diff --git a/cpp11test/R/cpp11.R b/cpp11test/R/cpp11.R
index 50aa4e5f..2ef90804 100644
--- a/cpp11test/R/cpp11.R
+++ b/cpp11test/R/cpp11.R
@@ -160,57 +160,28 @@ notroxcpp1_ <- function(x) {
   .Call(`_cpp11test_notroxcpp1_`, x)
 }
 
-#' @title Roxygenise C++ function II
-#' @param x numeric value
-#' @description Dummy function to test roxygen2. It adds 2.0 to a double.
-#' @export
-#' @examples roxcpp2_(1.0)
 roxcpp2_ <- function(x) {
-	.Call(`_cpp11test_roxcpp2_`, x)
+  .Call(`_cpp11test_roxcpp2_`, x)
 }
 
-#' @title Roxygenise C++ function III
-#' @param x numeric value
-#' @description Dummy function to test roxygen2. It adds 3.0 to a double.
-#' @export
-#' @examples roxcpp3_(1.0)
 roxcpp3_ <- function(x) {
-	.Call(`_cpp11test_roxcpp3_`, x)
+  .Call(`_cpp11test_roxcpp3_`, x)
 }
 
-#' @title Roxygenise C++ function IV
-#' @param x numeric value
-#' @description Dummy function to test roxygen2. It adds 4.0 to a double.
-#' @export
-#' @examples roxcpp4_(1.0)
 roxcpp4_ <- function(x) {
-	.Call(`_cpp11test_roxcpp4_`, x)
+  .Call(`_cpp11test_roxcpp4_`, x)
 }
 
-#' @title Roxygenise C++ function V
-#' @param x numeric value
-#' @description Dummy function to test roxygen2. It adds 5.0 to a double.
-#' @export
-#' @examples roxcpp5_(1.0)
 roxcpp5_ <- function(x) {
-	.Call(`_cpp11test_roxcpp5_`, x)
+  .Call(`_cpp11test_roxcpp5_`, x)
 }
 
 notroxcpp6_ <- function(x) {
   .Call(`_cpp11test_notroxcpp6_`, x)
 }
 
-#' @title Roxygenise C++ function VII
-#' @param x numeric value
-#' @description Dummy function to test roxygen2. It adds 7.0 to a double.
-#' @export
-#' @examples
-#' my_fun <- function(x) {
-#'   roxcpp7_(x)
-#' }
-#' @seealso \code{\link{roxcpp1_}}
 roxcpp7_ <- function(x) {
-	.Call(`_cpp11test_roxcpp7_`, x)
+  .Call(`_cpp11test_roxcpp7_`, x)
 }
 
 cpp11_safe_ <- function(x_sxp) {
diff --git a/cpp11test/src/cpp11.cpp b/cpp11test/src/cpp11.cpp
index 71a5d443..9c58e190 100644
--- a/cpp11test/src/cpp11.cpp
+++ b/cpp11test/src/cpp11.cpp
@@ -603,6 +603,8 @@ static const R_CallMethodDef CallEntries[] = {
     {"_cpp11test_my_warning_n1",            (DL_FUNC) &_cpp11test_my_warning_n1,            1},
     {"_cpp11test_my_warning_n1fmt",         (DL_FUNC) &_cpp11test_my_warning_n1fmt,         1},
     {"_cpp11test_my_warning_n2fmt",         (DL_FUNC) &_cpp11test_my_warning_n2fmt,         2},
+    {"_cpp11test_notroxcpp1_",              (DL_FUNC) &_cpp11test_notroxcpp1_,              1},
+    {"_cpp11test_notroxcpp6_",              (DL_FUNC) &_cpp11test_notroxcpp6_,              1},
     {"_cpp11test_nullable_extptr_1",        (DL_FUNC) &_cpp11test_nullable_extptr_1,        0},
     {"_cpp11test_nullable_extptr_2",        (DL_FUNC) &_cpp11test_nullable_extptr_2,        0},
     {"_cpp11test_protect_many_",            (DL_FUNC) &_cpp11test_protect_many_,            1},
diff --git a/cpp11test/src/test-doubles.cpp b/cpp11test/src/test-doubles.cpp
index 837103ee..9f5a5cfa 100644
--- a/cpp11test/src/test-doubles.cpp
+++ b/cpp11test/src/test-doubles.cpp
@@ -455,22 +455,6 @@ context("doubles-C++") {
     expect_true(!cpp11::is_na(na2[1]));
   }
 
-  test_that("as_doubles(logicals)") {
-    cpp11::writable::logicals y;
-
-    for (int i = 0; i < 4; i++) {
-      y.push_back(i % 2 == 0);
-    }
-
-    cpp11::doubles i(cpp11::as_doubles(y));
-
-    expect_true(i[0] == 1.0);
-    expect_true(i[1] == 0.0);
-    expect_true(i[2] == 1.0);
-    expect_true(i[3] == 0.0);
-    expect_true(cpp11::detail::r_typeof(i) == REALSXP);
-  }
-
   test_that("doubles operator[] and at") {
     cpp11::doubles x(Rf_allocVector(REALSXP, 2));
     REAL(x)[0] = 1;
diff --git a/cpp11test/src/test-integers.cpp b/cpp11test/src/test-integers.cpp
index 8caabdb6..6b144d75 100644
--- a/cpp11test/src/test-integers.cpp
+++ b/cpp11test/src/test-integers.cpp
@@ -44,22 +44,6 @@ context("integers-C++") {
     expect_true(!cpp11::is_na(na2[1]));
   }
 
-  test_that("as_integers(logicals)") {
-    cpp11::writable::logicals y;
-
-    for (int i = 0; i < 4; i++) {
-      y.push_back(i % 2 == 0);
-    }
-
-    cpp11::integers i(cpp11::as_integers(y));
-
-    expect_true(i[0] == 1);
-    expect_true(i[1] == 0);
-    expect_true(i[2] == 1);
-    expect_true(i[3] == 0);
-    expect_true(cpp11::detail::r_typeof(i) == INTSXP);
-  }
-
   test_that("integers.push_back()") {
     cpp11::writable::integers x;
     x.push_back(1);
diff --git a/cpp11test/tests/testthat/test-external-pointer.R b/cpp11test/tests/testthat/test-external-pointer.R
deleted file mode 100644
index b82c6d80..00000000
--- a/cpp11test/tests/testthat/test-external-pointer.R
+++ /dev/null
@@ -1,11 +0,0 @@
-# Pacha: test that nullable external pointer is consistent (#312)
-test_that("nullable external pointer is consistent", {
-
-  len <- 1e5
-  set.seed(42)
-  x <- rnorm(len)
-  sum_base <- sum(x)
-
-  expect_equal(nullable_extptr_1(), NULL)
-  expect_equal(nullable_extptr_2(), NULL)
-})