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test-integers.cpp
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201 lines (157 loc) · 4.18 KB
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#include "Rversion.h"
#include "cpp11/doubles.hpp"
#include "cpp11/integers.hpp"
#include "cpp11/strings.hpp"
#include <testthat.h>
context("integers-C++") {
test_that("as_integers(doubles)") {
// TYPEOF(x) == INTSXP
cpp11::writable::doubles y;
y.push_back(10.00);
cpp11::writable::integers i(cpp11::as_integers(y));
expect_true(i[0] == 10);
expect_true(TYPEOF(i) == INTSXP);
cpp11::writable::doubles x;
x.push_back(10.01);
expect_error(cpp11::as_integers(x));
cpp11::writable::strings e;
e.push_back("a");
e.push_back("b");
expect_error(cpp11::as_integers(e));
cpp11::writable::doubles z;
z.push_back(10);
z.push_back(1000);
z.push_back(100000);
z.push_back(100000.00);
cpp11::writable::integers t((cpp11::as_integers(z)));
expect_true(t[0] == 10);
expect_true(t[1] == 1000);
expect_true(t[2] == 100000);
expect_true(t[3] == 100000);
expect_true(TYPEOF(t) == INTSXP);
}
test_that("integers.push_back()") {
cpp11::writable::integers x;
x.push_back(1);
x.push_back(2);
expect_true(x.size() == 2);
expect_true(x[0] == 1);
expect_true(x[1] == 2);
}
test_that("integers.resize()") {
cpp11::writable::integers x;
x.resize(2);
x[0] = 1;
x[1] = 2;
expect_true(x.size() == 2);
expect_true(x[0] == 1);
expect_true(x[1] == 2);
}
test_that("integers.at()") {
cpp11::writable::integers x;
expect_error(x.at(-1));
expect_error(x.at(0));
x.push_back(1);
expect_true(x.at(0) == 1);
expect_error(x.at(1));
}
test_that("integers.pop_back()") {
cpp11::writable::integers x;
x.push_back(1);
x.push_back(2);
x.pop_back();
expect_true(x.size() == 1);
expect_true(x[0] == 1);
expect_error(x.at(1));
}
test_that("integers.insert()") {
cpp11::writable::integers x;
x.insert(0, 1);
x.insert(0, 2);
x.insert(1, 3);
expect_true(x.size() == 3);
expect_true(x[0] == 2);
expect_true(x[1] == 3);
expect_true(x[2] == 1);
}
test_that("integers.erase()") {
cpp11::writable::integers x;
x.push_back(1);
x.push_back(2);
x.push_back(3);
x.push_back(4);
x.push_back(5);
expect_true(x.size() == 5);
x.erase(0);
expect_true(x.size() == 4);
expect_true(x[0] == 2);
expect_true(x[1] == 3);
expect_true(x[2] == 4);
expect_true(x[3] == 5);
x.erase(2);
expect_true(x.size() == 3);
expect_true(x[0] == 2);
expect_true(x[1] == 3);
expect_true(x[2] == 5);
}
test_that("integers.iterator* = ") {
cpp11::writable::integers x;
x.push_back(1);
x.push_back(2);
x.push_back(3);
auto it = x.begin() + 1;
*it = 3;
++it;
*it = 4;
expect_true(x.size() == 3);
expect_true(x[0] == 1);
expect_true(x[1] == 3);
expect_true(x[2] == 4);
}
test_that("writable::integers(SEXP)") {
SEXP x = PROTECT(Rf_allocVector(INTSXP, 5));
INTEGER(x)[0] = 1;
INTEGER(x)[1] = 2;
INTEGER(x)[2] = 3;
INTEGER(x)[3] = 4;
INTEGER(x)[4] = 5;
cpp11::writable::integers y(x);
y[0] = -1;
expect_true(x != y.data());
expect_true(INTEGER(x)[0] == 1);
expect_true(y[0] == -1);
cpp11::writable::integers z(y);
z[0] = -2;
expect_true(z.data() != y.data());
expect_true(INTEGER(x)[0] == 1);
expect_true(y[0] == -1);
expect_true(z[0] == -2);
UNPROTECT(1);
}
#if defined(__APPLE__) && defined(R_VERSION) && R_VERSION >= R_Version(3, 5, 0)
test_that("writable::integers(ALTREP_SEXP)") {
SEXP x = PROTECT(R_compact_intrange(1, 5));
// Need to find (or create) an altrep class that implements duplicate.
cpp11::writable::integers y(x);
y[0] = -1;
expect_true(x != y.data());
expect_true(INTEGER_ELT(x, 0) == 1);
expect_true(y[0] == -1);
cpp11::writable::integers z(y);
z[0] = -2;
expect_true(z.data() != y.data());
expect_true(INTEGER_ELT(x, 0) == 1);
expect_true(y[0] == -1);
expect_true(z[0] == -2);
z.push_back(6);
expect_true(z[5] == 6);
UNPROTECT(1);
}
#endif
test_that("is_na(integer)") {
int x = 0;
expect_true(!cpp11::is_na(x));
int y = NA_INTEGER;
expect_true(cpp11::is_na(y));
}
}