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more testing for category axis

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Hans Dembinski 2019-10-22 19:23:04 +01:00 committed by GitHub
parent 84ce3caad4
commit 758c38e566
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1 changed files with 51 additions and 11 deletions
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62
test/axis_category_test.cpp
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@ -8,6 +8,7 @@
#include <boost/core/lightweight_test_trait.hpp> #include <boost/core/lightweight_test_trait.hpp>
#include <boost/histogram/axis/category.hpp> #include <boost/histogram/axis/category.hpp>
#include <boost/histogram/axis/ostream.hpp> #include <boost/histogram/axis/ostream.hpp>
#include <boost/histogram/axis/traits.hpp>
#include <boost/histogram/detail/cat.hpp> #include <boost/histogram/detail/cat.hpp>
#include <limits> #include <limits>
#include <sstream> #include <sstream>
@ -29,6 +30,24 @@ int main() {
BOOST_TEST_THROWS((axis::category<>(empty)), std::invalid_argument); BOOST_TEST_THROWS((axis::category<>(empty)), std::invalid_argument);
} }
// value should return copy for arithmetic types and const reference otherwise
{
enum class Foo { foo };
BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<std::string>>,
std::string);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<std::string>>().value(0)),
const std::string&);
BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<const char*>>,
const char*);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<const char*>>().value(0)),
const char*);
BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<Foo>>, Foo);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<Foo>>().value(0)), Foo);
BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<int>>, int);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<int>>().value(0)), int);
}
// axis::category // axis::category
{ {
std::string A("A"), B("B"), C("C"), other; std::string A("A"), B("B"), C("C"), other;
@ -50,30 +69,51 @@ int main() {
BOOST_TEST_EQ(detail::cat(a), BOOST_TEST_EQ(detail::cat(a),
"category(\"A\", \"B\", \"C\", metadata=\"bar\", options=overflow)"); "category(\"A\", \"B\", \"C\", metadata=\"bar\", options=overflow)");
}
axis::category<std::string> b; // category<int, axis::null_type>: copy, move
{
using C = axis::category<int, axis::null_type>;
C a({1, 2, 3});
C a2(a);
BOOST_TEST_EQ(a2, a);
C b;
BOOST_TEST_NE(a, b); BOOST_TEST_NE(a, b);
b = a; b = a;
BOOST_TEST_EQ(a, b); BOOST_TEST_EQ(a, b);
b = axis::category<std::string>{{B, A, C}}; b = C{{2, 1, 3}};
BOOST_TEST_NE(a, b); BOOST_TEST_NE(a, b);
b = a; b = a;
BOOST_TEST_EQ(a, b); BOOST_TEST_EQ(a, b);
axis::category<std::string> c = std::move(b); C c = std::move(b);
BOOST_TEST_EQ(c, a); BOOST_TEST_EQ(c, a);
axis::category<std::string> d; C d;
BOOST_TEST_NE(c, d); BOOST_TEST_NE(c, d);
d = std::move(c); d = std::move(c);
BOOST_TEST_EQ(d, a); BOOST_TEST_EQ(d, a);
}
enum class Foo { foo }; // category<std::string>: copy, move
{
using C = axis::category<std::string>;
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<std::string>>().value(0)), C a({"A", "B", "C"}, "foo");
const std::string&); C a2(a);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<const char*>>().value(0)), BOOST_TEST_EQ(a2, a);
const char*); C b;
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<Foo>>().value(0)), Foo); BOOST_TEST_NE(a, b);
BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<int>>().value(0)), int); b = a;
BOOST_TEST_EQ(a, b);
b = C{{"B", "A", "C"}};
BOOST_TEST_NE(a, b);
b = a;
BOOST_TEST_EQ(a, b);
C c = std::move(b);
BOOST_TEST_EQ(c, a);
C d;
BOOST_TEST_NE(c, d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
} }
// axis::category with growth // axis::category with growth