Squashed 'third_party/optional/' content from commit 1baad184f
Change-Id: I9b2473a84dcf6d9892f1f7a9fd21b340796b6ff5
git-subtree-dir: third_party/optional
git-subtree-split: 1baad184f022a3a7502db094a984a86adedf9626
diff --git a/tests/constructors.cpp b/tests/constructors.cpp
new file mode 100644
index 0000000..fc87a97
--- /dev/null
+++ b/tests/constructors.cpp
@@ -0,0 +1,62 @@
+#include "catch.hpp"
+#include "optional.hpp"
+#include <vector>
+
+struct foo {
+ foo() = default;
+ foo(foo&) = delete;
+ foo(foo&&) {};
+};
+
+TEST_CASE("Constructors", "[constructors]") {
+ tl::optional<int> o1;
+ REQUIRE(!o1);
+
+ tl::optional<int> o2 = tl::nullopt;
+ REQUIRE(!o2);
+
+ tl::optional<int> o3 = 42;
+ REQUIRE(*o3 == 42);
+
+ tl::optional<int> o4 = o3;
+ REQUIRE(*o4 == 42);
+
+ tl::optional<int> o5 = o1;
+ REQUIRE(!o5);
+
+ tl::optional<int> o6 = std::move(o3);
+ REQUIRE(*o6 == 42);
+
+ tl::optional<short> o7 = 42;
+ REQUIRE(*o7 == 42);
+
+ tl::optional<int> o8 = o7;
+ REQUIRE(*o8 == 42);
+
+ tl::optional<int> o9 = std::move(o7);
+ REQUIRE(*o9 == 42);
+
+ {
+ tl::optional<int &> o;
+ REQUIRE(!o);
+
+ tl::optional<int &> oo = o;
+ REQUIRE(!oo);
+ }
+
+ {
+ auto i = 42;
+ tl::optional<int &> o = i;
+ REQUIRE(o);
+ REQUIRE(*o == 42);
+
+ tl::optional<int &> oo = o;
+ REQUIRE(oo);
+ REQUIRE(*oo == 42);
+ }
+
+ std::vector<foo> v;
+ v.emplace_back();
+ tl::optional<std::vector<foo>> ov = std::move(v);
+ REQUIRE(ov->size() == 1);
+}