -73,11 +73,7 @@ func (f *forwarder) OpenForwardedChannel(ctx context.Context, origin net.Addr) (
 		case resultChan <- channelResult{channel, reqs, err}:
 		case <-ctx.Done():
 			if channel != nil {
-				err = channel.Close()
+				_ = channel.Close()
-				if err != nil {
-					log.Printf("Failed to close unused channel: %v", err)
-					return
-				}
 				go ssh.DiscardRequests(reqs)
 			}
 		}
@@ -116,10 +112,7 @@ func (f *forwarder) copyAndClose(dst io.Writer, src io.Reader, direction string)
 
 func (f *forwarder) HandleConnection(dst io.ReadWriter, src ssh.Channel) {
 	defer func() {
-		_, err := io.Copy(io.Discard, src)
+		_, _ = io.Copy(io.Discard, src)
-		if err != nil {
-			log.Printf("Failed to discard connection: %v", err)
-		}
 	}()
 
 	var wg sync.WaitGroup

session/lifecycle/lifecycle_test.go

@@ -1,6 +1,7 @@
 package lifecycle
 
 import (
+	"context"
 	"errors"
 	"io"
 	"net"
@@ -65,10 +66,10 @@ func (m *MockForwarder) Listener() net.Listener {
 	return args.Get(0).(net.Listener)
 }
 
-func (m *MockForwarder) OpenForwardedChannel(payload []byte) (ssh.Channel, <-chan *ssh.Request, error) {
+func (m *MockForwarder) OpenForwardedChannel(ctx context.Context, origin net.Addr) (ssh.Channel, <-chan *ssh.Request, error) {
-	args := m.Called(payload)
+	args := m.Called(ctx, origin)
 	if args.Get(0) == nil {
-		return nil, args.Get(1).(<-chan *ssh.Request), args.Error(2)
+		return nil, nil, args.Error(2)
 	}
 	return args.Get(0).(ssh.Channel), args.Get(1).(<-chan *ssh.Request), args.Error(2)
 }
@@ -208,7 +209,8 @@ func TestLifecycle_SetStatus(t *testing.T) {
 
 	mockLifecycle := New(mockSSHConn, mockForwarder, mockSlug, mockPort, mockSessionRegistry, "mas-fuad")
 
-	assert.NotNil(t, mockLifecycle.StartedAt())
+	mockLifecycle.SetStatus(types.SessionStatusRUNNING)
+	assert.True(t, mockLifecycle.IsActive())
 }
 
 func TestLifecycle_IsActive(t *testing.T) {