client: Fix tests for latest golang

client/client_test.go

@@ -422,7 +422,7 @@ func TestHTTPClusterClientDo(t *testing.T) {
 			tt.ctx = context.Background()
 		}
 		resp, _, err := tt.client.Do(tt.ctx, nil)
-		if !reflect.DeepEqual(tt.wantErr, err) {
+		if (tt.wantErr == nil && tt.wantErr != err) || (tt.wantErr != nil && tt.wantErr.Error() != err.Error()) {
 			t.Errorf("#%d: got err=%v, want=%v", i, err, tt.wantErr)
 			continue
 		}
@@ -726,7 +726,7 @@ func TestRedirectFollowingHTTPClient(t *testing.T) {
 	for i, tt := range tests {
 		client := &redirectFollowingHTTPClient{client: tt.client, checkRedirect: tt.checkRedirect}
 		resp, _, err := client.Do(context.Background(), nil)
-		if !reflect.DeepEqual(tt.wantErr, err) {
+		if (tt.wantErr == nil && tt.wantErr != err) || (tt.wantErr != nil && tt.wantErr.Error() != err.Error()) {
 			t.Errorf("#%d: got err=%v, want=%v", i, err, tt.wantErr)
 			continue
 		}

client/keys_test.go

@@ -994,12 +994,13 @@ func TestHTTPKeysAPIWatcherAction(t *testing.T) {
 	}
 
 	for i, tt := range tests {
+		testError := errors.New("fail!")
 		kAPI := &httpKeysAPI{
-			client: &staticHTTPClient{err: errors.New("fail!")},
+			client: &staticHTTPClient{err: testError},
 		}
 
 		want := &httpWatcher{
-			client:   &staticHTTPClient{err: errors.New("fail!")},
+			client:   &staticHTTPClient{err: testError},
 			nextWait: tt.want,
 		}