Adding additional tests to ensure that initializer lists created from return values...

[oota-llvm.git] / unittests / ADT / HashingTest.cpp

diff --git a/unittests/ADT/HashingTest.cpp b/unittests/ADT/HashingTest.cpp
index c89ca14a0703fa201412d664d04d51caff8b2aa3..34eb5a52eb8a0fa11f3748480cff088509581b15 100644 (file)
--- a/unittests/ADT/HashingTest.cpp
+++ b/unittests/ADT/HashingTest.cpp
@@ -41,7 +41,7 @@ struct NonPOD {
 
 namespace hashing {
 namespace detail {
-template <> struct is_hashable_data<LargeTestInteger> : true_type {};
+template <> struct is_hashable_data<LargeTestInteger> : std::true_type {};
 } // namespace detail
 } // namespace hashing
 
@@ -51,17 +51,23 @@ using namespace llvm;
 
 namespace {
 
+enum TestEnumeration {
+  TE_Foo = 42,
+  TE_Bar = 43
+};
 
 TEST(HashingTest, HashValueBasicTest) {
   int x = 42, y = 43, c = 'x';
-  void *p = 0;
+  void *p = nullptr;
   uint64_t i = 71;
   const unsigned ci = 71;
   volatile int vi = 71;
   const volatile int cvi = 71;
   uintptr_t addr = reinterpret_cast<uintptr_t>(&y);
   EXPECT_EQ(hash_value(42), hash_value(x));
+  EXPECT_EQ(hash_value(42), hash_value(TE_Foo));
   EXPECT_NE(hash_value(42), hash_value(y));
+  EXPECT_NE(hash_value(42), hash_value(TE_Bar));
   EXPECT_NE(hash_value(42), hash_value(p));
   EXPECT_EQ(hash_value(71), hash_value(i));
   EXPECT_EQ(hash_value(71), hash_value(ci));
@@ -70,7 +76,9 @@ TEST(HashingTest, HashValueBasicTest) {
   EXPECT_EQ(hash_value(c), hash_value('x'));
   EXPECT_EQ(hash_value('4'), hash_value('0' + 4));
   EXPECT_EQ(hash_value(addr), hash_value(&y));
+}
 
+TEST(HashingTest, HashValueStdPair) {
   EXPECT_EQ(hash_combine(42, 43), hash_value(std::make_pair(42, 43)));
   EXPECT_NE(hash_combine(43, 42), hash_value(std::make_pair(42, 43)));
   EXPECT_NE(hash_combine(42, 43), hash_value(std::make_pair(42ull, 43ull)));
@@ -95,6 +103,23 @@ TEST(HashingTest, HashValueBasicTest) {
             hash_value(std::make_pair(obj1, std::make_pair(obj2, obj3))));
 }
 
+TEST(HashingTest, HashValueStdString) {
+  std::string s = "Hello World!";
+  EXPECT_EQ(hash_combine_range(s.c_str(), s.c_str() + s.size()), hash_value(s));
+  EXPECT_EQ(hash_combine_range(s.c_str(), s.c_str() + s.size() - 1),
+            hash_value(s.substr(0, s.size() - 1)));
+  EXPECT_EQ(hash_combine_range(s.c_str() + 1, s.c_str() + s.size() - 1),
+            hash_value(s.substr(1, s.size() - 2)));
+
+  std::wstring ws = L"Hello Wide World!";
+  EXPECT_EQ(hash_combine_range(ws.c_str(), ws.c_str() + ws.size()),
+            hash_value(ws));
+  EXPECT_EQ(hash_combine_range(ws.c_str(), ws.c_str() + ws.size() - 1),
+            hash_value(ws.substr(0, ws.size() - 1)));
+  EXPECT_EQ(hash_combine_range(ws.c_str() + 1, ws.c_str() + ws.size() - 1),
+            hash_value(ws.substr(1, ws.size() - 2)));
+}
+
 template <typename T, size_t N> T *begin(T (&arr)[N]) { return arr; }
 template <typename T, size_t N> T *end(T (&arr)[N]) { return arr + N; }
 
@@ -320,7 +345,7 @@ TEST(HashingTest, HashCombineBasicTest) {
   EXPECT_EQ(hash_combine_range(arr1, arr1 + 6),
             hash_combine(i1, i2, i3, i4, i5, i6));
 
-  // Hashing a sequence of heterogenous types which *happen* to all produce the
+  // Hashing a sequence of heterogeneous types which *happen* to all produce the
   // same data for hashing produces the same as a range-based hash of the
   // fundamental values.
   const size_t s1 = 1024, s2 = 8888, s3 = 9000000;
@@ -396,4 +421,29 @@ TEST(HashingTest, HashCombineBasicTest) {
             hash_combine(bigarr[0], l2, bigarr[9], l3, bigarr[18], bigarr[19]));
 }
 
+TEST(HashingTest, HashCombineArgs18) {
+  // This tests that we can pass in up to 18 args.
+#define CHECK_SAME(...)                                                        \
+  EXPECT_EQ(hash_combine(__VA_ARGS__), hash_combine(__VA_ARGS__))
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8, 9);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7, 8);
+  CHECK_SAME(1, 2, 3, 4, 5, 6, 7);
+  CHECK_SAME(1, 2, 3, 4, 5, 6);
+  CHECK_SAME(1, 2, 3, 4, 5);
+  CHECK_SAME(1, 2, 3, 4);
+  CHECK_SAME(1, 2, 3);
+  CHECK_SAME(1, 2);
+  CHECK_SAME(1);
+#undef CHECK_SAME
+}
+
 }