83 lines
1.7 KiB
C++
83 lines
1.7 KiB
C++
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#define CATCH_CONFIG_RUNNER
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#include "catch.hpp"
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#include "optional.hpp"
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using namespace mapbox;
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struct dummy {
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dummy(int _m_1, int _m_2) : m_1(_m_1), m_2(_m_2) {}
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int m_1;
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int m_2;
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};
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int main (int argc, char* const argv[])
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{
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int result = Catch::Session().run(argc, argv);
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if (!result) printf("\x1b[1;32m ✓ \x1b[0m\n");
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return result;
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}
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TEST_CASE( "optional can be instantiated with a POD type", "[optiona]" ) {
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mapbox::util::optional<double> dbl_opt;
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REQUIRE(!dbl_opt);
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dbl_opt = 3.1415;
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REQUIRE(dbl_opt);
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REQUIRE(dbl_opt.get() == 3.1415);
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REQUIRE(*dbl_opt == 3.1415);
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}
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TEST_CASE( "copy c'tor", "[optiona]" ) {
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mapbox::util::optional<double> dbl_opt;
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REQUIRE(!dbl_opt);
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dbl_opt = 3.1415;
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REQUIRE(dbl_opt);
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mapbox::util::optional<double> other = dbl_opt;
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REQUIRE(other.get() == 3.1415);
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REQUIRE(*other == 3.1415);
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}
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TEST_CASE( "const operator*, const get()", "[optiona]" ) {
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mapbox::util::optional<double> dbl_opt = 3.1415;
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REQUIRE(dbl_opt);
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const double pi1 = dbl_opt.get();
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const double pi2 = *dbl_opt;
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REQUIRE(pi1 == 3.1415);
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REQUIRE(pi2 == 3.1415);
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}
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TEST_CASE( "emplace initialization, reset", "[optional]" ) {
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mapbox::util::optional<dummy> dummy_opt;
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REQUIRE(!dummy_opt);
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// rvalues, baby!
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dummy_opt.emplace(1, 2);
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REQUIRE(dummy_opt);
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REQUIRE(dummy_opt.get().m_1 == 1);
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REQUIRE((*dummy_opt).m_2 == 2);
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dummy_opt.reset();
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REQUIRE(!dummy_opt);
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}
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TEST_CASE( "assignment", "[optional]") {
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mapbox::util::optional<int> a;
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mapbox::util::optional<int> b;
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a = 1; b = 3;
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REQUIRE(a.get() == 1);
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REQUIRE(b.get() == 3);
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b = a;
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REQUIRE(a.get() == b.get());
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REQUIRE(b.get() == 1);
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}
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