+
+TEST(Range, ArrayConstructors) {
+ auto charArray = std::array<char, 4>{{'t', 'e', 's', 't'}};
+ auto constCharArray = std::array<char, 6>{{'f', 'o', 'o', 'b', 'a', 'r'}};
+ auto emptyArray = std::array<char, 0>{};
+
+ auto sp1 = StringPiece{charArray};
+ EXPECT_EQ(4, sp1.size());
+ EXPECT_EQ(charArray.data(), sp1.data());
+
+ auto sp2 = StringPiece(constCharArray);
+ EXPECT_EQ(6, sp2.size());
+ EXPECT_EQ(constCharArray.data(), sp2.data());
+
+ auto msp = MutableStringPiece(charArray);
+ EXPECT_EQ(4, msp.size());
+ EXPECT_EQ(charArray.data(), msp.data());
+
+ auto esp = StringPiece(emptyArray);
+ EXPECT_EQ(0, esp.size());
+ EXPECT_EQ(nullptr, esp.data());
+
+ auto emsp = MutableStringPiece(emptyArray);
+ EXPECT_EQ(0, emsp.size());
+ EXPECT_EQ(nullptr, emsp.data());
+
+ static constexpr std::array<int, 4> numArray = {{3, 17, 1, 9}};
+ constexpr auto numRange = Range<const int*>{numArray};
+ EXPECT_EQ(17, numRange[1]);
+
+ static constexpr std::array<int, 0> emptyNumArray{};
+ constexpr auto emptyNumRange = Range<const int*>{emptyNumArray};
+ EXPECT_EQ(0, emptyNumRange.size());
+}
+
+TEST(Range, ConstexprAccessors) {
+ constexpr StringPiece piece = range("hello");
+ static_assert(piece.size() == 6u, "");
+ static_assert(piece.end() - piece.begin() == 6u, "");
+ static_assert(piece.data() == piece.begin(), "");
+ static_assert(piece.start() == piece.begin(), "");
+ static_assert(piece.cbegin() == piece.begin(), "");
+ static_assert(piece.cend() == piece.end(), "");
+ static_assert(*piece.begin() == 'h', "");
+ static_assert(*(piece.end() - 1) == '\0', "");
+}
+
+TEST(Range, LiteralSuffix) {
+ constexpr auto literalPiece = "hello"_sp;
+ constexpr StringPiece piece = "hello";
+ EXPECT_EQ(literalPiece, piece);
+ constexpr auto literalPiece8 = u8"hello"_sp;
+ constexpr Range<char const*> piece8 = u8"hello";
+ EXPECT_EQ(literalPiece8, piece8);
+ constexpr auto literalPiece16 = u"hello"_sp;
+ constexpr Range<char16_t const*> piece16{u"hello", 5};
+ EXPECT_EQ(literalPiece16, piece16);
+ constexpr auto literalPiece32 = U"hello"_sp;
+ constexpr Range<char32_t const*> piece32{U"hello", 5};
+ EXPECT_EQ(literalPiece32, piece32);
+ constexpr auto literalPieceW = L"hello"_sp;
+ constexpr Range<wchar_t const*> pieceW{L"hello", 5};
+ EXPECT_EQ(literalPieceW, pieceW);
+}
+
+TEST(Range, LiteralSuffixContainsNulBytes) {
+ constexpr auto literalPiece = "\0foo\0"_sp;
+ EXPECT_EQ(5u, literalPiece.size());
+}